401(k) · DOL Form 5500 · 2022
Alnylam Pharmaceuticals, Inc. 401(k) Plan
Data updated 2026-08-11
- $210M
- Total assets
- 1,314
- Participants
- 96th
- Percentile by assets
- $159,945
- Avg per participant
Official DOL plan name: Alnylam Pharmaceuticals, Inc. Savings & Investment Plan · Sponsored by Alnylam Pharmaceuticals, Inc. · Massachusetts · Professional & Technical Services
$210M in assets, 1,314 participants
Alnylam Pharmaceuticals, Inc.'s Alnylam Pharmaceuticals, Inc. Savings & Investment Plan reported $210M in total assets and 1,314 participants in its 2022 DOL Form 5500 filing, ranking in the 96th 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.
- 96th percentile by assets (of 139,126 plans)
- #20,884 in Professional & Technical Services (21,562 peers)
Where Alnylam Pharmaceuticals, Inc. Savings & Investment Plan sits by assets
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan sits in the top 5% of all filed plans by assets, $210M for 1,314 participants (~$159,945/participant), down 1.6% in 2022.
- $210M
- total plan assets (2022 EOY)
- 1,314
- covered participants
- 96th
- percentile by assets (of 139,126 plans)
- $159,945
- avg assets per participant
The plan reported a net loss of $3M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan vs the 2022 asset distribution
By assets, Alnylam Pharmaceuticals, Inc. Savings & Investment Plan outranks 96% of the 139,126 plans that filed a Form 5500 for the 2022 plan year, and holds roughly 2.1x the national average plan size of $100M (721 average participants).
Scale-class filing particulars (2022)
| Total Assets (Beginning of Year) | $214M |
|---|---|
| Net Assets (End of Year) | $210M |
| Net Income | -$3M |
| Employer EIN | 043696884 |
| Plan Effective Date | 2003-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Alnylam Pharmaceuticals, Inc.)
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 1 | 1,314 | $210M |
| 2023 | 1 | 1,639 | $276M |
| 2024 | 1 | 1,689 | $344M |
Nearby 401(k) Plans in Massachusetts
Peer 401(k) plans, same state, same plan type, ranked by total assets.
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
- Fidelity Retirement Savings Plan $23.0B · 52,036
- Liberty Mutual 401(k) Plan $8.8B · 32,843
- Massachusetts Institute of Technology Supplemental 401(k) Plan $5.8B · 13,690
- Philips North America 401(k) Plan $5.2B · 19,750
- Boston Scientific Corporation 401(k) Retirement Savings Plan $4.9B · 18,359
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to Alnylam Pharmaceuticals, Inc. Savings & Investment Plan by total assets, not by location.
- The Kenan Advantage Group, Inc. 401(k) Plan (OH) $210M · 6,459
- Pemco 401(k) Plan (WA) $210M · 523
- Skidmore, Owings & Merrill LLP 401(k) Savings Plan (IL) $210M · 1,032
- Wellpath 401(k) Plan (TN) $210M · 10,750
Frequently Asked Questions
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Ways to act on Alnylam Pharmaceuticals, Inc. Savings & Investment Plan's numbers.
- By total assets, Alnylam Pharmaceuticals, Inc. Savings & Investment 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
- Alnylam Pharmaceuticals, Inc.'s sponsor-wide assets have grown 63.7% since 2022 across 3 plan years on file. More Professional & Technical Services plans