401k Plan data: ALEXION PHARMACEUTICALS INC 401K PLAN plan

ALEXION PHARMACEUTICALS INC 401K PLAN 401k Plan overview

Plan Name	ALEXION PHARMACEUTICALS INC 401K PLAN
Plan identification number	001

ALEXION PHARMACEUTICALS INC 401K PLAN Benefits

401k Plan Type

Defined 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.
Plan provides for automatic enrollment in plan that has employee contributions deducted from payroll.
Total or partial participant-directed account plan - plan uses default investment account for participants who fail to direct assets in their account.
Master plan - A pension plan that is made available by a sponsor for adoption by employers; that is the subject of a favorable opinion letter; and for which a single funding medium (for example, a trust or custodial account) is established for the joint use of all adopting employers.
Plan sponsor(s) received services of leased employees, as defined in Code section 414(n), during the plan year.
Plan sponsor(s) is (are) a member(s) of a controlled group (Code sections 414(b), (c), or (m)).

401k Sponsoring company profile

ALEXION PHARMACEUTICALS, INC. has sponsored the creation of one or more 401k plans.

Company Name: ALEXION PHARMACEUTICALS, INC.

Employer identification number (EIN): 133648318

NAIC Classification: 541700

Additional information about ALEXION PHARMACEUTICALS, INC.

Jurisdiction of Incorporation: Texas Secretary of State

Incorporation Date: 2022-11-17

Company Identification Number: 0804821643

Legal Registered Office Address: 100 COLLEGE ST

NEW HAVEN
United States of America (USA)
06510

More information about ALEXION PHARMACEUTICALS, INC.

Form 5500 Filing Information

Submission information for form 5500 for 401k plan ALEXION PHARMACEUTICALS INC 401K PLAN

Plan id# Filing Submission Date Name of Administrator Date Administrator Signed Name of Company Sponsor Date Sponsor Signed
001 2020-01-01
001 2019-01-01
001 2018-01-01
001 2017-01-01 SNEHA PATEL
001 2016-01-01 KATIE ARCHER
001 2015-01-01 KATIE ARCHER
001 2014-01-01 KATIE ARCHER
001 2013-01-01 KATIE ARCHER
001 2012-01-01 KEN COMAN
001 2011-01-01 KEN COMAN
001 2009-01-01 ANTHONY LANCIA

Plan Statistics for ALEXION PHARMACEUTICALS INC 401K PLAN

401k plan membership statisitcs for ALEXION PHARMACEUTICALS INC 401K PLAN

Measure Date Value
2020: ALEXION PHARMACEUTICALS INC 401K PLAN 2020 401k membership
Total participants, beginning-of-year 2020-01-01 2,520
Total number of active participants reported on line 7a of the Form 5500 2020-01-01 2,111
Number of retired or separated participants receiving benefits 2020-01-01 0
Number of other retired or separated participants entitled to future benefits 2020-01-01 775
Total of all active and inactive participants 2020-01-01 2,886
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2020-01-01 1
Total participants 2020-01-01 2,887
Number of participants with account balances 2020-01-01 2,805
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2020-01-01 0
2019: ALEXION PHARMACEUTICALS INC 401K PLAN 2019 401k membership
Total participants, beginning-of-year 2019-01-01 2,246
Total number of active participants reported on line 7a of the Form 5500 2019-01-01 1,765
Number of retired or separated participants receiving benefits 2019-01-01 2
Number of other retired or separated participants entitled to future benefits 2019-01-01 752
Total of all active and inactive participants 2019-01-01 2,519
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2019-01-01 1
Total participants 2019-01-01 2,520
Number of participants with account balances 2019-01-01 2,448
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2019-01-01 0
2018: ALEXION PHARMACEUTICALS INC 401K PLAN 2018 401k membership
Total participants, beginning-of-year 2018-01-01 1,809
Total number of active participants reported on line 7a of the Form 5500 2018-01-01 1,514
Number of retired or separated participants receiving benefits 2018-01-01 1
Number of other retired or separated participants entitled to future benefits 2018-01-01 729
Total of all active and inactive participants 2018-01-01 2,244
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2018-01-01 2
Total participants 2018-01-01 2,246
Number of participants with account balances 2018-01-01 2,107
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2018-01-01 0
2017: ALEXION PHARMACEUTICALS INC 401K PLAN 2017 401k membership
Total participants, beginning-of-year 2017-01-01 2,107
Total number of active participants reported on line 7a of the Form 5500 2017-01-01 1,161
Number of retired or separated participants receiving benefits 2017-01-01 1
Number of other retired or separated participants entitled to future benefits 2017-01-01 646
Total of all active and inactive participants 2017-01-01 1,808
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2017-01-01 1
Total participants 2017-01-01 1,809
Number of participants with account balances 2017-01-01 1,768
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2017-01-01 0
2016: ALEXION PHARMACEUTICALS INC 401K PLAN 2016 401k membership
Total participants, beginning-of-year 2016-01-01 1,974
Total number of active participants reported on line 7a of the Form 5500 2016-01-01 1,750
Number of retired or separated participants receiving benefits 2016-01-01 0
Number of other retired or separated participants entitled to future benefits 2016-01-01 354
Total of all active and inactive participants 2016-01-01 2,104
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2016-01-01 3
Total participants 2016-01-01 2,107
Number of participants with account balances 2016-01-01 1,990
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2016-01-01 0
2015: ALEXION PHARMACEUTICALS INC 401K PLAN 2015 401k membership
Total participants, beginning-of-year 2015-01-01 1,540
Total number of active participants reported on line 7a of the Form 5500 2015-01-01 1,642
Number of retired or separated participants receiving benefits 2015-01-01 0
Number of other retired or separated participants entitled to future benefits 2015-01-01 332
Total of all active and inactive participants 2015-01-01 1,974
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2015-01-01 0
Total participants 2015-01-01 1,974
Number of participants with account balances 2015-01-01 1,831
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2015-01-01 0
2014: ALEXION PHARMACEUTICALS INC 401K PLAN 2014 401k membership
Total participants, beginning-of-year 2014-01-01 1,031
Total number of active participants reported on line 7a of the Form 5500 2014-01-01 1,269
Number of retired or separated participants receiving benefits 2014-01-01 0
Number of other retired or separated participants entitled to future benefits 2014-01-01 271
Total of all active and inactive participants 2014-01-01 1,540
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2014-01-01 0
Total participants 2014-01-01 1,540
Number of participants with account balances 2014-01-01 1,319
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2014-01-01 0
2013: ALEXION PHARMACEUTICALS INC 401K PLAN 2013 401k membership
Total participants, beginning-of-year 2013-01-01 825
Total number of active participants reported on line 7a of the Form 5500 2013-01-01 1,031
Number of retired or separated participants receiving benefits 2013-01-01 0
Number of other retired or separated participants entitled to future benefits 2013-01-01 0
Total of all active and inactive participants 2013-01-01 1,031
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2013-01-01 0
Total participants 2013-01-01 1,031
Number of participants with account balances 2013-01-01 0
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2013-01-01 0
2012: ALEXION PHARMACEUTICALS INC 401K PLAN 2012 401k membership
Total participants, beginning-of-year 2012-01-01 672
Total number of active participants reported on line 7a of the Form 5500 2012-01-01 724
Number of retired or separated participants receiving benefits 2012-01-01 0
Number of other retired or separated participants entitled to future benefits 2012-01-01 101
Total of all active and inactive participants 2012-01-01 825
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2012-01-01 0
Total participants 2012-01-01 825
Number of participants with account balances 2012-01-01 793
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2012-01-01 0
2011: ALEXION PHARMACEUTICALS INC 401K PLAN 2011 401k membership
Total participants, beginning-of-year 2011-01-01 590
Total number of active participants reported on line 7a of the Form 5500 2011-01-01 583
Number of retired or separated participants receiving benefits 2011-01-01 0
Number of other retired or separated participants entitled to future benefits 2011-01-01 89
Total of all active and inactive participants 2011-01-01 672
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2011-01-01 0
Total participants 2011-01-01 672
Number of participants with account balances 2011-01-01 633
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2011-01-01 0
2009: ALEXION PHARMACEUTICALS INC 401K PLAN 2009 401k membership
Total participants, beginning-of-year 2009-01-01 510
Total number of active participants reported on line 7a of the Form 5500 2009-01-01 474
Number of retired or separated participants receiving benefits 2009-01-01 0
Number of other retired or separated participants entitled to future benefits 2009-01-01 92
Total of all active and inactive participants 2009-01-01 566
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2009-01-01 0
Total participants 2009-01-01 566
Number of participants with account balances 2009-01-01 495
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2009-01-01 0

