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BIOGEN 401(K) SAVINGS PLAN 401k Plan overview

Plan NameBIOGEN 401(K) SAVINGS PLAN
Plan identification number 001

BIOGEN 401(K) SAVINGS PLAN Benefits

401k Plan TypeDefined Contribution Pension
Plan Features/Benefits
  • Age/Service Weighted or new comparability or similar plan - Age/Service Weighted Plan: Allocations are based on age, service, or age and service. New comparability or similar plan: Allocations are based on participant classifications and a classification(s) consists entirely or predominantly of highly compensated employees; or the plan provides an additional allocation rate on compensation above a specified threshold, and the theshold or additional rate exceeds the maximum threshold or rate allowed under the permitted disparity rules of section 401(l).
  • Profit-sharing
  • ERISA section 404(c) Plan - This plan, or any part of it is intended to meet the conditions of 29 CFR 2550.404c-1.
  • Total participant-directed account plan - Participants have the opportunity to direct the investment of all the assets allocated to their individual accounts, regardless of whether 29 CFR 2550.404c-1 is intended to be met.
  • Code section 401(k) feature - A cash or deferred arrangement described in Code section 401(k) that is part of a qualified defined contribution plan that provides for an election by employees to defer part of their compensation or receive these amounts in cash.
  • Code section 401(m) arrangement - Employee contributions are allocated to separate accounts under the plan or employer contributions are based, in whole or in part, on employee deferrals or contribtions to the plan. Not applicable if plan is 401(k) plan with only QNECs and/or QMACs. Also not applicable if Code section 403(b)(1), 403(b)(7) or 408 arrangements/accounts/annuities.
  • Total or partial participant-directed account plan - plan uses default investment account for participants who fail to direct assets in their account.

401k Sponsoring company profile

BIOGEN INC. has sponsored the creation of one or more 401k plans.

Company Name:BIOGEN INC.
Employer identification number (EIN):330112644
NAIC Classification:325410

Form 5500 Filing Information

Submission information for form 5500 for 401k plan BIOGEN 401(K) SAVINGS PLAN

Plan id# Filing Submission Date Name of Administrator Date Administrator SignedName of Company SponsorDate Sponsor Signed
0012022-01-01
0012021-01-01
0012020-01-01
0012019-01-01
0012018-01-01
0012017-01-01CHRISTINE GERMAIN
0012016-01-01CHRISTINE GERMAIN
0012015-01-01ANNA SINGER
0012014-01-01KELLY CARLSON
0012013-01-01KELLY CARLSON
0012012-01-01KELLY CARLSON
0012011-01-01KELLY CARLSON
0012010-01-01KELLY CARLSON
0012009-01-01KELLY CARLSON KELLY CARLSON2010-09-15

Plan Statistics for BIOGEN 401(K) SAVINGS PLAN

401k plan membership statisitcs for BIOGEN 401(K) SAVINGS PLAN

Measure Date Value
2022: BIOGEN 401(K) SAVINGS PLAN 2022 401k membership
Total participants, beginning-of-year2022-01-018,420
Total number of active participants reported on line 7a of the Form 55002022-01-015,003
Number of retired or separated participants receiving benefits2022-01-0122
Number of other retired or separated participants entitled to future benefits2022-01-013,323
Total of all active and inactive participants2022-01-018,348
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2022-01-011
Total participants2022-01-018,349
Number of participants with account balances2022-01-018,119
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2022-01-010
2021: BIOGEN 401(K) SAVINGS PLAN 2021 401k membership
Total participants, beginning-of-year2021-01-018,247
Total number of active participants reported on line 7a of the Form 55002021-01-015,611
Number of retired or separated participants receiving benefits2021-01-0118
Number of other retired or separated participants entitled to future benefits2021-01-012,790
Total of all active and inactive participants2021-01-018,419
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2021-01-011
Total participants2021-01-018,420
Number of participants with account balances2021-01-018,180
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2021-01-010
2020: BIOGEN 401(K) SAVINGS PLAN 2020 401k membership
Total participants, beginning-of-year2020-01-017,255
Total number of active participants reported on line 7a of the Form 55002020-01-015,702
Number of retired or separated participants receiving benefits2020-01-013
Number of other retired or separated participants entitled to future benefits2020-01-012,539
Total of all active and inactive participants2020-01-018,244
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2020-01-013
Total participants2020-01-018,247
Number of participants with account balances2020-01-017,984
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2020-01-010
2019: BIOGEN 401(K) SAVINGS PLAN 2019 401k membership
Total participants, beginning-of-year2019-01-016,878
Total number of active participants reported on line 7a of the Form 55002019-01-014,721
Number of retired or separated participants receiving benefits2019-01-0123
Number of other retired or separated participants entitled to future benefits2019-01-012,509
Total of all active and inactive participants2019-01-017,253
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2019-01-012
Total participants2019-01-017,255
Number of participants with account balances2019-01-017,029
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2019-01-010
2018: BIOGEN 401(K) SAVINGS PLAN 2018 401k membership
Total participants, beginning-of-year2018-01-016,674
Total number of active participants reported on line 7a of the Form 55002018-01-014,513
Number of retired or separated participants receiving benefits2018-01-0118
Number of other retired or separated participants entitled to future benefits2018-01-012,346
Total of all active and inactive participants2018-01-016,877
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2018-01-011
Total participants2018-01-016,878
Number of participants with account balances2018-01-016,720
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2018-01-010
2017: BIOGEN 401(K) SAVINGS PLAN 2017 401k membership
Total participants, beginning-of-year2017-01-016,585
Total number of active participants reported on line 7a of the Form 55002017-01-014,440
Number of retired or separated participants receiving benefits2017-01-0112
Number of other retired or separated participants entitled to future benefits2017-01-012,219
Total of all active and inactive participants2017-01-016,671
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2017-01-013
Total participants2017-01-016,674
Number of participants with account balances2017-01-016,489
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2017-01-010
2016: BIOGEN 401(K) SAVINGS PLAN 2016 401k membership
Total participants, beginning-of-year2016-01-016,632
Total number of active participants reported on line 7a of the Form 55002016-01-014,604
Number of retired or separated participants receiving benefits2016-01-018
Number of other retired or separated participants entitled to future benefits2016-01-011,970
Total of all active and inactive participants2016-01-016,582
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2016-01-013
Total participants2016-01-016,585
Number of participants with account balances2016-01-016,344
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2016-01-010
2015: BIOGEN 401(K) SAVINGS PLAN 2015 401k membership
Total participants, beginning-of-year2015-01-016,381
Total number of active participants reported on line 7a of the Form 55002015-01-014,707
Number of retired or separated participants receiving benefits2015-01-014
Number of other retired or separated participants entitled to future benefits2015-01-011,919
Total of all active and inactive participants2015-01-016,630
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2015-01-012
Total participants2015-01-016,632
Number of participants with account balances2015-01-016,479
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2015-01-010
2014: BIOGEN 401(K) SAVINGS PLAN 2014 401k membership
Total participants, beginning-of-year2014-01-015,937
Total number of active participants reported on line 7a of the Form 55002014-01-014,994
Number of retired or separated participants receiving benefits2014-01-013
Number of other retired or separated participants entitled to future benefits2014-01-011,382
Total of all active and inactive participants2014-01-016,379
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2014-01-012
Total participants2014-01-016,381
Number of participants with account balances2014-01-016,166
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2014-01-010
2013: BIOGEN 401(K) SAVINGS PLAN 2013 401k membership
Total participants, beginning-of-year2013-01-015,514
Total number of active participants reported on line 7a of the Form 55002013-01-014,558
Number of retired or separated participants receiving benefits2013-01-012
Number of other retired or separated participants entitled to future benefits2013-01-011,375
Total of all active and inactive participants2013-01-015,935
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2013-01-012
Total participants2013-01-015,937
Number of participants with account balances2013-01-015,718
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2013-01-010
2012: BIOGEN 401(K) SAVINGS PLAN 2012 401k membership
Total participants, beginning-of-year2012-01-014,920
Total number of active participants reported on line 7a of the Form 55002012-01-014,079
Number of retired or separated participants receiving benefits2012-01-019
Number of other retired or separated participants entitled to future benefits2012-01-011,424
Total of all active and inactive participants2012-01-015,512
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2012-01-012
Total participants2012-01-015,514
Number of participants with account balances2012-01-015,203
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2012-01-010
2011: BIOGEN 401(K) SAVINGS PLAN 2011 401k membership
Total participants, beginning-of-year2011-01-014,775
Total number of active participants reported on line 7a of the Form 55002011-01-013,431
Number of retired or separated participants receiving benefits2011-01-016
Number of other retired or separated participants entitled to future benefits2011-01-011,482
Total of all active and inactive participants2011-01-014,919
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2011-01-011
Total participants2011-01-014,920
Number of participants with account balances2011-01-014,694
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2011-01-010
2010: BIOGEN 401(K) SAVINGS PLAN 2010 401k membership
Total participants, beginning-of-year2010-01-014,708
Total number of active participants reported on line 7a of the Form 55002010-01-013,614
Number of retired or separated participants receiving benefits2010-01-017
Number of other retired or separated participants entitled to future benefits2010-01-011,153
Total of all active and inactive participants2010-01-014,774
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2010-01-011
Total participants2010-01-014,775
Number of participants with account balances2010-01-014,546
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2010-01-010
2009: BIOGEN 401(K) SAVINGS PLAN 2009 401k membership
Total participants, beginning-of-year2009-01-014,656
Total number of active participants reported on line 7a of the Form 55002009-01-013,599
Number of retired or separated participants receiving benefits2009-01-016
Number of other retired or separated participants entitled to future benefits2009-01-011,100
Total of all active and inactive participants2009-01-014,705
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits2009-01-013
Total participants2009-01-014,708
Number of participants with account balances2009-01-014,462
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested2009-01-010

