Civic Intelligence

Third Rock Ventures LLC

Plan context: Third Rock 401K Plan

EIN 20-8667706 • Boston, MA • 18 filings • 2 plans

201 Brookline AvenueSuite 1401Boston, MA 02215
Current Snapshot

Latest Year

2024

2024 Participants

70

2024 Assets

$15,259,600

2024 Contributions

$2,355,449

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$15,259,600$7,629,800$0200820162024YearValue
$15,259,600Latest year 2024

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

109550200720162024YearValue
70Latest year 2024

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 / FilingFilingsParticipantsAssetsContributionsContrib./Participant
2024170$15,259,600$2,355,449$33,649iApproximate average salary by contribution assumption: employee only about $841,232 at 4% or $560,821 at 6%; with 50% employer match about $560,821 at 4% or $373,881 at 6%; with 100% employer match about $420,616 at 4% or $280,411 at 6%.
Third Rock 401K Plan-70$15,259,600$2,355,449$33,649iApproximate average salary by contribution assumption: employee only about $841,232 at 4% or $560,821 at 6%; with 50% employer match about $560,821 at 4% or $373,881 at 6%; with 100% employer match about $420,616 at 4% or $280,411 at 6%.
20231109$11,755,663$1,966,898$18,045iApproximate average salary by contribution assumption: employee only about $451,123 at 4% or $300,749 at 6%; with 50% employer match about $300,749 at 4% or $200,499 at 6%; with 100% employer match about $225,562 at 4% or $150,374 at 6%.
Third Rock 401K Plan-109$11,755,663$1,966,898$18,045iApproximate average salary by contribution assumption: employee only about $451,123 at 4% or $300,749 at 6%; with 50% employer match about $300,749 at 4% or $200,499 at 6%; with 100% employer match about $225,562 at 4% or $150,374 at 6%.
2022198$9,040,633$1,629,884$16,631iApproximate average salary by contribution assumption: employee only about $415,787 at 4% or $277,191 at 6%; with 50% employer match about $277,191 at 4% or $184,794 at 6%; with 100% employer match about $207,893 at 4% or $138,596 at 6%.
Third Rock 401K Plan-98$9,040,633$1,629,884$16,631iApproximate average salary by contribution assumption: employee only about $415,787 at 4% or $277,191 at 6%; with 50% employer match about $277,191 at 4% or $184,794 at 6%; with 100% employer match about $207,893 at 4% or $138,596 at 6%.
2021195$10,677,348$1,586,140$16,696iApproximate average salary by contribution assumption: employee only about $417,405 at 4% or $278,270 at 6%; with 50% employer match about $278,270 at 4% or $185,513 at 6%; with 100% employer match about $208,703 at 4% or $139,135 at 6%.
Third Rock 401K Plan-95$10,677,348$1,586,140$16,696iApproximate average salary by contribution assumption: employee only about $417,405 at 4% or $278,270 at 6%; with 50% employer match about $278,270 at 4% or $185,513 at 6%; with 100% employer match about $208,703 at 4% or $139,135 at 6%.
2020182$8,619,079$1,492,338$18,199iApproximate average salary by contribution assumption: employee only about $454,981 at 4% or $303,321 at 6%; with 50% employer match about $303,321 at 4% or $202,214 at 6%; with 100% employer match about $227,491 at 4% or $151,660 at 6%.
Third Rock 401K Plan-82$8,619,079$1,492,338$18,199iApproximate average salary by contribution assumption: employee only about $454,981 at 4% or $303,321 at 6%; with 50% employer match about $303,321 at 4% or $202,214 at 6%; with 100% employer match about $227,491 at 4% or $151,660 at 6%.
2019185$6,808,952$1,338,978$15,753iApproximate average salary by contribution assumption: employee only about $393,817 at 4% or $262,545 at 6%; with 50% employer match about $262,545 at 4% or $175,030 at 6%; with 100% employer match about $196,909 at 4% or $131,272 at 6%.
Third Rock 401K Plan-85$6,808,952$1,338,978$15,753iApproximate average salary by contribution assumption: employee only about $393,817 at 4% or $262,545 at 6%; with 50% employer match about $262,545 at 4% or $175,030 at 6%; with 100% employer match about $196,909 at 4% or $131,272 at 6%.
2018173$4,492,791$1,193,915$16,355iApproximate average salary by contribution assumption: employee only about $408,875 at 4% or $272,583 at 6%; with 50% employer match about $272,583 at 4% or $181,722 at 6%; with 100% employer match about $204,438 at 4% or $136,292 at 6%.
Third Rock 401K Plan-73$4,492,791$1,193,915$16,355iApproximate average salary by contribution assumption: employee only about $408,875 at 4% or $272,583 at 6%; with 50% employer match about $272,583 at 4% or $181,722 at 6%; with 100% employer match about $204,438 at 4% or $136,292 at 6%.
2017162$4,033,046$868,906$14,015iApproximate average salary by contribution assumption: employee only about $350,365 at 4% or $233,577 at 6%; with 50% employer match about $233,577 at 4% or $155,718 at 6%; with 100% employer match about $175,183 at 4% or $116,788 at 6%.
Third Rock 401K Plan-62$4,033,046$868,906$14,015iApproximate average salary by contribution assumption: employee only about $350,365 at 4% or $233,577 at 6%; with 50% employer match about $233,577 at 4% or $155,718 at 6%; with 100% employer match about $175,183 at 4% or $116,788 at 6%.
