Climb Bio, Inc.

CLYM • XNAS

Climb Bio, Inc. is a pharmaceutical preparations company on XNAS, with a market cap of $143.2M. As of Q3 2025, 66% of shares are held by 66 institutional investors, with RA CAPITAL MANAGEMENT, LLC as the largest holder at 46.37%.

Market Cap$143.2M

PHARMACEUTICAL PREPARATIONS

Employees11.0

Websiteclimbbio.com

Overview

Overview of institutional ownership in CLYM as of Q3 2025 with a market cap of $136.2M

All Institutions

Institutions: 66
Value Held: $89.6M
Shares Held: 44.6M
Avg Position: $1.4M
Median Position: $107.5K

Hedge Funds

Hedge Funds: 13
Value Held: $72.9M
Shares Held: 36.2M
Avg Position: $5.6M
Median Position: $948.1K

Ownership Breakdown

Institutional (non-HF)

12.29%

$16.7M

Hedge Funds

53.49%

$72.9M

Retail & Other

34.22%

$46.6M

Based on market cap of $136.2M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in CLYM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
RA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Michael Saulnier CFO	$63.2M 0.78% of portfolio	46.37% 31.4M shares	Q3 2024 Held for 1y 2m	$8.1B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$2.6M 0.00% of portfolio	1.94% 1.3M shares	Q3 2024 Held for 1y 2m	$6.69T
Affinity Asset Advisors, LLC Hedge Fund•Long/Short	Jonathan Bo-Shing Chu Founder	$2.6M 0.27% of portfolio	1.92% 1.3M shares	Q3 2024 Held for 1y 2m	$983.0M
K Kynam Capital Management, LP Hedge Fund•Long/Short	Jared Joseph Keller COO	$2.1M 0.15% of portfolio	1.52% 1.0M shares	Q4 2024 Held for 11 months	$1.3B
T TANG CAPITAL MANAGEMENT LLC Institution	-	$2.0M 0.08% of portfolio	1.48% 1.0M shares	Q1 2025 Held for 8 months	$2.5B
B BlackRock, Inc. Institution	-	$1.5M 0.00% of portfolio	1.09% 735.5K shares	Q3 2024 Held for 1y 2m	$5.67T
P Peapod Lane Capital LLC Institution	-	$1.1M 1.01% of portfolio	0.83% 561.9K shares	Q1 2025 Held for 8 months	$111.8M
C CANTOR FITZGERALD, L. P. Institution	-	$1.1M 0.02% of portfolio	0.81% 547.2K shares	Q4 2024 Held for 11 months	$5.1B
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$1.1M 0.00% of portfolio	0.79% 537.1K shares	Q3 2024 Held for 1y 2m	$75.8B
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	Robert W Sharps President	$1.1M 0.00% of portfolio	0.78% 526.9K shares	Q3 2024 Held for 1y 2m	$912.31B

Net Capital Flow

Institutional buying and selling activity for CLYM in Q3 2025

Traded: −$10.3M
Buyers: 24
Sellers: 44
Total Bought: +$1.7M
Total Sold: −$12.0M
Avg Position: $1.1M

Biggest Buyers

Institution	Net Bought	Current Position
S SPHERA FUNDS MANAGEMENT LTD. Institution	+$452.2K +225.0K shares	$874.0K 434.8K shares
Marshall Wace LLP Institution	+$388.2K +193.2K shares	$462.1K 229.9K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$161.0K +80.1K shares	$286.3K 142.5K shares
L LPL Financial LLC Institution	+$122.6K +61.0K shares	$122.6K 61.0K shares
CITIZENS FINANCIAL GROUP INC/RI Institution	+$92.5K +46.0K shares	$92.5K 46.0K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$83.6K +41.6K shares	$1.1M 537.1K shares
SPRINGBOK CAPITAL MANAGEMENT, LLC Fund of Funds	+$81.8K +40.7K shares	$81.8K 40.7K shares
X XTX Topco Ltd Institution	+$58.7K +29.2K shares	$58.7K 29.2K shares
UBS Group AG Institution	+$46.1K +22.9K shares	$814.9K 405.4K shares
A Advisor Group Holdings, Inc. Institution	+$44.5K +22.3K shares	$45.1K 22.6K shares