Financial Data on BIOGEN 401(K) SAVINGS PLAN

Measure Date Value
2022 : BIOGEN 401(K) SAVINGS PLAN 2022 401k financial data
Unrealized appreciation/depreciation of real estate assets2022-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2022-12-31$0
Total unrealized appreciation/depreciation of assets2022-12-31$0
Total transfer of assets to this plan2022-12-31$0
Total transfer of assets from this plan2022-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2022-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2022-12-31$0
Expenses. Interest paid2022-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022022-12-31$0
Total income from all sources (including contributions)2022-12-31$-239,562,110
Total loss/gain on sale of assets2022-12-31$0
Total of all expenses incurred2022-12-31$168,283,305
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2022-12-31$169,442,908
Expenses. Certain deemed distributions of participant loans2022-12-31$0
Value of total corrective distributions2022-12-31$271,183
Total contributions o plan (from employers,participants, others, non cash contrinutions)2022-12-31$150,133,669
Value of total assets at end of year2022-12-31$1,601,252,778
Value of total assets at beginning of year2022-12-31$2,009,098,193
Total of administrative expenses incurred including professional, contract, advisory and management fees2022-12-31$-1,430,786
Total income from rents2022-12-31$0
Total interest from all sources2022-12-31$1,560,728
Total dividends received (eg from common stock, registered investment company shares)2022-12-31$84,552,241
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2022-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2022-12-31$84,552,241
Assets. Real estate other than employer real property at end of year2022-12-31$0
Assets. Real estate other than employer real property at beginning of year2022-12-31$0
Administrative expenses professional fees incurred2022-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2022-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2022-12-31$0
Was this plan covered by a fidelity bond2022-12-31Yes
Value of fidelity bond cover2022-12-31$10,000,000
If this is an individual account plan, was there a blackout period2022-12-31No
Were there any nonexempt tranactions with any party-in-interest2022-12-31No
Contributions received from participants2022-12-31$78,427,279
Participant contributions at end of year2022-12-31$12,096,505
Participant contributions at beginning of year2022-12-31$12,635,596
Participant contributions at end of year2022-12-31$0
Participant contributions at beginning of year2022-12-31$0
Assets. Other investments not covered elsewhere at end of year2022-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2022-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2022-12-31$18,764,033
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2022-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2022-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2022-12-31$0
Assets. Loans (other than to participants) at end of year2022-12-31$0
Assets. Loans (other than to participants) at beginning of year2022-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2022-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2022-12-31$0
Other income not declared elsewhere2022-12-31$0
Administrative expenses (other) incurred2022-12-31$-1,430,786
Liabilities. Value of operating payables at end of year2022-12-31$0
Liabilities. Value of operating payables at beginning of year2022-12-31$0
Total non interest bearing cash at end of year2022-12-31$0
Total non interest bearing cash at beginning of year2022-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2022-12-31No
Income. Non cash contributions2022-12-31$0
Value of net income/loss2022-12-31$-407,845,415
Value of net assets at end of year (total assets less liabilities)2022-12-31$1,601,252,778
Value of net assets at beginning of year (total assets less liabilities)2022-12-31$2,009,098,193
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2022-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2022-12-31No
Were any leases to which the plan was party in default or uncollectible2022-12-31No
Assets. partnership/joint venture interests at end of year2022-12-31$0
Assets. partnership/joint venture interests at beginning of year2022-12-31$0
Investment advisory and management fees2022-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2022-12-31$1,229,803,377
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2022-12-31$1,518,752,156
Value of interest in pooled separate accounts at end of year2022-12-31$0
Value of interest in pooled separate accounts at beginning of year2022-12-31$0
Interest on participant loans2022-12-31$582,589
Income. Interest from loans (other than to participants)2022-12-31$0
Interest earned on other investments2022-12-31$0
Income. Interest from US Government securities2022-12-31$0
Income. Interest from corporate debt instruments2022-12-31$0
Value of interest in master investment trust accounts at end of year2022-12-31$0
Value of interest in master investment trust accounts at beginning of year2022-12-31$0
Value of interest in common/collective trusts at end of year2022-12-31$291,860,560
Value of interest in common/collective trusts at beginning of year2022-12-31$413,668,881
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2022-12-31$61,609,957
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2022-12-31$57,971,962
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2022-12-31$57,971,962
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2022-12-31$978,139
Assets. Value of investments in 103.12 investment entities at end of year2022-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2022-12-31$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year2022-12-31$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year2022-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2022-12-31$0
Asset value of US Government securities at end of year2022-12-31$0
Asset value of US Government securities at beginning of year2022-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2022-12-31$-363,087,813
Net investment gain/loss from pooled separate accounts2022-12-31$0
Net investment gain or loss from common/collective trusts2022-12-31$-112,720,935
Net gain/loss from 103.12 investment entities2022-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2022-12-31No
Was there a failure to transmit to the plan any participant contributions2022-12-31No
Has the plan failed to provide any benefit when due under the plan2022-12-31No
Assets. Invements in employer securities at end of year2022-12-31$0
Assets. Invements in employer securities at beginning of year2022-12-31$0
Assets. Value of employer real property at end of year2022-12-31$0
Assets. Value of employer real property at beginning of year2022-12-31$0
Contributions received in cash from employer2022-12-31$52,942,357
Employer contributions (assets) at end of year2022-12-31$5,882,379
Employer contributions (assets) at beginning of year2022-12-31$6,069,598
Income. Dividends from preferred stock2022-12-31$0
Income. Dividends from common stock2022-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2022-12-31$169,442,908
Asset. Corporate debt instrument preferred debt at end of year2022-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2022-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2022-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2022-12-31$0
Contract administrator fees2022-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32022-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2022-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2022-12-31$0
Liabilities. Value of benefit claims payable at end of year2022-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2022-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2022-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2022-12-31$0
Did the plan have assets held for investment2022-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2022-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2022-12-31No
Aggregate proceeds on sale of assets2022-12-31$0
Aggregate carrying amount (costs) on sale of assets2022-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2022-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2022-12-31$0
Opinion of an independent qualified public accountant for this plan2022-12-31Unqualified
Accountancy firm name2022-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2022-12-31134008324
2021 : BIOGEN 401(K) SAVINGS PLAN 2021 401k financial data
Unrealized appreciation/depreciation of real estate assets2021-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2021-12-31$0
Total unrealized appreciation/depreciation of assets2021-12-31$0
Total transfer of assets to this plan2021-12-31$0
Total transfer of assets from this plan2021-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2021-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2021-12-31$0
Expenses. Interest paid2021-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022021-12-31$0
Total income from all sources (including contributions)2021-12-31$441,902,036
Total loss/gain on sale of assets2021-12-31$0
Total of all expenses incurred2021-12-31$135,491,888
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2021-12-31$136,444,115
Expenses. Certain deemed distributions of participant loans2021-12-31$15,751
Value of total corrective distributions2021-12-31$280,071
Total contributions o plan (from employers,participants, others, non cash contrinutions)2021-12-31$160,025,878
Value of total assets at end of year2021-12-31$2,009,098,193
Value of total assets at beginning of year2021-12-31$1,702,688,045
Total of administrative expenses incurred including professional, contract, advisory and management fees2021-12-31$-1,248,049
Total income from rents2021-12-31$0
Total interest from all sources2021-12-31$594,166
Total dividends received (eg from common stock, registered investment company shares)2021-12-31$135,270,231
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2021-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2021-12-31$135,270,231
Assets. Real estate other than employer real property at end of year2021-12-31$0
Assets. Real estate other than employer real property at beginning of year2021-12-31$0
Administrative expenses professional fees incurred2021-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2021-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2021-12-31$0
Was this plan covered by a fidelity bond2021-12-31Yes
Value of fidelity bond cover2021-12-31$10,000,000
If this is an individual account plan, was there a blackout period2021-12-31No
Were there any nonexempt tranactions with any party-in-interest2021-12-31No
Contributions received from participants2021-12-31$80,152,447
Participant contributions at end of year2021-12-31$12,635,596
Participant contributions at beginning of year2021-12-31$11,023,896
Participant contributions at end of year2021-12-31$0
Participant contributions at beginning of year2021-12-31$0
Assets. Other investments not covered elsewhere at end of year2021-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2021-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2021-12-31$25,060,751
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2021-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2021-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2021-12-31$0
Assets. Loans (other than to participants) at end of year2021-12-31$0
Assets. Loans (other than to participants) at beginning of year2021-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2021-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2021-12-31$0
Other income not declared elsewhere2021-12-31$0
Administrative expenses (other) incurred2021-12-31$-1,248,049
Liabilities. Value of operating payables at end of year2021-12-31$0
Liabilities. Value of operating payables at beginning of year2021-12-31$0
Total non interest bearing cash at end of year2021-12-31$0
Total non interest bearing cash at beginning of year2021-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2021-12-31No
Income. Non cash contributions2021-12-31$0
Value of net income/loss2021-12-31$306,410,148
Value of net assets at end of year (total assets less liabilities)2021-12-31$2,009,098,193
Value of net assets at beginning of year (total assets less liabilities)2021-12-31$1,702,688,045
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2021-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2021-12-31No
Were any leases to which the plan was party in default or uncollectible2021-12-31No
Assets. partnership/joint venture interests at end of year2021-12-31$0
Assets. partnership/joint venture interests at beginning of year2021-12-31$0
Investment advisory and management fees2021-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2021-12-31$1,518,752,156
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2021-12-31$1,275,308,491
Value of interest in pooled separate accounts at end of year2021-12-31$0
Value of interest in pooled separate accounts at beginning of year2021-12-31$0
Interest on participant loans2021-12-31$588,045
Income. Interest from loans (other than to participants)2021-12-31$0
Interest earned on other investments2021-12-31$0
Income. Interest from US Government securities2021-12-31$0
Income. Interest from corporate debt instruments2021-12-31$0
Value of interest in master investment trust accounts at end of year2021-12-31$0
Value of interest in master investment trust accounts at beginning of year2021-12-31$0
Value of interest in common/collective trusts at end of year2021-12-31$413,668,881
Value of interest in common/collective trusts at beginning of year2021-12-31$350,361,588
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2021-12-31$57,971,962
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2021-12-31$60,512,257
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2021-12-31$60,512,257
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2021-12-31$6,121
Assets. Value of investments in 103.12 investment entities at end of year2021-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2021-12-31$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year2021-12-31$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year2021-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2021-12-31$0
Asset value of US Government securities at end of year2021-12-31$0
Asset value of US Government securities at beginning of year2021-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2021-12-31$70,379,977
Net investment gain/loss from pooled separate accounts2021-12-31$0
Net investment gain or loss from common/collective trusts2021-12-31$75,631,784
Net gain/loss from 103.12 investment entities2021-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2021-12-31No
Was there a failure to transmit to the plan any participant contributions2021-12-31No
Has the plan failed to provide any benefit when due under the plan2021-12-31No
Assets. Invements in employer securities at end of year2021-12-31$0
Assets. Invements in employer securities at beginning of year2021-12-31$0
Assets. Value of employer real property at end of year2021-12-31$0
Assets. Value of employer real property at beginning of year2021-12-31$0
Contributions received in cash from employer2021-12-31$54,812,680
Employer contributions (assets) at end of year2021-12-31$6,069,598
Employer contributions (assets) at beginning of year2021-12-31$5,481,813
Income. Dividends from preferred stock2021-12-31$0
Income. Dividends from common stock2021-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2021-12-31$136,444,115
Asset. Corporate debt instrument preferred debt at end of year2021-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2021-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2021-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2021-12-31$0
Contract administrator fees2021-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32021-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2021-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2021-12-31$0
