401k Plan data: A10 NETWORKS 401(K) PLAN plan

A10 NETWORKS 401(K) PLAN 401k Plan overview

Plan Name	A10 NETWORKS 401(K) PLAN
Plan identification number	001

A10 NETWORKS 401(K) PLAN Benefits

401k Plan Type

Defined Contribution Pension

Plan Features/Benefits

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.

401k Sponsoring company profile

A10 NETWORKS, INC. has sponsored the creation of one or more 401k plans.

Company Name: A10 NETWORKS, INC.

Employer identification number (EIN): 201446869

NAIC Classification: 541513
NAIC Description: Computer Facilities Management Services

Form 5500 Filing Information

Submission information for form 5500 for 401k plan A10 NETWORKS 401(K) PLAN

Plan id# Filing Submission Date Name of Administrator Date Administrator Signed Name of Company Sponsor Date Sponsor Signed
001 2022-01-01
001 2021-01-01
001 2020-01-01
001 2019-01-01
001 2018-01-01
001 2017-01-01 COLLEEN SOLORIO COLLEEN SOLORIO 2018-10-02
001 2016-01-01 COLLEEN TRUMBULL-SOLORIO COLLEEN TRUMBULL-SOLORIO 2017-10-12
001 2015-01-01 ELAINE SITTERSON
001 2014-01-01 DAWN RAMSEY DAWN RAMSEY 2015-10-07
001 2013-01-01 DAWN RAMSEY
001 2012-01-01 RUTH WELCH
001 2011-01-01 JENDI HWANG 2012-06-27
001 2010-01-01 JENDI HWANG 2011-06-28
001 2009-01-01 ALFRED YOUNG

Plan id#	Filing Submission Date	Name of Administrator	Date Administrator Signed	Name of Company Sponsor	Date Sponsor Signed
001	2022-01-01
001	2021-01-01
001	2020-01-01
001	2019-01-01
001	2018-01-01
001	2017-01-01	COLLEEN SOLORIO		COLLEEN SOLORIO	2018-10-02
001	2016-01-01	COLLEEN TRUMBULL-SOLORIO		COLLEEN TRUMBULL-SOLORIO	2017-10-12
001	2015-01-01	ELAINE SITTERSON
001	2014-01-01	DAWN RAMSEY		DAWN RAMSEY	2015-10-07
001	2013-01-01	DAWN RAMSEY
001	2012-01-01	RUTH WELCH
001	2011-01-01	JENDI HWANG	2012-06-27
001	2010-01-01	JENDI HWANG	2011-06-28
001	2009-01-01	ALFRED YOUNG

Plan Statistics for A10 NETWORKS 401(K) PLAN

401k plan membership statisitcs for A10 NETWORKS 401(K) PLAN

Measure Date Value
2022: A10 NETWORKS 401(K) PLAN 2022 401k membership
Total participants, beginning-of-year 2022-01-01 520
Total number of active participants reported on line 7a of the Form 5500 2022-01-01 319
Number of retired or separated participants receiving benefits 2022-01-01 1
Number of other retired or separated participants entitled to future benefits 2022-01-01 220
Total of all active and inactive participants 2022-01-01 540
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2022-01-01 0
Total participants 2022-01-01 540
Number of participants with account balances 2022-01-01 520
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2022-01-01 21
2021: A10 NETWORKS 401(K) PLAN 2021 401k membership
Total participants, beginning-of-year 2021-01-01 529
Total number of active participants reported on line 7a of the Form 5500 2021-01-01 332
Number of retired or separated participants receiving benefits 2021-01-01 1
Number of other retired or separated participants entitled to future benefits 2021-01-01 187
Total of all active and inactive participants 2021-01-01 520
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2021-01-01 0
Total participants 2021-01-01 520
Number of participants with account balances 2021-01-01 490
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2021-01-01 34
2020: A10 NETWORKS 401(K) PLAN 2020 401k membership
Total participants, beginning-of-year 2020-01-01 599
Total number of active participants reported on line 7a of the Form 5500 2020-01-01 347
Number of retired or separated participants receiving benefits 2020-01-01 0
Number of other retired or separated participants entitled to future benefits 2020-01-01 179
Total of all active and inactive participants 2020-01-01 526
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2020-01-01 0
Total participants 2020-01-01 526
Number of participants with account balances 2020-01-01 500
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2020-01-01 39
2019: A10 NETWORKS 401(K) PLAN 2019 401k membership
Total participants, beginning-of-year 2019-01-01 620
Total number of active participants reported on line 7a of the Form 5500 2019-01-01 423
Number of retired or separated participants receiving benefits 2019-01-01 0
Number of other retired or separated participants entitled to future benefits 2019-01-01 169
Total of all active and inactive participants 2019-01-01 592
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2019-01-01 0
Total participants 2019-01-01 592
Number of participants with account balances 2019-01-01 561
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2019-01-01 47
2018: A10 NETWORKS 401(K) PLAN 2018 401k membership
Total participants, beginning-of-year 2018-01-01 599
Total number of active participants reported on line 7a of the Form 5500 2018-01-01 452
Number of retired or separated participants receiving benefits 2018-01-01 0
Number of other retired or separated participants entitled to future benefits 2018-01-01 157
Total of all active and inactive participants 2018-01-01 609
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2018-01-01 0
Total participants 2018-01-01 609
Number of participants with account balances 2018-01-01 563
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2018-01-01 29
2017: A10 NETWORKS 401(K) PLAN 2017 401k membership
Total participants, beginning-of-year 2017-01-01 596
Total number of active participants reported on line 7a of the Form 5500 2017-01-01 486
Number of retired or separated participants receiving benefits 2017-01-01 0
Number of other retired or separated participants entitled to future benefits 2017-01-01 108
Total of all active and inactive participants 2017-01-01 594
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2017-01-01 0
Total participants 2017-01-01 594
Number of participants with account balances 2017-01-01 525
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2017-01-01 50
2016: A10 NETWORKS 401(K) PLAN 2016 401k membership
Total participants, beginning-of-year 2016-01-01 532
Total number of active participants reported on line 7a of the Form 5500 2016-01-01 516
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 70
Total of all active and inactive participants 2016-01-01 586
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2016-01-01 0
Total participants 2016-01-01 586
Number of participants with account balances 2016-01-01 499
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2016-01-01 40
2015: A10 NETWORKS 401(K) PLAN 2015 401k membership
Total participants, beginning-of-year 2015-01-01 471
Total number of active participants reported on line 7a of the Form 5500 2015-01-01 483
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 41
Total of all active and inactive participants 2015-01-01 524
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2015-01-01 0
Total participants 2015-01-01 524
Number of participants with account balances 2015-01-01 413
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2015-01-01 34
2014: A10 NETWORKS 401(K) PLAN 2014 401k membership
Total participants, beginning-of-year 2014-01-01 373
Total number of active participants reported on line 7a of the Form 5500 2014-01-01 433
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 26
Total of all active and inactive participants 2014-01-01 459
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2014-01-01 0
Total participants 2014-01-01 459
Number of participants with account balances 2014-01-01 250
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2014-01-01 0
2013: A10 NETWORKS 401(K) PLAN 2013 401k membership
Total participants, beginning-of-year 2013-01-01 293
Total number of active participants reported on line 7a of the Form 5500 2013-01-01 349
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 24
Total of all active and inactive participants 2013-01-01 373
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2013-01-01 0
Total participants 2013-01-01 373
Number of participants with account balances 2013-01-01 167
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2013-01-01 0
2012: A10 NETWORKS 401(K) PLAN 2012 401k membership
Total participants, beginning-of-year 2012-01-01 193
Total number of active participants reported on line 7a of the Form 5500 2012-01-01 283
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 10
Total of all active and inactive participants 2012-01-01 293
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2012-01-01 0
Total participants 2012-01-01 293
Number of participants with account balances 2012-01-01 118
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2012-01-01 0
2009: A10 NETWORKS 401(K) PLAN 2009 401k membership
Total participants, beginning-of-year 2009-01-01 68
Total number of active participants reported on line 7a of the Form 5500 2009-01-01 78
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 2
Total of all active and inactive participants 2009-01-01 80
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2009-01-01 0
Total participants 2009-01-01 80
Number of participants with account balances 2009-01-01 32
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2009-01-01 0