Measure	Date	Value
2020: ALEXION PHARMACEUTICALS INC 401K PLAN 2020 401k membership
Total participants, beginning-of-year	2020-01-01	2,520
Total number of active participants reported on line 7a of the Form 5500	2020-01-01	2,111
Number of retired or separated participants receiving benefits	2020-01-01	0
Number of other retired or separated participants entitled to future benefits	2020-01-01	775
Total of all active and inactive participants	2020-01-01	2,886
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2020-01-01	1
Total participants	2020-01-01	2,887
Number of participants with account balances	2020-01-01	2,805
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2020-01-01	0
2019: ALEXION PHARMACEUTICALS INC 401K PLAN 2019 401k membership
Total participants, beginning-of-year	2019-01-01	2,246
Total number of active participants reported on line 7a of the Form 5500	2019-01-01	1,765
Number of retired or separated participants receiving benefits	2019-01-01	2
Number of other retired or separated participants entitled to future benefits	2019-01-01	752
Total of all active and inactive participants	2019-01-01	2,519
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2019-01-01	1
Total participants	2019-01-01	2,520
Number of participants with account balances	2019-01-01	2,448
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2019-01-01	0
2018: ALEXION PHARMACEUTICALS INC 401K PLAN 2018 401k membership
Total participants, beginning-of-year	2018-01-01	1,809
Total number of active participants reported on line 7a of the Form 5500	2018-01-01	1,514
Number of retired or separated participants receiving benefits	2018-01-01	1
Number of other retired or separated participants entitled to future benefits	2018-01-01	729
Total of all active and inactive participants	2018-01-01	2,244
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2018-01-01	2
Total participants	2018-01-01	2,246
Number of participants with account balances	2018-01-01	2,107
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2018-01-01	0
2017: ALEXION PHARMACEUTICALS INC 401K PLAN 2017 401k membership
Total participants, beginning-of-year	2017-01-01	2,107
Total number of active participants reported on line 7a of the Form 5500	2017-01-01	1,161
Number of retired or separated participants receiving benefits	2017-01-01	1
Number of other retired or separated participants entitled to future benefits	2017-01-01	646
Total of all active and inactive participants	2017-01-01	1,808
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2017-01-01	1
Total participants	2017-01-01	1,809
Number of participants with account balances	2017-01-01	1,768
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2017-01-01	0
2016: ALEXION PHARMACEUTICALS INC 401K PLAN 2016 401k membership
Total participants, beginning-of-year	2016-01-01	1,974
Total number of active participants reported on line 7a of the Form 5500	2016-01-01	1,750
Number of retired or separated participants receiving benefits	2016-01-01	0
Number of other retired or separated participants entitled to future benefits	2016-01-01	354
Total of all active and inactive participants	2016-01-01	2,104
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2016-01-01	3
Total participants	2016-01-01	2,107
Number of participants with account balances	2016-01-01	1,990
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2016-01-01	0
2015: ALEXION PHARMACEUTICALS INC 401K PLAN 2015 401k membership
Total participants, beginning-of-year	2015-01-01	1,540
Total number of active participants reported on line 7a of the Form 5500	2015-01-01	1,642
Number of retired or separated participants receiving benefits	2015-01-01	0
Number of other retired or separated participants entitled to future benefits	2015-01-01	332
Total of all active and inactive participants	2015-01-01	1,974
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2015-01-01	0
Total participants	2015-01-01	1,974
Number of participants with account balances	2015-01-01	1,831
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2015-01-01	0
2014: ALEXION PHARMACEUTICALS INC 401K PLAN 2014 401k membership
Total participants, beginning-of-year	2014-01-01	1,031
Total number of active participants reported on line 7a of the Form 5500	2014-01-01	1,269
Number of retired or separated participants receiving benefits	2014-01-01	0
Number of other retired or separated participants entitled to future benefits	2014-01-01	271
Total of all active and inactive participants	2014-01-01	1,540
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2014-01-01	0
Total participants	2014-01-01	1,540
Number of participants with account balances	2014-01-01	1,319
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2014-01-01	0
2013: ALEXION PHARMACEUTICALS INC 401K PLAN 2013 401k membership
Total participants, beginning-of-year	2013-01-01	825
Total number of active participants reported on line 7a of the Form 5500	2013-01-01	1,031
Number of retired or separated participants receiving benefits	2013-01-01	0
Number of other retired or separated participants entitled to future benefits	2013-01-01	0
Total of all active and inactive participants	2013-01-01	1,031
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2013-01-01	0
Total participants	2013-01-01	1,031
Number of participants with account balances	2013-01-01	0
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2013-01-01	0
2012: ALEXION PHARMACEUTICALS INC 401K PLAN 2012 401k membership
Total participants, beginning-of-year	2012-01-01	672
Total number of active participants reported on line 7a of the Form 5500	2012-01-01	724
Number of retired or separated participants receiving benefits	2012-01-01	0
Number of other retired or separated participants entitled to future benefits	2012-01-01	101
Total of all active and inactive participants	2012-01-01	825
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2012-01-01	0
Total participants	2012-01-01	825
Number of participants with account balances	2012-01-01	793
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2012-01-01	0
2011: ALEXION PHARMACEUTICALS INC 401K PLAN 2011 401k membership
Total participants, beginning-of-year	2011-01-01	590
Total number of active participants reported on line 7a of the Form 5500	2011-01-01	583
Number of retired or separated participants receiving benefits	2011-01-01	0
Number of other retired or separated participants entitled to future benefits	2011-01-01	89
Total of all active and inactive participants	2011-01-01	672
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2011-01-01	0
Total participants	2011-01-01	672
Number of participants with account balances	2011-01-01	633
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2011-01-01	0
2009: ALEXION PHARMACEUTICALS INC 401K PLAN 2009 401k membership
Total participants, beginning-of-year	2009-01-01	510
Total number of active participants reported on line 7a of the Form 5500	2009-01-01	474
Number of retired or separated participants receiving benefits	2009-01-01	0
Number of other retired or separated participants entitled to future benefits	2009-01-01	92
Total of all active and inactive participants	2009-01-01	566
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2009-01-01	0
Total participants	2009-01-01	566
Number of participants with account balances	2009-01-01	495
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2009-01-01	0