Liabilities. Value of benefit claims payable at end of year2021-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2021-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2021-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2021-12-31$0
Did the plan have assets held for investment2021-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2021-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2021-12-31No
Aggregate proceeds on sale of assets2021-12-31$0
Aggregate carrying amount (costs) on sale of assets2021-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2021-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2021-12-31$0
Opinion of an independent qualified public accountant for this plan2021-12-31Unqualified
Accountancy firm name2021-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2021-12-31134008324
2020 : BIOGEN 401(K) SAVINGS PLAN 2020 401k financial data
Unrealized appreciation/depreciation of real estate assets2020-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2020-12-31$0
Total unrealized appreciation/depreciation of assets2020-12-31$0
Total transfer of assets to this plan2020-12-31$0
Total transfer of assets from this plan2020-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2020-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2020-12-31$0
Expenses. Interest paid2020-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022020-12-31$0
Total income from all sources (including contributions)2020-12-31$465,840,306
Total loss/gain on sale of assets2020-12-31$0
Total of all expenses incurred2020-12-31$109,122,080
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2020-12-31$109,815,645
Expenses. Certain deemed distributions of participant loans2020-12-31$22,286
Value of total corrective distributions2020-12-31$203,957
Total contributions o plan (from employers,participants, others, non cash contrinutions)2020-12-31$151,121,462
Value of total assets at end of year2020-12-31$1,702,688,045
Value of total assets at beginning of year2020-12-31$1,345,969,819
Total of administrative expenses incurred including professional, contract, advisory and management fees2020-12-31$-919,808
Total income from rents2020-12-31$0
Total interest from all sources2020-12-31$786,455
Total dividends received (eg from common stock, registered investment company shares)2020-12-31$54,093,385
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2020-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2020-12-31$54,093,385
Assets. Real estate other than employer real property at end of year2020-12-31$0
Assets. Real estate other than employer real property at beginning of year2020-12-31$0
Administrative expenses professional fees incurred2020-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2020-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2020-12-31$0
Was this plan covered by a fidelity bond2020-12-31Yes
Value of fidelity bond cover2020-12-31$10,000,000
If this is an individual account plan, was there a blackout period2020-12-31No
Were there any nonexempt tranactions with any party-in-interest2020-12-31No
Contributions received from participants2020-12-31$69,341,222
Participant contributions at end of year2020-12-31$11,023,896
Participant contributions at beginning of year2020-12-31$10,020,610
Participant contributions at end of year2020-12-31$0
Participant contributions at beginning of year2020-12-31$0
Assets. Other investments not covered elsewhere at end of year2020-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2020-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2020-12-31$32,983,524
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2020-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2020-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2020-12-31$0
Assets. Loans (other than to participants) at end of year2020-12-31$0
Assets. Loans (other than to participants) at beginning of year2020-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2020-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2020-12-31$0
Other income not declared elsewhere2020-12-31$0
Administrative expenses (other) incurred2020-12-31$-919,808
Liabilities. Value of operating payables at end of year2020-12-31$0
Liabilities. Value of operating payables at beginning of year2020-12-31$0
Total non interest bearing cash at end of year2020-12-31$0
Total non interest bearing cash at beginning of year2020-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2020-12-31No
Income. Non cash contributions2020-12-31$0
Value of net income/loss2020-12-31$356,718,226
Value of net assets at end of year (total assets less liabilities)2020-12-31$1,702,688,045
Value of net assets at beginning of year (total assets less liabilities)2020-12-31$1,345,969,819
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2020-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2020-12-31No
Were any leases to which the plan was party in default or uncollectible2020-12-31No
Assets. partnership/joint venture interests at end of year2020-12-31$0
Assets. partnership/joint venture interests at beginning of year2020-12-31$0
Investment advisory and management fees2020-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2020-12-31$1,275,308,491
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2020-12-31$1,040,498,411
Value of interest in pooled separate accounts at end of year2020-12-31$0
Value of interest in pooled separate accounts at beginning of year2020-12-31$0
Interest on participant loans2020-12-31$554,874
Income. Interest from loans (other than to participants)2020-12-31$0
Interest earned on other investments2020-12-31$0
Income. Interest from US Government securities2020-12-31$0
Income. Interest from corporate debt instruments2020-12-31$0
Value of interest in master investment trust accounts at end of year2020-12-31$0
Value of interest in master investment trust accounts at beginning of year2020-12-31$0
Value of interest in common/collective trusts at end of year2020-12-31$350,361,588
Value of interest in common/collective trusts at beginning of year2020-12-31$243,172,640
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2020-12-31$60,512,257
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2020-12-31$47,857,808
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2020-12-31$47,857,808
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2020-12-31$231,581
Assets. Value of investments in 103.12 investment entities at end of year2020-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2020-12-31$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year2020-12-31$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year2020-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2020-12-31$0
Asset value of US Government securities at end of year2020-12-31$0
Asset value of US Government securities at beginning of year2020-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2020-12-31$145,569,253
Net investment gain/loss from pooled separate accounts2020-12-31$0
Net investment gain or loss from common/collective trusts2020-12-31$114,269,751
Net gain/loss from 103.12 investment entities2020-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2020-12-31No
Was there a failure to transmit to the plan any participant contributions2020-12-31No
Has the plan failed to provide any benefit when due under the plan2020-12-31No
Assets. Invements in employer securities at end of year2020-12-31$0
Assets. Invements in employer securities at beginning of year2020-12-31$0
Assets. Value of employer real property at end of year2020-12-31$0
Assets. Value of employer real property at beginning of year2020-12-31$0
Contributions received in cash from employer2020-12-31$48,796,716
Employer contributions (assets) at end of year2020-12-31$5,481,813
Employer contributions (assets) at beginning of year2020-12-31$4,420,350
Income. Dividends from preferred stock2020-12-31$0
Income. Dividends from common stock2020-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2020-12-31$109,815,645
Asset. Corporate debt instrument preferred debt at end of year2020-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2020-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2020-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2020-12-31$0
Contract administrator fees2020-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32020-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2020-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2020-12-31$0
Liabilities. Value of benefit claims payable at end of year2020-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2020-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2020-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2020-12-31$0
Did the plan have assets held for investment2020-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2020-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2020-12-31No
Aggregate proceeds on sale of assets2020-12-31$0
Aggregate carrying amount (costs) on sale of assets2020-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2020-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2020-12-31$0
Opinion of an independent qualified public accountant for this plan2020-12-31Disclaimer
Accountancy firm name2020-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2020-12-31134008324
2019 : BIOGEN 401(K) SAVINGS PLAN 2019 401k financial data
Unrealized appreciation/depreciation of real estate assets2019-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2019-12-31$0
Total unrealized appreciation/depreciation of assets2019-12-31$0
Total transfer of assets to this plan2019-12-31$569,249
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2019-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2019-12-31$0
Expenses. Interest paid2019-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022019-12-31$0
Total income from all sources (including contributions)2019-12-31$391,210,417
Total loss/gain on sale of assets2019-12-31$0
Total of all expenses incurred2019-12-31$92,961,223
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2019-12-31$92,725,762
Expenses. Certain deemed distributions of participant loans2019-12-31$32,670
Value of total corrective distributions2019-12-31$169,656
Total contributions o plan (from employers,participants, others, non cash contrinutions)2019-12-31$113,812,395
Value of total assets at end of year2019-12-31$1,345,969,819
Value of total assets at beginning of year2019-12-31$1,047,151,376
Total of administrative expenses incurred including professional, contract, advisory and management fees2019-12-31$33,135
Total income from rents2019-12-31$0
Total interest from all sources2019-12-31$1,504,164
Total dividends received (eg from common stock, registered investment company shares)2019-12-31$51,004,456
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2019-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2019-12-31$51,004,456
Assets. Real estate other than employer real property at end of year2019-12-31$0
Assets. Real estate other than employer real property at beginning of year2019-12-31$0
Administrative expenses professional fees incurred2019-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2019-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2019-12-31$0
Was this plan covered by a fidelity bond2019-12-31Yes
Value of fidelity bond cover2019-12-31$10,000,000
If this is an individual account plan, was there a blackout period2019-12-31No
Were there any nonexempt tranactions with any party-in-interest2019-12-31No
Contributions received from participants2019-12-31$58,673,503
Participant contributions at end of year2019-12-31$10,020,610
Participant contributions at beginning of year2019-12-31$10,644,012
Participant contributions at end of year2019-12-31$0
Participant contributions at beginning of year2019-12-31$0
Assets. Other investments not covered elsewhere at end of year2019-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2019-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2019-12-31$13,370,419
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2019-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2019-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2019-12-31$0
Assets. Loans (other than to participants) at end of year2019-12-31$0
Assets. Loans (other than to participants) at beginning of year2019-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2019-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2019-12-31$0
Other income not declared elsewhere2019-12-31$866,578
Administrative expenses (other) incurred2019-12-31$33,135
Liabilities. Value of operating payables at end of year2019-12-31$0
Liabilities. Value of operating payables at beginning of year2019-12-31$0
Total non interest bearing cash at end of year2019-12-31$0
Total non interest bearing cash at beginning of year2019-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2019-12-31No
Income. Non cash contributions2019-12-31$0
Value of net income/loss2019-12-31$298,249,194
Value of net assets at end of year (total assets less liabilities)2019-12-31$1,345,969,819
Value of net assets at beginning of year (total assets less liabilities)2019-12-31$1,047,151,376
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2019-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2019-12-31No
Were any leases to which the plan was party in default or uncollectible2019-12-31No
Assets. partnership/joint venture interests at end of year2019-12-31$0
Assets. partnership/joint venture interests at beginning of year2019-12-31$0
Investment advisory and management fees2019-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2019-12-31$1,040,498,411
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2019-12-31$798,193,355
Value of interest in pooled separate accounts at end of year2019-12-31$0
Value of interest in pooled separate accounts at beginning of year2019-12-31$0
Interest on participant loans2019-12-31$568,535
Income. Interest from loans (other than to participants)2019-12-31$0
Interest earned on other investments2019-12-31$0
Income. Interest from US Government securities2019-12-31$0
Income. Interest from corporate debt instruments2019-12-31$0
Value of interest in master investment trust accounts at end of year2019-12-31$0
Value of interest in master investment trust accounts at beginning of year2019-12-31$0
Value of interest in common/collective trusts at end of year2019-12-31$243,172,640
Value of interest in common/collective trusts at beginning of year2019-12-31$196,321,529
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2019-12-31$47,857,808
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2019-12-31$37,908,890
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2019-12-31$37,908,890
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2019-12-31$935,629
Assets. Value of investments in 103.12 investment entities at end of year2019-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2019-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2019-12-31$0
Asset value of US Government securities at end of year2019-12-31$0
Asset value of US Government securities at beginning of year2019-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2019-12-31$158,945,523
Net investment gain/loss from pooled separate accounts2019-12-31$0
Net investment gain or loss from common/collective trusts2019-12-31$65,077,301
Net gain/loss from 103.12 investment entities2019-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2019-12-31No
Was there a failure to transmit to the plan any participant contributions2019-12-31No
Has the plan failed to provide any benefit when due under the plan2019-12-31No
Assets. Invements in employer securities at end of year2019-12-31$0
Assets. Invements in employer securities at beginning of year2019-12-31$0
Assets. Value of employer real property at end of year2019-12-31$0
Assets. Value of employer real property at beginning of year2019-12-31$0
Contributions received in cash from employer2019-12-31$41,768,473
Employer contributions (assets) at end of year2019-12-31$4,420,350