Measure	Date	Value
2022: A10 NETWORKS 401(K) PLAN 2022 401k membership
Total participants, beginning-of-year	2022-01-01	520
Total number of active participants reported on line 7a of the Form 5500	2022-01-01	319
Number of retired or separated participants receiving benefits	2022-01-01	1
Number of other retired or separated participants entitled to future benefits	2022-01-01	220
Total of all active and inactive participants	2022-01-01	540
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2022-01-01	0
Total participants	2022-01-01	540
Number of participants with account balances	2022-01-01	520
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2022-01-01	21
2021: A10 NETWORKS 401(K) PLAN 2021 401k membership
Total participants, beginning-of-year	2021-01-01	529
Total number of active participants reported on line 7a of the Form 5500	2021-01-01	332
Number of retired or separated participants receiving benefits	2021-01-01	1
Number of other retired or separated participants entitled to future benefits	2021-01-01	187
Total of all active and inactive participants	2021-01-01	520
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2021-01-01	0
Total participants	2021-01-01	520
Number of participants with account balances	2021-01-01	490
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2021-01-01	34
2020: A10 NETWORKS 401(K) PLAN 2020 401k membership
Total participants, beginning-of-year	2020-01-01	599
Total number of active participants reported on line 7a of the Form 5500	2020-01-01	347
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	179
Total of all active and inactive participants	2020-01-01	526
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2020-01-01	0
Total participants	2020-01-01	526
Number of participants with account balances	2020-01-01	500
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2020-01-01	39
2019: A10 NETWORKS 401(K) PLAN 2019 401k membership
Total participants, beginning-of-year	2019-01-01	620
Total number of active participants reported on line 7a of the Form 5500	2019-01-01	423
Number of retired or separated participants receiving benefits	2019-01-01	0
Number of other retired or separated participants entitled to future benefits	2019-01-01	169
Total of all active and inactive participants	2019-01-01	592
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2019-01-01	0
Total participants	2019-01-01	592
Number of participants with account balances	2019-01-01	561
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2019-01-01	47
2018: A10 NETWORKS 401(K) PLAN 2018 401k membership
Total participants, beginning-of-year	2018-01-01	599
Total number of active participants reported on line 7a of the Form 5500	2018-01-01	452
Number of retired or separated participants receiving benefits	2018-01-01	0
Number of other retired or separated participants entitled to future benefits	2018-01-01	157
Total of all active and inactive participants	2018-01-01	609
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2018-01-01	0
Total participants	2018-01-01	609
Number of participants with account balances	2018-01-01	563
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2018-01-01	29
2017: A10 NETWORKS 401(K) PLAN 2017 401k membership
Total participants, beginning-of-year	2017-01-01	596
Total number of active participants reported on line 7a of the Form 5500	2017-01-01	486
Number of retired or separated participants receiving benefits	2017-01-01	0
Number of other retired or separated participants entitled to future benefits	2017-01-01	108
Total of all active and inactive participants	2017-01-01	594
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2017-01-01	0
Total participants	2017-01-01	594
Number of participants with account balances	2017-01-01	525
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2017-01-01	50
2016: A10 NETWORKS 401(K) PLAN 2016 401k membership
Total participants, beginning-of-year	2016-01-01	532
Total number of active participants reported on line 7a of the Form 5500	2016-01-01	516
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	70
Total of all active and inactive participants	2016-01-01	586
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2016-01-01	0
Total participants	2016-01-01	586
Number of participants with account balances	2016-01-01	499
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2016-01-01	40
2015: A10 NETWORKS 401(K) PLAN 2015 401k membership
Total participants, beginning-of-year	2015-01-01	471
Total number of active participants reported on line 7a of the Form 5500	2015-01-01	483
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	41
Total of all active and inactive participants	2015-01-01	524
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2015-01-01	0
Total participants	2015-01-01	524
Number of participants with account balances	2015-01-01	413
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2015-01-01	34
2014: A10 NETWORKS 401(K) PLAN 2014 401k membership
Total participants, beginning-of-year	2014-01-01	373
Total number of active participants reported on line 7a of the Form 5500	2014-01-01	433
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	26
Total of all active and inactive participants	2014-01-01	459
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2014-01-01	0
Total participants	2014-01-01	459
Number of participants with account balances	2014-01-01	250
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2014-01-01	0
2013: A10 NETWORKS 401(K) PLAN 2013 401k membership
Total participants, beginning-of-year	2013-01-01	293
Total number of active participants reported on line 7a of the Form 5500	2013-01-01	349
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	24
Total of all active and inactive participants	2013-01-01	373
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2013-01-01	0
Total participants	2013-01-01	373
Number of participants with account balances	2013-01-01	167
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2013-01-01	0
2012: A10 NETWORKS 401(K) PLAN 2012 401k membership
Total participants, beginning-of-year	2012-01-01	193
Total number of active participants reported on line 7a of the Form 5500	2012-01-01	283
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	10
Total of all active and inactive participants	2012-01-01	293
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2012-01-01	0
Total participants	2012-01-01	293
Number of participants with account balances	2012-01-01	118
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2012-01-01	0
2009: A10 NETWORKS 401(K) PLAN 2009 401k membership
Total participants, beginning-of-year	2009-01-01	68
Total number of active participants reported on line 7a of the Form 5500	2009-01-01	78
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	2
Total of all active and inactive participants	2009-01-01	80
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2009-01-01	0
Total participants	2009-01-01	80
Number of participants with account balances	2009-01-01	32
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2009-01-01	0

