401(k) · DOL Form 5500 · 2024

C4 Therapeutics, Inc. 401(k) Plan

Data updated 2026-08-25

$26M
Total assets Below avg plan size
149
Participants Small participant base
75th
Percentile by assets National rank
$174,322
Avg per participant Above avg balance/head
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Official DOL plan name: C4 Therapeutics, Inc. 401(k) Plan · Sponsored by C4 Therapeutics, Inc. · Massachusetts · Professional & Technical Services

$26M in assets, 149 participants

C4 Therapeutics, Inc.'s C4 Therapeutics, Inc. 401(k) Plan reported $26M in total assets and 149 participants in its 2024 DOL Form 5500 filing, ranking in the 75th 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.

  • #15,106 in Professional & Technical Services (20,173 peers)

Coverage in Massachusetts

C4 Therapeutics, Inc. 401(k) Plan covers 149 participants in Massachusetts, about 23% of the average Massachusetts filer (state average ~659 per filing). Assets: $26M.

#15,106
in Professional & Technical Services (20,173 peers)
+20.0%
assets growth YoY
0.3×
vs typical plan assets (national mean)

C4 Therapeutics, Inc. 401(k) Plan's outsized position by total assets

C4 Therapeutics, Inc. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$25,973,968 Top 25% higher than 75% of 123,620 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 2024

C4 Therapeutics, Inc. 401(k) Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. C4 Therapeutics, Inc. 401(k) Plan sits mid-pack in the medium band (149 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • C4 Therapeutics, Inc. 401(k) Plan reported net income fell from $8M in the plan year 2023 filing to $4M in the plan year 2024 filing.
  • C4 Therapeutics, Inc. 401(k) Plan end-of-year assets rose from $22M in the plan year 2023 filing to $26M in the plan year 2024 filing.
  • C4 Therapeutics, Inc. 401(k) Plan reported participants rose from 147 in the plan year 2023 filing to 149 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 475617627 · C4 Therapeutics, Inc. PY 2024 · 401(k)

C4 Therapeutics, Inc. 401(k) Plan · $26M · 149 · 75th

  • TYPE $26M
  • TYPE 149
  • TYPE 75th
  • TYPE 401(k)
  • TYPE near Meglobal Americas Inc. Retirement Plan
  • TYPE ind #15106

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 Massachusetts →

C4 Therapeutics, Inc. 401(k) Plan in the asset neighbourhood

Tractor Central LLC 401(k) and Retirement SavingsTractor Central LLC 401(k) a…$26MBuffalo Games, LLC. 401(k) PlanBuffalo Games, LLC. 401(k) P…$26MEptura, Inc. 401(k) Plan$26MC4 Therapeutics, Inc. 401(k) PlanC4 Therapeutics, Inc. 401(k)…$26MMeglobal Americas Inc. Retirement PlanMeglobal Americas Inc. Retir…$26M
End-of-year total assets ($M) among C4 Therapeutics, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Massachusetts filing particulars

Total Assets (Beginning of Year)$22M
Net Assets (End of Year)$26M
Net Income$4M
Employer EIN475617627
Plan Effective Date2016-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (C4 Therapeutics, Inc.)

Sponsor-wide plan assets over time

All C4 Therapeutics, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$26M 87.11792297841038% vs 2022
2024 filing year
$10M$15M$20M$25M$30M 202220232024 $13.9M $26M ▲ +87.1%
Year Plans Participants Total Assets
2022 1 121 $14M
2023 1 147 $22M
2024 1 149 $26M

Nearby 401(k) Plans in Massachusetts

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

C4 Therapeutics, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants C4 Therapeutics, Inc. 401(k) Plan, Total assets ($B): 0.025973968 · Participants: 149C4 Therapeutics, Inc. 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 34.201609937 · Participants: 66907Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 11.352606499 · Participants: 34618Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 7.720373045 · Participants: 14762Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 6.775289067 · Participants: 20639Boston Scientific Corporation 401(k) Retirement Savings PlanState Street Salary Savings Program, Total assets ($B): 6.532301643 · Participants: 12777State Street Salary Savings Program
C4 Therapeutics, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare C4 Therapeutics, Inc. 401(k) Plan side-by-side with 3 peers →

C4 Therapeutics, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Meglobal Americas Inc. Retirement Plan in TX ($26M); by covered participants it is Tier1 Integrity, LLC 401(k) Plan in TX (149 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($26M here).

Similar participant headcount

Nearest other-state filings by covered participants (149 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did C4 Therapeutics, Inc. 401(k) Plan assets move in 2024? ▼
C4 Therapeutics, Inc. 401(k) Plan grew sharply - up 20.0% during 2024, from $22M to $26M. Reported net income was $4M.
How have C4 Therapeutics, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), C4 Therapeutics, Inc.'s sponsor-wide assets grew 87.1%, from $14M to $26M.
Where does C4 Therapeutics, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
C4 Therapeutics, Inc. 401(k) Plan ranks in the 75th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to C4 Therapeutics, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Meglobal Americas Inc. Retirement Plan in TX ($26M, 84 participants).
Which 401(k) plans cover a similar participant headcount to C4 Therapeutics, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Tier1 Integrity, LLC 401(k) Plan in TX (149 participants, $646K in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 475617627.

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.