Employer contributions (assets) at beginning of year2019-12-31$4,083,590
Income. Dividends from preferred stock2019-12-31$0
Income. Dividends from common stock2019-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2019-12-31$92,725,762
Asset. Corporate debt instrument preferred debt at end of year2019-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2019-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2019-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2019-12-31$0
Contract administrator fees2019-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32019-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2019-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2019-12-31$0
Liabilities. Value of benefit claims payable at end of year2019-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2019-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2019-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2019-12-31$0
Did the plan have assets held for investment2019-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2019-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2019-12-31No
Aggregate proceeds on sale of assets2019-12-31$0
Aggregate carrying amount (costs) on sale of assets2019-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2019-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2019-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2019-12-31Yes
Opinion of an independent qualified public accountant for this plan2019-12-31Disclaimer
Accountancy firm name2019-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2019-12-31134008324
2018 : BIOGEN 401(K) SAVINGS PLAN 2018 401k financial data
Unrealized appreciation/depreciation of real estate assets2018-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2018-12-31$0
Total unrealized appreciation/depreciation of assets2018-12-31$0
Total transfer of assets to this plan2018-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2018-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2018-12-31$0
Expenses. Interest paid2018-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022018-12-31$0
Total income from all sources (including contributions)2018-12-31$38,632,346
Total loss/gain on sale of assets2018-12-31$0
Total of all expenses incurred2018-12-31$99,622,233
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2018-12-31$99,488,867
Expenses. Certain deemed distributions of participant loans2018-12-31$0
Value of total corrective distributions2018-12-31$118,821
Total contributions o plan (from employers,participants, others, non cash contrinutions)2018-12-31$107,227,215
Value of total assets at end of year2018-12-31$1,047,151,376
Value of total assets at beginning of year2018-12-31$1,108,141,263
Total of administrative expenses incurred including professional, contract, advisory and management fees2018-12-31$14,545
Total income from rents2018-12-31$0
Total interest from all sources2018-12-31$1,151,489
Total dividends received (eg from common stock, registered investment company shares)2018-12-31$63,971,997
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2018-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2018-12-31$63,971,997
Assets. Real estate other than employer real property at end of year2018-12-31$0
Assets. Real estate other than employer real property at beginning of year2018-12-31$0
Administrative expenses professional fees incurred2018-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2018-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2018-12-31$0
Was this plan covered by a fidelity bond2018-12-31Yes
Value of fidelity bond cover2018-12-31$10,000,000
If this is an individual account plan, was there a blackout period2018-12-31No
Were there any nonexempt tranactions with any party-in-interest2018-12-31No
Contributions received from participants2018-12-31$55,198,799
Participant contributions at end of year2018-12-31$10,644,012
Participant contributions at beginning of year2018-12-31$10,531,079
Participant contributions at end of year2018-12-31$0
Participant contributions at beginning of year2018-12-31$0
Assets. Other investments not covered elsewhere at end of year2018-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2018-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2018-12-31$12,642,520
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2018-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2018-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2018-12-31$0
Assets. Loans (other than to participants) at end of year2018-12-31$0
Assets. Loans (other than to participants) at beginning of year2018-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2018-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2018-12-31$0
Other income not declared elsewhere2018-12-31$788,184
Administrative expenses (other) incurred2018-12-31$14,545
Liabilities. Value of operating payables at end of year2018-12-31$0
Liabilities. Value of operating payables at beginning of year2018-12-31$0
Total non interest bearing cash at end of year2018-12-31$0
Total non interest bearing cash at beginning of year2018-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2018-12-31No
Income. Non cash contributions2018-12-31$0
Value of net income/loss2018-12-31$-60,989,887
Value of net assets at end of year (total assets less liabilities)2018-12-31$1,047,151,376
Value of net assets at beginning of year (total assets less liabilities)2018-12-31$1,108,141,263
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2018-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2018-12-31No
Were any leases to which the plan was party in default or uncollectible2018-12-31No
Assets. partnership/joint venture interests at end of year2018-12-31$0
Assets. partnership/joint venture interests at beginning of year2018-12-31$0
Investment advisory and management fees2018-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2018-12-31$798,193,355
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2018-12-31$834,771,408
Value of interest in pooled separate accounts at end of year2018-12-31$0
Value of interest in pooled separate accounts at beginning of year2018-12-31$0
Interest on participant loans2018-12-31$511,683
Income. Interest from loans (other than to participants)2018-12-31$0
Interest earned on other investments2018-12-31$0
Income. Interest from US Government securities2018-12-31$0
Income. Interest from corporate debt instruments2018-12-31$0
Value of interest in master investment trust accounts at end of year2018-12-31$0
Value of interest in master investment trust accounts at beginning of year2018-12-31$0
Value of interest in common/collective trusts at end of year2018-12-31$196,321,529
Value of interest in common/collective trusts at beginning of year2018-12-31$224,253,385
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2018-12-31$37,908,890
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2018-12-31$34,398,428
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2018-12-31$34,398,428
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2018-12-31$639,806
Assets. Value of investments in 103.12 investment entities at end of year2018-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2018-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2018-12-31$0
Asset value of US Government securities at end of year2018-12-31$0
Asset value of US Government securities at beginning of year2018-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2018-12-31$-117,969,949
Net investment gain/loss from pooled separate accounts2018-12-31$0
Net investment gain or loss from common/collective trusts2018-12-31$-16,536,590
Net gain/loss from 103.12 investment entities2018-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2018-12-31No
Was there a failure to transmit to the plan any participant contributions2018-12-31No
Has the plan failed to provide any benefit when due under the plan2018-12-31No
Assets. Invements in employer securities at end of year2018-12-31$0
Assets. Invements in employer securities at beginning of year2018-12-31$0
Assets. Value of employer real property at end of year2018-12-31$0
Assets. Value of employer real property at beginning of year2018-12-31$0
Contributions received in cash from employer2018-12-31$39,385,896
Employer contributions (assets) at end of year2018-12-31$4,083,590
Employer contributions (assets) at beginning of year2018-12-31$4,186,963
Income. Dividends from preferred stock2018-12-31$0
Income. Dividends from common stock2018-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2018-12-31$99,488,867
Asset. Corporate debt instrument preferred debt at end of year2018-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2018-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2018-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2018-12-31$0
Contract administrator fees2018-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32018-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2018-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2018-12-31$0
Liabilities. Value of benefit claims payable at end of year2018-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2018-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2018-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2018-12-31$0
Did the plan have assets held for investment2018-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2018-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2018-12-31No
Aggregate proceeds on sale of assets2018-12-31$0
Aggregate carrying amount (costs) on sale of assets2018-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2018-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2018-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2018-12-31Yes
Opinion of an independent qualified public accountant for this plan2018-12-31Disclaimer
Accountancy firm name2018-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2018-12-31134008324
2017 : BIOGEN 401(K) SAVINGS PLAN 2017 401k financial data
Unrealized appreciation/depreciation of real estate assets2017-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2017-12-31$0
Total unrealized appreciation/depreciation of assets2017-12-31$0
Total transfer of assets to this plan2017-12-31$0
Total transfer of assets from this plan2017-12-31$33,887,128
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2017-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2017-12-31$0
Expenses. Interest paid2017-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022017-12-31$0
Total income from all sources (including contributions)2017-12-31$294,975,922
Total loss/gain on sale of assets2017-12-31$0
Total of all expenses incurred2017-12-31$92,932,789
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2017-12-31$92,773,269
Expenses. Certain deemed distributions of participant loans2017-12-31$6,521
Value of total corrective distributions2017-12-31$143,359
Total contributions o plan (from employers,participants, others, non cash contrinutions)2017-12-31$104,496,730
Value of total assets at end of year2017-12-31$1,108,141,263
Value of total assets at beginning of year2017-12-31$939,985,258
Total of administrative expenses incurred including professional, contract, advisory and management fees2017-12-31$9,640
Total income from rents2017-12-31$0
Total interest from all sources2017-12-31$763,194
Total dividends received (eg from common stock, registered investment company shares)2017-12-31$48,876,465
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2017-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2017-12-31$48,876,465
Assets. Real estate other than employer real property at end of year2017-12-31$0
Assets. Real estate other than employer real property at beginning of year2017-12-31$0
Administrative expenses professional fees incurred2017-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2017-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2017-12-31$0
Was this plan covered by a fidelity bond2017-12-31Yes
Value of fidelity bond cover2017-12-31$10,000,000
If this is an individual account plan, was there a blackout period2017-12-31No
Were there any nonexempt tranactions with any party-in-interest2017-12-31No
Contributions received from participants2017-12-31$53,040,593
Participant contributions at end of year2017-12-31$10,531,079
Participant contributions at beginning of year2017-12-31$11,370,991
Participant contributions at end of year2017-12-31$0
Participant contributions at beginning of year2017-12-31$0
Assets. Other investments not covered elsewhere at end of year2017-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2017-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2017-12-31$12,694,402
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2017-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2017-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2017-12-31$0
Assets. Loans (other than to participants) at end of year2017-12-31$0
Assets. Loans (other than to participants) at beginning of year2017-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2017-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2017-12-31$0
Other income not declared elsewhere2017-12-31$641,806
Administrative expenses (other) incurred2017-12-31$9,640
Liabilities. Value of operating payables at end of year2017-12-31$0
Liabilities. Value of operating payables at beginning of year2017-12-31$0
Total non interest bearing cash at end of year2017-12-31$0
Total non interest bearing cash at beginning of year2017-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2017-12-31No
Income. Non cash contributions2017-12-31$0
Value of net income/loss2017-12-31$202,043,133
Value of net assets at end of year (total assets less liabilities)2017-12-31$1,108,141,263
Value of net assets at beginning of year (total assets less liabilities)2017-12-31$939,985,258
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2017-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2017-12-31No
Were any leases to which the plan was party in default or uncollectible2017-12-31No
Assets. partnership/joint venture interests at end of year2017-12-31$0
Assets. partnership/joint venture interests at beginning of year2017-12-31$0
Investment advisory and management fees2017-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2017-12-31$834,771,408
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2017-12-31$703,291,908
Value of interest in pooled separate accounts at end of year2017-12-31$0
Value of interest in pooled separate accounts at beginning of year2017-12-31$0
Interest on participant loans2017-12-31$467,382
Income. Interest from loans (other than to participants)2017-12-31$0
Interest earned on other investments2017-12-31$0
Income. Interest from US Government securities2017-12-31$0
Income. Interest from corporate debt instruments2017-12-31$0
Value of interest in master investment trust accounts at end of year2017-12-31$0
Value of interest in master investment trust accounts at beginning of year2017-12-31$0
Value of interest in common/collective trusts at end of year2017-12-31$224,253,385
Value of interest in common/collective trusts at beginning of year2017-12-31$186,751,887
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2017-12-31$34,398,428
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2017-12-31$34,318,686
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2017-12-31$34,318,686
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2017-12-31$295,812
Assets. Value of investments in 103.12 investment entities at end of year2017-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2017-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2017-12-31$0
Asset value of US Government securities at end of year2017-12-31$0
Asset value of US Government securities at beginning of year2017-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2017-12-31$85,675,100
Net investment gain/loss from pooled separate accounts2017-12-31$0
Net investment gain or loss from common/collective trusts2017-12-31$54,522,627
Net gain/loss from 103.12 investment entities2017-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2017-12-31No
