Third Rock Ventures GP VI, L.P.

CIK 1977499 · last filed 2026-05-28

Third Rock Ventures GP VI, L.P. is a corporate insider who has filed 2 SEC Form 4 insider transactions across 1 company since 2024. The most recent filing shows the insider sold $4.5M of RAPP on May 28, 2026. Across all open-market trades the lifetime net is −$4.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $278.4M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$278.39M

Companies

1

Total Filings

2

Lifetime Open-Market Net

-$4.46M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
RAPP 10%+ Owner 7,249,743 $38.40 $278.39M -$4.46M 2 2026-05-28

Recent Filings

2 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-28 RAPP Sell (S) −111,432 -$4.46M EDGAR
2024-06-10 RAPP Conv (C) +45,124,002 $0 EDGAR
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.