Cullinan Therapeutics, Inc.

CGEM • NASDAQ

Cullinan Therapeutics, Inc. is a biotechnology company in the healthcare sector on NASDAQ, led by Nadim Ahmed, with a market cap of $704.2M. As of Q3 2025, 103% of shares are held by 141 institutional investors, with MPM Oncology Impact Management LP as the largest holder at 12.95%.

President and Chief Executive OfficerNadim Ahmed

Market Cap$704.2M

Biotechnology

Healthcare

Employees85.0

Websitecullinantherapeutics.com

Country

United States of America

Overview

Overview of institutional ownership in CGEM as of Q3 2025 with a market cap of $350.3M

All Institutions

Institutions: 141
Value Held: $362.2M
Shares Held: 61.1M
Avg Position: $2.6M
Median Position: $211.2K

Hedge Funds

Hedge Funds: 29
Value Held: $113.7M
Shares Held: 19.2M
Avg Position: $3.9M
Median Position: $336.4K

Ownership Breakdown

Institutional (non-HF)

70.92%

$248.5M

Hedge Funds

32.46%

$113.7M

Retail & Other

Based on market cap of $350.3M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in CGEM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
MPM Oncology Impact Management LP Institution	Christian Albrecht Wulf Von Schimmelmann Managing Partner	$45.4M 7.42% of portfolio	12.95% 7.6M shares	Q1 2021 Held for 4y 8m	$610.9M
L Lynx1 Capital Management LP Hedge Fund•Sector	Weston Agnew Nichols CIO	$34.2M 6.96% of portfolio	9.76% 5.8M shares	Q2 2024 Held for 1y 5m	$491.3M
B BVF INC/IL Institution	-	$34.1M 1.38% of portfolio	9.73% 5.8M shares	Q1 2021 Held for 4y 8m	$2.5B
B BlackRock, Inc. Institution	-	$24.7M 0.00% of portfolio	7.06% 4.2M shares	Q1 2021 Held for 4y 8m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$17.5M 0.00% of portfolio	4.98% 2.9M shares	Q1 2021 Held for 4y 8m	$6.69T
DEERFIELD MANAGEMENT CO /NY Hedge Fund•Long/Short	James Edward Flynn President	$17.4M 0.29% of portfolio	4.95% 2.9M shares	Q1 2024 Held for 1y 8m	$6.0B
B Blue Owl Capital Holdings LP Institution	-	$14.9M 4.67% of portfolio	4.25% 2.5M shares	Q4 2023 Held for 1y 11m	$318.8M
K Kynam Capital Management, LP Hedge Fund•Long/Short	Jared Joseph Keller COO	$13.7M 1.02% of portfolio	3.90% 2.3M shares	Q4 2024 Held for 11 months	$1.3B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$11.8M 0.01% of portfolio	3.36% 2.0M shares	Q1 2021 Held for 4y 8m	$122.08B
ORBIMED ADVISORS LLC Hedge Fund•Sector	Sam Block Iii CFO	$11.4M 0.28% of portfolio	3.26% 1.9M shares	Q1 2021 Held for 4y 8m	$4.1B

Net Capital Flow

Institutional buying and selling activity for CGEM in Q3 2025

Traded: −$12.2M
Buyers: 82
Sellers: 61
Total Bought: +$29.0M
Total Sold: −$41.2M
Avg Position: $2.2M

Biggest Buyers

Institution	Net Bought	Current Position
L Lynx1 Capital Management LP Hedge Fund•Sector	+$8.1M +1.4M shares	$34.2M 5.8M shares
GOLDMAN SACHS GROUP INC Institution	+$1.7M +281.8K shares	$5.8M 984.0K shares
J JANE STREET GROUP, LLC Institution	+$1.5M +252.0K shares	$1.8M 300.9K shares
C Cubist Systematic Strategies, LLC Institution	+$1.3M +222.3K shares	$1.3M 222.3K shares
K Kynam Capital Management, LP Hedge Fund•Long/Short	+$1.2M +206.2K shares	$13.7M 2.3M shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$1.2M +194.9K shares	$3.1M 529.4K shares
J Jump Financial, LLC Institution	+$1.2M +194.5K shares	$1.2M 194.5K shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$1.0M +177.0K shares	$1.2M 197.9K shares
A Assenagon Asset Management S.A. Institution	+$994.0K +167.6K shares	$1.1M 177.7K shares
MORGAN STANLEY RIA/Wealth	+$937.3K +158.1K shares	$2.4M 400.2K shares

Biggest Sellers

Institution	Net Sold	Current Position
Patient Square Capital LP Private Equity	−$6.5M −868.9K shares	Sold Off 0 shares
DEERFIELD MANAGEMENT CO /NY Hedge Fund•Long/Short	−$5.5M −928.5K shares	$17.4M 2.9M shares
Rock Springs Capital Management LP Hedge Fund•Sector	−$5.0M −668.2K shares	Sold Off 0 shares
FRANKLIN RESOURCES INC Institution	−$4.8M −812.1K shares	$8.4M 1.4M shares
Foresite Capital Management VI LLC Venture Capital	−$4.5M −594.0K shares	Sold Off 0 shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$3.7M −629.3K shares	$11.8M 2.0M shares
Marshall Wace LLP Institution	−$2.0M −331.1K shares	$1.8M 295.4K shares
Verition Fund Management LLC Hedge Fund•Multi-Strategy	−$1.1M −139.7K shares	Sold Off 0 shares
Caption Management, LLC Hedge Fund•Long/Short	−$871.9K −147.0K shares	$168.3K 28.4K shares
UBS Group AG Institution	−$730.1K −123.1K shares	$1.1M 188.2K shares