Financial Data on ALEXION PHARMACEUTICALS INC 401K PLAN

Measure	Date	Value
2020 : ALEXION PHARMACEUTICALS INC 401K PLAN 2020 401k financial data
Unrealized appreciation/depreciation of real estate assets	2020-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2020-12-31	$0
Total unrealized appreciation/depreciation of assets	2020-12-31	$0
Total transfer of assets to this plan	2020-12-31	$0
Total transfer of assets from this plan	2020-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$49,309
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$1,752
Expenses. Interest paid	2020-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2020-12-31	$0
Total income from all sources (including contributions)	2020-12-31	$132,741,800
Total loss/gain on sale of assets	2020-12-31	$0
Total of all expenses incurred	2020-12-31	$34,875,340
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2020-12-31	$34,225,297
Expenses. Certain deemed distributions of participant loans	2020-12-31	$0
Value of total corrective distributions	2020-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2020-12-31	$80,365,628
Value of total assets at end of year	2020-12-31	$397,860,247
Value of total assets at beginning of year	2020-12-31	$299,946,230
Total of administrative expenses incurred including professional, contract, advisory and management fees	2020-12-31	$650,043
Total income from rents	2020-12-31	$0
Total interest from all sources	2020-12-31	$172,889
Total dividends received (eg from common stock, registered investment company shares)	2020-12-31	$0
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2020-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2020-12-31	$0
Assets. Real estate other than employer real property at end of year	2020-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2020-12-31	$0
Administrative expenses professional fees incurred	2020-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2020-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2020-12-31	$0
Was this plan covered by a fidelity bond	2020-12-31	Yes
Value of fidelity bond cover	2020-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2020-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2020-12-31	No
Contributions received from participants	2020-12-31	$33,761,600
Participant contributions at end of year	2020-12-31	$3,804,399
Participant contributions at beginning of year	2020-12-31	$2,935,806
Participant contributions at end of year	2020-12-31	$0
Participant contributions at beginning of year	2020-12-31	$0
Assets. Other investments not covered elsewhere at end of year	2020-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2020-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2020-12-31	$24,947,342
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 year	2020-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2020-12-31	$0
Assets. Loans (other than to participants) at end of year	2020-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2020-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2020-12-31	$49,309
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2020-12-31	$1,752
Other income not declared elsewhere	2020-12-31	$0
Administrative expenses (other) incurred	2020-12-31	$650,043
Liabilities. Value of operating payables at end of year	2020-12-31	$0
Liabilities. Value of operating payables at beginning of year	2020-12-31	$0
Total non interest bearing cash at end of year	2020-12-31	$0
Total non interest bearing cash at beginning of year	2020-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2020-12-31	No
Income. Non cash contributions	2020-12-31	$0
Value of net income/loss	2020-12-31	$97,866,460
Value of net assets at end of year (total assets less liabilities)	2020-12-31	$397,810,938
Value of net assets at beginning of year (total assets less liabilities)	2020-12-31	$299,944,478
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2020-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2020-12-31	No
Were any leases to which the plan was party in default or uncollectible	2020-12-31	No
Assets. partnership/joint venture interests at end of year	2020-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2020-12-31	$0
Investment advisory and management fees	2020-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at end of year	2020-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2020-12-31	$0
Value of interest in pooled separate accounts at end of year	2020-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2020-12-31	$0
Interest on participant loans	2020-12-31	$158,399
Income. Interest from loans (other than to participants)	2020-12-31	$0
Interest earned on other investments	2020-12-31	$0
Income. Interest from US Government securities	2020-12-31	$0
Income. Interest from corporate debt instruments	2020-12-31	$0
Value of interest in master investment trust accounts at end of year	2020-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2020-12-31	$0
Value of interest in common/collective trusts at end of year	2020-12-31	$383,419,269
Value of interest in common/collective trusts at beginning of year	2020-12-31	$289,022,941
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2020-12-31	$8,535,010
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2020-12-31	$5,056,489
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2020-12-31	$5,056,489
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2020-12-31	$14,490
Assets. Value of investments in 103.12 investment entities at end of year	2020-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2020-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2020-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2020-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2020-12-31	$0
Asset value of US Government securities at end of year	2020-12-31	$0
Asset value of US Government securities at beginning of year	2020-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2020-12-31	$0
Net investment gain/loss from pooled separate accounts	2020-12-31	$0
Net investment gain or loss from common/collective trusts	2020-12-31	$52,203,283
Net gain/loss from 103.12 investment entities	2020-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2020-12-31	No
Was there a failure to transmit to the plan any participant contributions	2020-12-31	No
Has the plan failed to provide any benefit when due under the plan	2020-12-31	No
Assets. Invements in employer securities at end of year	2020-12-31	$0
Assets. Invements in employer securities at beginning of year	2020-12-31	$0
Assets. Value of employer real property at end of year	2020-12-31	$0
Assets. Value of employer real property at beginning of year	2020-12-31	$0
Contributions received in cash from employer	2020-12-31	$21,656,686
Employer contributions (assets) at end of year	2020-12-31	$2,101,569
Employer contributions (assets) at beginning of year	2020-12-31	$2,930,994
Income. Dividends from preferred stock	2020-12-31	$0
Income. Dividends from common stock	2020-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2020-12-31	$34,225,297
Asset. Corporate debt instrument preferred debt at end of year	2020-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2020-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2020-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2020-12-31	$0
Contract administrator fees	2020-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2020-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2020-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2020-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2020-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2020-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2020-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2020-12-31	$0
Did the plan have assets held for investment	2020-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2020-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2020-12-31	No
Aggregate proceeds on sale of assets	2020-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2020-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2020-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2020-12-31	$0
Opinion of an independent qualified public accountant for this plan	2020-12-31	Disclaimer
Accountancy firm name	2020-12-31	MARCUM, LLP
Accountancy firm EIN	2020-12-31	111986323
2019 : ALEXION PHARMACEUTICALS INC 401K PLAN 2019 401k financial data
Unrealized appreciation/depreciation of real estate assets	2019-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2019-12-31	$0
Total unrealized appreciation/depreciation of assets	2019-12-31	$0
Total transfer of assets to this plan	2019-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$1,752
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$29,326
Expenses. Interest paid	2019-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2019-12-31	$0
Total income from all sources (including contributions)	2019-12-31	$107,805,407
Total loss/gain on sale of assets	2019-12-31	$0
Total of all expenses incurred	2019-12-31	$29,466,146
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2019-12-31	$29,315,318
Expenses. Certain deemed distributions of participant loans	2019-12-31	$0
Value of total corrective distributions	2019-12-31	$23,139
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2019-12-31	$55,573,984
Value of total assets at end of year	2019-12-31	$299,946,230
Value of total assets at beginning of year	2019-12-31	$221,634,543
Total of administrative expenses incurred including professional, contract, advisory and management fees	2019-12-31	$127,689
Total income from rents	2019-12-31	$0
Total interest from all sources	2019-12-31	$221,155
Total dividends received (eg from common stock, registered investment company shares)	2019-12-31	$57,197
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2019-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2019-12-31	$57,197
Assets. Real estate other than employer real property at end of year	2019-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2019-12-31	$0
Administrative expenses professional fees incurred	2019-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2019-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2019-12-31	$0
Was this plan covered by a fidelity bond	2019-12-31	Yes
Value of fidelity bond cover	2019-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2019-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2019-12-31	No
Contributions received from participants	2019-12-31	$25,855,657
Participant contributions at end of year	2019-12-31	$2,935,806
Participant contributions at beginning of year	2019-12-31	$2,508,735
Participant contributions at end of year	2019-12-31	$0
Participant contributions at beginning of year	2019-12-31	$0
Assets. Other investments not covered elsewhere at end of year	2019-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2019-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2019-12-31	$11,020,445
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 year	2019-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2019-12-31	$0
Assets. Loans (other than to participants) at end of year	2019-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2019-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2019-12-31	$1,752
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2019-12-31	$29,326
Other income not declared elsewhere	2019-12-31	$0
Administrative expenses (other) incurred	2019-12-31	$127,689
Liabilities. Value of operating payables at end of year	2019-12-31	$0
Liabilities. Value of operating payables at beginning of year	2019-12-31	$0
Total non interest bearing cash at end of year	2019-12-31	$0
Total non interest bearing cash at beginning of year	2019-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2019-12-31	No
Income. Non cash contributions	2019-12-31	$0
Value of net income/loss	2019-12-31	$78,339,261
Value of net assets at end of year (total assets less liabilities)	2019-12-31	$299,944,478
Value of net assets at beginning of year (total assets less liabilities)	2019-12-31	$221,605,217
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2019-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2019-12-31	No
Were any leases to which the plan was party in default or uncollectible	2019-12-31	No
Assets. partnership/joint venture interests at end of year	2019-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2019-12-31	$0
Investment advisory and management fees	2019-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at end of year	2019-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2019-12-31	$213,060,380
Value of interest in pooled separate accounts at end of year	2019-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2019-12-31	$0
Interest on participant loans	2019-12-31	$142,295
Income. Interest from loans (other than to participants)	2019-12-31	$0
Interest earned on other investments	2019-12-31	$0
Income. Interest from US Government securities	2019-12-31	$0
Income. Interest from corporate debt instruments	2019-12-31	$0
