Jax 403(b) Retirement Plan

Profit Sharing · DOL Form 5500 · 2023

What the Filing Says About Jax 403(b) Retirement Plan

Jax 403(b) Retirement Plan is a Profit Sharing retirement plan sponsored by The Jackson Laboratory, headquartered in Maine. According to the U.S. Department of Labor's 2023 Form 5500 filing, the plan reports $526M in total end-of-year assets and covers 2,592 participants across the Professional & Technical Services industry. The sponsor's EIN on file with the U.S. Department of Labor is 010211513, and the plan has been effective since 1965-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets grew sharply from $438M at the beginning of 2023 to $526M at year-end - up 20.0%. Net assets (after liabilities) closed the year at $526M, with reported net income of $88M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Across the 3 plan years The Jackson Laboratory has on file with PlainRetire (2022-2024), sponsor-wide plan assets have moved from $438M to $603M, a gain of 37.6%, while reported participants moved from 2,458 to 2,735 (+11.3%). The strongest year on file by total sponsor assets was 2024 at $603M; the softest was 2022 at $438M. Year-by-year, sponsor-wide filings show: 2022 - $438M in assets across 1 plan covering 2,458 participants; 2023 - $526M in assets across 1 plan covering 2,592 participants; 2024 - $603M in assets across 1 plan covering 2,735 participants.

By assets, Jax 403(b) Retirement Plan outranks 97% of the 126,618 plans that filed a Form 5500 for the 2023 plan year, and holds roughly 5.3x the national average plan size of $100M and 730 average participants.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows, a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

How the percentile is calculated: we count every plan that filed a 2023 Form 5500 with a reported end-of-year asset figure (126,618 plans), rank Jax 403(b) Retirement Plan against all of them by total assets, and report the share of those plans it outranks. A plan reporting no asset figure for the year is excluded from the ranking rather than assumed to be zero.