Plan Ledger DOL Form 5500 · updated monthly

C4 Therapeutics, Inc.401(k)

C4 THERAPEUTICS, INC. 401(K) PLAN · WATERTOWN, MA · plan year 2024

Reported admin expense ratio · 2024
0.00%

Peer grade: A · admin costs + employer contributions vs same-size plans · how grading works

C4 Therapeutics, Inc. reported $1,182 in plan administrative expenses for 2024: 0.00% of average plan assets, lower than ~75% of peers. Employer contributions averaged $8,900 per active participant. This ratio covers administrative expenses reported on the plan's Schedule H only; fund-level expense ratios are not included in public structured data — see methodology.

Across the 2 years on file its reported administrative ratio fell from 0.01% to 0.00%. The plan sits in the $10M–$50M size bracket, benchmarked here against 27,838 comparable plans and shown alongside other professional & technical services employers. By assets it is the 1,110th-largest of 2,726 plans among Massachusetts employers on file, and the 4,624th of 11,654 in professional & technical services. In 2024, employees put in $2.20 for every $1.00 the employer contributed; active participation has shrunk from 147 to 111 since 2022.

Plan summary
Net assets, end of year$25,973,968
Participants with balances186
Active participants111
Employer contributions$987,912
Employee contributions$2,177,548
Employer contribution per active participant$8,900
Average account balance$139,645
Benefits paid to participants$2,514,400
Plan auditUnmodified (clean) audit opinion
Plan history3
Yearassets · accounts · employer contribution
2024$26.0M · 186 accts · $988K emplr
2023$21.6M · 198 accts · $1.1M emplr
2022$13.9M · 184 accts · $891K emplr
Administrative expenses, itemized · 2024
Recordkeeping & contract admin$1,182
Total administrative$1,182
The C4 Therapeutics, Inc. 401(k) match · 2024
Employer contribution per active participant$8,900
Median for plans this size$2,416
2024$8,900 per active participant
2023$7,713 per active participant
2022$6,061 per active participant

C4 Therapeutics, Inc.'s 2024 employer contribution ran above the $2,416 median for plans its size, placing it in the top quarter of its peers. Filings report dollars actually contributed, not the match formula; the formula itself (for example, 50% of the first 6% of pay) lives in the plan's summary plan description from HR.

What these fees cost you

Annual cost at the plan's reported 2024 administrative ratio, against the median plan its size; fund expense ratios are extra. Compare any plan.

Service providers · 20241
FIDELITY INVESTMENTS INSTITUTIONAL · Loan processing$1,182

Compensation shown is direct payments from plan assets reported on Schedule C. Providers paid through fund revenue-sharing appear as indirect.

Administrative cost history3
2024$1,182 · 0.00%
2023$4,975 · 0.03%
2022$919 · 0.01%
Same employer
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Lastpass US LP MA$27.0M · 0.06%
Oneshield, Inc. MA$26.7M · 0.25%
Nitsch Engineering, Inc MA$26.3M · 0.15%
Ora, Inc. MA$26.2M · 0.03%
Validity Inc. MA$25.7M · 0.36%
Mak Technologies, Inc. MA$25.3M · 0.30%

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Source: U.S. Department of Labor, Form 5500 series, EIN 475617627 · Verify on EFAST2 · Amounts are as reported by the plan sponsor for the plan year shown.