Value of interest in master investment trust accounts at end of year	2019-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2019-12-31	$0
Value of interest in common/collective trusts at end of year	2019-12-31	$289,022,941
Value of interest in common/collective trusts at beginning of year	2019-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2019-12-31	$5,056,489
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2019-12-31	$3,965,549
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2019-12-31	$3,965,549
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2019-12-31	$78,860
Assets. Value of investments in 103.12 investment entities at end of year	2019-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2019-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2019-12-31	$0
Asset value of US Government securities at end of year	2019-12-31	$0
Asset value of US Government securities at beginning of year	2019-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2019-12-31	$21,269,730
Net investment gain/loss from pooled separate accounts	2019-12-31	$0
Net investment gain or loss from common/collective trusts	2019-12-31	$30,683,341
Net gain/loss from 103.12 investment entities	2019-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2019-12-31	No
Was there a failure to transmit to the plan any participant contributions	2019-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2019-12-31	No
Assets. Invements in employer securities at end of year	2019-12-31	$0
Assets. Invements in employer securities at beginning of year	2019-12-31	$0
Assets. Value of employer real property at end of year	2019-12-31	$0
Assets. Value of employer real property at beginning of year	2019-12-31	$0
Contributions received in cash from employer	2019-12-31	$18,697,882
Employer contributions (assets) at end of year	2019-12-31	$2,930,994
Employer contributions (assets) at beginning of year	2019-12-31	$2,099,879
Income. Dividends from preferred stock	2019-12-31	$0
Income. Dividends from common stock	2019-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2019-12-31	$29,315,318
Asset. Corporate debt instrument preferred debt at end of year	2019-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2019-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2019-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2019-12-31	$0
Contract administrator fees	2019-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2019-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2019-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2019-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2019-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2019-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2019-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2019-12-31	$0
Did the plan have assets held for investment	2019-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2019-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2019-12-31	No
Aggregate proceeds on sale of assets	2019-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2019-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2019-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2019-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2019-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2019-12-31	Disclaimer
Accountancy firm name	2019-12-31	MARCUM, LLP
Accountancy firm EIN	2019-12-31	111986323
2018 : ALEXION PHARMACEUTICALS INC 401K PLAN 2018 401k financial data
Unrealized appreciation/depreciation of real estate assets	2018-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2018-12-31	$0
Total unrealized appreciation/depreciation of assets	2018-12-31	$0
Total transfer of assets to this plan	2018-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$29,326
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$10,304
Expenses. Interest paid	2018-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2018-12-31	$0
Total income from all sources (including contributions)	2018-12-31	$26,012,711
Total loss/gain on sale of assets	2018-12-31	$0
Total of all expenses incurred	2018-12-31	$37,964,833
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2018-12-31	$37,964,833
Expenses. Certain deemed distributions of participant loans	2018-12-31	$0
Value of total corrective distributions	2018-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2018-12-31	$42,133,821
Value of total assets at end of year	2018-12-31	$221,634,543
Value of total assets at beginning of year	2018-12-31	$233,567,643
Total of administrative expenses incurred including professional, contract, advisory and management fees	2018-12-31	$0
Total income from rents	2018-12-31	$0
Total interest from all sources	2018-12-31	$186,525
Total dividends received (eg from common stock, registered investment company shares)	2018-12-31	$11,359,326
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2018-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2018-12-31	$11,359,326
Assets. Real estate other than employer real property at end of year	2018-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2018-12-31	$0
Administrative expenses professional fees incurred	2018-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2018-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2018-12-31	$0
Was this plan covered by a fidelity bond	2018-12-31	Yes
Value of fidelity bond cover	2018-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2018-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2018-12-31	No
Contributions received from participants	2018-12-31	$20,037,309
Participant contributions at end of year	2018-12-31	$2,508,735
Participant contributions at beginning of year	2018-12-31	$3,116,840
Participant contributions at end of year	2018-12-31	$0
Participant contributions at beginning of year	2018-12-31	$0
Assets. Other investments not covered elsewhere at end of year	2018-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2018-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2018-12-31	$7,634,609
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 year	2018-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2018-12-31	$0
Assets. Loans (other than to participants) at end of year	2018-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2018-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2018-12-31	$29,326
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2018-12-31	$10,304
Other income not declared elsewhere	2018-12-31	$0
Administrative expenses (other) incurred	2018-12-31	$0
Liabilities. Value of operating payables at end of year	2018-12-31	$0
Liabilities. Value of operating payables at beginning of year	2018-12-31	$0
Total non interest bearing cash at end of year	2018-12-31	$0
Total non interest bearing cash at beginning of year	2018-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2018-12-31	No
Income. Non cash contributions	2018-12-31	$0
Value of net income/loss	2018-12-31	$-11,952,122
Value of net assets at end of year (total assets less liabilities)	2018-12-31	$221,605,217
Value of net assets at beginning of year (total assets less liabilities)	2018-12-31	$233,557,339
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2018-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2018-12-31	No
Were any leases to which the plan was party in default or uncollectible	2018-12-31	No
Assets. partnership/joint venture interests at end of year	2018-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2018-12-31	$0
Investment advisory and management fees	2018-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at end of year	2018-12-31	$213,060,380
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2018-12-31	$225,229,666
Value of interest in pooled separate accounts at end of year	2018-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2018-12-31	$0
Interest on participant loans	2018-12-31	$133,008
Income. Interest from loans (other than to participants)	2018-12-31	$0
Interest earned on other investments	2018-12-31	$0
Income. Interest from US Government securities	2018-12-31	$0
Income. Interest from corporate debt instruments	2018-12-31	$0
Value of interest in master investment trust accounts at end of year	2018-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2018-12-31	$0
Value of interest in common/collective trusts at end of year	2018-12-31	$0
Value of interest in common/collective trusts at beginning of year	2018-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2018-12-31	$3,965,549
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2018-12-31	$3,372,534
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2018-12-31	$3,372,534
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2018-12-31	$53,517
Assets. Value of investments in 103.12 investment entities at end of year	2018-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2018-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2018-12-31	$0
Asset value of US Government securities at end of year	2018-12-31	$0
Asset value of US Government securities at beginning of year	2018-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2018-12-31	$-27,666,961
Net investment gain/loss from pooled separate accounts	2018-12-31	$0
Net investment gain or loss from common/collective trusts	2018-12-31	$0
Net gain/loss from 103.12 investment entities	2018-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2018-12-31	No
Was there a failure to transmit to the plan any participant contributions	2018-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2018-12-31	No
Assets. Invements in employer securities at end of year	2018-12-31	$0
Assets. Invements in employer securities at beginning of year	2018-12-31	$0
Assets. Value of employer real property at end of year	2018-12-31	$0
Assets. Value of employer real property at beginning of year	2018-12-31	$0
Contributions received in cash from employer	2018-12-31	$14,461,903
Employer contributions (assets) at end of year	2018-12-31	$2,099,879
Employer contributions (assets) at beginning of year	2018-12-31	$1,848,603
Income. Dividends from preferred stock	2018-12-31	$0
Income. Dividends from common stock	2018-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2018-12-31	$37,964,833
Asset. Corporate debt instrument preferred debt at end of year	2018-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2018-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2018-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2018-12-31	$0
Contract administrator fees	2018-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2018-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2018-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2018-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2018-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2018-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2018-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2018-12-31	$0
Did the plan have assets held for investment	2018-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2018-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2018-12-31	No
Aggregate proceeds on sale of assets	2018-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2018-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2018-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2018-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2018-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2018-12-31	Disclaimer
Accountancy firm name	2018-12-31	MARCUM, LLP
Accountancy firm EIN	2018-12-31	111986323
2017 : ALEXION PHARMACEUTICALS INC 401K PLAN 2017 401k financial data
Unrealized appreciation/depreciation of real estate assets	2017-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2017-12-31	$0
Total unrealized appreciation/depreciation of assets	2017-12-31	$0
Total transfer of assets to this plan	2017-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$10,304
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$35,902
Expenses. Interest paid	2017-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2017-12-31	$0
Total income from all sources (including contributions)	2017-12-31	$83,413,115
Total loss/gain on sale of assets	2017-12-31	$0
Total of all expenses incurred	2017-12-31	$31,997,217
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2017-12-31	$31,881,540
Expenses. Certain deemed distributions of participant loans	2017-12-31	$4,856
Value of total corrective distributions	2017-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2017-12-31	$46,973,692
Value of total assets at end of year	2017-12-31	$233,567,643
Value of total assets at beginning of year	2017-12-31	$182,177,343
Total of administrative expenses incurred including professional, contract, advisory and management fees	2017-12-31	$110,821
Total income from rents	2017-12-31	$0
Total interest from all sources	2017-12-31	$148,819
Total dividends received (eg from common stock, registered investment company shares)	2017-12-31	$8,488,073
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2017-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2017-12-31	$8,488,073
