CLYM

Climb Bio, Inc.$9.98-0.27 (-2.59%)

Prev Close$10.25·MCap$581.3M·P/E—·Vol650.5K·Yield—

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Buys (12M)

$24.9K

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Sells (12M)

$3.18M

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Net Activity

Net Seller

$3.16M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Climb Bio, Inc. (CLYM) has been dominated by selling, with 1 insider purchase totaling $24.9K and 5 insider sales totaling $3.18M. The most recent insider transaction was by Thomas Stephen Basil (director), who sold $1.37M worth of shares on Sep 17, 2026. Climb Bio, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $581.3M.

CLYM Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 17, 2026	Thomas Stephen Basil	director	Sell	100,000	$13.67	$1.37M	467,969
Jun 30, 2026	Brennan Aoife	director, officer: President and CEO	Sell	30,902	$13.17	$407.0K	87,731-26%
Feb 27, 2026	Thomas Stephen Basil	director	Sell	50,000	$7.01	$350.3K	170,970
Feb 17, 2026	Thomas Stephen Basil	director	Sell	100,000	$5.29	$529.1K	214,657-32%
Feb 12, 2026	Thomas Stephen Basil	Director	Sell	100,000	$5.29	$529.1K	0
Jan 7, 2026	RA CAPITAL MANAGEMENT, L.P.	director, 10 percent owner:	Buy	7,111	$3.50	$24.9K	3,403,429
Mar 18, 2025	Pimblett Emily	SVP, Finance & CAO	Sell	1,199	$1.31	$1.6K	0
Dec 18, 2024	Pimblett Emily	CHIEF ACCOUNTING OFFICER	Sell	1,235	$2.02	$2.5K	0
Sep 18, 2024	Pimblett Emily	CHIEF ACCOUNTING OFFICER	Sell	1,191	$8.18	$9.7K	0
Jul 19, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	129,206	$7.65	$988.5K	0
Jul 17, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	41,783	$6.93	$289.5K	0
Jul 16, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	50,000	$7.13	$356.5K	0
Jul 12, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	92,377	$7.04	$650.6K	0
Jul 9, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	105,931	$6.95	$736.5K	0
Jul 5, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	12,342	$7.06	$87.1K	0
Jul 1, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	50,000	$6.76	$338.0K	0
Jun 18, 2024	Pimblett Emily	CHIEF ACCOUNTING OFFICER	Sell	1,245	$7.21	$9.0K	0

CLYM Insider Buying Activity

The following table shows recent insider purchases of Climb Bio, Inc. (CLYM) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Jan 7, 2026	RA CAPITAL MANAGEMENT, L.P.	director, 10 percent owner:	Buy	7,111	$3.50	$24.9K	3,403,429

CLYM Insider Selling Activity

The following table shows recent insider sales of Climb Bio, Inc. (CLYM) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 17, 2026	Thomas Stephen Basil	director	Sell	100,000	$13.67	$1.37M	467,969
Jun 30, 2026	Brennan Aoife	director, officer: President and CEO	Sell	30,902	$13.17	$407.0K	87,731-26%
Feb 27, 2026	Thomas Stephen Basil	director	Sell	50,000	$7.01	$350.3K	170,970
Feb 17, 2026	Thomas Stephen Basil	director	Sell	100,000	$5.29	$529.1K	214,657-32%
Feb 12, 2026	Thomas Stephen Basil	Director	Sell	100,000	$5.29	$529.1K	0
Mar 18, 2025	Pimblett Emily	SVP, Finance & CAO	Sell	1,199	$1.31	$1.6K	0
Dec 18, 2024	Pimblett Emily	CHIEF ACCOUNTING OFFICER	Sell	1,235	$2.02	$2.5K	0
Sep 18, 2024	Pimblett Emily	CHIEF ACCOUNTING OFFICER	Sell	1,191	$8.18	$9.7K	0
Jul 19, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	129,206	$7.65	$988.5K	0
Jul 17, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	41,783	$6.93	$289.5K	0
Jul 16, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	50,000	$7.13	$356.5K	0
Jul 12, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	92,377	$7.04	$650.6K	0
Jul 9, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	105,931	$6.95	$736.5K	0
Jul 5, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	12,342	$7.06	$87.1K	0
Jul 1, 2024	Morisset Valerie	EVP, R&D AND CSO	Sell	50,000	$6.76	$338.0K	0
Jun 18, 2024	Pimblett Emily	CHIEF ACCOUNTING OFFICER	Sell	1,245	$7.21	$9.0K	0