Financial Data on A10 NETWORKS 401(K) PLAN

Measure	Date	Value
2022 : A10 NETWORKS 401(K) PLAN 2022 401k financial data
Unrealized appreciation/depreciation of real estate assets	2022-12-31	$0
Unrealized appreciation/depreciation of other (non real estate) assets	2022-12-31	$0
Total unrealized appreciation/depreciation of assets	2022-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2022-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2022-12-31	$0
Expenses. Interest paid	2022-12-31	$0
Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102	2022-12-31	$0
Total income from all sources (including contributions)	2022-12-31	$-1,869,590
Total loss/gain on sale of assets	2022-12-31	$0
Total of all expenses incurred	2022-12-31	$3,658,721
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2022-12-31	$3,468,007
Expenses. Certain deemed distributions of participant loans	2022-12-31	$0
Value of total corrective distributions	2022-12-31	$7,640
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2022-12-31	$5,951,952
Value of total assets at end of year	2022-12-31	$43,770,334
Value of total assets at beginning of year	2022-12-31	$49,298,645
Total of administrative expenses incurred including professional, contract, advisory and management fees	2022-12-31	$183,074
Total income from rents	2022-12-31	$0
Total interest from all sources	2022-12-31	$157,284
Total dividends received (eg from common stock, registered investment company shares)	2022-12-31	$1,072,583
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2022-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2022-12-31	$1,072,583
Assets. Real estate other than employer real property at end of year	2022-12-31	$0
Assets. Real estate other than employer real property at beginning of year	2022-12-31	$0
Administrative expenses professional fees incurred	2022-12-31	$29,957
Assets. Corporate prefeered stocks other than exployer securities at end of year	2022-12-31	$0
Assets. Corporate prefeered stocks other than exployer securities at beginning of year	2022-12-31	$0
Was this plan covered by a fidelity bond	2022-12-31	Yes
Value of fidelity bond cover	2022-12-31	$500,000
If this is an individual account plan, was there a blackout period	2022-12-31	Yes
Were there any nonexempt tranactions with any party-in-interest	2022-12-31	No
Contributions received from participants	2022-12-31	$4,307,033
Participant contributions at end of year	2022-12-31	$251,751
Participant contributions at beginning of year	2022-12-31	$155,592
Participant contributions at end of year	2022-12-31	$0
Participant contributions at beginning of year	2022-12-31	$0
Assets. Other investments not covered elsewhere at end of year	2022-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2022-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2022-12-31	$584,389
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2022-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at end of year	2022-12-31	$0
Value of other receiveables (less allowance for doubtful accounts) at beginning of year	2022-12-31	$0
Assets. Loans (other than to participants) at end of year	2022-12-31	$0
Assets. Loans (other than to participants) at beginning of year	2022-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year	2022-12-31	$0
Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year	2022-12-31	$0
Other income not declared elsewhere	2022-12-31	$0
Administrative expenses (other) incurred	2022-12-31	$5,056
Total non interest bearing cash at end of year	2022-12-31	$0
Total non interest bearing cash at beginning of year	2022-12-31	$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	2022-12-31	No
Income. Non cash contributions	2022-12-31	$0
Value of net income/loss	2022-12-31	$-5,528,311
Value of net assets at end of year (total assets less liabilities)	2022-12-31	$43,770,334
Value of net assets at beginning of year (total assets less liabilities)	2022-12-31	$49,298,645
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2022-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2022-12-31	No
Were any leases to which the plan was party in default or uncollectible	2022-12-31	No
Assets. partnership/joint venture interests at end of year	2022-12-31	$0
Assets. partnership/joint venture interests at beginning of year	2022-12-31	$0
Investment advisory and management fees	2022-12-31	$123,818
Value of interest in registered invesment companies (eg mutual funds) at end of year	2022-12-31	$38,939,011
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2022-12-31	$44,954,821
Interest on participant loans	2022-12-31	$12,168
Income. Interest from loans (other than to participants)	2022-12-31	$0
Interest earned on other investments	2022-12-31	$145,116
Income. Interest from US Government securities	2022-12-31	$0
Income. Interest from corporate debt instruments	2022-12-31	$0
Value of interest in master investment trust accounts at end of year	2022-12-31	$0
Value of interest in master investment trust accounts at beginning of year	2022-12-31	$0
Value of interest in common/collective trusts at end of year	2022-12-31	$0
Value of interest in common/collective trusts at beginning of year	2022-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2022-12-31	$0
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2022-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2022-12-31	$0
Interest earned from interest bearing cash (including money market accounts and certificates of deposit)	2022-12-31	$0
Assets. Value of investments in 103.12 investment entities at end of year	2022-12-31	$0
Assets. Value of investments in 103.12 investment entities at beginning of year	2022-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2022-12-31	$4,579,572
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2022-12-31	$4,188,232
Expenses. Payments to insurance carriers foe the provision of benefits	2022-12-31	$0
Asset value of US Government securities at end of year	2022-12-31	$0
Asset value of US Government securities at beginning of year	2022-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2022-12-31	$-9,051,409
Net investment gain/loss from pooled separate accounts	2022-12-31	$0
Net investment gain or loss from common/collective trusts	2022-12-31	$0
Net gain/loss from 103.12 investment entities	2022-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2022-12-31	No
Was there a failure to transmit to the plan any participant contributions	2022-12-31	No
Has the plan failed to provide any benefit when due under the plan	2022-12-31	No
Assets. Invements in employer securities at end of year	2022-12-31	$0
Assets. Invements in employer securities at beginning of year	2022-12-31	$0
Assets. Value of employer real property at end of year	2022-12-31	$0
Assets. Value of employer real property at beginning of year	2022-12-31	$0
Contributions received in cash from employer	2022-12-31	$1,060,530
Employer contributions (assets) at end of year	2022-12-31	$0
Employer contributions (assets) at beginning of year	2022-12-31	$0
Income. Dividends from preferred stock	2022-12-31	$0
Income. Dividends from common stock	2022-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2022-12-31	$3,468,007
Asset. Corporate debt instrument preferred debt at end of year	2022-12-31	$0
Asset. Corporate debt instrument preferred debt at beginning of year	2022-12-31	$0
Asset. Corporate debt instrument debt (other) at end of year	2022-12-31	$0
Asset. Corporate debt instrument debt (other) at beginning of year	2022-12-31	$0
Contract administrator fees	2022-12-31	$24,243
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	2022-12-31	Yes
Assets. Corporate common stocks other than exployer securities at end of year	2022-12-31	$0
Assets. Corporate common stocks other than exployer securities at beginning of year	2022-12-31	$0
Liabilities. Value of benefit claims payable at end of year	2022-12-31	$0
Liabilities. Value of benefit claims payable at beginning of year	2022-12-31	$0
Assets. Value of buildings and other operty used in plan operation at end of year	2022-12-31	$0
Assets. Value of buildings and other operty used in plan operation at beginning of year	2022-12-31	$0
Did the plan have assets held for investment	2022-12-31	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	2022-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2022-12-31	No
Aggregate proceeds on sale of assets	2022-12-31	$0
Aggregate carrying amount (costs) on sale of assets	2022-12-31	$0
Liabilities. Value of acquisition indebtedness at end of year	2022-12-31	$0
Liabilities. Value of acquisition indebtedness at beginning of year	2022-12-31	$0
Opinion of an independent qualified public accountant for this plan	2022-12-31	Unqualified
Accountancy firm name	2022-12-31	SILICON VALLEY ACCOUNTANCY CORP
Accountancy firm EIN	2022-12-31	770573994
2021 : A10 NETWORKS 401(K) PLAN 2021 401k financial data
Total unrealized appreciation/depreciation of assets	2021-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2021-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2021-12-31	$0