Was there a failure to transmit to the plan any participant contributions2017-12-31No
Has the plan failed to provide any benefit when due under the plan2017-12-31No
Assets. Invements in employer securities at end of year2017-12-31$0
Assets. Invements in employer securities at beginning of year2017-12-31$0
Assets. Value of employer real property at end of year2017-12-31$0
Assets. Value of employer real property at beginning of year2017-12-31$0
Contributions received in cash from employer2017-12-31$38,761,735
Employer contributions (assets) at end of year2017-12-31$4,186,963
Employer contributions (assets) at beginning of year2017-12-31$4,251,786
Income. Dividends from preferred stock2017-12-31$0
Income. Dividends from common stock2017-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2017-12-31$92,773,269
Asset. Corporate debt instrument preferred debt at end of year2017-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2017-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2017-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2017-12-31$0
Contract administrator fees2017-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32017-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2017-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2017-12-31$0
Liabilities. Value of benefit claims payable at end of year2017-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2017-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2017-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2017-12-31$0
Did the plan have assets held for investment2017-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2017-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2017-12-31No
Aggregate proceeds on sale of assets2017-12-31$0
Aggregate carrying amount (costs) on sale of assets2017-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2017-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2017-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2017-12-31Yes
Opinion of an independent qualified public accountant for this plan2017-12-31Disclaimer
Accountancy firm name2017-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2017-12-31134008324
2016 : BIOGEN 401(K) SAVINGS PLAN 2016 401k financial data
Unrealized appreciation/depreciation of real estate assets2016-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2016-12-31$0
Total unrealized appreciation/depreciation of assets2016-12-31$0
Total transfer of assets to this plan2016-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2016-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2016-12-31$0
Expenses. Interest paid2016-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022016-12-31$0
Total income from all sources (including contributions)2016-12-31$167,777,611
Total loss/gain on sale of assets2016-12-31$0
Total of all expenses incurred2016-12-31$100,741,928
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2016-12-31$101,118,534
Expenses. Certain deemed distributions of participant loans2016-12-31$0
Value of total corrective distributions2016-12-31$32,701
Total contributions o plan (from employers,participants, others, non cash contrinutions)2016-12-31$103,126,813
Value of total assets at end of year2016-12-31$939,985,258
Value of total assets at beginning of year2016-12-31$872,949,575
Total of administrative expenses incurred including professional, contract, advisory and management fees2016-12-31$-409,307
Total income from rents2016-12-31$0
Total interest from all sources2016-12-31$611,664
Total dividends received (eg from common stock, registered investment company shares)2016-12-31$26,509,009
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2016-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2016-12-31$26,509,009
Assets. Real estate other than employer real property at end of year2016-12-31$0
Assets. Real estate other than employer real property at beginning of year2016-12-31$0
Administrative expenses professional fees incurred2016-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2016-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2016-12-31$0
Was this plan covered by a fidelity bond2016-12-31Yes
Value of fidelity bond cover2016-12-31$10,000,000
If this is an individual account plan, was there a blackout period2016-12-31No
Were there any nonexempt tranactions with any party-in-interest2016-12-31No
Contributions received from participants2016-12-31$53,284,997
Participant contributions at end of year2016-12-31$11,370,991
Participant contributions at beginning of year2016-12-31$11,631,833
Participant contributions at end of year2016-12-31$0
Participant contributions at beginning of year2016-12-31$0
Assets. Other investments not covered elsewhere at end of year2016-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2016-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2016-12-31$10,633,085
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2016-12-31$425,859
Value of other receiveables (less allowance for doubtful accounts) at end of year2016-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2016-12-31$0
Assets. Loans (other than to participants) at end of year2016-12-31$0
Assets. Loans (other than to participants) at beginning of year2016-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2016-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2016-12-31$0
Other income not declared elsewhere2016-12-31$409,307
Administrative expenses (other) incurred2016-12-31$-409,307
Liabilities. Value of operating payables at end of year2016-12-31$0
Liabilities. Value of operating payables at beginning of year2016-12-31$0
Total non interest bearing cash at end of year2016-12-31$0
Total non interest bearing cash at beginning of year2016-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2016-12-31No
Income. Non cash contributions2016-12-31$0
Value of net income/loss2016-12-31$67,035,683
Value of net assets at end of year (total assets less liabilities)2016-12-31$939,985,258
Value of net assets at beginning of year (total assets less liabilities)2016-12-31$872,949,575
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2016-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2016-12-31No
Were any leases to which the plan was party in default or uncollectible2016-12-31No
Assets. partnership/joint venture interests at end of year2016-12-31$0
Assets. partnership/joint venture interests at beginning of year2016-12-31$0
Investment advisory and management fees2016-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2016-12-31$703,291,908
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2016-12-31$626,817,920
Value of interest in pooled separate accounts at end of year2016-12-31$0
Value of interest in pooled separate accounts at beginning of year2016-12-31$0
Interest on participant loans2016-12-31$469,060
Income. Interest from loans (other than to participants)2016-12-31$0
Interest earned on other investments2016-12-31$0
Income. Interest from US Government securities2016-12-31$0
Income. Interest from corporate debt instruments2016-12-31$0
Value of interest in master investment trust accounts at end of year2016-12-31$0
Value of interest in master investment trust accounts at beginning of year2016-12-31$0
Value of interest in common/collective trusts at end of year2016-12-31$186,751,887
Value of interest in common/collective trusts at beginning of year2016-12-31$199,763,626
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2016-12-31$34,318,686
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2016-12-31$30,070,097
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2016-12-31$30,070,097
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2016-12-31$142,604
Assets. Value of investments in 103.12 investment entities at end of year2016-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2016-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2016-12-31$0
Asset value of US Government securities at end of year2016-12-31$0
Asset value of US Government securities at beginning of year2016-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2016-12-31$28,148,421
Net investment gain/loss from pooled separate accounts2016-12-31$0
Net investment gain or loss from common/collective trusts2016-12-31$8,972,397
Net gain/loss from 103.12 investment entities2016-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2016-12-31No
Was there a failure to transmit to the plan any participant contributions2016-12-31No
Has the plan failed to provide any benefit when due under the plan2016-12-31No
Assets. Invements in employer securities at end of year2016-12-31$0
Assets. Invements in employer securities at beginning of year2016-12-31$0
Assets. Value of employer real property at end of year2016-12-31$0
Assets. Value of employer real property at beginning of year2016-12-31$0
Contributions received in cash from employer2016-12-31$39,208,731
Employer contributions (assets) at end of year2016-12-31$4,251,786
Employer contributions (assets) at beginning of year2016-12-31$4,666,099
Income. Dividends from preferred stock2016-12-31$0
Income. Dividends from common stock2016-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2016-12-31$100,692,675
Asset. Corporate debt instrument preferred debt at end of year2016-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2016-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2016-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2016-12-31$0
Contract administrator fees2016-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32016-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2016-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2016-12-31$0
Liabilities. Value of benefit claims payable at end of year2016-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2016-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2016-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2016-12-31$0
Did the plan have assets held for investment2016-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2016-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2016-12-31No
Aggregate proceeds on sale of assets2016-12-31$0
Aggregate carrying amount (costs) on sale of assets2016-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2016-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2016-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2016-12-31Yes
Opinion of an independent qualified public accountant for this plan2016-12-31Disclaimer
Accountancy firm name2016-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2016-12-31134008324
2015 : BIOGEN 401(K) SAVINGS PLAN 2015 401k financial data
Unrealized appreciation/depreciation of real estate assets2015-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2015-12-31$0
Total unrealized appreciation/depreciation of assets2015-12-31$0
Total transfer of assets to this plan2015-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2015-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2015-12-31$0
Expenses. Interest paid2015-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022015-12-31$0
Total income from all sources (including contributions)2015-12-31$132,978,161
Total loss/gain on sale of assets2015-12-31$0
Total of all expenses incurred2015-12-31$83,882,445
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2015-12-31$84,065,392
Expenses. Certain deemed distributions of participant loans2015-12-31$6,530
Value of total corrective distributions2015-12-31$159,001
Total contributions o plan (from employers,participants, others, non cash contrinutions)2015-12-31$119,911,704
Value of total assets at end of year2015-12-31$872,949,575
Value of total assets at beginning of year2015-12-31$823,853,859
Total of administrative expenses incurred including professional, contract, advisory and management fees2015-12-31$-348,478
Total income from rents2015-12-31$0
Total interest from all sources2015-12-31$497,218
Total dividends received (eg from common stock, registered investment company shares)2015-12-31$40,113,439
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2015-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2015-12-31$40,113,439
Assets. Real estate other than employer real property at end of year2015-12-31$0
Assets. Real estate other than employer real property at beginning of year2015-12-31$0
Administrative expenses professional fees incurred2015-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2015-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2015-12-31$0
Was this plan covered by a fidelity bond2015-12-31Yes
Value of fidelity bond cover2015-12-31$10,000,000
If this is an individual account plan, was there a blackout period2015-12-31No
Were there any nonexempt tranactions with any party-in-interest2015-12-31No
Contributions received from participants2015-12-31$60,581,530
Participant contributions at end of year2015-12-31$11,631,833
Participant contributions at beginning of year2015-12-31$10,337,084
Participant contributions at end of year2015-12-31$0
Participant contributions at beginning of year2015-12-31$0
Assets. Other investments not covered elsewhere at end of year2015-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2015-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2015-12-31$14,787,122
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2015-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2015-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2015-12-31$0
Assets. Loans (other than to participants) at end of year2015-12-31$0
Assets. Loans (other than to participants) at beginning of year2015-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2015-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2015-12-31$0
Other income not declared elsewhere2015-12-31$0
Administrative expenses (other) incurred2015-12-31$-348,478
Liabilities. Value of operating payables at end of year2015-12-31$0
Liabilities. Value of operating payables at beginning of year2015-12-31$0
Total non interest bearing cash at end of year2015-12-31$0
Total non interest bearing cash at beginning of year2015-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2015-12-31No
Income. Non cash contributions2015-12-31$0
Value of net income/loss2015-12-31$49,095,716
Value of net assets at end of year (total assets less liabilities)2015-12-31$872,949,575
Value of net assets at beginning of year (total assets less liabilities)2015-12-31$823,853,859
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2015-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2015-12-31No
Were any leases to which the plan was party in default or uncollectible2015-12-31No
Assets. partnership/joint venture interests at end of year2015-12-31$0
Assets. partnership/joint venture interests at beginning of year2015-12-31$0
Investment advisory and management fees2015-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2015-12-31$626,817,920
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2015-12-31$581,986,440
Value of interest in pooled separate accounts at end of year2015-12-31$0
Value of interest in pooled separate accounts at beginning of year2015-12-31$0
Interest on participant loans2015-12-31$470,616
Income. Interest from loans (other than to participants)2015-12-31$0
Interest earned on other investments2015-12-31$0
Income. Interest from US Government securities2015-12-31$0
Income. Interest from corporate debt instruments2015-12-31$0
Value of interest in master investment trust accounts at end of year2015-12-31$0
Value of interest in master investment trust accounts at beginning of year2015-12-31$0
Value of interest in common/collective trusts at end of year2015-12-31$199,763,626
Value of interest in common/collective trusts at beginning of year2015-12-31$197,550,785
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2015-12-31$30,070,097
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2015-12-31$29,634,357
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2015-12-31$29,634,357
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2015-12-31$26,602
Assets. Value of investments in 103.12 investment entities at end of year2015-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2015-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2015-12-31$0
