Rapport Therapeutics, Inc.

RAPP • NASDAQ

Rapport Therapeutics, Inc. is a publicly traded company on NASDAQ, led by Abraham N. Ceesay, with a market cap of $1.4B. As of Q3 2025, 107% of shares are held by 123 institutional investors, with TRV GP V, LLC as the largest holder at 15.47%.

CEOAbraham N. Ceesay

Market Cap$1.4B

Websiterapportrx.com

Overview

Overview of institutional ownership in RAPP as of Q3 2025 with a market cap of $1.4B

All Institutions

Institutions: 123
Value Held: $1.5B
Shares Held: 49.3M
Avg Position: $11.9M
Median Position: $627.9K

Hedge Funds

Hedge Funds: 25
Value Held: $229.8M
Shares Held: 7.7M
Avg Position: $9.2M
Median Position: $2.2M

Ownership Breakdown

Institutional (non-HF)

90.08%

$1.2B

Hedge Funds

16.78%

$229.8M

Retail & Other

Based on market cap of $1.4B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in RAPP as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
T TRV GP V, LLC Institution	-	$211.9M 59.95% of portfolio	15.47% 7.1M shares	Q4 2024 Held for 11 months	$353.5M
FMR LLC Institution	-	$205.4M 0.01% of portfolio	15.00% 6.9M shares	Q2 2024 Held for 1y 5m	$1.92T
A ARCH VENTURE CORP Institution	-	$110.7M 22.49% of portfolio	8.09% 3.7M shares	Q2 2024 Held for 1y 5m	$492.4M
C Capital International Investors Institution	-	$101.1M 0.02% of portfolio	7.38% 3.4M shares	Q2 2024 Held for 1y 5m	$615.90B
C Cormorant Asset Management, LLC Hedge Fund•Long/Short	Bihua Chen CEO	$94.8M 7.39% of portfolio	6.92% 3.2M shares	Q2 2024 Held for 1y 5m	$1.3B
GOLDMAN SACHS GROUP INC Institution	David M. Solomon CEO	$71.9M 0.01% of portfolio	5.25% 2.4M shares	Q3 2024 Held for 1y 2m	$691.34B
S Sofinnova Ventures Inc Venture Capital	James Irvin Healy Managing Partner	$57.8M 3.55% of portfolio	4.22% 1.9M shares	Q2 2024 Held for 1y 5m	$1.6B
JOHNSON & JOHNSON Institution	Joaquin Duato CEO	$53.0M 10.52% of portfolio	3.87% 1.8M shares	Q2 2024 Held for 1y 5m	$503.7M
VANGUARD GROUP INC Institution	Salim Ramji CEO	$48.3M 0.00% of portfolio	3.53% 1.6M shares	Q2 2024 Held for 1y 5m	$6.69T
B BlackRock, Inc. Institution	-	$46.6M 0.00% of portfolio	3.40% 1.6M shares	Q3 2024 Held for 1y 2m	$5.67T

Net Capital Flow

Institutional buying and selling activity for RAPP in Q3 2025

Traded: +$336.1M
Buyers: 87
Sellers: 29
Total Bought: +$398.2M
Total Sold: −$62.2M
Avg Position: $11.1M

Biggest Buyers

Institution	Net Bought	Current Position
FMR LLC Institution	+$42.8M +1.4M shares	$205.4M 6.9M shares
GOLDMAN SACHS GROUP INC Institution	+$35.3M +1.2M shares	$71.9M 2.4M shares
B BAKER BROS. ADVISORS LP Hedge Fund•Sector	+$29.6M +997.0K shares	$45.9M 1.5M shares
Vestal Point Capital, LP Hedge Fund•Long/Short	+$28.2M +950.0K shares	$28.2M 950.0K shares
Polar Capital Holdings Plc Long Only Manager	+$27.9M +939.0K shares	$27.9M 939.0K shares
C Capital International Investors Institution	+$23.8M +800.0K shares	$101.1M 3.4M shares
S Siren, L.L.C. Institution	+$20.0M +675.0K shares	$31.3M 1.1M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	+$19.3M +648.4K shares	$26.5M 892.3K shares
VANGUARD GROUP INC Institution	+$15.4M +519.0K shares	$48.3M 1.6M shares
A ADAGE CAPITAL PARTNERS GP LLC Institution	+$13.4M +450.0K shares	$13.4M 450.0K shares