Assets. Real estate other than employer real property at end of year	2017-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2017-12-31	$0
Administrative expenses professional fees incurred	2017-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2017-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2017-12-31	$0
Was this plan covered by a fidelity bond	2017-12-31	Yes
Value of fidelity bond cover	2017-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2017-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2017-12-31	No
Contributions received from participants	2017-12-31	$22,596,960
Participant contributions at end of year	2017-12-31	$3,116,840
Participant contributions at beginning of year	2017-12-31	$2,690,044
Participant contributions at end of year	2017-12-31	$0
Participant contributions at beginning of year	2017-12-31	$0
Assets. Other investments not covered elsewhere at end of year	2017-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2017-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2017-12-31	$8,361,405
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 year	2017-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2017-12-31	$0
Assets. Loans (other than to participants) at end of year	2017-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2017-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2017-12-31	$10,304
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2017-12-31	$35,902
Other income not declared elsewhere	2017-12-31	$0
Administrative expenses (other) incurred	2017-12-31	$110,821
Liabilities. Value of operating payables at end of year	2017-12-31	$0
Liabilities. Value of operating payables at beginning of year	2017-12-31	$0
Total non interest bearing cash at end of year	2017-12-31	$0
Total non interest bearing cash at beginning of year	2017-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2017-12-31	No
Income. Non cash contributions	2017-12-31	$0
Value of net income/loss	2017-12-31	$51,415,898
Value of net assets at end of year (total assets less liabilities)	2017-12-31	$233,557,339
Value of net assets at beginning of year (total assets less liabilities)	2017-12-31	$182,141,441
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2017-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2017-12-31	No
Were any leases to which the plan was party in default or uncollectible	2017-12-31	No
Assets. partnership/joint venture interests at end of year	2017-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2017-12-31	$0
Investment advisory and management fees	2017-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at end of year	2017-12-31	$225,229,666
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2017-12-31	$174,924,328
Value of interest in pooled separate accounts at end of year	2017-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2017-12-31	$0
Interest on participant loans	2017-12-31	$129,581
Income. Interest from loans (other than to participants)	2017-12-31	$0
Interest earned on other investments	2017-12-31	$0
Income. Interest from US Government securities	2017-12-31	$0
Income. Interest from corporate debt instruments	2017-12-31	$0
Value of interest in master investment trust accounts at end of year	2017-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2017-12-31	$0
Value of interest in common/collective trusts at end of year	2017-12-31	$0
Value of interest in common/collective trusts at beginning of year	2017-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2017-12-31	$3,372,534
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2017-12-31	$2,996,785
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2017-12-31	$2,996,785
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2017-12-31	$19,238
Assets. Value of investments in 103.12 investment entities at end of year	2017-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2017-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2017-12-31	$0
Asset value of US Government securities at end of year	2017-12-31	$0
Asset value of US Government securities at beginning of year	2017-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2017-12-31	$27,802,531
Net investment gain/loss from pooled separate accounts	2017-12-31	$0
Net investment gain or loss from common/collective trusts	2017-12-31	$0
Net gain/loss from 103.12 investment entities	2017-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2017-12-31	No
Was there a failure to transmit to the plan any participant contributions	2017-12-31	No
Has the plan failed to provide any benefit when due under the plan	2017-12-31	No
Assets. Invements in employer securities at end of year	2017-12-31	$0
Assets. Invements in employer securities at beginning of year	2017-12-31	$0
Assets. Value of employer real property at end of year	2017-12-31	$0
Assets. Value of employer real property at beginning of year	2017-12-31	$0
Contributions received in cash from employer	2017-12-31	$16,015,327
Employer contributions (assets) at end of year	2017-12-31	$1,848,603
Employer contributions (assets) at beginning of year	2017-12-31	$1,566,186
Income. Dividends from preferred stock	2017-12-31	$0
Income. Dividends from common stock	2017-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2017-12-31	$31,881,540
Asset. Corporate debt instrument preferred debt at end of year	2017-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2017-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2017-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2017-12-31	$0
Contract administrator fees	2017-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2017-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2017-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2017-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2017-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2017-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2017-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2017-12-31	$0
Did the plan have assets held for investment	2017-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2017-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2017-12-31	No
Aggregate proceeds on sale of assets	2017-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2017-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2017-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2017-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2017-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2017-12-31	Disclaimer
Accountancy firm name	2017-12-31	MARCUM, LLP
Accountancy firm EIN	2017-12-31	111986323
2016 : ALEXION PHARMACEUTICALS INC 401K PLAN 2016 401k financial data
Unrealized appreciation/depreciation of real estate assets	2016-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2016-12-31	$0
Total unrealized appreciation/depreciation of assets	2016-12-31	$0
Total transfer of assets to this plan	2016-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$35,902
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$21,104
Expenses. Interest paid	2016-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2016-12-31	$0
Total income from all sources (including contributions)	2016-12-31	$56,237,461
Total loss/gain on sale of assets	2016-12-31	$0
Total of all expenses incurred	2016-12-31	$16,672,441
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2016-12-31	$16,664,360
Expenses. Certain deemed distributions of participant loans	2016-12-31	$0
Value of total corrective distributions	2016-12-31	$0
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2016-12-31	$45,055,712
Value of total assets at end of year	2016-12-31	$182,177,343
Value of total assets at beginning of year	2016-12-31	$142,597,525
Total of administrative expenses incurred including professional, contract, advisory and management fees	2016-12-31	$8,081
Total income from rents	2016-12-31	$0
Total interest from all sources	2016-12-31	$91,538
Total dividends received (eg from common stock, registered investment company shares)	2016-12-31	$4,884,876
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2016-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2016-12-31	$4,884,876
Assets. Real estate other than employer real property at end of year	2016-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2016-12-31	$0
Administrative expenses professional fees incurred	2016-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at end of year	2016-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2016-12-31	$0
Was this plan covered by a fidelity bond	2016-12-31	Yes
Value of fidelity bond cover	2016-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2016-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2016-12-31	No
Contributions received from participants	2016-12-31	$21,599,812
Participant contributions at end of year	2016-12-31	$2,690,044
Participant contributions at beginning of year	2016-12-31	$1,932,462
Participant contributions at end of year	2016-12-31	$0
Participant contributions at beginning of year	2016-12-31	$12,350
Assets. Other investments not covered elsewhere at end of year	2016-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2016-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2016-12-31	$7,946,530
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2016-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2016-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2016-12-31	$0
Assets. Loans (other than to participants) at end of year	2016-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2016-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2016-12-31	$35,902
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2016-12-31	$21,104
Other income not declared elsewhere	2016-12-31	$0
Administrative expenses (other) incurred	2016-12-31	$8,081
Liabilities. Value of operating payables at end of year	2016-12-31	$0
Liabilities. Value of operating payables at beginning of year	2016-12-31	$0
Total non interest bearing cash at end of year	2016-12-31	$0
Total non interest bearing cash at beginning of year	2016-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2016-12-31	No
Income. Non cash contributions	2016-12-31	$0
Value of net income/loss	2016-12-31	$39,565,020
Value of net assets at end of year (total assets less liabilities)	2016-12-31	$182,141,441
Value of net assets at beginning of year (total assets less liabilities)	2016-12-31	$142,576,421
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2016-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2016-12-31	No
Were any leases to which the plan was party in default or uncollectible	2016-12-31	No
Assets. partnership/joint venture interests at end of year	2016-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2016-12-31	$0
Investment advisory and management fees	2016-12-31	$0
Value of interest in registered invesment companies (eg mutual funds) at end of year	2016-12-31	$174,924,328
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2016-12-31	$139,154,088
Value of interest in pooled separate accounts at end of year	2016-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2016-12-31	$0
Interest on participant loans	2016-12-31	$91,538
Income. Interest from loans (other than to participants)	2016-12-31	$0
Interest earned on other investments	2016-12-31	$0
Income. Interest from US Government securities	2016-12-31	$0
Income. Interest from corporate debt instruments	2016-12-31	$0
Value of interest in master investment trust accounts at end of year	2016-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2016-12-31	$0
Value of interest in common/collective trusts at end of year	2016-12-31	$0
Value of interest in common/collective trusts at beginning of year	2016-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2016-12-31	$2,996,785
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2016-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2016-12-31	$0
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2016-12-31	$0
Assets. Value of investments in 103.12 investment entities at end of year	2016-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2016-12-31	$0
Expenses. Payments to insurance carriers foe the provision of benefits	2016-12-31	$0
Asset value of US Government securities at end of year	2016-12-31	$0
Asset value of US Government securities at beginning of year	2016-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2016-12-31	$6,205,335
Net investment gain/loss from pooled separate accounts	2016-12-31	$0
Net investment gain or loss from common/collective trusts	2016-12-31	$0
Net gain/loss from 103.12 investment entities	2016-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2016-12-31	No
Was there a failure to transmit to the plan any participant contributions	2016-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2016-12-31	No
Assets. Invements in employer securities at end of year	2016-12-31	$0
Assets. Invements in employer securities at beginning of year	2016-12-31	$0
Assets. Value of employer real property at end of year	2016-12-31	$0