Total income from all sources (including contributions)	2021-12-31	$11,415,344
Total loss/gain on sale of assets	2021-12-31	$0
Total of all expenses incurred	2021-12-31	$7,687,032
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2021-12-31	$7,494,398
Expenses. Certain deemed distributions of participant loans	2021-12-31	$0
Value of total corrective distributions	2021-12-31	$17
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2021-12-31	$4,765,649
Value of total assets at end of year	2021-12-31	$49,298,645
Value of total assets at beginning of year	2021-12-31	$45,570,333
Total of administrative expenses incurred including professional, contract, advisory and management fees	2021-12-31	$192,617
Total interest from all sources	2021-12-31	$138,153
Total dividends received (eg from common stock, registered investment company shares)	2021-12-31	$3,373,403
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2021-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2021-12-31	$3,373,403
Administrative expenses professional fees incurred	2021-12-31	$39,656
Was this plan covered by a fidelity bond	2021-12-31	Yes
Value of fidelity bond cover	2021-12-31	$500,000
If this is an individual account plan, was there a blackout period	2021-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2021-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2021-12-31	No
Contributions received from participants	2021-12-31	$4,019,274
Participant contributions at end of year	2021-12-31	$155,592
Participant contributions at beginning of year	2021-12-31	$241,708
Assets. Other investments not covered elsewhere at end of year	2021-12-31	$0
Assets. Other investments not covered elsewhere at beginning of year	2021-12-31	$0
Income. Received or receivable in cash from other sources (including rollovers)	2021-12-31	$276,671
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2021-12-31	$0
Other income not declared elsewhere	2021-12-31	$0
Administrative expenses (other) incurred	2021-12-31	$1,136
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2021-12-31	No
Value of net income/loss	2021-12-31	$3,728,312
Value of net assets at end of year (total assets less liabilities)	2021-12-31	$49,298,645
Value of net assets at beginning of year (total assets less liabilities)	2021-12-31	$45,570,333
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2021-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2021-12-31	No
Were any leases to which the plan was party in default or uncollectible	2021-12-31	No
Investment advisory and management fees	2021-12-31	$146,567
Value of interest in registered invesment companies (eg mutual funds) at end of year	2021-12-31	$44,954,821
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2021-12-31	$42,099,370
Value of interest in pooled separate accounts at end of year	2021-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2021-12-31	$0
Interest on participant loans	2021-12-31	$10,971
Interest earned on other investments	2021-12-31	$127,182
Value of interest in common/collective trusts at end of year	2021-12-31	$0
Value of interest in common/collective trusts at beginning of year	2021-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2021-12-31	$4,188,232
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2021-12-31	$3,229,255
Expenses. Payments to insurance carriers foe the provision of benefits	2021-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2021-12-31	$3,138,139
Net investment gain/loss from pooled separate accounts	2021-12-31	$0
Net investment gain or loss from common/collective trusts	2021-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2021-12-31	No
Was there a failure to transmit to the plan any participant contributions	2021-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2021-12-31	No
Assets. Invements in employer securities at end of year	2021-12-31	$0
Assets. Invements in employer securities at beginning of year	2021-12-31	$0
Contributions received in cash from employer	2021-12-31	$469,704
Income. Dividends from common stock	2021-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2021-12-31	$7,494,398
Contract administrator fees	2021-12-31	$5,258
Did the plan have assets held for investment	2021-12-31	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	2021-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2021-12-31	No
Opinion of an independent qualified public accountant for this plan	2021-12-31	Unqualified
Accountancy firm name	2021-12-31	SILICON VALLEY ACCOUNTANCY CORP
Accountancy firm EIN	2021-12-31	770573994
2020 : A10 NETWORKS 401(K) PLAN 2020 401k financial data
Total unrealized appreciation/depreciation of assets	2020-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$0
Total income from all sources (including contributions)	2020-12-31	$10,359,283
Total loss/gain on sale of assets	2020-12-31	$0
Total of all expenses incurred	2020-12-31	$6,946,551
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2020-12-31	$6,771,739
Expenses. Certain deemed distributions of participant loans	2020-12-31	$0
Value of total corrective distributions	2020-12-31	$394
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2020-12-31	$4,271,962
Value of total assets at end of year	2020-12-31	$45,570,333
Value of total assets at beginning of year	2020-12-31	$42,157,601
Total of administrative expenses incurred including professional, contract, advisory and management fees	2020-12-31	$174,418
Total interest from all sources	2020-12-31	$162,946
Total dividends received (eg from common stock, registered investment company shares)	2020-12-31	$1,131,689
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	$1,131,689
Administrative expenses professional fees incurred	2020-12-31	$28,780
Was this plan covered by a fidelity bond	2020-12-31	Yes
Value of fidelity bond cover	2020-12-31	$500,000
If this is an individual account plan, was there a blackout period	2020-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2020-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2020-12-31	No
Contributions received from participants	2020-12-31	$3,843,039
Participant contributions at end of year	2020-12-31	$241,708
Participant contributions at beginning of year	2020-12-31	$262,494
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	$67,855
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2020-12-31	$0
Other income not declared elsewhere	2020-12-31	$0
Administrative expenses (other) incurred	2020-12-31	$13,474
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
Value of net income/loss	2020-12-31	$3,412,732
Value of net assets at end of year (total assets less liabilities)	2020-12-31	$45,570,333
Value of net assets at beginning of year (total assets less liabilities)	2020-12-31	$42,157,601
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
Investment advisory and management fees	2020-12-31	$126,005
Value of interest in registered invesment companies (eg mutual funds) at end of year	2020-12-31	$42,077,128
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2020-12-31	$38,567,263
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	$16,033
Interest earned on other investments	2020-12-31	$146,913
Value of interest in common/collective trusts at end of year	2020-12-31	$0
Value of interest in common/collective trusts at beginning of year	2020-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2020-12-31	$22,242
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2020-12-31	$3,229,255
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2020-12-31	$3,327,844
Expenses. Payments to insurance carriers foe the provision of benefits	2020-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2020-12-31	$4,792,686
Net investment gain/loss from pooled separate accounts	2020-12-31	$0
Net investment gain or loss from common/collective trusts	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	Yes
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
Contributions received in cash from employer	2020-12-31	$361,068
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	$6,771,739
Contract administrator fees	2020-12-31	$6,159
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
Opinion of an independent qualified public accountant for this plan	2020-12-31	Unqualified
Accountancy firm name	2020-12-31	SILICON VALLEY ACCOUNTANCY
Accountancy firm EIN	2020-12-31	770573994
2019 : A10 NETWORKS 401(K) PLAN 2019 401k financial data
Total unrealized appreciation/depreciation of assets	2019-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$0
Total income from all sources (including contributions)	2019-12-31	$13,188,259
Total loss/gain on sale of assets	2019-12-31	$0
Total of all expenses incurred	2019-12-31	$4,348,640
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2019-12-31	$4,169,559
Expenses. Certain deemed distributions of participant loans	2019-12-31	$0
Value of total corrective distributions	2019-12-31	$15,192
