Other · DOL Form 5500 · 2022
The Jackson Laboratory Retirement Plan
Data updated 2026-08-11
- $438M
- Total assets
- 2,458
- Participants
- 98th
- Percentile by assets
- $178,187
- Avg per participant
Official DOL plan name: Jax 403(b) Retirement Plan · Sponsored by The Jackson Laboratory · Maine · Professional & Technical Services
$438M in assets, 2,458 participants
The Jackson Laboratory's Jax 403(b) Retirement Plan reported $438M in total assets and 2,458 participants in its 2022 DOL Form 5500 filing, ranking in the 98th 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.
- 98th percentile by assets (of 139,126 plans)
- #21,216 in Professional & Technical Services (21,562 peers)
Coverage in Maine
Jax 403(b) Retirement Plan covers 2,458 participants in Maine, 5.2x the typical Maine plan (state average ~472 per filing). Assets: $438M.
- $438M
- total plan assets (2022 EOY)
- 2,458
- covered participants
- 98th
- percentile by assets (of 139,126 plans)
- $178,187
- avg assets per participant
The plan reported a net loss of $58M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Participants vs Maine filers
In Maine, the average filing covers about 472 participants across 561 plans. Jax 403(b) Retirement Plan reports 2,458 participants - 5.2x that state average ($438M EOY assets).
Maine filing particulars
| Total Assets (Beginning of Year) | $496M |
|---|---|
| Net Assets (End of Year) | $438M |
| Net Income | -$58M |
| Employer EIN | 010211513 |
| Plan Effective Date | 1965-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (The Jackson Laboratory)
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 1 | 2,458 | $438M |
| 2023 | 1 | 2,592 | $526M |
| 2024 | 1 | 2,735 | $603M |
Nearby Other Plans in Maine
Peer Other plans, same state, same plan type, ranked by total assets.
Jax 403(b) Retirement Plan vs. nearby Other plans in Maine, assets vs. participants
- Mainehealth 403(b) Retirement Plan $1.8B · 21,547
- Northern Light Health Retirement Partnership 403(b) Plan $938M · 11,671
- Mainegeneral Health 403(b) Retirement Plan $325M · 4,592
- Colby College Retirement Plan $248M · 894
- University of New England Defined Contribution Plan $197M · 1,071
Similar-Sized Other Plans Nationally
Other plans in other states closest to Jax 403(b) Retirement Plan by total assets, not by location.
- Community Hospitals of Central California Tax Sheltered Annuity Plan (CA) $439M · 8,998
- Nicklaus Children's Health System Retirement Plan (FL) $435M · 4,000
- Overlake Hospital Medical Center 403(b)Retirement Plan (WA) $435M · 3,301
- Billings Clinic 403b Plan (MT) $444M · 4,393
Frequently Asked Questions
How did Jax 403(b) Retirement Plan assets move in 2022? ▼
How have The Jackson Laboratory plan assets changed over time? ▼
Where does Jax 403(b) Retirement Plan rank by assets among Form 5500 filers? ▼
Which Other plans are similar in size to Jax 403(b) Retirement Plan? ▼
Next read for Jax 403(b) Retirement Plan
Filing takeaways
Ways to act on Jax 403(b) Retirement Plan's numbers.
- By total assets, Jax 403(b) Retirement Plan ranks in the top 5% of all filed plans by assets. See the largest plans
- Compare it side-by-side against 3 similar Other plans in Maine. Compare plans
- The Jackson Laboratory's sponsor-wide assets have grown 37.6% since 2022 across 3 plan years on file. More Professional & Technical Services plans