undamentalytics Newsletter

Rapport Therapeutics, Inc.: which funds bought and sold

Institutions that bought and sold Rapport Therapeutics shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 82 institutions that filed 13F reports for both quarters added to or opened positions in Rapport Therapeutics, and 58 cut or closed them. Together they sold a net 1.2M shares, −2.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 1.2M shares (−5.2%); index fund managers were net buyers of 452K shares (+7.1%). 26 opened a new position and 12 sold out entirely.

Bought, Q2 2026 82 institutions, 26 of them new holders Sold, Q2 2026 58 institutions, 12 of them sold out
Net change, all compared −1.2M shares (−2.4%)
Net change, active managers −1.2M shares (−5.2%), 17 bought, 17 sold

Buyers versus sellers

institutions compared, 169
Active managers and hedge funds 17 bought · 17 sold · −1.2M
Index fund managers 9 bought · 1 sold · +452K
Other institutions 56 bought · 40 sold · −519K

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Algert Global LLC Hedge fund +224K New position 224K $9.3M
Blackrock, Inc. Index funds +194K +7.7% 2.7M $113M
Candriam S.C.A. +162K +87.0% 348K $14.5M
Dimensional Fund Advisors LP +138K +61.3% 362K $15.1M
Morgan Stanley +132K +79.3% 298K $12.4M
Perceptive Advisors LLC Hedge fund +99K +14.8% 773K $32.2M
Woodline Partners LP Hedge fund +98K New position 98K $4.1M
Walleye Capital LLC Hedge fund +91K +816.4% 102K $4.3M
Citadel Advisors LLC Hedge fund +82K New position 82K $3.4M
Orbimed Advisors LLC +77K New position 77K $3.2M
Geode Capital Management, LLC Index funds +72K +10.0% 793K $33.1M
Stempoint Capital LP +67K New position 67K $2.8M
State Street Corp Index funds +59K +7.8% 819K $34.1M
Jane Street Group, LLC +56K New position 56K $2.3M
Allspring Global Investments Holdings, LLC +51K +736.8% 57K $2.4M
Invesco Ltd. +43K +25.3% 215K $9M
D. E. Shaw & Co., Inc. Hedge fund +39K +22.4% 215K $9M
Northern Trust Corp Index funds +39K +16.5% 277K $11.6M
Vanguard Portfolio Management LLC Index funds +39K +12.2% 360K $15M
Trexquant Investment LP Hedge fund +33K +157.0% 54K $2.2M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Trv Gp V, LLC −855K −12.0% 6.3M $262M
Vestal Point Capital, LP Hedge fund −706K −49.2% 730K $30.4M
Cormorant Asset Management, LP Hedge fund −300K −10.1% 2.7M $111M
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC −275K −29.9% 644K $26.8M
T. Rowe Price Investment Management, Inc. Active manager −227K −36.6% 393K $16.4M
Capital International Investors Active manager −176K −5.7% 2.9M $122M
Millennium Management LLC Hedge fund −165K −51.5% 155K $6.5M
Freestone Grove Partners LP Hedge fund −128K Sold out 0 —
Price T Rowe Associates Inc Active manager −79K −9.1% 787K $32.8M
Sio Capital Management, LLC −59K −16.1% 308K $12.8M
Citigroup Inc −54K −69.1% 24K $1M
Bank Of America Corp −35K −31.4% 76K $3.2M
Alliancebernstein L.P. Active manager −34K −4.7% 693K $21.7M
Polar Capital Holdings PLC Active manager −34K −2.1% 1.6M $67M
Goldman Sachs Group Inc −32K −1.1% 2.9M $121M
Ensign Peak Advisors, Inc −29K −14.8% 166K $6.9M
Prudential Financial Inc −28K −24.3% 87K $3.6M
Sectoral Asset Management Inc −25K Sold out 0 —
Y-Intercept (Hong Kong) Ltd −17K −46.4% 19K $799,606
Sei Investments Co −15K −47.1% 16K $678,971

New positions

largest by value
InstitutionSharesValue June 30, 2026
Algert Global LLCHedge fund 224K $9.3M
Woodline Partners LPHedge fund 98K $4.1M
Citadel Advisors LLCHedge fund 82K $3.4M
Orbimed Advisors LLC 77K $3.2M
Stempoint Capital LP 67K $2.8M
Jane Street Group, LLC 56K $2.3M
Integrated Quantitative Investments LLC 30K $1.3M
Ellsworth Advisors, LLC 25K $979,842
Engineers Gate Manager LPHedge fund 21K $888,154
Quadrature Capital LtdHedge fund 6,359 $264,980

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Freestone Grove Partners LPHedge fund 128K $4M
Sectoral Asset Management Inc 25K $835,005
Soleus Capital Management, L.P.Hedge fund 10K $312,900
Gsa Capital Partners LLP 9,928 $311,000
Renaissance Technologies LLCHedge fund 9,700 $303,513
Verition Fund Management LLCHedge fund 7,531 $235,645
Mangrove Partners Im, LLCHedge fund 6,753 $211,301
Quantbot Technologies LPHedge fund 6,493 $203,166
SG Americas Securities, LLC 3,776 $118,000
Simplex Trading, LLC 344 $10,763

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
160
Ten largest holders
65.7%
of 13F-reported shares
Index fund managers
13.3%
of 13F-reported shares
Active managers and hedge funds
42.3%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 17 17 6 6 −1.2M −5.2%
Index fund managers 9 1 0 0 +452K +7.1%
Other institutions 56 40 20 6 −519K −2.2%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

← Back to Rapport Therapeutics, Inc. · Insiders · Politicians