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2019-12-31	$5,470,139
Value of total assets at end of year	2019-12-31	$42,157,601
Value of total assets at beginning of year	2019-12-31	$33,317,982
Total of administrative expenses incurred including professional, contract, advisory and management fees	2019-12-31	$163,889
Total interest from all sources	2019-12-31	$136,822
Total dividends received (eg from common stock, registered investment company shares)	2019-12-31	$1,144,570
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	$1,144,570
Administrative expenses professional fees incurred	2019-12-31	$20,603
Was this plan covered by a fidelity bond	2019-12-31	Yes
Value of fidelity bond cover	2019-12-31	$500,000
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	$4,487,763
Participant contributions at end of year	2019-12-31	$262,494
Participant contributions at beginning of year	2019-12-31	$234,396
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	$301,670
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2019-12-31	$0
Other income not declared elsewhere	2019-12-31	$0
Administrative expenses (other) incurred	2019-12-31	$13,339
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
Value of net income/loss	2019-12-31	$8,839,619
Value of net assets at end of year (total assets less liabilities)	2019-12-31	$42,157,601
Value of net assets at beginning of year (total assets less liabilities)	2019-12-31	$33,317,982
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
Investment advisory and management fees	2019-12-31	$121,253
Value of interest in registered invesment companies (eg mutual funds) at end of year	2019-12-31	$38,567,263
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2019-12-31	$30,447,987
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	$16,116
Interest earned on other investments	2019-12-31	$120,706
Value of interest in common/collective trusts at end of year	2019-12-31	$0
Value of interest in common/collective trusts at beginning of year	2019-12-31	$0
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2019-12-31	$3,327,844
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2019-12-31	$2,635,599
Expenses. Payments to insurance carriers foe the provision of benefits	2019-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2019-12-31	$6,436,728
Net investment gain/loss from pooled separate accounts	2019-12-31	$0
Net investment gain or loss from common/collective trusts	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
Contributions received in cash from employer	2019-12-31	$680,706
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	$4,169,559
Contract administrator fees	2019-12-31	$8,694
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
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	SILICON VALLEY ACCOUNTANCY
Accountancy firm EIN	2019-12-31	770573994
2018 : A10 NETWORKS 401(K) PLAN 2018 401k financial data
Total unrealized appreciation/depreciation of assets	2018-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$0
Total income from all sources (including contributions)	2018-12-31	$6,437,571
Total loss/gain on sale of assets	2018-12-31	$0
Total of all expenses incurred	2018-12-31	$3,942,997
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2018-12-31	$3,789,221
Expenses. Certain deemed distributions of participant loans	2018-12-31	$3,344
Value of total corrective distributions	2018-12-31	$4,344
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2018-12-31	$8,575,564
Value of total assets at end of year	2018-12-31	$33,317,982
Value of total assets at beginning of year	2018-12-31	$30,823,408
Total of administrative expenses incurred including professional, contract, advisory and management fees	2018-12-31	$146,088
Total interest from all sources	2018-12-31	$67,876
Total dividends received (eg from common stock, registered investment company shares)	2018-12-31	$1,176,092
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	$1,176,092
Administrative expenses professional fees incurred	2018-12-31	$11,000
Was this plan covered by a fidelity bond	2018-12-31	Yes
Value of fidelity bond cover	2018-12-31	$500,000
If this is an individual account plan, was there a blackout period	2018-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2018-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2018-12-31	No
Contributions received from participants	2018-12-31	$4,876,877
Participant contributions at end of year	2018-12-31	$234,396
Participant contributions at beginning of year	2018-12-31	$398,222
Income. Received or receivable in cash from other sources (including rollovers)	2018-12-31	$2,725,564
Administrative expenses (other) incurred	2018-12-31	$25,228
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
Value of net income/loss	2018-12-31	$2,494,574
Value of net assets at end of year (total assets less liabilities)	2018-12-31	$33,317,982
Value of net assets at beginning of year (total assets less liabilities)	2018-12-31	$30,823,408
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
Investment advisory and management fees	2018-12-31	$102,301
Value of interest in registered invesment companies (eg mutual funds) at end of year	2018-12-31	$30,447,987
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2018-12-31	$30,425,186
Interest on participant loans	2018-12-31	$16,233
Interest earned on other investments	2018-12-31	$51,643
Value of funds held in insurance company general accounts (unallocated contracts) at end of year	2018-12-31	$2,635,599
Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year	2018-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2018-12-31	$-3,381,961
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2018-12-31	Yes
Was there a failure to transmit to the plan any participant contributions	2018-12-31	No
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
Contributions received in cash from employer	2018-12-31	$973,123
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2018-12-31	$3,789,221
Contract administrator fees	2018-12-31	$7,559
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
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	SILICON VALLEY ACCOUNTANCY CORPORAT
Accountancy firm EIN	2018-12-31	770573994
2017 : A10 NETWORKS 401(K) PLAN 2017 401k financial data
Total unrealized appreciation/depreciation of assets	2017-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$0
Total income from all sources (including contributions)	2017-12-31	$10,881,059
Total loss/gain on sale of assets	2017-12-31	$0
Total of all expenses incurred	2017-12-31	$2,108,303
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2017-12-31	$1,998,969
Expenses. Certain deemed distributions of participant loans	2017-12-31	$0
Value of total corrective distributions	2017-12-31	$5,724
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2017-12-31	$6,563,042
Value of total assets at end of year	2017-12-31	$30,823,408
Value of total assets at beginning of year	2017-12-31	$22,050,652
Total of administrative expenses incurred including professional, contract, advisory and management fees	2017-12-31	$103,610
Total interest from all sources	2017-12-31	$19,640
Total dividends received (eg from common stock, registered investment company shares)	2017-12-31	$859,513
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	$859,513
Administrative expenses professional fees incurred	2017-12-31	$12,000
Was this plan covered by a fidelity bond	2017-12-31	Yes
Value of fidelity bond cover	2017-12-31	$500,000
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	$4,858,767
Participant contributions at end of year	2017-12-31	$398,222
Participant contributions at beginning of year	2017-12-31	$346,251
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	$732,864
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2017-12-31	$0
Other income not declared elsewhere	2017-12-31	$0
Administrative expenses (other) incurred	2017-12-31	$26,865
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
Value of net income/loss	2017-12-31	$8,772,756
Value of net assets at end of year (total assets less liabilities)	2017-12-31	$30,823,408
Value of net assets at beginning of year (total assets less liabilities)	2017-12-31	$22,050,652
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
Investment advisory and management fees	2017-12-31	$60,305
Value of interest in registered invesment companies (eg mutual funds) at end of year	2017-12-31	$30,425,186
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2017-12-31	$21,704,401
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	$19,640
Interest earned on other investments	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
Expenses. Payments to insurance carriers foe the provision of benefits	2017-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2017-12-31	$3,438,864
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
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