Assets. Value of employer real property at beginning of year	2016-12-31	$0
Contributions received in cash from employer	2016-12-31	$15,509,370
Employer contributions (assets) at end of year	2016-12-31	$1,566,186
Employer contributions (assets) at beginning of year	2016-12-31	$1,498,625
Income. Dividends from preferred stock	2016-12-31	$0
Income. Dividends from common stock	2016-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2016-12-31	$16,664,360
Asset. Corporate debt instrument preferred debt at end of year	2016-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2016-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2016-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2016-12-31	$0
Contract administrator fees	2016-12-31	$0
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2016-12-31	No
Assets. Corporate common stocks other than exployer securities at end of year	2016-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2016-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2016-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2016-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2016-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2016-12-31	$0
Did the plan have assets held for investment	2016-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2016-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2016-12-31	No
Aggregate proceeds on sale of assets	2016-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2016-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2016-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2016-12-31	$0
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2016-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2016-12-31	Disclaimer
Accountancy firm name	2016-12-31	MARCUM, LLP
Accountancy firm EIN	2016-12-31	111986323
2015 : ALEXION PHARMACEUTICALS INC 401K PLAN 2015 401k financial data
Total unrealized appreciation/depreciation of assets	2015-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$21,104
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$37,883
Total income from all sources (including contributions)	2015-12-31	$45,395,316
Total loss/gain on sale of assets	2015-12-31	$0
Total of all expenses incurred	2015-12-31	$14,420,827
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2015-12-31	$14,379,925
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2015-12-31	$46,473,167
Value of total assets at end of year	2015-12-31	$142,597,525
Value of total assets at beginning of year	2015-12-31	$111,639,815
Total of administrative expenses incurred including professional, contract, advisory and management fees	2015-12-31	$40,902
Total interest from all sources	2015-12-31	$62,356
Total dividends received (eg from common stock, registered investment company shares)	2015-12-31	$4,001,813
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2015-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2015-12-31	$4,001,813
Administrative expenses professional fees incurred	2015-12-31	$40,902
Was this plan covered by a fidelity bond	2015-12-31	Yes
Value of fidelity bond cover	2015-12-31	$5,000,000
If this is an individual account plan, was there a blackout period	2015-12-31	Yes
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2015-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2015-12-31	No
Contributions received from participants	2015-12-31	$17,942,362
Participant contributions at end of year	2015-12-31	$1,932,462
Participant contributions at beginning of year	2015-12-31	$1,309,611
Participant contributions at end of year	2015-12-31	$12,350
Participant contributions at beginning of year	2015-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2015-12-31	$15,803,887
Value of other receiveables (less allowance for doubtful accounts) at end of year	2015-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2015-12-31	$479
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2015-12-31	$21,104
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2015-12-31	$37,883
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2015-12-31	No
Value of net income/loss	2015-12-31	$30,974,489
Value of net assets at end of year (total assets less liabilities)	2015-12-31	$142,576,421
Value of net assets at beginning of year (total assets less liabilities)	2015-12-31	$111,601,932
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2015-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2015-12-31	No
Were any leases to which the plan was party in default or uncollectible	2015-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2015-12-31	$139,154,088
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2015-12-31	$109,964,797
Interest on participant loans	2015-12-31	$62,356
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2015-12-31	$-5,142,020
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2015-12-31	No
Was there a failure to transmit to the plan any participant contributions	2015-12-31	No
Has the plan failed to provide any benefit when due under the plan	2015-12-31	No
Contributions received in cash from employer	2015-12-31	$12,726,918
Employer contributions (assets) at end of year	2015-12-31	$1,498,625
Employer contributions (assets) at beginning of year	2015-12-31	$364,928
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2015-12-31	$14,379,925
Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3	2015-12-31	Yes
Did the plan have assets held for investment	2015-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2015-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2015-12-31	No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2015-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2015-12-31	Disclaimer
Accountancy firm name	2015-12-31	MARCUM, LLP
Accountancy firm EIN	2015-12-31	111986323
2014 : ALEXION PHARMACEUTICALS INC 401K PLAN 2014 401k financial data
Total unrealized appreciation/depreciation of assets	2014-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$37,883
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$7,644
Total income from all sources (including contributions)	2014-12-31	$33,792,166
Total loss/gain on sale of assets	2014-12-31	$0
Total of all expenses incurred	2014-12-31	$9,143,113
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2014-12-31	$9,117,598
Value of total corrective distributions	2014-12-31	$8,136
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2014-12-31	$28,027,990
Value of total assets at end of year	2014-12-31	$111,639,815
Value of total assets at beginning of year	2014-12-31	$86,960,523
Total of administrative expenses incurred including professional, contract, advisory and management fees	2014-12-31	$17,379
Total interest from all sources	2014-12-31	$43,690
Total dividends received (eg from common stock, registered investment company shares)	2014-12-31	$5,861,364
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2014-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2014-12-31	$5,861,364
Administrative expenses professional fees incurred	2014-12-31	$17,379
Was this plan covered by a fidelity bond	2014-12-31	Yes
Value of fidelity bond cover	2014-12-31	$1,000,000
If this is an individual account plan, was there a blackout period	2014-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2014-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2014-12-31	No
Contributions received from participants	2014-12-31	$12,771,692
Participant contributions at end of year	2014-12-31	$1,309,611
Participant contributions at beginning of year	2014-12-31	$1,072,844
Participant contributions at end of year	2014-12-31	$0
Participant contributions at beginning of year	2014-12-31	$500
Income. Received or receivable in cash from other sources (including rollovers)	2014-12-31	$6,115,741
Value of other receiveables (less allowance for doubtful accounts) at end of year	2014-12-31	$479
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2014-12-31	$479
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2014-12-31	$37,883
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2014-12-31	$7,644
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2014-12-31	No
Value of net income/loss	2014-12-31	$24,649,053
Value of net assets at end of year (total assets less liabilities)	2014-12-31	$111,601,932
Value of net assets at beginning of year (total assets less liabilities)	2014-12-31	$86,952,879
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2014-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2014-12-31	No
Were any leases to which the plan was party in default or uncollectible	2014-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2014-12-31	$109,964,797
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2014-12-31	$85,690,437
Interest on participant loans	2014-12-31	$43,690
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2014-12-31	$-140,878
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2014-12-31	No
Was there a failure to transmit to the plan any participant contributions	2014-12-31	No
Has the plan failed to provide any benefit when due under the plan	2014-12-31	No
Contributions received in cash from employer	2014-12-31	$9,140,557
Employer contributions (assets) at end of year	2014-12-31	$364,928
Employer contributions (assets) at beginning of year	2014-12-31	$196,263
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2014-12-31	$9,117,598
Did the plan have assets held for investment	2014-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2014-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2014-12-31	No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2014-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2014-12-31	Disclaimer
Accountancy firm name	2014-12-31	MARCUM, LLP
Accountancy firm EIN	2014-12-31	111986323
2013 : ALEXION PHARMACEUTICALS INC 401K PLAN 2013 401k financial data
Total unrealized appreciation/depreciation of assets	2013-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$7,644
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$4,146
Total income from all sources (including contributions)	2013-12-31	$35,095,330
Total loss/gain on sale of assets	2013-12-31	$0
Total of all expenses incurred	2013-12-31	$4,733,657
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2013-12-31	$4,718,634
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2013-12-31	$20,751,352
Value of total assets at end of year	2013-12-31	$86,960,523
Value of total assets at beginning of year	2013-12-31	$56,595,352
Total of administrative expenses incurred including professional, contract, advisory and management fees	2013-12-31	$15,023
Total interest from all sources	2013-12-31	$33,157
Total dividends received (eg from common stock, registered investment company shares)	2013-12-31	$3,091,935
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2013-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2013-12-31	$3,091,935
Was this plan covered by a fidelity bond	2013-12-31	Yes
Value of fidelity bond cover	2013-12-31	$1,000,000
If this is an individual account plan, was there a blackout period	2013-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2013-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2013-12-31	No
Contributions received from participants	2013-12-31	$10,024,069
Participant contributions at end of year	2013-12-31	$1,072,844
Participant contributions at beginning of year	2013-12-31	$719,664
Participant contributions at end of year	2013-12-31	$500
Participant contributions at beginning of year	2013-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2013-12-31	$4,131,429
Value of other receiveables (less allowance for doubtful accounts) at end of year	2013-12-31	$479
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2013-12-31	$2,198
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2013-12-31	$7,644
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2013-12-31	$4,146
Administrative expenses (other) incurred	2013-12-31	$15,023
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2013-12-31	No
Value of net income/loss	2013-12-31	$30,361,673
Value of net assets at end of year (total assets less liabilities)	2013-12-31	$86,952,879
Value of net assets at beginning of year (total assets less liabilities)	2013-12-31	$56,591,206
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2013-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2013-12-31	No
Were any leases to which the plan was party in default or uncollectible	2013-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2013-12-31	$85,690,437
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2013-12-31	$55,873,490
Interest on participant loans	2013-12-31	$33,157
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2013-12-31	$11,218,886
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2013-12-31	No
Was there a failure to transmit to the plan any participant contributions	2013-12-31	No
Has the plan failed to provide any benefit when due under the plan	2013-12-31	No
Contributions received in cash from employer	2013-12-31	$6,595,854
