Generation Bio Co.
Plan context: Generation Bio 401(K) Plan
EIN 81-4301284 • Cambridge, MA • 10 filings • 2 plans
Current Snapshot
Latest Year
2024
2024 Participants
116
2024 Assets
$17,383,980
2024 Contributions
$3,042,405
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 2 | 116 | $17,383,980 | $3,042,405 | $26,228iApproximate average salary by contribution assumption: employee only about $655,691 at 4% or $437,127 at 6%; with 50% employer match about $437,127 at 4% or $291,418 at 6%; with 100% employer match about $327,845 at 4% or $218,564 at 6%. |
| Generation Bio 401(K) Plan | - | 116 | $17,383,980 | $3,042,405 | $26,228iApproximate average salary by contribution assumption: employee only about $655,691 at 4% or $437,127 at 6%; with 50% employer match about $437,127 at 4% or $291,418 at 6%; with 100% employer match about $327,845 at 4% or $218,564 at 6%. |
| Generation Bio Co. Health and Welfare Benefit Plan | - | 89 | - | - | - |
| 2023 | 2 | 174 | $15,794,761 | $5,438,072 | $31,253iApproximate average salary by contribution assumption: employee only about $781,332 at 4% or $520,888 at 6%; with 50% employer match about $520,888 at 4% or $347,259 at 6%; with 100% employer match about $390,666 at 4% or $260,444 at 6%. |
| Generation Bio 401(K) Plan | - | 174 | $15,794,761 | $5,438,072 | $31,253iApproximate average salary by contribution assumption: employee only about $781,332 at 4% or $520,888 at 6%; with 50% employer match about $520,888 at 4% or $347,259 at 6%; with 100% employer match about $390,666 at 4% or $260,444 at 6%. |
| Generation Bio Co. Health and Welfare Benefit Plan | - | 111 | - | - | - |
| 2022 | 2 | 153 | $8,807,178 | $3,569,343 | $23,329iApproximate average salary by contribution assumption: employee only about $583,226 at 4% or $388,817 at 6%; with 50% employer match about $388,817 at 4% or $259,212 at 6%; with 100% employer match about $291,613 at 4% or $194,409 at 6%. |
| Generation Bio 401(K) Plan | - | 153 | $8,807,178 | $3,569,343 | $23,329iApproximate average salary by contribution assumption: employee only about $583,226 at 4% or $388,817 at 6%; with 50% employer match about $388,817 at 4% or $259,212 at 6%; with 100% employer match about $291,613 at 4% or $194,409 at 6%. |
| Generation Bio Co. Health and Welfare Benefit Plan | - | 153 | - | - | - |
| 2021 | 2 | 157 | $7,375,138 | $4,655,467 | $29,653iApproximate average salary by contribution assumption: employee only about $741,316 at 4% or $494,211 at 6%; with 50% employer match about $494,211 at 4% or $329,474 at 6%; with 100% employer match about $370,658 at 4% or $247,105 at 6%. |
| Generation Bio 401(K) Plan | - | 142 | $7,375,138 | $4,655,467 | $32,785iApproximate average salary by contribution assumption: employee only about $819,624 at 4% or $546,416 at 6%; with 50% employer match about $546,416 at 4% or $364,278 at 6%; with 100% employer match about $409,812 at 4% or $273,208 at 6%. |
| Generation Bio Co. Health and Welfare Benefit Plan | - | 157 | - | - | - |
| 2020 | 1 | 69 | $2,390,092 | $883,864 | $12,810iApproximate average salary by contribution assumption: employee only about $320,241 at 4% or $213,494 at 6%; with 50% employer match about $213,494 at 4% or $142,329 at 6%; with 100% employer match about $160,120 at 4% or $106,747 at 6%. |
| Generation Bio 401(K) Plan | - | 69 | $2,390,092 | $883,864 | $12,810iApproximate average salary by contribution assumption: employee only about $320,241 at 4% or $213,494 at 6%; with 50% employer match about $213,494 at 4% or $142,329 at 6%; with 100% employer match about $160,120 at 4% or $106,747 at 6%. |
| 2019 | 1 | 44 | $1,184,542 | $1,108,789 | $25,200iApproximate average salary by contribution assumption: employee only about $629,994 at 4% or $419,996 at 6%; with 50% employer match about $419,996 at 4% or $279,997 at 6%; with 100% employer match about $314,997 at 4% or $209,998 at 6%. |
| Generation Bio 401(K) Plan | - | 44 | $1,184,542 | $1,108,789 | $25,200iApproximate average salary by contribution assumption: employee only about $629,994 at 4% or $419,996 at 6%; with 50% employer match about $419,996 at 4% or $279,997 at 6%; with 100% employer match about $314,997 at 4% or $209,998 at 6%. |