Contributions received in cash from employer	2017-12-31	$971,411
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	$1,998,969
Contract administrator fees	2017-12-31	$4,440
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
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	SILICON VALLEY ACCOUNTANCY CORP.
Accountancy firm EIN	2017-12-31	770573994
2016 : A10 NETWORKS 401(K) PLAN 2016 401k financial data
Total unrealized appreciation/depreciation of assets	2016-12-31	$0
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$0
Total income from all sources (including contributions)	2016-12-31	$8,992,749
Total loss/gain on sale of assets	2016-12-31	$0
Total of all expenses incurred	2016-12-31	$1,072,321
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2016-12-31	$1,017,262
Expenses. Certain deemed distributions of participant loans	2016-12-31	$0
Value of total corrective distributions	2016-12-31	$1,939
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2016-12-31	$7,192,848
Value of total assets at end of year	2016-12-31	$22,050,652
Value of total assets at beginning of year	2016-12-31	$14,130,224
Total of administrative expenses incurred including professional, contract, advisory and management fees	2016-12-31	$53,120
Total interest from all sources	2016-12-31	$17,072
Total dividends received (eg from common stock, registered investment company shares)	2016-12-31	$516,980
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	$516,980
Administrative expenses professional fees incurred	2016-12-31	$6,386
Was this plan covered by a fidelity bond	2016-12-31	Yes
Value of fidelity bond cover	2016-12-31	$500,000
If this is an individual account plan, was there a blackout period	2016-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2016-12-31	$0
Were there any nonexempt tranactions with any party-in-interest	2016-12-31	No
Contributions received from participants	2016-12-31	$4,619,536
Participant contributions at end of year	2016-12-31	$346,251
Participant contributions at beginning of year	2016-12-31	$241,125
Participant contributions at beginning of year	2016-12-31	$118,172
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	$1,637,958
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2016-12-31	$0
Other income not declared elsewhere	2016-12-31	$0
Administrative expenses (other) incurred	2016-12-31	$3,602
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
Value of net income/loss	2016-12-31	$7,920,428
Value of net assets at end of year (total assets less liabilities)	2016-12-31	$22,050,652
Value of net assets at beginning of year (total assets less liabilities)	2016-12-31	$14,130,224
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
Investment advisory and management fees	2016-12-31	$39,417
Value of interest in registered invesment companies (eg mutual funds) at end of year	2016-12-31	$20,594,594
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2016-12-31	$13,204,033
Interest on participant loans	2016-12-31	$17,072
Interest earned on other investments	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	$1,109,807
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2016-12-31	$549,662
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2016-12-31	$549,662
Expenses. Payments to insurance carriers foe the provision of benefits	2016-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2016-12-31	$1,265,849
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
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	No
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
Contributions received in cash from employer	2016-12-31	$935,354
Employer contributions (assets) at beginning of year	2016-12-31	$17,232
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	$1,017,262
Contract administrator fees	2016-12-31	$3,715
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
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	SENSIBA SAN FLIPPO LLP
Accountancy firm EIN	2016-12-31	942370906
2015 : A10 NETWORKS 401(K) 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	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$0
Total income from all sources (including contributions)	2015-12-31	$5,240,192
Total loss/gain on sale of assets	2015-12-31	$0
Total of all expenses incurred	2015-12-31	$1,110,410
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2015-12-31	$1,072,394
Expenses. Certain deemed distributions of participant loans	2015-12-31	$0
Value of total corrective distributions	2015-12-31	$4,390
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2015-12-31	$5,427,494
Value of total assets at end of year	2015-12-31	$14,130,224
Value of total assets at beginning of year	2015-12-31	$10,000,442
Total of administrative expenses incurred including professional, contract, advisory and management fees	2015-12-31	$33,626
Total interest from all sources	2015-12-31	$14,816
Total dividends received (eg from common stock, registered investment company shares)	2015-12-31	$540,100
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	$540,100
Administrative expenses professional fees incurred	2015-12-31	$2,180
Was this plan covered by a fidelity bond	2015-12-31	Yes
Value of fidelity bond cover	2015-12-31	$500,000
If this is an individual account plan, was there a blackout period	2015-12-31	No
Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities	2015-12-31	$0
Funding deficiency by the employer to the plan for this plan year	2015-12-31	$0
Minimum employer required contribution for this plan year	2015-12-31	$0
Amount contributed by the employer to the plan for this plan year	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	$3,966,243
Participant contributions at end of year	2015-12-31	$241,125
Participant contributions at beginning of year	2015-12-31	$267,514
Participant contributions at end of year	2015-12-31	$118,172
Participant contributions at beginning of year	2015-12-31	$84,649
Income. Received or receivable in cash from other sources (including rollovers)	2015-12-31	$684,331
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2015-12-31	$0
Other income not declared elsewhere	2015-12-31	$0
Administrative expenses (other) incurred	2015-12-31	$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	2015-12-31	No
Value of net income/loss	2015-12-31	$4,129,782
Value of net assets at end of year (total assets less liabilities)	2015-12-31	$14,130,224
Value of net assets at beginning of year (total assets less liabilities)	2015-12-31	$10,000,442
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
Investment advisory and management fees	2015-12-31	$27,546
Value of interest in registered invesment companies (eg mutual funds) at end of year	2015-12-31	$13,204,033
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2015-12-31	$9,134,562
Value of interest in pooled separate accounts at end of year	2015-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2015-12-31	$0
Interest on participant loans	2015-12-31	$14,816
Interest earned on other investments	2015-12-31	$0
Value of interest in common/collective trusts at end of year	2015-12-31	$0
Value of interest in common/collective trusts at beginning of year	2015-12-31	$0
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2015-12-31	$549,662
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2015-12-31	$513,717
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2015-12-31	$513,717
Expenses. Payments to insurance carriers foe the provision of benefits	2015-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2015-12-31	$-742,218
Net investment gain/loss from pooled separate accounts	2015-12-31	$0
Net investment gain or loss from common/collective trusts	2015-12-31	$0
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
Assets. Invements in employer securities at end of year	2015-12-31	$0
Assets. Invements in employer securities at beginning of year	2015-12-31	$0
Contributions received in cash from employer	2015-12-31	$776,920
Employer contributions (assets) at end of year	2015-12-31	$17,232
Income. Dividends from common stock	2015-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2015-12-31	$1,072,394
Contract administrator fees	2015-12-31	$3,900
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	SENSIBA SAN FILIPPO LLP
Accountancy firm EIN	2015-12-31	942370906
2014 : A10 NETWORKS 401(K) 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	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$0
Total income from all sources (including contributions)	2014-12-31	$4,189,910
Total loss/gain on sale of assets	2014-12-31	$0
Total of all expenses incurred	2014-12-31	$1,035,505
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2014-12-31	$1,028,588
Expenses. Certain deemed distributions of participant loans	2014-12-31	$0
Value of total corrective distributions	2014-12-31	$246
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2014-12-31	$3,721,497
Value of total assets at end of year	2014-12-31	$10,000,442
Value of total assets at beginning of year	2014-12-31	$6,846,037
