401(k) · DOL Form 5500 · 2022

Ambrx, Inc. 401(k) Plan

Data updated 2026-08-25

$10M
Total assets Small plan by assets
79
Participants Small participant base
66th
Percentile by assets National rank
$131,321
Avg per participant Near avg balance/head
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Official DOL plan name: Ambrx, Inc. 401(k) Plan · Sponsored by Ambrx, Inc. · California · Professional & Technical Services

$10M in assets, 79 participants

Ambrx, Inc.'s Ambrx, Inc. 401(k) Plan reported $10M in total assets and 79 participants in its 2022 DOL Form 5500 filing, ranking in the 66th 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.

  • #13,906 in Professional & Technical Services (21,562 peers)

Ambrx, Inc. multi-year trail

Ambrx, Inc.'s plans moved +49.2% in assets from 2022 to 2024; this filing shows Ambrx, Inc. 401(k) Plan at $10M / 79 participants.

#13,906
in Professional & Technical Services (21,562 peers)
-11.4%
assets change YoY

The plan reported a net loss of $1M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Ambrx, Inc. 401(k) Plan's mid-pack asset rank among Professional & Technical Services and all filers

Ambrx, Inc. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$10,374,382 Top 34% higher than 66% of 139,123 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022

Ambrx, Inc. 401(k) Plan among smaller filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Ambrx, Inc. 401(k) Plan is a small filing (79 participants) on this national headcount ladder.

Published 5500 schedule card

Filing strip 571147346 · Ambrx, Inc. PY 2022 · 401(k)

Ambrx, Inc. 401(k) Plan · $10M · 79 · 66th

  • PCT $10M
  • PCT 79
  • PCT 66th
  • PCT 401(k)
  • PCT near Gulf Coast Community Services Association 401(k) Plan
  • PCT ind #13906

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 California →

Ambrx, Inc. 401(k) Plan in the asset neighbourhood

Ambrx, Inc. 401(k) Plan$10MGulf Coast Community Services Association 401(k) PlanGulf Coast Community Service…$10M7 Cedars 401(k) Plan$10MAsps 401(k) Plan$10MSupply New England, Inc. Employee Retirement Trust PlanSupply New England, Inc. Emp…$10M
End-of-year total assets ($M) among Ambrx, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Ambrx, Inc. multi-year asset trail

Sponsor-wide plan assets over time

All Ambrx, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$15M 49.20321036954298% vs 2022
2024 filing year
$8M$10M$12M$14M$16M 202220232024 $10.4M $15.5M ▲ +49.3%
Year Plans Participants Total Assets
2022 1 79 $10M
2023 1 67 $13M
2024 2 134 $15M

Ambrx, Inc. filing trail (2022)

Total Assets (Beginning of Year)$12M
Net Assets (End of Year)$10M
Net Income-$1M
Employer EIN571147346
Plan Effective Date2004-01-01
Filing StatusFILING RECEIVED

Nearby 401(k) Plans in California

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

Ambrx, Inc. 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Ambrx, Inc. 401(k) Plan, Total assets ($B): 0.010374382 · Participants: 79Ambrx, Inc. 401(k) PlanWells Fargo & Company 401(k) Plan, Total assets ($B): 45.765616608 · Participants: 205865Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 28.89820221 · Participants: 102963Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 21.851716605 · Participants: 46320Oracle Corporation 401(k) Savings and Investment PlanChevron Employee Savings Investment Plan, Total assets ($B): 18.60989746 · Participants: 19946Chevron Employee Savings Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 18.361585903 · Participants: 54672Intel 401(k) Savings Plan
Ambrx, Inc. 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Ambrx, Inc. 401(k) Plan side-by-side with 3 peers →

Ambrx, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Gulf Coast Community Services Association 401(k) Plan in TX ($10M); by covered participants it is Urbieta 401(k) Plan in FL (79 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($10M here).

Similar participant headcount

Nearest other-state filings by covered participants (79 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Ambrx, Inc. 401(k) Plan assets move in 2022? ▼
Ambrx, Inc. 401(k) Plan pulled back noticeably - down 11.4% during 2022, from $12M to $10M. Reported net income was -$1M.
How have Ambrx, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Ambrx, Inc.'s sponsor-wide assets grew 49.2%, from $10M to $15M.
Which 401(k) plans are similar in size to Ambrx, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Gulf Coast Community Services Association 401(k) Plan in TX ($10M, 304 participants).
Which 401(k) plans cover a similar participant headcount to Ambrx, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Urbieta 401(k) Plan in FL (79 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 571147346.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.