Entry and Exit Activity

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

New Positions: 11
New Value: $1.5M
Exited Positions: 25
Exited Value: $19.1M

New Positions

Institution	Position Value
Susquehanna Portfolio Strategies, LLC Private Equity	$738.5K 124.5K shares
Quantinno Capital Management LP Hedge Fund•Market Neutral	$293.7K 49.5K shares
Magnetar Financial LLC Hedge Fund•Multi-Strategy	$155.7K 26.3K shares
P Pale Fire Capital SE Institution	$86.7K 14.6K shares
Q Quadrature Capital Ltd Institution	$82.7K 13.9K shares
Compass Ion Advisors, LLC RIA/Wealth	$82.5K 13.9K shares
I Inscription Capital, LLC RIA/Wealth	$66.9K 11.3K shares
Federation des caisses Desjardins du Quebec Fund of Funds	$35.6K 6.0K shares
O Optiver Holding B.V. Institution	$2.8K 464.0 shares
Hartland & Co., LLC RIA/Wealth	$291.0 49.0 shares

Exited Positions

Institution	Previous Position
Patient Square Capital LP Private Equity	$6.5M 868.9K shares
Rock Springs Capital Management LP Hedge Fund•Sector	$5.0M 668.2K shares
Foresite Capital Management VI LLC Venture Capital	$4.5M 594.0K shares
Verition Fund Management LLC Hedge Fund•Multi-Strategy	$1.1M 139.7K shares
N NEOS Investment Management LLC Institution	$321.5K 42.7K shares
T TEMA ETFS LLC Institution	$321.5K 42.7K shares
HighVista Strategies LLC Fund of Funds	$240.2K 31.9K shares
M Man Group plc Institution	$168.2K 22.3K shares
MARTINGALE ASSET MANAGEMENT L P Long Only Manager	$157.6K 20.9K shares
Palumbo Wealth Management LLC RIA/Wealth	$128.1K 17.0K shares

Options Activity

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

Call Positions: 1
Call Value: $63.5K
Put Positions: 4
Put Value: $85.4K

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$63.5K 107.0 contracts

Put Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$85.4K 144.0 contracts
Caption Management, LLC Hedge Fund•Long/Short	- - contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	- - contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	- - contracts

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
MPM Oncology Impact Management LP Institution	Christian Albrecht Wulf Von Schimmelmann Managing Partner	7.42% $45.4M	12.95% 7.6M shares	Q1 2021 Held for 4y 8m	$610.9M
L Lynx1 Capital Management LP Hedge Fund•Sector	Weston Agnew Nichols CIO	6.96% $34.2M	9.76% 5.8M shares	Q2 2024 Held for 1y 5m	$491.3M
B Blue Owl Capital Holdings LP Institution	-	4.67% $14.9M	4.25% 2.5M shares	Q4 2023 Held for 1y 11m	$318.8M
B BVF INC/IL Institution	-	1.38% $34.1M	9.73% 5.8M shares	Q1 2021 Held for 4y 8m	$2.5B
N Nextech Invest, Ltd. Institution	-	1.03% $6.8M	1.93% 1.1M shares	Q1 2025 Held for 8 months	$657.0M
K Kynam Capital Management, LP Hedge Fund•Long/Short	Jared Joseph Keller COO	1.02% $13.7M	3.90% 2.3M shares	Q4 2024 Held for 11 months	$1.3B
VR Adviser, LLC Venture Capital	Jessica Tong Baron CFO	0.46% $8.2M	2.34% 1.4M shares	Q2 2024 Held for 1y 5m	$1.8B
T TWIN FOCUS CAPITAL PARTNERS, LLC Family Office	David Angelo Daglio CIO	0.45% $3.5M	1.01% 595.5K shares	Q2 2024 Held for 1y 5m	$786.9M
C Corton Capital Inc. Institution	-	0.40% $160.8K	0.05% 27.1K shares	Q4 2024 Held for 11 months	$40.6M
S Siren, L.L.C. Institution	-	0.30% $7.1M	2.02% 1.2M shares	Q3 2024 Held for 1y 2m	$2.4B

Hedge Fund Spotlight

Discover hedge funds investing in CGEM

TWO SIGMA INVESTMENTS LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerScott David Hoffman

Portfolio Value: $62.0B
Positions: 3,252
Last Reported: Q3 2025

Sector Allocation

Position in Cullinan Therapeutics, Inc.

Market Value: $353.9K
Shares Held: 59.7K
Portfolio Weight: 0.00%
Owned Since: 2023-Q4

Top Holding	Sector	Market Value	Weight
1 SPDR S&P 500 ETF Trust SPY	ETF ETF	$680.4M	1.10%
2 Financial Select Sector SPDR Fund XLF	ETF ETF	$582.6M	0.94%
3 Consumer Staples Select Sector SPDR Fund XLP	ETF ETF	$489.6M	0.79%