Total of administrative expenses incurred including professional, contract, advisory and management fees	2014-12-31	$6,671
Total interest from all sources	2014-12-31	$12,854
Total dividends received (eg from common stock, registered investment company shares)	2014-12-31	$322,575
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	$322,575
Administrative expenses professional fees incurred	2014-12-31	$0
Was this plan covered by a fidelity bond	2014-12-31	Yes
Value of fidelity bond cover	2014-12-31	$500,000
If this is an individual account plan, was there a blackout period	2014-12-31	Yes
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	$2,741,965
Participant contributions at end of year	2014-12-31	$267,514
Participant contributions at beginning of year	2014-12-31	$169,094
Participant contributions at end of year	2014-12-31	$84,649
Participant contributions at beginning of year	2014-12-31	$58,361
Income. Received or receivable in cash from other sources (including rollovers)	2014-12-31	$979,532
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2014-12-31	$0
Other income not declared elsewhere	2014-12-31	$0
Administrative expenses (other) incurred	2014-12-31	$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	2014-12-31	No
Value of net income/loss	2014-12-31	$3,154,405
Value of net assets at end of year (total assets less liabilities)	2014-12-31	$10,000,442
Value of net assets at beginning of year (total assets less liabilities)	2014-12-31	$6,846,037
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
Investment advisory and management fees	2014-12-31	$5,741
Value of interest in registered invesment companies (eg mutual funds) at end of year	2014-12-31	$9,134,562
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2014-12-31	$5,584,131
Value of interest in pooled separate accounts at end of year	2014-12-31	$0
Value of interest in pooled separate accounts at beginning of year	2014-12-31	$0
Interest on participant loans	2014-12-31	$12,854
Interest earned on other investments	2014-12-31	$0
Value of interest in common/collective trusts at end of year	2014-12-31	$0
Value of interest in common/collective trusts at beginning of year	2014-12-31	$491,551
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2014-12-31	$513,717
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2014-12-31	$542,900
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2014-12-31	$542,900
Expenses. Payments to insurance carriers foe the provision of benefits	2014-12-31	$0
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2014-12-31	$132,984
Net investment gain/loss from pooled separate accounts	2014-12-31	$0
Net investment gain or loss from common/collective trusts	2014-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2014-12-31	Yes
Was there a failure to transmit to the plan any participant contributions	2014-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2014-12-31	No
Assets. Invements in employer securities at end of year	2014-12-31	$0
Assets. Invements in employer securities at beginning of year	2014-12-31	$0
Contributions received in cash from employer	2014-12-31	$0
Income. Dividends from common stock	2014-12-31	$0
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2014-12-31	$1,028,588
Contract administrator fees	2014-12-31	$930
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	2014-12-31	Yes
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	SENSIBA SAN FILIPPO LLP
Accountancy firm EIN	2014-12-31	942370906
2013 : A10 NETWORKS 401(K) 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	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$0
Total income from all sources (including contributions)	2013-12-31	$3,130,570
Total loss/gain on sale of assets	2013-12-31	$0
Total of all expenses incurred	2013-12-31	$332,876
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2013-12-31	$311,271
Expenses. Certain deemed distributions of participant loans	2013-12-31	$11,756
Value of total corrective distributions	2013-12-31	$4,619
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2013-12-31	$2,184,682
Value of total assets at end of year	2013-12-31	$6,846,037
Value of total assets at beginning of year	2013-12-31	$4,048,343
Total of administrative expenses incurred including professional, contract, advisory and management fees	2013-12-31	$5,230
Total interest from all sources	2013-12-31	$4,756
Total dividends received (eg from common stock, registered investment company shares)	2013-12-31	$182,366
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	$182,366
Was this plan covered by a fidelity bond	2013-12-31	Yes
Value of fidelity bond cover	2013-12-31	$405,000
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	$1,944,850
Participant contributions at end of year	2013-12-31	$169,094
Participant contributions at beginning of year	2013-12-31	$98,027
Participant contributions at end of year	2013-12-31	$58,361
Income. Received or receivable in cash from other sources (including rollovers)	2013-12-31	$239,832
Other income not declared elsewhere	2013-12-31	$5,230
Administrative expenses (other) incurred	2013-12-31	$5,230
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	$2,797,694
Value of net assets at end of year (total assets less liabilities)	2013-12-31	$6,846,037
Value of net assets at beginning of year (total assets less liabilities)	2013-12-31	$4,048,343
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	$5,584,131
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2013-12-31	$2,495,904
Interest on participant loans	2013-12-31	$4,756
Value of interest in common/collective trusts at end of year	2013-12-31	$491,551
Value of interest in common/collective trusts at beginning of year	2013-12-31	$1,162,663
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2013-12-31	$542,900
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2013-12-31	$291,749
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2013-12-31	$291,749
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2013-12-31	$627,897
Net investment gain or loss from common/collective trusts	2013-12-31	$125,639
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
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2013-12-31	$311,271
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	SENSIBA SAN FILIPPO
Accountancy firm EIN	2013-12-31	942370906
2012 : A10 NETWORKS 401(K) 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	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$0
Total income from all sources (including contributions)	2012-12-31	$1,817,305
Total loss/gain on sale of assets	2012-12-31	$0
Total of all expenses incurred	2012-12-31	$296,308
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2012-12-31	$294,225
Value of total corrective distributions	2012-12-31	$2,083
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2012-12-31	$1,464,828
Value of total assets at end of year	2012-12-31	$4,048,343
Value of total assets at beginning of year	2012-12-31	$2,527,346
Total of administrative expenses incurred including professional, contract, advisory and management fees	2012-12-31	$0
Total interest from all sources	2012-12-31	$929
Total dividends received (eg from common stock, registered investment company shares)	2012-12-31	$89,616
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	$89,616
Was this plan covered by a fidelity bond	2012-12-31	Yes
Value of fidelity bond cover	2012-12-31	$253,000
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	$1,290,197
Participant contributions at end of year	2012-12-31	$98,027
Participant contributions at beginning of year	2012-12-31	$51,015
Income. Received or receivable in cash from other sources (including rollovers)	2012-12-31	$174,631
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	$1,520,997
Value of net assets at end of year (total assets less liabilities)	2012-12-31	$4,048,343
Value of net assets at beginning of year (total assets less liabilities)	2012-12-31	$2,527,346
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	$2,495,904
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2012-12-31	$1,486,374
Interest on participant loans	2012-12-31	$929
Value of interest in common/collective trusts at end of year	2012-12-31	$1,162,663
Value of interest in common/collective trusts at beginning of year	2012-12-31	$769,739
Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year	2012-12-31	$291,749
Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year	2012-12-31	$220,218
Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year	2012-12-31	$220,218
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2012-12-31	$137,010
Net investment gain or loss from common/collective trusts	2012-12-31	$124,922
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
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2012-12-31	$294,225
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	SENSIBA SAN FILIPPO
Accountancy firm EIN	2012-12-31	942370906

