401(k) · DOL Form 5500 · 2022
Alnylam Pharmaceuticals, Inc. 401(k) Plan
Data updated 2026-08-25
- $210M
- Total assets Near avg plan size
- 1,314
- Participants Near avg headcount
- 96th
- Percentile by assets National rank
- $159,945
- Avg per participant Above avg balance/head
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.
- #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.
- #20,884
- in Professional & Technical Services (21,562 peers)
- -1.6%
- assets change YoY
- 2.1×
- vs typical plan assets (national mean)
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's outsized position by total assets
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan vs every filed plan by assets
End-of-year total assets · plan year 2022 · DOL Form 5500
$210,168,343 Top 4% higher than 96% of 139,123 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan's large-plan peer group by participant headcount
Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Alnylam Pharmaceuticals, Inc. Savings & Investment Plan lands in the large band (1,314 participants).
Published 5500 schedule card
Filing strip 043696884 · Alnylam Pharmaceuticals, Inc. PY 2022 · 401(k)
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan · $210M · 1,314 · 96th
- RANK $210M
- RANK 1,314
- RANK 96th
- RANK 401(k)
- RANK near The Kenan Advantage Group, Inc. 401(k) Plan
- RANK ind #20884
Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Professional & Technical Services retirement plans → · Plans in Massachusetts →
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan in the asset neighbourhood
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.)
Sponsor-wide plan assets over time
All Alnylam Pharmaceuticals, Inc. plans reported in each filing year
- Latest sponsor-wide plan assets
- $344M 63.6764505489773% vs 2022
- 2024 filing year
| 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.
- 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
Alnylam Pharmaceuticals, Inc. Savings & Investment Plan's out-of-state 401(k) peers by assets and headcount
Outside Massachusetts, the nearest 401(k) by assets is The Kenan Advantage Group, Inc. 401(k) Plan in OH ($210M); by covered participants it is Anchor Glass Container Corporation Hourly Employees' Supplemental Retirement Plan in FL (1,314 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($210M here).
- 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
Similar participant headcount
Nearest other-state filings by covered participants (1,314 participants); asset peers above are excluded.
- Anchor Glass Container Corporation Hourly Employees' Supplemental Retirement Plan (FL) 1,314 · 0 off
- As America, Inc. 401(k) Plan (NJ) 1,314 · 0 off
- Prrc Employee Savings Plan (CT) 1,314 · 0 off
- B&g Foods 401(k) Savings and Investment Plan (NJ) 1,314 · 0 off
DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.