401(k) · DOL Form 5500 · 2023

Alkermes, Inc. 401(k) Plan

Data updated 2026-08-11

$423M
Total assets: 1,808
Participants: 97th
Percentile by assets: $233,998
Avg per participant

Official DOL plan name: Alkermes, Inc. 401(k) Retirement Savings Plan · Sponsored by Alkermes, Inc. · Massachusetts · Professional & Technical Services

$423M in assets, 1,808 participants

Alkermes, Inc.'s Alkermes, Inc. 401(k) Retirement Savings Plan reported $423M in total assets and 1,808 participants in its 2023 DOL Form 5500 filing, ranking in the 97th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

97th percentile by assets (of 127,072 plans)
#19,894 in Professional & Technical Services (20,321 peers)

Coverage in Massachusetts

Alkermes, Inc. 401(k) Retirement Savings Plan covers 1,808 participants in Massachusetts, 2.7x the typical Massachusetts plan (state average ~659 per filing). Assets: $423M.

$423M
total plan assets (2023 EOY): 1,808
covered participants: 97th
percentile by assets (of 127,072 plans): $233,998
avg assets per participant

Alkermes, Inc. 401(k) Retirement Savings Plan reported net income rose from -$55M in the plan year 2022 filing to $63M in the plan year 2023 filing.
Alkermes, Inc. 401(k) Retirement Savings Plan end-of-year assets rose from $360M in the plan year 2022 filing to $423M in the plan year 2023 filing.
Alkermes, Inc. 401(k) Retirement Savings Plan reported participants rose from 1,775 in the plan year 2022 filing to 1,808 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State

Massachusetts

Industry

Professional & Technical Services

Participants vs Massachusetts filers

In Massachusetts, the average filing covers about 659 participants across 4,265 plans. Alkermes, Inc. 401(k) Retirement Savings Plan reports 1,808 participants - 2.7x that state average ($423M EOY assets).

Massachusetts filing particulars

Total Assets (Beginning of Year)	$360M
Net Assets (End of Year)	$423M
Net Income	$63M
Employer EIN	232472830
Plan Effective Date	2012-03-31
Filing Status	FILING RECEIVED

Sponsor Plan History (Alkermes, Inc.)

Total plan assets by year, all Alkermes, Inc. plans on file

Year	Plans	Participants	Total Assets
2022	1	1,775	$360M
2023	1	1,808	$423M
2024	1	1,673	$480M

Nearby 401(k) Plans in Massachusetts

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Alkermes, Inc. 401(k) Retirement Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants

Fidelity Retirement Savings Plan $28.6B · 62,289
Liberty Mutual 401(k) Plan $10.6B · 37,052
Massachusetts Institute of Technology Supplemental 401(k) Plan $6.8B · 14,094
Boston Scientific Corporation 401(k) Retirement Savings Plan $5.8B · 19,881
Philips North America 401(k) Plan $5.8B · 19,120

Compare Alkermes, Inc. 401(k) Retirement Savings… side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Alkermes, Inc. 401(k) Retirement Savings Plan by total assets, not by location.

Rite-Hite Retirement Savings Plan (WI) $423M · 2,054
Molson Coors Consolidated Retirement and Thrift Savings Plan (WI) $423M · 1,960
Here North America, LLC Retirement Savings and Investment Plan (IL) $423M · 903
Rivian, LLC 401(k) Plan (CA) $423M · 13,961

Frequently Asked Questions

How did Alkermes, Inc. 401(k) Retirement Savings Plan assets move in 2023? ▼

Alkermes, Inc. 401(k) Retirement Savings Plan grew sharply - up 17.5% during 2023, from $360M to $423M. Reported net income was $63M.

How have Alkermes, Inc. plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Alkermes, Inc.'s sponsor-wide assets grew 33.4%, from $360M to $480M.

Where does Alkermes, Inc. 401(k) Retirement Savings Plan rank by assets among Form 5500 filers? ▼

Alkermes, Inc. 401(k) Retirement Savings Plan ranks in the 97th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).

Which 401(k) plans are similar in size to Alkermes, Inc. 401(k) Retirement Savings Plan? ▼

Among 401(k) plans in other states, the closest by assets is Rite-Hite Retirement Savings Plan in WI ($423M, 2,054 participants).

Next read for Alkermes, Inc. 401(k) Retirement Savings…

Filing takeaways

Ways to act on Alkermes, Inc. 401(k) Retirement Savings Plan's numbers.

By total assets, Alkermes, Inc. 401(k) Retirement Savings Plan ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in Massachusetts. Compare plans
Alkermes, Inc.'s sponsor-wide assets have grown 33.4% since 2022 across 3 plan years on file. More Professional & Technical Services plans

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 232472830.