Plan Ledger DOL Form 5500 · updated monthly

Flagship Pioneering, Inc.401(k)

FLAGSHIP PIONEERING 401(K) PROFIT SHARING PLAN · CAMBRIDGE, MA · plan year 2024

Reported admin expense ratio · 2024
0.01%

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

Flagship Pioneering, Inc. reported $3,838 in plan administrative expenses for 2024: 0.01% of average plan assets, lower than ~75% of peers. Employer contributions averaged $4,228 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 0.00% to 0.01%. The plan sits in the $50M–$250M size bracket, benchmarked here against 10,352 comparable plans and shown alongside other professional & technical services employers. By assets it is the 578th-largest of 2,726 plans among Massachusetts employers on file, and the 2,206th of 11,654 in professional & technical services. In 2024, employees put in $3.54 for every $1.00 the employer contributed; active participation has grown from 357 to 539 since 2022.

Plan summary
Net assets, end of year$64,960,173
Participants with balances601
Active participants539
Employer contributions$2,278,776
Employee contributions$8,071,185
Employer contribution per active participant$4,228
Average account balance$108,087
Benefits paid to participants$5,000,371
Plan auditUnmodified (clean) audit opinion
Plan history3
Yearassets · accounts · employer contribution
2024$65.0M · 601 accts · $2.3M emplr
2023$47.8M · 499 accts · $1.5M emplr
2022$33.5M · 420 accts · $948K emplr
Administrative expenses, itemized · 2024
Recordkeeping & contract admin$3,838
Total administrative$3,838
The Flagship Pioneering, Inc. 401(k) match · 2024
Employer contribution per active participant$4,228
Median for plans this size$3,635
2024$4,228 per active participant
2023$3,361 per active participant
2022$2,655 per active participant

Flagship Pioneering, Inc.'s 2024 employer contribution ran above the $3,635 median for plans its size. 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
FIDELITY INVESTMENTS INSTITUTIONAL · Loan processing$3,838
BROWN LISLE/CUMMINGS INCindirect comp

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$3,838 · 0.01%
2023$756 · 0.00%
2022$1,219 · 0.00%
Same employer
Similar plansProfessional & Technical Services · Massachusetts
Rubin and Rudman LLP MA$67.4M · 0.03%
Argenx US Inc. MA$67.2M · 0.05%
Axis Communications, Inc. MA$63.6M · 0.21%
Linedata Services, Inc. MA$62.7M · 0.02%
Altman Solon US, LP MA$62.2M · 0.15%

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Source: U.S. Department of Labor, Form 5500 series, EIN 752992246 · Verify on EFAST2 · Amounts are as reported by the plan sponsor for the plan year shown.