Asset value of US Government securities at end of year2015-12-31$0
Asset value of US Government securities at beginning of year2015-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2015-12-31$-37,431,153
Net investment gain/loss from pooled separate accounts2015-12-31$0
Net investment gain or loss from common/collective trusts2015-12-31$9,886,953
Net gain/loss from 103.12 investment entities2015-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2015-12-31No
Was there a failure to transmit to the plan any participant contributions2015-12-31No
Has the plan failed to provide any benefit when due under the plan2015-12-31No
Assets. Invements in employer securities at end of year2015-12-31$0
Assets. Invements in employer securities at beginning of year2015-12-31$0
Assets. Value of employer real property at end of year2015-12-31$0
Assets. Value of employer real property at beginning of year2015-12-31$0
Contributions received in cash from employer2015-12-31$44,543,052
Employer contributions (assets) at end of year2015-12-31$4,666,099
Employer contributions (assets) at beginning of year2015-12-31$4,345,193
Income. Dividends from preferred stock2015-12-31$0
Income. Dividends from common stock2015-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2015-12-31$84,065,392
Asset. Corporate debt instrument preferred debt at end of year2015-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2015-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2015-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2015-12-31$0
Contract administrator fees2015-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32015-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2015-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2015-12-31$0
Liabilities. Value of benefit claims payable at end of year2015-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2015-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2015-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2015-12-31$0
Did the plan have assets held for investment2015-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2015-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2015-12-31No
Aggregate proceeds on sale of assets2015-12-31$0
Aggregate carrying amount (costs) on sale of assets2015-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2015-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2015-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2015-12-31Yes
Opinion of an independent qualified public accountant for this plan2015-12-31Disclaimer
Accountancy firm name2015-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2015-12-31134008324
2014 : BIOGEN 401(K) SAVINGS PLAN 2014 401k financial data
Unrealized appreciation/depreciation of real estate assets2014-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2014-12-31$0
Total unrealized appreciation/depreciation of assets2014-12-31$0
Total transfer of assets to this plan2014-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2014-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2014-12-31$0
Expenses. Interest paid2014-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022014-12-31$0
Total income from all sources (including contributions)2014-12-31$158,197,309
Total loss/gain on sale of assets2014-12-31$0
Total of all expenses incurred2014-12-31$49,870,960
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2014-12-31$49,649,099
Expenses. Certain deemed distributions of participant loans2014-12-31$34,867
Value of total corrective distributions2014-12-31$146,207
Total contributions o plan (from employers,participants, others, non cash contrinutions)2014-12-31$103,829,170
Value of total assets at end of year2014-12-31$823,853,859
Value of total assets at beginning of year2014-12-31$715,527,510
Total of administrative expenses incurred including professional, contract, advisory and management fees2014-12-31$40,787
Total income from rents2014-12-31$0
Total interest from all sources2014-12-31$421,599
Total dividends received (eg from common stock, registered investment company shares)2014-12-31$46,010,779
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2014-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2014-12-31$46,010,779
Assets. Real estate other than employer real property at end of year2014-12-31$0
Assets. Real estate other than employer real property at beginning of year2014-12-31$0
Administrative expenses professional fees incurred2014-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2014-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2014-12-31$0
Was this plan covered by a fidelity bond2014-12-31Yes
Value of fidelity bond cover2014-12-31$10,000,000
If this is an individual account plan, was there a blackout period2014-12-31No
Were there any nonexempt tranactions with any party-in-interest2014-12-31No
Contributions received from participants2014-12-31$52,749,045
Participant contributions at end of year2014-12-31$10,337,084
Participant contributions at beginning of year2014-12-31$8,890,260
Participant contributions at end of year2014-12-31$0
Participant contributions at beginning of year2014-12-31$0
Assets. Other investments not covered elsewhere at end of year2014-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2014-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2014-12-31$12,192,270
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2014-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2014-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2014-12-31$0
Assets. Loans (other than to participants) at end of year2014-12-31$0
Assets. Loans (other than to participants) at beginning of year2014-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2014-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2014-12-31$0
Other income not declared elsewhere2014-12-31$431,155
Administrative expenses (other) incurred2014-12-31$40,787
Liabilities. Value of operating payables at end of year2014-12-31$0
Liabilities. Value of operating payables at beginning of year2014-12-31$0
Total non interest bearing cash at end of year2014-12-31$0
Total non interest bearing cash at beginning of year2014-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2014-12-31No
Income. Non cash contributions2014-12-31$0
Value of net income/loss2014-12-31$108,326,349
Value of net assets at end of year (total assets less liabilities)2014-12-31$823,853,859
Value of net assets at beginning of year (total assets less liabilities)2014-12-31$715,527,510
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2014-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2014-12-31No
Were any leases to which the plan was party in default or uncollectible2014-12-31No
Assets. partnership/joint venture interests at end of year2014-12-31$0
Assets. partnership/joint venture interests at beginning of year2014-12-31$0
Investment advisory and management fees2014-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2014-12-31$581,986,440
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2014-12-31$673,386,814
Value of interest in pooled separate accounts at end of year2014-12-31$0
Value of interest in pooled separate accounts at beginning of year2014-12-31$0
Interest on participant loans2014-12-31$389,006
Income. Interest from loans (other than to participants)2014-12-31$0
Interest earned on other investments2014-12-31$0
Income. Interest from US Government securities2014-12-31$0
Income. Interest from corporate debt instruments2014-12-31$0
Value of interest in master investment trust accounts at end of year2014-12-31$0
Value of interest in master investment trust accounts at beginning of year2014-12-31$0
Value of interest in common/collective trusts at end of year2014-12-31$197,550,785
Value of interest in common/collective trusts at beginning of year2014-12-31$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2014-12-31$29,634,357
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2014-12-31$29,447,954
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2014-12-31$29,447,954
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2014-12-31$32,593
Assets. Value of investments in 103.12 investment entities at end of year2014-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2014-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2014-12-31$0
Asset value of US Government securities at end of year2014-12-31$0
Asset value of US Government securities at beginning of year2014-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2014-12-31$-5,522,280
Net investment gain/loss from pooled separate accounts2014-12-31$0
Net investment gain or loss from common/collective trusts2014-12-31$13,026,886
Net gain/loss from 103.12 investment entities2014-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2014-12-31No
Was there a failure to transmit to the plan any participant contributions2014-12-31No
Has the plan failed to provide any benefit when due under the plan2014-12-31No
Assets. Invements in employer securities at end of year2014-12-31$0
Assets. Invements in employer securities at beginning of year2014-12-31$0
Assets. Value of employer real property at end of year2014-12-31$0
Assets. Value of employer real property at beginning of year2014-12-31$0
Contributions received in cash from employer2014-12-31$38,887,855
Employer contributions (assets) at end of year2014-12-31$4,345,193
Employer contributions (assets) at beginning of year2014-12-31$3,802,482
Income. Dividends from preferred stock2014-12-31$0
Income. Dividends from common stock2014-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2014-12-31$49,649,099
Asset. Corporate debt instrument preferred debt at end of year2014-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2014-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2014-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2014-12-31$0
Contract administrator fees2014-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32014-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2014-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2014-12-31$0
Liabilities. Value of benefit claims payable at end of year2014-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2014-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2014-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2014-12-31$0
Did the plan have assets held for investment2014-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2014-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2014-12-31No
Aggregate proceeds on sale of assets2014-12-31$0
Aggregate carrying amount (costs) on sale of assets2014-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2014-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2014-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2014-12-31Yes
Opinion of an independent qualified public accountant for this plan2014-12-31Disclaimer
Accountancy firm name2014-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2014-12-31134008324
2013 : BIOGEN 401(K) SAVINGS PLAN 2013 401k financial data
Unrealized appreciation/depreciation of real estate assets2013-12-31$0
Unrealized appreciation/depreciation of other (non real estate) assets2013-12-31$0
Total unrealized appreciation/depreciation of assets2013-12-31$0
Total transfer of assets to this plan2013-12-31$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2013-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2013-12-31$0
Expenses. Interest paid2013-12-31$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-1022013-12-31$0
Total income from all sources (including contributions)2013-12-31$224,771,161
Total loss/gain on sale of assets2013-12-31$0
Total of all expenses incurred2013-12-31$38,988,977
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2013-12-31$39,104,893
Expenses. Certain deemed distributions of participant loans2013-12-31$1,469
Value of total corrective distributions2013-12-31$109,714
Total contributions o plan (from employers,participants, others, non cash contrinutions)2013-12-31$91,275,926
Value of total assets at end of year2013-12-31$715,527,510
Value of total assets at beginning of year2013-12-31$529,745,326
Total of administrative expenses incurred including professional, contract, advisory and management fees2013-12-31$-227,099
Total income from rents2013-12-31$0
Total interest from all sources2013-12-31$367,952
Total dividends received (eg from common stock, registered investment company shares)2013-12-31$33,039,361
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2013-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2013-12-31$33,039,361
Assets. Real estate other than employer real property at end of year2013-12-31$0
Assets. Real estate other than employer real property at beginning of year2013-12-31$0
Administrative expenses professional fees incurred2013-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at end of year2013-12-31$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year2013-12-31$0
Was this plan covered by a fidelity bond2013-12-31Yes
Value of fidelity bond cover2013-12-31$10,000,000
If this is an individual account plan, was there a blackout period2013-12-31No
Were there any nonexempt tranactions with any party-in-interest2013-12-31No
Contributions received from participants2013-12-31$45,953,069
Participant contributions at end of year2013-12-31$8,890,260
Participant contributions at beginning of year2013-12-31$7,784,009
Participant contributions at end of year2013-12-31$0
Participant contributions at beginning of year2013-12-31$0
Assets. Other investments not covered elsewhere at end of year2013-12-31$0
Assets. Other investments not covered elsewhere at beginning of year2013-12-31$0
Income. Received or receivable in cash from other sources (including rollovers)2013-12-31$10,570,775
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)2013-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at end of year2013-12-31$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year2013-12-31$0
Assets. Loans (other than to participants) at end of year2013-12-31$0
Assets. Loans (other than to participants) at beginning of year2013-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year2013-12-31$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year2013-12-31$0
Other income not declared elsewhere2013-12-31$6,607
Administrative expenses (other) incurred2013-12-31$-227,099
Liabilities. Value of operating payables at end of year2013-12-31$0
Liabilities. Value of operating payables at beginning of year2013-12-31$0
Total non interest bearing cash at end of year2013-12-31$0
Total non interest bearing cash at beginning of year2013-12-31$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2013-12-31No
Income. Non cash contributions2013-12-31$0
Value of net income/loss2013-12-31$185,782,184
Value of net assets at end of year (total assets less liabilities)2013-12-31$715,527,510
Value of net assets at beginning of year (total assets less liabilities)2013-12-31$529,745,326
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2013-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2013-12-31No
Were any leases to which the plan was party in default or uncollectible2013-12-31No
Assets. partnership/joint venture interests at end of year2013-12-31$0
Assets. partnership/joint venture interests at beginning of year2013-12-31$0
Investment advisory and management fees2013-12-31$0
Value of interest in registered invesment companies (eg mutual funds) at end of year2013-12-31$673,386,814
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2013-12-31$493,262,027
Value of interest in pooled separate accounts at end of year2013-12-31$0
Value of interest in pooled separate accounts at beginning of year2013-12-31$0
Interest on participant loans2013-12-31$349,753
Income. Interest from loans (other than to participants)2013-12-31$0
Interest earned on other investments2013-12-31$0
Income. Interest from US Government securities2013-12-31$0
Income. Interest from corporate debt instruments2013-12-31$0
Value of interest in master investment trust accounts at end of year2013-12-31$0
