Plan Ledger DOL Form 5500 · updated monthly

Gritstone Bio, Inc.401(k)

GRITSTONE BIO 401(K) PLAN · EMERYVILLE, CA · plan year 2024

Reported admin expense ratio · 2024
0.49%

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

Gritstone Bio, Inc. reported $83,575 in plan administrative expenses for 2024: 0.49% of average plan assets, higher than ~75% of peers. Employer contributions averaged $354,465 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 rose from 0.12% to 0.49%. The plan sits in the $10M–$50M size bracket, benchmarked here against 27,838 comparable plans and shown alongside other manufacturing employers. By assets it is the 3,981st-largest of 9,483 plans among California employers on file, and the 6,458th of 13,661 in manufacturing. In 2024, employees put in $2.22 for every $1.00 the employer contributed; active participation has shrunk from 227 to 3 since 2022.

Plan summary
Net assets, end of year$17,494,463
Participants with balances85
Active participants3
Employer contributions$1,063,396
Employee contributions$2,357,000
Employer contribution per active participant$354,465
Average account balance$205,817
Benefits paid to participants$5,290,617
Plan auditUnmodified (clean) audit opinion
Plan history3
Yearassets · accounts · employer contribution
2024$17.5M · 85 accts · $1.1M emplr
2023$16.7M · 202 accts · $1.3M emplr
2022$10.8M · 187 accts · $206K emplr
Administrative expenses, itemized · 2024
Recordkeeping & contract admin$35,198
Investment management$48,377
Total administrative$83,575
The Gritstone Bio, Inc. 401(k) match · 2024
Employer contribution per active participant$354,465
Median for plans this size$2,416
2024$354,465 per active participant
2023$5,415 per active participant
2022$907 per active participant

Gritstone Bio, 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 · 20242
ALLIANT RETIREMENT SERVICES · Investment advisory (plan)$43,924
FIDELITY INVESTMENTS INSTITUTIONAL · Loan processing$35,198

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$83,575 · 0.49%
2023$58,591 · 0.43%
2022$13,062 · 0.12%
Same employer
Similar plansManufacturing · California
Think Surgical, Inc. CA$17.8M · 0.17%
Targus International LLC CA$17.6M · 0.33%
Micrometals CA$17.5M
Dongalen Enterprises, Inc. CA$17.5M · 0.76%
Wilwood Engineering CA$17.5M · 0.05%
Voltage Multipliers, Inc. CA$17.4M · 0.04%

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Source: U.S. Department of Labor, Form 5500 series, EIN 474859534 · Verify on EFAST2 · Amounts are as reported by the plan sponsor for the plan year shown.