Employer contributions (assets) at end of year	2013-12-31	$196,263
Employer contributions (assets) at beginning of year	2013-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2013-12-31	$4,718,634
Did the plan have assets held for investment	2013-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2013-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2013-12-31	No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2013-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2013-12-31	Disclaimer
Accountancy firm name	2013-12-31	MARCUM, LLP
Accountancy firm EIN	2013-12-31	111986323
2012 : ALEXION PHARMACEUTICALS INC 401K PLAN 2012 401k financial data
Total unrealized appreciation/depreciation of assets	2012-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$4,146
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$9,557
Total income from all sources (including contributions)	2012-12-31	$19,760,145
Total loss/gain on sale of assets	2012-12-31	$0
Total of all expenses incurred	2012-12-31	$2,930,432
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2012-12-31	$2,919,127
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2012-12-31	$13,242,589
Value of total assets at end of year	2012-12-31	$56,595,352
Value of total assets at beginning of year	2012-12-31	$39,771,050
Total of administrative expenses incurred including professional, contract, advisory and management fees	2012-12-31	$11,305
Total interest from all sources	2012-12-31	$24,496
Total dividends received (eg from common stock, registered investment company shares)	2012-12-31	$1,271,585
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2012-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2012-12-31	$1,271,585
Was this plan covered by a fidelity bond	2012-12-31	Yes
Value of fidelity bond cover	2012-12-31	$500,000
If this is an individual account plan, was there a blackout period	2012-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2012-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2012-12-31	No
Contributions received from participants	2012-12-31	$7,264,623
Participant contributions at end of year	2012-12-31	$719,664
Participant contributions at beginning of year	2012-12-31	$549,824
Participant contributions at end of year	2012-12-31	$0
Participant contributions at beginning of year	2012-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2012-12-31	$2,226,469
Value of other receiveables (less allowance for doubtful accounts) at end of year	2012-12-31	$2,198
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2012-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2012-12-31	$4,146
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2012-12-31	$9,557
Administrative expenses (other) incurred	2012-12-31	$11,305
Total non interest bearing cash at end of year	2012-12-31	$0
Total non interest bearing cash at beginning of year	2012-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2012-12-31	No
Value of net income/loss	2012-12-31	$16,829,713
Value of net assets at end of year (total assets less liabilities)	2012-12-31	$56,591,206
Value of net assets at beginning of year (total assets less liabilities)	2012-12-31	$39,761,493
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2012-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2012-12-31	No
Were any leases to which the plan was party in default or uncollectible	2012-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2012-12-31	$55,873,490
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2012-12-31	$39,221,226
Interest on participant loans	2012-12-31	$24,496
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2012-12-31	$0
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2012-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2012-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2012-12-31	$5,221,475
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2012-12-31	No
Was there a failure to transmit to the plan any participant contributions	2012-12-31	No
Has the plan failed to provide any benefit when due under the plan	2012-12-31	No
Contributions received in cash from employer	2012-12-31	$3,751,497
Employer contributions (assets) at end of year	2012-12-31	$0
Employer contributions (assets) at beginning of year	2012-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2012-12-31	$2,919,127
Did the plan have assets held for investment	2012-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2012-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2012-12-31	No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2012-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2012-12-31	Disclaimer
Accountancy firm name	2012-12-31	MARCUM, LLP
Accountancy firm EIN	2012-12-31	111986323
2011 : ALEXION PHARMACEUTICALS INC 401K PLAN 2011 401k financial data
Total unrealized appreciation/depreciation of assets	2011-12-31	$0
Total transfer of assets to this plan	2011-12-31	$363,602
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2011-12-31	$9,557
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	$7,406,631
Total loss/gain on sale of assets	2011-12-31	$0
Total of all expenses incurred	2011-12-31	$1,369,937
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2011-12-31	$1,355,687
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2011-12-31	$8,628,520
Value of total assets at end of year	2011-12-31	$39,771,050
Value of total assets at beginning of year	2011-12-31	$33,361,197
Total of administrative expenses incurred including professional, contract, advisory and management fees	2011-12-31	$14,250
Total interest from all sources	2011-12-31	$18,623
Total dividends received (eg from common stock, registered investment company shares)	2011-12-31	$0
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2011-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2011-12-31	$0
Administrative expenses professional fees incurred	2011-12-31	$14,250
Was this plan covered by a fidelity bond	2011-12-31	Yes
Value of fidelity bond cover	2011-12-31	$500,000
If this is an individual account plan, was there a blackout period	2011-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2011-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2011-12-31	No
Contributions received from participants	2011-12-31	$5,589,768
Participant contributions at end of year	2011-12-31	$549,824
Participant contributions at beginning of year	2011-12-31	$498,300
Participant contributions at end of year	2011-12-31	$0
Participant contributions at beginning of year	2011-12-31	$112,393
Income. Received or receivable in cash from other sources (including rollovers)	2011-12-31	$166,795
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2011-12-31	$9,557
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2011-12-31	$0
Total non interest bearing cash at end of year	2011-12-31	$0
Total non interest bearing cash at beginning of year	2011-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2011-12-31	No
Value of net income/loss	2011-12-31	$6,036,694
Value of net assets at end of year (total assets less liabilities)	2011-12-31	$39,761,493
Value of net assets at beginning of year (total assets less liabilities)	2011-12-31	$33,361,197
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2011-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2011-12-31	No
Were any leases to which the plan was party in default or uncollectible	2011-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2011-12-31	$39,221,226
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2011-12-31	$32,703,588
Value of interest in pooled separate accounts at end of year	2011-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2011-12-31	$0
Interest on participant loans	2011-12-31	$18,623
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2011-12-31	$0
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2011-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2011-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2011-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2011-12-31	$0
Net investment gain or loss from common/collective trusts	2011-12-31	$-1,240,512
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2011-12-31	No
Was there a failure to transmit to the plan any participant contributions	2011-12-31	No
Has the plan failed to provide any benefit when due under the plan	2011-12-31	No
Contributions received in cash from employer	2011-12-31	$2,871,957
Employer contributions (assets) at end of year	2011-12-31	$0
Employer contributions (assets) at beginning of year	2011-12-31	$46,916
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2011-12-31	$1,355,687
Did the plan have assets held for investment	2011-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2011-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2011-12-31	No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2011-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2011-12-31	Disclaimer
Accountancy firm name	2011-12-31	MARCUM, LLP
Accountancy firm EIN	2011-12-31	111986323
2010 : ALEXION PHARMACEUTICALS INC 401K PLAN 2010 401k financial data
Total unrealized appreciation/depreciation of assets	2010-12-31	$0
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	$11,205,092
Total loss/gain on sale of assets	2010-12-31	$0
Total of all expenses incurred	2010-12-31	$2,699,658
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2010-12-31	$2,687,383
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2010-12-31	$7,564,277
Value of total assets at end of year	2010-12-31	$33,361,197
Value of total assets at beginning of year	2010-12-31	$24,855,763
Total of administrative expenses incurred including professional, contract, advisory and management fees	2010-12-31	$12,275
Total interest from all sources	2010-12-31	$14,785
Total dividends received (eg from common stock, registered investment company shares)	2010-12-31	$0
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2010-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2010-12-31	$0
Was this plan covered by a fidelity bond	2010-12-31	Yes
Value of fidelity bond cover	2010-12-31	$500,000
If this is an individual account plan, was there a blackout period	2010-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2010-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2010-12-31	No
Contributions received from participants	2010-12-31	$4,610,138
Participant contributions at end of year	2010-12-31	$498,300
Participant contributions at beginning of year	2010-12-31	$270,203
Participant contributions at end of year	2010-12-31	$112,393
Participant contributions at beginning of year	2010-12-31	$96,373
Income. Received or receivable in cash from other sources (including rollovers)	2010-12-31	$1,061,233
Administrative expenses (other) incurred	2010-12-31	$12,275
Total non interest bearing cash at end of year	2010-12-31	$0
Total non interest bearing cash at beginning of year	2010-12-31	$0
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2010-12-31	No
Value of net income/loss	2010-12-31	$8,505,434
Value of net assets at end of year (total assets less liabilities)	2010-12-31	$33,361,197
Value of net assets at beginning of year (total assets less liabilities)	2010-12-31	$24,855,763
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2010-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2010-12-31	No
Were any leases to which the plan was party in default or uncollectible	2010-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2010-12-31	$32,703,588
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2010-12-31	$0
Value of interest in pooled separate accounts at end of year	2010-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2010-12-31	$24,455,049
Interest on participant loans	2010-12-31	$14,785
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2010-12-31	$0
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2010-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2010-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2010-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2010-12-31	$0
Net investment gain or loss from common/collective trusts	2010-12-31	$3,626,030
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2010-12-31	No
Was there a failure to transmit to the plan any participant contributions	2010-12-31	No
Has the plan failed to provide any benefit when due under the plan	2010-12-31	No
Contributions received in cash from employer	2010-12-31	$1,892,906
Employer contributions (assets) at end of year	2010-12-31	$46,916
Employer contributions (assets) at beginning of year	2010-12-31	$34,138
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2010-12-31	$2,687,383
Did the plan have assets held for investment	2010-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2010-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2010-12-31	No
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2010-12-31	Yes
Opinion of an independent qualified public accountant for this plan	2010-12-31	Disclaimer
Accountancy firm name	2010-12-31	MARCUM, LLP
Accountancy firm EIN	2010-12-31	111986323