Form 5500 Responses for A10 NETWORKS 401(K) PLAN

2022: A10 NETWORKS 401(K) PLAN 2022 form 5500 responses
2022-01-01	Type of plan entity	Single employer plan
2022-01-01	Submission has been amended	No
2022-01-01	This submission is the final filing	No
2022-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2022-01-01	Plan is a collectively bargained plan	No
2022-01-01	Plan funding arrangement – Insurance	Yes
2022-01-01	Plan funding arrangement – Trust	Yes
2022-01-01	Plan benefit arrangement – Insurance	Yes
2022-01-01	Plan benefit arrangement - Trust	Yes
2021: A10 NETWORKS 401(K) PLAN 2021 form 5500 responses
2021-01-01	Type of plan entity	Single employer plan
2021-01-01	Submission has been amended	No
2021-01-01	This submission is the final filing	No
2021-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2021-01-01	Plan is a collectively bargained plan	No
2021-01-01	Plan funding arrangement – Insurance	Yes
2021-01-01	Plan funding arrangement – Trust	Yes
2021-01-01	Plan benefit arrangement – Insurance	Yes
2021-01-01	Plan benefit arrangement - Trust	Yes
2020: A10 NETWORKS 401(K) PLAN 2020 form 5500 responses
2020-01-01	Type of plan entity	Single employer plan
2020-01-01	Submission has been amended	No
2020-01-01	This submission is the final filing	No
2020-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2020-01-01	Plan is a collectively bargained plan	No
2020-01-01	Plan funding arrangement – Insurance	Yes
2020-01-01	Plan funding arrangement – Trust	Yes
2020-01-01	Plan benefit arrangement – Insurance	Yes
2020-01-01	Plan benefit arrangement - Trust	Yes
2019: A10 NETWORKS 401(K) 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 – Insurance	Yes
2019-01-01	Plan funding arrangement – Trust	Yes
2019-01-01	Plan benefit arrangement – Insurance	Yes
2019-01-01	Plan benefit arrangement - Trust	Yes
2018: A10 NETWORKS 401(K) 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 – Insurance	Yes
2018-01-01	Plan funding arrangement – Trust	Yes
2018-01-01	Plan benefit arrangement – Insurance	Yes
2018-01-01	Plan benefit arrangement - Trust	Yes
2017: A10 NETWORKS 401(K) PLAN 2017 form 5500 responses
2017-01-01	Type of plan entity	Single employer plan
2017-01-01	Submission has been amended	Yes
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 – Insurance	Yes
2017-01-01	Plan funding arrangement – Trust	Yes
2017-01-01	Plan benefit arrangement – Insurance	Yes
2017-01-01	Plan benefit arrangement - Trust	Yes
2016: A10 NETWORKS 401(K) 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: A10 NETWORKS 401(K) 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 – Trust	Yes
2015-01-01	Plan benefit arrangement - Trust	Yes
2014: A10 NETWORKS 401(K) 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 – Trust	Yes
2014-01-01	Plan benefit arrangement - Trust	Yes
2013: A10 NETWORKS 401(K) 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 – Trust	Yes
2013-01-01	Plan benefit arrangement - Trust	Yes
2012: A10 NETWORKS 401(K) 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 – Trust	Yes
2012-01-01	Plan benefit arrangement - Trust	Yes
2009: A10 NETWORKS 401(K) 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 – Trust	Yes
2009-01-01	Plan benefit arrangement - Trust	Yes

Insurance Providers Used on plan

MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY (National Association of Insurance Commissioners NAIC id number: 65935 )

Policy contract number

780738-01

Policy instance

Insurance contract or identification number	780738-01
Number of Individuals Covered	94
Insurance policy start date	2022-01-01
Insurance policy end date	2022-12-31
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?	0
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?	No
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?	Yes
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

MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY (National Association of Insurance Commissioners NAIC id number: 65935 )

Policy contract number

MR 61425

Policy instance

Insurance contract or identification number	MR 61425
Number of Individuals Covered	520
Insurance policy start date	2021-01-01
Insurance policy end date	2021-12-31
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?	0
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?	No
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?	Yes
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

MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY (National Association of Insurance Commissioners NAIC id number: 65935 )

Policy contract number

MR 61425

Policy instance

Insurance contract or identification number	MR 61425
Number of Individuals Covered	526
Insurance policy start date	2020-01-01
Insurance policy end date	2020-12-31
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?	0
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?	No
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?	Yes
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

MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY (National Association of Insurance Commissioners NAIC id number: 65935 )

Policy contract number

MR 61425

Policy instance

Insurance contract or identification number	MR 61425
Number of Individuals Covered	592
Insurance policy start date	2019-01-01
Insurance policy end date	2019-12-31
Are there contracts with allocated funds for individual policies?	0
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?	No
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?	Yes
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

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Company Name:	A10 NETWORKS, INC.
Employer identification number (EIN):	201446869
NAIC Classification:	541513
NAIC Description:	Computer Facilities Management Services