401(k) · DOL Form 5500 · 2023

Prospect Medical Holdings, Inc. 401(k) Plan

Data updated 2026-08-25

$265M
Total assets Near avg plan size: 6,301
Participants Above avg headcount: 96th
Percentile by assets National rank: $42,046
Avg per participant Low balance/head

Official DOL plan name: Prospect Medical Retirement Savings Plan B · Sponsored by Prospect Medical Holdings, Inc. · California · Healthcare & Social Assistance

$265M in assets, 6,301 participants

Prospect Medical Holdings, Inc.'s Prospect Medical Retirement Savings Plan B reported $265M in total assets and 6,301 participants in its 2023 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.

#17,005 in Healthcare & Social Assistance (17,684 peers)

Coverage in California

Prospect Medical Retirement Savings Plan B covers 6,301 participants in California, 10.0x the typical California plan (state average ~630 per filing). Assets: $265M.

#17,005
in Healthcare & Social Assistance (17,684 peers): +21.7%
assets growth YoY: 2.7×
vs typical plan assets (national mean)

Prospect Medical Retirement Savings Plan B's outsized position by total assets

Prospect Medical Retirement Savings Plan B vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$264,929,598 Top 4% higher than 96% 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

Prospect Medical Retirement Savings Plan B's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Prospect Medical Retirement Savings Plan B lands in the large band (6,301 participants).

Micro (1-10) 35,718 filings (27%) Small (11-100) 27,089 filings (21%) Medium (101-1,000) 55,445 filings (43%) Large (1,001-10,000) 10,273 filings (8%) Mega (10,000+) 1,374 filings (1%)

Form 5500 schedule snapshot

Filing strip 371747940 · Prospect Medical Holdings, Inc. PY 2023 · 401(k)

Prospect Medical Retirement Savings Plan B · $265M · 6,301 · 96th

EBSA $265M
PART 6,301
TYPE 96th
NET 401(k)
BOOK near Autokiniton Retirement Savings Plan
VS-ST ind #17005

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 Healthcare & Social Assistance retirement plans → · Plans in California →

End-of-year total assets ($M) among Prospect Medical Retirement Savings Plan B and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

California filing particulars

Total Assets (Beginning of Year)	$218M
Net Assets (End of Year)	$265M
Net Income	$40M
Employer EIN	371747940
Plan Effective Date	1997-03-01
Filing Status	FILING RECEIVED

Nearby 401(k) Plans in California

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Prospect Medical Retirement Savings Plan B vs. nearby 401(k) plans in California, assets vs. participants

Wells Fargo & Company 401(k) Plan $51.8B · 193,919
Google LLC 401(k) Savings Plan $39.0B · 122,867
Oracle Corporation 401(k) Savings and Investment Plan $26.3B · 63,105
Intel 401(k) Savings Plan $22.2B · 59,863
Apple 401(k) Plan $19.8B · 106,111

Compare Prospect Medical Retirement Savings Plan B side-by-side with 3 peers →

Prospect Medical Retirement Savings Plan B's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Autokiniton Retirement Savings Plan in MI ($265M); by covered participants it is Magellan Health, Inc. Retirement Savings Plan in MO (6,300 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($265M here).

Autokiniton Retirement Savings Plan (MI) $265M · 4,004
Ameris Bancorp 401(k) Profit Sharing Plan (GA) $265M · 2,822
Qiagen 401(k) Plan (MD) $265M · 1,221
Lucidhealth 401(k) Profit Sharing Plan (OH) $265M · 364

Similar participant headcount

Nearest other-state filings by covered participants (6,301 participants); asset peers above are excluded.

Magellan Health, Inc. Retirement Savings Plan (MO) 6,300 · 1 off
Patterson-Uti Energy, Inc. 401(k) Profit Sharing Plan (TX) 6,304 · 3 off
Valmont Employee Retirement Savings Plan (NE) 6,294 · 7 off
Hawaii Carpenters 401(k) Fd (HI) 6,309 · 8 off

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Prospect Medical Retirement Savings Plan B assets move in 2023? ▼

Prospect Medical Retirement Savings Plan B grew sharply - up 21.7% during 2023, from $218M to $265M. Reported net income was $40M.

Where does Prospect Medical Retirement Savings Plan B rank by assets among Form 5500 filers? ▼

Prospect Medical Retirement Savings Plan B ranks in the 96th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).

Which 401(k) plans are similar in size to Prospect Medical Retirement Savings Plan B? ▼

Among 401(k) plans in other states, the closest by assets is Autokiniton Retirement Savings Plan in MI ($265M, 4,004 participants).

Which 401(k) plans cover a similar participant headcount to Prospect Medical Retirement Savings Plan B? ▼

Among 401(k) plans in other states, the closest by covered participants is Magellan Health, Inc. Retirement Savings Plan in MO (6,300 participants, $614M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 371747940.