Value of interest in master investment trust accounts at beginning of year2013-12-31$0
Value of interest in common/collective trusts at end of year2013-12-31$0
Value of interest in common/collective trusts at beginning of year2013-12-31$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2013-12-31$29,447,954
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2013-12-31$26,159,195
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2013-12-31$26,159,195
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2013-12-31$18,199
Assets. Value of investments in 103.12 investment entities at end of year2013-12-31$0
Assets. Value of investments in 103.12 investment entities at beginning of year2013-12-31$0
Expenses. Payments to insurance carriers foe the provision of benefits2013-12-31$0
Asset value of US Government securities at end of year2013-12-31$0
Asset value of US Government securities at beginning of year2013-12-31$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)2013-12-31$100,081,315
Net investment gain/loss from pooled separate accounts2013-12-31$0
Net investment gain or loss from common/collective trusts2013-12-31$0
Net gain/loss from 103.12 investment entities2013-12-31$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2013-12-31No
Was there a failure to transmit to the plan any participant contributions2013-12-31No
Has the plan failed to provide any benefit when due under the plan2013-12-31No
Assets. Invements in employer securities at end of year2013-12-31$0
Assets. Invements in employer securities at beginning of year2013-12-31$0
Assets. Value of employer real property at end of year2013-12-31$0
Assets. Value of employer real property at beginning of year2013-12-31$0
Contributions received in cash from employer2013-12-31$34,752,082
Employer contributions (assets) at end of year2013-12-31$3,802,482
Employer contributions (assets) at beginning of year2013-12-31$2,540,095
Income. Dividends from preferred stock2013-12-31$0
Income. Dividends from common stock2013-12-31$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2013-12-31$39,104,893
Asset. Corporate debt instrument preferred debt at end of year2013-12-31$0
Asset. Corporate debt instrument preferred debt at beginning of year2013-12-31$0
Asset. Corporate debt instrument debt (other) at end of year2013-12-31$0
Asset. Corporate debt instrument debt (other) at beginning of year2013-12-31$0
Contract administrator fees2013-12-31$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32013-12-31No
Assets. Corporate common stocks other than exployer securities at end of year2013-12-31$0
Assets. Corporate common stocks other than exployer securities at beginning of year2013-12-31$0
Liabilities. Value of benefit claims payable at end of year2013-12-31$0
Liabilities. Value of benefit claims payable at beginning of year2013-12-31$0
Assets. Value of buildings and other operty used in plan operation at end of year2013-12-31$0
Assets. Value of buildings and other operty used in plan operation at beginning of year2013-12-31$0
Did the plan have assets held for investment2013-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2013-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2013-12-31No
Aggregate proceeds on sale of assets2013-12-31$0
Aggregate carrying amount (costs) on sale of assets2013-12-31$0
Liabilities. Value of acquisition indebtedness at end of year2013-12-31$0
Liabilities. Value of acquisition indebtedness at beginning of year2013-12-31$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2013-12-31Yes
Opinion of an independent qualified public accountant for this plan2013-12-31Disclaimer
Accountancy firm name2013-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2013-12-31134008324
2012 : BIOGEN 401(K) SAVINGS PLAN 2012 401k financial data
Total transfer of assets to this plan2012-12-31$562,705
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2012-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2012-12-31$0
Total income from all sources (including contributions)2012-12-31$135,386,428
Total of all expenses incurred2012-12-31$46,033,526
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2012-12-31$46,146,011
Expenses. Certain deemed distributions of participant loans2012-12-31$11,956
Value of total corrective distributions2012-12-31$53,853
Total contributions o plan (from employers,participants, others, non cash contrinutions)2012-12-31$75,827,006
Value of total assets at end of year2012-12-31$529,745,326
Value of total assets at beginning of year2012-12-31$439,829,719
Total of administrative expenses incurred including professional, contract, advisory and management fees2012-12-31$-178,294
Total interest from all sources2012-12-31$339,989
Total dividends received (eg from common stock, registered investment company shares)2012-12-31$18,503,121
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2012-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2012-12-31$18,503,121
Was this plan covered by a fidelity bond2012-12-31Yes
Value of fidelity bond cover2012-12-31$10,000,000
If this is an individual account plan, was there a blackout period2012-12-31No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities2012-12-31$0
Were there any nonexempt tranactions with any party-in-interest2012-12-31No
Contributions received from participants2012-12-31$37,830,177
Participant contributions at end of year2012-12-31$7,784,009
Participant contributions at beginning of year2012-12-31$6,701,147
Income. Received or receivable in cash from other sources (including rollovers)2012-12-31$10,182,611
Other income not declared elsewhere2012-12-31$15,674
Administrative expenses (other) incurred2012-12-31$-178,294
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2012-12-31No
Value of net income/loss2012-12-31$89,352,902
Value of net assets at end of year (total assets less liabilities)2012-12-31$529,745,326
Value of net assets at beginning of year (total assets less liabilities)2012-12-31$439,829,719
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2012-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2012-12-31No
Were any leases to which the plan was party in default or uncollectible2012-12-31No
Value of interest in registered invesment companies (eg mutual funds) at end of year2012-12-31$493,262,027
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2012-12-31$403,095,401
Interest on participant loans2012-12-31$311,665
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2012-12-31$26,159,195
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2012-12-31$27,586,920
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2012-12-31$27,586,920
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2012-12-31$28,324
Net investment gain/loss from registered investment companies (e.g. mutual funds)2012-12-31$40,700,638
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2012-12-31No
Was there a failure to transmit to the plan any participant contributions2012-12-31No
Has the plan failed to provide any benefit when due under the plan2012-12-31No
Contributions received in cash from employer2012-12-31$27,814,218
Employer contributions (assets) at end of year2012-12-31$2,540,095
Employer contributions (assets) at beginning of year2012-12-31$2,446,251
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2012-12-31$46,146,011
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32012-12-31No
Did the plan have assets held for investment2012-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2012-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2012-12-31No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2012-12-31Yes
Opinion of an independent qualified public accountant for this plan2012-12-31Disclaimer
Accountancy firm name2012-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2012-12-31134008324
2011 : BIOGEN 401(K) SAVINGS PLAN 2011 401k financial data
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2011-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2011-12-31$0
Total income from all sources (including contributions)2011-12-31$56,432,125
Total of all expenses incurred2011-12-31$68,170,110
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2011-12-31$68,126,551
Expenses. Certain deemed distributions of participant loans2011-12-31$1,962
Value of total corrective distributions2011-12-31$30,130
Total contributions o plan (from employers,participants, others, non cash contrinutions)2011-12-31$61,731,079
Value of total assets at end of year2011-12-31$439,829,719
Value of total assets at beginning of year2011-12-31$451,567,704
Total of administrative expenses incurred including professional, contract, advisory and management fees2011-12-31$11,467
Total interest from all sources2011-12-31$290,723
Total dividends received (eg from common stock, registered investment company shares)2011-12-31$16,115,602
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2011-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2011-12-31$16,115,602
Was this plan covered by a fidelity bond2011-12-31Yes
Value of fidelity bond cover2011-12-31$10,000,000
If this is an individual account plan, was there a blackout period2011-12-31No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities2011-12-31$0
Were there any nonexempt tranactions with any party-in-interest2011-12-31No
Contributions received from participants2011-12-31$32,905,663
Participant contributions at end of year2011-12-31$6,701,147
Participant contributions at beginning of year2011-12-31$6,100,189
Income. Received or receivable in cash from other sources (including rollovers)2011-12-31$4,876,762
Administrative expenses (other) incurred2011-12-31$11,467
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2011-12-31No
Value of net income/loss2011-12-31$-11,737,985
Value of net assets at end of year (total assets less liabilities)2011-12-31$439,829,719
Value of net assets at beginning of year (total assets less liabilities)2011-12-31$451,567,704
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2011-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2011-12-31No
Were any leases to which the plan was party in default or uncollectible2011-12-31No
Value of interest in registered invesment companies (eg mutual funds) at end of year2011-12-31$403,095,401
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2011-12-31$416,397,827
Interest on participant loans2011-12-31$272,736
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2011-12-31$27,586,920
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2011-12-31$26,549,269
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2011-12-31$26,549,269
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2011-12-31$17,987
Net investment gain/loss from registered investment companies (e.g. mutual funds)2011-12-31$-21,705,279
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2011-12-31No
Was there a failure to transmit to the plan any participant contributions2011-12-31No
Has the plan failed to provide any benefit when due under the plan2011-12-31No
Contributions received in cash from employer2011-12-31$23,948,654
Employer contributions (assets) at end of year2011-12-31$2,446,251
Employer contributions (assets) at beginning of year2011-12-31$2,520,419
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2011-12-31$68,126,551
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32011-12-31No
Did the plan have assets held for investment2011-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2011-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2011-12-31No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2011-12-31Yes
Opinion of an independent qualified public accountant for this plan2011-12-31Disclaimer
Accountancy firm name2011-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2011-12-31134008324
2010 : BIOGEN 401(K) SAVINGS PLAN 2010 401k financial data
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2010-12-31$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)2010-12-31$0
Total income from all sources (including contributions)2010-12-31$119,668,708
Total of all expenses incurred2010-12-31$23,171,026
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others2010-12-31$23,031,685
Expenses. Certain deemed distributions of participant loans2010-12-31$7,123
Value of total corrective distributions2010-12-31$116,731
Total contributions o plan (from employers,participants, others, non cash contrinutions)2010-12-31$63,533,917
Value of total assets at end of year2010-12-31$451,567,704
Value of total assets at beginning of year2010-12-31$355,070,022
Total of administrative expenses incurred including professional, contract, advisory and management fees2010-12-31$15,487
Total interest from all sources2010-12-31$284,891
Total dividends received (eg from common stock, registered investment company shares)2010-12-31$8,235,210
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year2010-12-31No
Total dividends received from registered investment company shares (eg mutual funds)2010-12-31$8,235,210
Was this plan covered by a fidelity bond2010-12-31Yes
Value of fidelity bond cover2010-12-31$10,000,000
If this is an individual account plan, was there a blackout period2010-12-31No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities2010-12-31$0
Were there any nonexempt tranactions with any party-in-interest2010-12-31No
Contributions received from participants2010-12-31$34,707,021
Participant contributions at end of year2010-12-31$6,100,189
Participant contributions at beginning of year2010-12-31$5,265,588
Income. Received or receivable in cash from other sources (including rollovers)2010-12-31$3,690,479
Administrative expenses (other) incurred2010-12-31$15,487
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser2010-12-31No
Value of net income/loss2010-12-31$96,497,682
Value of net assets at end of year (total assets less liabilities)2010-12-31$451,567,704
Value of net assets at beginning of year (total assets less liabilities)2010-12-31$355,070,022
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)2010-12-31No
Were any loans by the plan or fixed income obligations due to the plan in default2010-12-31No
Were any leases to which the plan was party in default or uncollectible2010-12-31No
Value of interest in registered invesment companies (eg mutual funds) at end of year2010-12-31$416,397,827
Value of interest in registered invesment companies (eg mutual funds) at beginning of year2010-12-31$320,473,020
Interest on participant loans2010-12-31$284,695
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year2010-12-31$26,549,269
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year2010-12-31$27,063,191
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year2010-12-31$27,063,191
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)2010-12-31$196
Net investment gain/loss from registered investment companies (e.g. mutual funds)2010-12-31$47,614,690
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets2010-12-31No
Was there a failure to transmit to the plan any participant contributions2010-12-31No
Has the plan failed to provide any benefit when due under the plan2010-12-31No
Contributions received in cash from employer2010-12-31$25,136,417
Employer contributions (assets) at end of year2010-12-31$2,520,419
Employer contributions (assets) at beginning of year2010-12-31$2,268,223
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers2010-12-31$23,031,685
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-32010-12-31No
Did the plan have assets held for investment2010-12-31Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser2010-12-31No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC2010-12-31No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)2010-12-31Yes
Opinion of an independent qualified public accountant for this plan2010-12-31Qualified
Accountancy firm name2010-12-31PRICEWATERHOUSECOOPERS
Accountancy firm EIN2010-12-31134008324
2009 : BIOGEN 401(K) SAVINGS PLAN 2009 401k financial data
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities2009-12-31$0

