Other · DOL Form 5500 · 2023
California Institute of Technology Retirement Plan
Data updated 2026-08-25
- $4.8B
- Total assets Very large vs avg
- 10,682
- Participants Very large workforce
- 100th
- Percentile by assets National rank
- $448,622
- Avg per participant High balance/head
Official DOL plan name: Caltech Base Retirement Plan · Sponsored by California Institute of Technology · California · Educational Services
$4.8B in assets, 10,682 participants
California Institute of Technology's Caltech Base Retirement Plan reported $4.8B in total assets and 10,682 participants in its 2023 DOL Form 5500 filing, ranking in the 100th 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.
- #3,723 in Educational Services (3,735 peers)
Coverage in California
Caltech Base Retirement Plan covers 10,682 participants in California, 17x the typical California plan (state average ~630 per filing). Assets: $4.8B.
- #3,723
- in Educational Services (3,735 peers)
- +14.1%
- assets growth YoY
- 48×
- vs typical plan assets (national mean)
Caltech Base Retirement Plan's outsized position by total assets
Caltech Base Retirement Plan vs every filed plan by assets
End-of-year total assets · plan year 2023 · DOL Form 5500
$4,792,181,822 Highest reported value at or above every one of 127,068 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023
Caltech Base Retirement Plan's mega-plan peer group by participant headcount
Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Caltech Base Retirement Plan is a mega filing (10,682 participants), the rightmost band on the breakdown.
What changed between DOL Form 5500 filings
plan year 2022 → plan year 2023
- Caltech Base Retirement Plan reported net income rose from -$624M in the plan year 2022 filing to $592M in the plan year 2023 filing.
- Caltech Base Retirement Plan end-of-year assets rose from $4.2B in the plan year 2022 filing to $4.8B in the plan year 2023 filing.
- Caltech Base Retirement Plan reported participants rose from 9,827 in the plan year 2022 filing to 10,682 in the plan year 2023 filing.
EBSA filing schedule strip
Filing strip 951643307 · California Institute of Technology PY 2023 · Other
Caltech Base Retirement Plan · $4.8B · 10,682 · 100th
- PCT $4.8B
- EIN 10,682
- RANK 100th
- PHOTO Other
- IND near Fca US LLC Salaried Employees' Savings Plan
- EOY ind #3723
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 Educational Services retirement plans → · Plans in California →
Caltech Base Retirement Plan in the asset neighbourhood
California filing particulars
| Total Assets (Beginning of Year) | $4.2B |
|---|---|
| Net Assets (End of Year) | $4.8B |
| Net Income | $592M |
| Employer EIN | 951643307 |
| Plan Effective Date | 1921-11-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (California Institute of Technology)
Sponsor-wide plan assets over time
All California Institute of Technology plans reported in each filing year
- Latest sponsor-wide plan assets
- $7.6B 29.22886903959861% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 2 | 18,012 | $5.9B |
| 2023 | 2 | 18,963 | $6.8B |
| 2024 | 2 | 19,524 | $7.6B |
Nearby Other Plans in California
Peer Other plans, same state, same plan type, ranked by total assets.
- Stanford Contributory Retirement Plan $11.0B · 21,674
- Sutter Health 403(b) Savings Plan $6.5B · 50,273
- Stanford Health Care Retirement Savings Plan $5.8B · 22,681
- University of Southern California Tax-Deferred Annuity Plan $4.3B · 21,764
- Cedars-Sinai Health System 403b Retirement Plan $2.2B · 10,989
Scale composition for Caltech Base Retirement Plan
Caltech Base Retirement Plan reports $4.8B in end-of-year assets across 10,682 participants (0.039% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.011% of 93,925,755 covered participants) - about $448,622 per participant (3.2x the national average assets-per-participant) . Net income for plan year 2023 was $592M.
This plan identity (EIN 951643307, plan #002) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $4.2B to $5.2B (+24.9%) while covered participants moved from 9,827 to 10,970 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 9,827 | $4.2B | Open filing |
| 2023 | 10,682 | $4.8B | This page |
| 2024 · index core | 10,970 | $5.2B | Open filing |
The same sponsor also keeps 2 other index-core plans on PlainRetire:
- Caltech Base Retirement Plan (Other, $5.2B, 10,970 participants)
- Caltech Voluntary Retirement Plan (Other, $2.3B, 8,554 participants)
Caltech Base Retirement Plan's out-of-state Other peers by assets and headcount
Outside California, the nearest Other by assets is Fca US LLC Salaried Employees' Savings Plan in MI ($4.8B); by covered participants it is 403(b) Retirement Savings Plan for Integris Health, Inc. in OK (10,744 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($4.8B here).
- Fca US LLC Salaried Employees' Savings Plan (MI) $4.8B · 16,630
- New York University Retirement Plan for Members of the Faculty, Professional Research Staff and Administration (NY) $4.9B · 10,107
- The Mitre Corporation Tax Sheltered Annuity Plan (MA) $4.7B · 11,980
- Fca US LLC UAW Savings Plan (MI) $4.7B · 49,473
Similar participant headcount
Nearest other-state filings by covered participants (10,682 participants); asset peers above are excluded.
- 403(b) Retirement Savings Plan for Integris Health, Inc. (OK) 10,744 · 62 off
- Boston Medical Center 403(b) Retirement Plan (MA) 10,493 · 189 off
- The University of Chicago Medical Center Supplemental Retirement Annuity Plan (IL) 10,942 · 260 off
- Baptist Health 403(b) Plan (AR) 10,987 · 305 off
DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.