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Who owns Rapport Therapeutics (RAPP) stock

150 funds reported Rapport Therapeutics (RAPP) shares in their latest 13F filings, worth $2.2B in all. The largest holder is FMR LLC ($299M). Last quarter 72 funds added to their stakes and 55 cut them.

Largest holders of RAPP (13F)Largest holders of RAPP (13F)FMR LLC$299MTRV GP V, LLC$262MArch Venture Management, LLC$155MCapital International Investors$122MGoldman Sachs Group$121MBlackRock$113MCormorant Asset Management, LP$111MSofinnova Investments$79.4MPolar Capital Holdings$67.0MBaker Bros. Advisors LP$64.5M

Largest holders (13F)

FundSharesValueChangeQuarter
FMR LLC7,172,894$299Mincrease2026-06-30
TRV GP V, LLC6,280,525$262Mdecrease2026-06-30
Arch Venture Management, LLC3,728,738$155Munchanged2026-06-30
Capital International Investors2,921,958$122Mdecrease2026-06-30
Goldman Sachs Group2,910,449$121Mdecrease2026-06-30
BlackRock2,699,786$113Mincrease2026-06-30
Cormorant Asset Management, LP2,657,521$111Mdecrease2026-06-30
Sofinnova Investments1,904,408$79.4Munchanged2026-06-30
Polar Capital Holdings1,608,514$67.0Mdecrease2026-06-30
Baker Bros. Advisors LP1,547,090$64.5Munchanged2026-06-30
Johnson & Johnson1,784,517$60.0Munchanged2026-09-30
Vanguard Capital Management LLC1,346,512$56.1Mincrease2026-06-30
Vanguard Group1,817,757$55.2Mincrease2025-12-31
TRV GP VI, LLC969,218$40.4Munchanged2026-06-30
State Street818,712$34.1Mincrease2026-06-30

Rapport Therapeutics' latest quarter

Rapport Therapeutics, Q1 2026: revenue $20.0M, operating margin -121.1%, net loss $19.9M, operating cash flow −$13.1M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most RAPP stock?

By the latest 13F filings: FMR LLC ($299M); TRV GP V, LLC ($262M); Arch Venture Management, LLC ($155M); Capital International Investors ($122M); Goldman Sachs Group ($121M).

What is the short interest in RAPP?

3,051,500 shares were sold short at the 2026-10-15 settlement, -4.46% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.