Form 5500 Responses for BIOGEN 401(K) SAVINGS PLAN

2022: BIOGEN 401(K) SAVINGS PLAN 2022 form 5500 responses
2022-01-01Type of plan entitySingle employer plan
2022-01-01This submission is the final filingNo
2022-01-01Plan is a collectively bargained planNo
2022-01-01Plan funding arrangement – TrustYes
2022-01-01Plan benefit arrangement - TrustYes
2021: BIOGEN 401(K) SAVINGS PLAN 2021 form 5500 responses
2021-01-01Type of plan entitySingle employer plan
2021-01-01This submission is the final filingNo
2021-01-01Plan is a collectively bargained planNo
2021-01-01Plan funding arrangement – TrustYes
2021-01-01Plan benefit arrangement - TrustYes
2020: BIOGEN 401(K) SAVINGS PLAN 2020 form 5500 responses
2020-01-01Type of plan entitySingle employer plan
2020-01-01Submission has been amendedNo
2020-01-01This submission is the final filingNo
2020-01-01This return/report is a short plan year return/report (less than 12 months)No
2020-01-01Plan is a collectively bargained planNo
2020-01-01Plan funding arrangement – TrustYes
2020-01-01Plan benefit arrangement - TrustYes
2019: BIOGEN 401(K) SAVINGS PLAN 2019 form 5500 responses
2019-01-01Type of plan entitySingle employer plan
2019-01-01Submission has been amendedNo
2019-01-01This submission is the final filingNo
2019-01-01This return/report is a short plan year return/report (less than 12 months)No
2019-01-01Plan is a collectively bargained planNo
2019-01-01Plan funding arrangement – TrustYes
2019-01-01Plan benefit arrangement - TrustYes
2018: BIOGEN 401(K) SAVINGS PLAN 2018 form 5500 responses
2018-01-01Type of plan entitySingle employer plan
2018-01-01Submission has been amendedNo
2018-01-01This submission is the final filingNo
2018-01-01This return/report is a short plan year return/report (less than 12 months)No
2018-01-01Plan is a collectively bargained planNo
2018-01-01Plan funding arrangement – TrustYes
2018-01-01Plan benefit arrangement - TrustYes
2017: BIOGEN 401(K) SAVINGS PLAN 2017 form 5500 responses
2017-01-01Type of plan entitySingle employer plan
2017-01-01Submission has been amendedNo
2017-01-01This submission is the final filingNo
2017-01-01This return/report is a short plan year return/report (less than 12 months)No
2017-01-01Plan is a collectively bargained planNo
2017-01-01Plan funding arrangement – TrustYes
2017-01-01Plan benefit arrangement - TrustYes
2016: BIOGEN 401(K) SAVINGS PLAN 2016 form 5500 responses
2016-01-01Type of plan entitySingle employer plan
2016-01-01Submission has been amendedNo
2016-01-01This submission is the final filingNo
2016-01-01This return/report is a short plan year return/report (less than 12 months)No
2016-01-01Plan is a collectively bargained planNo
2016-01-01Plan funding arrangement – TrustYes
2016-01-01Plan benefit arrangement - TrustYes
2015: BIOGEN 401(K) SAVINGS PLAN 2015 form 5500 responses
2015-01-01Type of plan entitySingle employer plan
2015-01-01Submission has been amendedNo
2015-01-01This submission is the final filingNo
2015-01-01This return/report is a short plan year return/report (less than 12 months)No
2015-01-01Plan is a collectively bargained planNo
2015-01-01Plan funding arrangement – TrustYes
2015-01-01Plan benefit arrangement - TrustYes
2014: BIOGEN 401(K) SAVINGS PLAN 2014 form 5500 responses
2014-01-01Type of plan entitySingle employer plan
2014-01-01Submission has been amendedNo
2014-01-01This submission is the final filingNo
2014-01-01This return/report is a short plan year return/report (less than 12 months)No
2014-01-01Plan is a collectively bargained planNo
2014-01-01Plan funding arrangement – TrustYes
2014-01-01Plan benefit arrangement - TrustYes
2013: BIOGEN 401(K) SAVINGS PLAN 2013 form 5500 responses
2013-01-01Type of plan entitySingle employer plan
2013-01-01Submission has been amendedNo
2013-01-01This submission is the final filingNo
2013-01-01This return/report is a short plan year return/report (less than 12 months)No
2013-01-01Plan is a collectively bargained planNo
2013-01-01Plan funding arrangement – TrustYes
2013-01-01Plan benefit arrangement - TrustYes
2012: BIOGEN 401(K) SAVINGS PLAN 2012 form 5500 responses
2012-01-01Type of plan entitySingle employer plan
2012-01-01Submission has been amendedNo
2012-01-01This submission is the final filingNo
2012-01-01This return/report is a short plan year return/report (less than 12 months)No
2012-01-01Plan funding arrangement – TrustYes
2012-01-01Plan benefit arrangement - TrustYes
2011: BIOGEN 401(K) SAVINGS PLAN 2011 form 5500 responses
2011-01-01Type of plan entitySingle employer plan
2011-01-01Submission has been amendedNo
2011-01-01This submission is the final filingNo
2011-01-01This return/report is a short plan year return/report (less than 12 months)No
2011-01-01Plan funding arrangement – TrustYes
2011-01-01Plan benefit arrangement - TrustYes
2010: BIOGEN 401(K) SAVINGS PLAN 2010 form 5500 responses
2010-01-01Type of plan entitySingle employer plan
2010-01-01Submission has been amendedYes
2010-01-01This submission is the final filingNo
2010-01-01This return/report is a short plan year return/report (less than 12 months)No
2010-01-01Plan funding arrangement – TrustYes
2010-01-01Plan benefit arrangement - TrustYes
2009: BIOGEN 401(K) SAVINGS PLAN 2009 form 5500 responses
2009-01-01Type of plan entitySingle employer plan
2009-01-01Submission has been amendedNo
2009-01-01This submission is the final filingNo
2009-01-01This return/report is a short plan year return/report (less than 12 months)No
2009-01-01Plan funding arrangement – TrustYes
2009-01-01Plan benefit arrangement - TrustYes

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