Form 5500 Responses for ALEXION PHARMACEUTICALS INC 401K PLAN

2020: ALEXION PHARMACEUTICALS INC 401K PLAN 2020 form 5500 responses
2020-01-01	Type of plan entity	Single employer plan
2020-01-01	This submission is the final filing	No
2020-01-01	Plan is a collectively bargained plan	No
2020-01-01	Plan funding arrangement – Trust	Yes
2020-01-01	Plan benefit arrangement - Trust	Yes
2019: ALEXION PHARMACEUTICALS INC 401K PLAN 2019 form 5500 responses
2019-01-01	Type of plan entity	Single employer plan
2019-01-01	Submission has been amended	No
2019-01-01	This submission is the final filing	No
2019-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2019-01-01	Plan is a collectively bargained plan	No
2019-01-01	Plan funding arrangement – Trust	Yes
2019-01-01	Plan benefit arrangement - Trust	Yes
2018: ALEXION PHARMACEUTICALS INC 401K PLAN 2018 form 5500 responses
2018-01-01	Type of plan entity	Single employer plan
2018-01-01	Submission has been amended	No
2018-01-01	This submission is the final filing	No
2018-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2018-01-01	Plan is a collectively bargained plan	No
2018-01-01	Plan funding arrangement – Trust	Yes
2018-01-01	Plan benefit arrangement - Trust	Yes
2017: ALEXION PHARMACEUTICALS INC 401K PLAN 2017 form 5500 responses
2017-01-01	Type of plan entity	Single employer plan
2017-01-01	Submission has been amended	No
2017-01-01	This submission is the final filing	No
2017-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2017-01-01	Plan is a collectively bargained plan	No
2017-01-01	Plan funding arrangement – Trust	Yes
2017-01-01	Plan benefit arrangement - Trust	Yes
2016: ALEXION PHARMACEUTICALS INC 401K PLAN 2016 form 5500 responses
2016-01-01	Type of plan entity	Single employer plan
2016-01-01	Submission has been amended	No
2016-01-01	This submission is the final filing	No
2016-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2016-01-01	Plan is a collectively bargained plan	No
2016-01-01	Plan funding arrangement – Trust	Yes
2016-01-01	Plan benefit arrangement - Trust	Yes
2015: ALEXION PHARMACEUTICALS INC 401K PLAN 2015 form 5500 responses
2015-01-01	Type of plan entity	Single employer plan
2015-01-01	Submission has been amended	No
2015-01-01	This submission is the final filing	No
2015-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2015-01-01	Plan is a collectively bargained plan	No
2015-01-01	Plan funding arrangement – Insurance	Yes
2015-01-01	Plan funding arrangement – Trust	Yes
2015-01-01	Plan benefit arrangement – Insurance	Yes
2015-01-01	Plan benefit arrangement - Trust	Yes
2014: ALEXION PHARMACEUTICALS INC 401K PLAN 2014 form 5500 responses
2014-01-01	Type of plan entity	Single employer plan
2014-01-01	Submission has been amended	No
2014-01-01	This submission is the final filing	No
2014-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2014-01-01	Plan is a collectively bargained plan	No
2014-01-01	Plan funding arrangement – Insurance	Yes
2014-01-01	Plan funding arrangement – Trust	Yes
2014-01-01	Plan benefit arrangement – Insurance	Yes
2014-01-01	Plan benefit arrangement - Trust	Yes
2013: ALEXION PHARMACEUTICALS INC 401K PLAN 2013 form 5500 responses
2013-01-01	Type of plan entity	Single employer plan
2013-01-01	Submission has been amended	No
2013-01-01	This submission is the final filing	No
2013-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2013-01-01	Plan is a collectively bargained plan	No
2013-01-01	Plan funding arrangement – Insurance	Yes
2013-01-01	Plan funding arrangement – Trust	Yes
2013-01-01	Plan benefit arrangement – Insurance	Yes
2013-01-01	Plan benefit arrangement - Trust	Yes
2012: ALEXION PHARMACEUTICALS INC 401K PLAN 2012 form 5500 responses
2012-01-01	Type of plan entity	Single employer plan
2012-01-01	Submission has been amended	No
2012-01-01	This submission is the final filing	No
2012-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2012-01-01	Plan is a collectively bargained plan	No
2012-01-01	Plan funding arrangement – Insurance	Yes
2012-01-01	Plan funding arrangement – Trust	Yes
2012-01-01	Plan benefit arrangement – Insurance	Yes
2012-01-01	Plan benefit arrangement - Trust	Yes
2011: ALEXION PHARMACEUTICALS INC 401K PLAN 2011 form 5500 responses
2011-01-01	Type of plan entity	Single employer plan
2011-01-01	Submission has been amended	Yes
2011-01-01	This submission is the final filing	No
2011-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2011-01-01	Plan is a collectively bargained plan	No
2011-01-01	Plan funding arrangement – Insurance	Yes
2011-01-01	Plan funding arrangement – Trust	Yes
2011-01-01	Plan benefit arrangement – Insurance	Yes
2011-01-01	Plan benefit arrangement - Trust	Yes
2009: ALEXION PHARMACEUTICALS INC 401K PLAN 2009 form 5500 responses
2009-01-01	Type of plan entity	Single employer plan
2009-01-01	Submission has been amended	No
2009-01-01	This submission is the final filing	No
2009-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2009-01-01	Plan is a collectively bargained plan	No
2009-01-01	Plan funding arrangement – Insurance	Yes
2009-01-01	Plan funding arrangement – Trust	Yes
2009-01-01	Plan benefit arrangement – Insurance	Yes
2009-01-01	Plan benefit arrangement - Trust	Yes

Insurance Providers Used on plan

GREAT-WEST LIFE & ANNUITY INSURANCE COMPANY (National Association of Insurance Commissioners NAIC id number: 68322 )

Policy contract number

385706-01

Policy instance

Insurance contract or identification number	385706-01
Number of Individuals Covered	0
Insurance policy start date	2010-01-01
Insurance policy end date	2010-12-31
Total amount of commissions paid to insurance broker	USD $0
Total amount of fees paid to insurance company	USD $0
Are there contracts with allocated funds for individual policies?	No
Are there contracts with allocated funds for group deferred annuity?	No
Are there contracts with allocated funds for types other than group deferred annuity or individual?	Yes
Contract purchased, in whole or in part, to distribute benefits from a terminating plan	No
Contracts With Unallocated Funds Deposit Administration	0
Are there contracts with unallocated funds for contracts of type immediate participation guarantee?	No
Are there contracts with unallocated funds for contracts of type guaranteed investment?	No
Are there contracts with unallocated funds for contract types other than deposit administration, immediate participation guarantee or guaranteed investment?	No
Health Insurance Welfare Benefit	No
Dental Insurance Welfare Benefit	No
Vision Insurance Welfare Benefit	No
Life Insurance Welfare Benefit	No
Temporary Disability Insurance Welfare Benefit	No
Long Term Disability Insurance Welfare Benefit	No
Unemployment Insurance Welfare Benefit	No
Were dividends or retroactive rate refunds paid in cash?	No
Were dividends or retroactive rate refunds paid as a credit?	No
Did the insurance company fail to provide any information necessary to complete Schedule A of form 5500?	No
Other information about contract	GROUP ANNUITY CONTRACT

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Company Name:	ALEXION PHARMACEUTICALS, INC.
Employer identification number (EIN):	133648318
NAIC Classification:	541700

Jurisdiction of Incorporation:	Texas Secretary of State
Incorporation Date:	2022-11-17
Company Identification Number:	0804821643
Legal Registered Office Address:	100 COLLEGE ST NEW HAVEN United States of America (USA) 06510