2016152$2,721,381$786,767$15,130iApproximate average salary by contribution assumption: employee only about $378,253 at 4% or $252,169 at 6%; with 50% employer match about $252,169 at 4% or $168,113 at 6%; with 100% employer match about $189,127 at 4% or $126,084 at 6%.
Third Rock 401K Plan-52$2,721,381$786,767$15,130iApproximate average salary by contribution assumption: employee only about $378,253 at 4% or $252,169 at 6%; with 50% employer match about $252,169 at 4% or $168,113 at 6%; with 100% employer match about $189,127 at 4% or $126,084 at 6%.
2015146$2,025,670$621,701$13,515iApproximate average salary by contribution assumption: employee only about $337,881 at 4% or $225,254 at 6%; with 50% employer match about $225,254 at 4% or $150,169 at 6%; with 100% employer match about $168,940 at 4% or $112,627 at 6%.
Third Rock 401K Plan-46$2,025,670$621,701$13,515iApproximate average salary by contribution assumption: employee only about $337,881 at 4% or $225,254 at 6%; with 50% employer match about $225,254 at 4% or $150,169 at 6%; with 100% employer match about $168,940 at 4% or $112,627 at 6%.
2014128$1,519,319$294,307$10,511iApproximate average salary by contribution assumption: employee only about $262,774 at 4% or $175,183 at 6%; with 50% employer match about $175,183 at 4% or $116,788 at 6%; with 100% employer match about $131,387 at 4% or $87,591 at 6%.
Third Rock 401K Plan-28$1,519,319$294,307$10,511iApproximate average salary by contribution assumption: employee only about $262,774 at 4% or $175,183 at 6%; with 50% employer match about $175,183 at 4% or $116,788 at 6%; with 100% employer match about $131,387 at 4% or $87,591 at 6%.
2013123$1,198,571$295,267$12,838iApproximate average salary by contribution assumption: employee only about $320,942 at 4% or $213,962 at 6%; with 50% employer match about $213,962 at 4% or $142,641 at 6%; with 100% employer match about $160,471 at 4% or $106,981 at 6%.
Third Rock 401K Plan-23$1,198,571$295,267$12,838iApproximate average salary by contribution assumption: employee only about $320,942 at 4% or $213,962 at 6%; with 50% employer match about $213,962 at 4% or $142,641 at 6%; with 100% employer match about $160,471 at 4% or $106,981 at 6%.
2012122$863,989$234,071$10,640iApproximate average salary by contribution assumption: employee only about $265,990 at 4% or $177,327 at 6%; with 50% employer match about $177,327 at 4% or $118,218 at 6%; with 100% employer match about $132,995 at 4% or $88,663 at 6%.
Third Rock 401K Plan-22$863,989$234,071$10,640iApproximate average salary by contribution assumption: employee only about $265,990 at 4% or $177,327 at 6%; with 50% employer match about $177,327 at 4% or $118,218 at 6%; with 100% employer match about $132,995 at 4% or $88,663 at 6%.
2011120$606,949$249,162$12,458iApproximate average salary by contribution assumption: employee only about $311,453 at 4% or $207,635 at 6%; with 50% employer match about $207,635 at 4% or $138,423 at 6%; with 100% employer match about $155,726 at 4% or $103,818 at 6%.
Third Rock 401K Plan-20$606,949$249,162$12,458iApproximate average salary by contribution assumption: employee only about $311,453 at 4% or $207,635 at 6%; with 50% employer match about $207,635 at 4% or $138,423 at 6%; with 100% employer match about $155,726 at 4% or $103,818 at 6%.
2010116$468,683$143,870$8,992iApproximate average salary by contribution assumption: employee only about $224,797 at 4% or $149,865 at 6%; with 50% employer match about $149,865 at 4% or $99,910 at 6%; with 100% employer match about $112,398 at 4% or $74,932 at 6%.
Third Rock 401K Plan-16$468,683$143,870$8,992iApproximate average salary by contribution assumption: employee only about $224,797 at 4% or $149,865 at 6%; with 50% employer match about $149,865 at 4% or $99,910 at 6%; with 100% employer match about $112,398 at 4% or $74,932 at 6%.
2009122$269,635$106,237$4,829iApproximate average salary by contribution assumption: employee only about $120,724 at 4% or $80,483 at 6%; with 50% employer match about $80,483 at 4% or $53,655 at 6%; with 100% employer match about $60,362 at 4% or $40,241 at 6%.
Third Rock 401K Plan-22$269,635$106,237$4,829iApproximate average salary by contribution assumption: employee only about $120,724 at 4% or $80,483 at 6%; with 50% employer match about $80,483 at 4% or $53,655 at 6%; with 100% employer match about $60,362 at 4% or $40,241 at 6%.
2008118$105,940$133,771$7,432iApproximate average salary by contribution assumption: employee only about $185,793 at 4% or $123,862 at 6%; with 50% employer match about $123,862 at 4% or $82,575 at 6%; with 100% employer match about $92,897 at 4% or $61,931 at 6%.
Third Rock 401K Plan-18$105,940$133,771$7,432iApproximate average salary by contribution assumption: employee only about $185,793 at 4% or $123,862 at 6%; with 50% employer match about $123,862 at 4% or $82,575 at 6%; with 100% employer match about $92,897 at 4% or $61,931 at 6%.
200719$0$0-
Third Rock 401K Plan-9---