Biggest Sellers

Institution	Net Sold	Current Position
C CANTOR FITZGERALD, L. P. Institution	−$3.9M −2.0M shares	$1.1M 547.2K shares
CITIGROUP INC Institution	−$2.6M −1.3M shares	$662.4K 329.5K shares
DIADEMA PARTNERS LP Hedge Fund•Long/Short	−$1.1M −565.6K shares	$274.3K 136.5K shares
Deep Track Capital, LP Hedge Fund•Long/Short	−$1.1M −530.3K shares	$1.0M 509.8K shares
S Shay Capital LLC Institution	−$532.7K −265.0K shares	$301.5K 150.0K shares
Affinity Asset Advisors, LLC Hedge Fund•Long/Short	−$402.0K −200.0K shares	$2.6M 1.3M shares
JPMORGAN CHASE & CO Institution	−$378.1K −188.1K shares	$44.2K 22.0K shares
B BlackRock, Inc. Institution	−$286.4K −142.5K shares	$1.5M 735.5K shares
GOLDMAN SACHS GROUP INC Institution	−$256.5K −127.6K shares	$148.2K 73.7K shares
P Persistent Asset Partners Ltd Institution	−$235.1K −117.0K shares	$56.7K 28.2K shares

Entry and Exit Activity

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

New Positions: 8
New Value: $346.7K
Exited Positions: 12
Exited Value: $583.2K

New Positions

Institution	Position Value
L LPL Financial LLC Institution	$122.6K 61.0K shares
CITIZENS FINANCIAL GROUP INC/RI Institution	$92.5K 46.0K shares
SPRINGBOK CAPITAL MANAGEMENT, LLC Fund of Funds	$81.8K 40.7K shares
Susquehanna Portfolio Strategies, LLC Private Equity	$36.7K 18.3K shares
FEDERATED INVESTORS INC /PA/ Long Only Manager	$8.9K 4.4K shares
HARBOUR INVESTMENTS, INC. RIA/Wealth	$4.0K 2.0K shares
SRS Capital Advisors, Inc. RIA/Wealth	$106.0 53.0 shares
A Advisory Services Network, LLC RIA/Wealth	$64.0 32.0 shares

Exited Positions

Institution	Previous Position
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$171.6K 138.4K shares
Y Y-Intercept Ltd Institution	$158.7K 128.0K shares
S Stonepine Capital Management, LLC Institution	$144.0K 116.1K shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	$35.8K 28.9K shares
Jain Global LLC Hedge Fund•Multi-Strategy	$31.9K 25.7K shares
H HRT FINANCIAL LLC Institution	$23.0K 18.5K shares
S SG Americas Securities, LLC Institution	$17.1K 13.8K shares
Point72 Ltd RIA/Wealth	$522.0 421.0 shares
WELLS FARGO & COMPANY/MN Institution	$303.0 244.0 shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	$248.0 200.0 shares

Options Activity

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

Call Positions: 0
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
No call positions found

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
P Peapod Lane Capital LLC Institution	-	1.01% $1.1M	0.83% 561.9K shares	Q1 2025 Held for 8 months	$111.8M
RA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Michael Saulnier CFO	0.78% $63.2M	46.37% 31.4M shares	Q3 2024 Held for 1y 2m	$8.1B
Affinity Asset Advisors, LLC Hedge Fund•Long/Short	Jonathan Bo-Shing Chu Founder	0.27% $2.6M	1.92% 1.3M shares	Q3 2024 Held for 1y 2m	$983.0M
S SPHERA FUNDS MANAGEMENT LTD. Institution	-	0.21% $874.0K	0.64% 434.8K shares	Q3 2024 Held for 1y 2m	$416.3M
DIADEMA PARTNERS LP Hedge Fund•Long/Short	Timothy Beau Bassett CIO	0.19% $274.3K	0.20% 136.5K shares	Q4 2024 Held for 11 months	$143.3M
K Kynam Capital Management, LP Hedge Fund•Long/Short	Jared Joseph Keller COO	0.15% $2.1M	1.52% 1.0M shares	Q4 2024 Held for 11 months	$1.3B
NAN FUNG TRINITY Ltd RIA/Wealth	Fredric Brian Fisher President	0.09% $931.9K	0.68% 463.7K shares	Q2 2025 Held for 5 months	$1.0B
T TANG CAPITAL MANAGEMENT LLC Institution	-	0.08% $2.0M	1.48% 1.0M shares	Q1 2025 Held for 8 months	$2.5B
S Shay Capital LLC Institution	-	0.05% $301.5K	0.22% 150.0K shares	Q1 2025 Held for 8 months	$548.9M
P Persistent Asset Partners Ltd Institution	-	0.04% $56.7K	0.04% 28.2K shares	Q4 2024 Held for 11 months	$137.1M