Biggest Sellers

Institution	Net Sold	Current Position
JOHNSON & JOHNSON Institution	−$21.2M −713.5K shares	$53.0M 1.8M shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	−$12.6M −423.1K shares	$32.7M 1.1M shares
ALLIANCEBERNSTEIN L.P. Long Only Manager	−$8.9M −299.1K shares	$25.4M 855.6K shares
SECTORAL ASSET MANAGEMENT INC Venture Capital	−$4.1M −136.4K shares	$1.3M 43.5K shares
Logos Global Management LP Hedge Fund•Long/Short	−$2.4M −208.9K shares	Sold Off 0 shares
Affinity Asset Advisors, LLC Hedge Fund•Long/Short	−$2.3M −199.6K shares	Sold Off 0 shares
Woodline Partners LP Hedge Fund•Long/Short	−$2.1M −185.0K shares	Sold Off 0 shares
T TD ASSET MANAGEMENT INC Institution	−$1.8M −59.9K shares	$4.1M 137.0K shares
DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven	−$1.5M −131.3K shares	Sold Off 0 shares
S Sofinnova Ventures Inc Venture Capital	−$1.4M −48.0K shares	$57.8M 1.9M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited RAPP in Q3 2025

New Positions: 45
New Value: $140.0M
Exited Positions: 9
Exited Value: $9.8M

New Positions

Institution	Position Value
Vestal Point Capital, LP Hedge Fund•Long/Short	$28.2M 950.0K shares
Polar Capital Holdings Plc Long Only Manager	$27.9M 939.0K shares
A ADAGE CAPITAL PARTNERS GP LLC Institution	$13.4M 450.0K shares
FRANKLIN RESOURCES INC Institution	$7.4M 250.6K shares
Burkehill Global Management, LP Hedge Fund•Event Driven	$7.4M 250.0K shares
SILVERARC CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	$6.1M 203.9K shares
Sio Capital Management, LLC Hedge Fund•Long/Short	$5.5M 185.3K shares
Invesco Ltd. ETF Provider	$4.7M 158.0K shares
S SPHERA FUNDS MANAGEMENT LTD. Institution	$4.7M 157.5K shares
Eversept Partners, LLC Hedge Fund•Long/Short	$4.3M 143.6K shares

Exited Positions

Institution	Previous Position
Logos Global Management LP Hedge Fund•Long/Short	$2.4M 208.9K shares
Affinity Asset Advisors, LLC Hedge Fund•Long/Short	$2.3M 199.6K shares
Woodline Partners LP Hedge Fund•Long/Short	$2.1M 185.0K shares
DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven	$1.5M 131.3K shares
Deep Track Capital, LP Hedge Fund•Long/Short	$1.1M 98.2K shares
L Longwood Capital Partners LLC Institution	$227.4K 20.0K shares
INTECH INVESTMENT MANAGEMENT LLC Long Only Manager	$130.3K 11.5K shares
KENNEDY CAPITAL MANAGEMENT, INC. Long Only Manager	$127.7K 11.2K shares
Parallel Advisors, LLC RIA/Wealth	$569.0 50.0 shares

Options Activity

Institutions with the largest Call and Put options positions in RAPP as of Q3 2025

Call Positions: 4
Call Value: $7.4M
Put Positions: 5
Put Value: $5.3M

Call Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$5.5M 1.9K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.5M 491.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$412.8K 139.0 contracts
B Belvedere Trading LLC Institution	$8.9K 3.0 contracts

Put Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$1.5M 511.0 contracts
Caption Management, LLC Hedge Fund•Long/Short	$1.5M 500.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.1M 360.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.0M 346.0 contracts
B Belvedere Trading LLC Institution	$202.0K 68.0 contracts

Most Committed Institutions

Institutions with RAPP as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
T TRV GP V, LLC Institution	-	59.95% $211.9M	15.47% 7.1M shares	Q4 2024 Held for 11 months	$353.5M
T TRV GP VI, LLC Institution	-	26.26% $28.8M	2.10% 969.2K shares	Q4 2024 Held for 11 months	$109.6M
A ARCH VENTURE CORP Institution	-	22.49% $110.7M	8.09% 3.7M shares	Q2 2024 Held for 1y 5m	$492.4M
JOHNSON & JOHNSON Institution	Joaquin Duato CEO	10.52% $53.0M	3.87% 1.8M shares	Q2 2024 Held for 1y 5m	$503.7M
C Cormorant Asset Management, LLC Hedge Fund•Long/Short	Bihua Chen CEO	7.39% $94.8M	6.92% 3.2M shares	Q2 2024 Held for 1y 5m	$1.3B
S Sofinnova Ventures Inc Venture Capital	James Irvin Healy Managing Partner	3.55% $57.8M	4.22% 1.9M shares	Q2 2024 Held for 1y 5m	$1.6B
Vestal Point Capital, LP Hedge Fund•Long/Short	Ryan Christopher Wilder CIO	1.43% $28.2M	2.06% 950.0K shares	Q3 2025 Held for 2 months	$2.0B
Sio Capital Management, LLC Hedge Fund•Long/Short	Judah Zvi Drillick CEO	1.39% $5.5M	0.40% 185.3K shares	Q3 2025 Held for 2 months	$395.2M
S Siren, L.L.C. Institution	-	1.31% $31.3M	2.28% 1.1M shares	Q3 2024 Held for 1y 2m	$2.4B
S SPHERA FUNDS MANAGEMENT LTD. Institution	-	1.12% $4.7M	0.34% 157.5K shares	Q3 2025 Held for 2 months	$416.3M