CLYM

Climb Bio, Inc.

Insider trading activity for Climb Bio, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$1.4M

net selling

Bought(0 · 0 insiders): $0
Sold(1 · 1 insiders): $1.4M

Past 6 months

-$1.8M

net selling

Bought(0 · 0 insiders): $0
Sold(2 · 2 insiders): $1.8M

Past 12 months

-$1.9M

net selling

Bought(3 · 1 insiders): $779.6K
Sold(6 · 2 insiders): $2.7M

Transaction history

The 53 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER◆	40,000	—	—	—	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER	40,000	$1.29	$51.6K	+133.3%	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER	10,000	$7.89	$78.9K	+50.0%	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER	10,000	$3.00	$30K	+100.0%	Open the original filing on SEC.gov
Sep 28	Ra Capital Management,…	Director, 10% Owner	MEXER	10,000	$3.46	$34.6K	—	Open the original filing on SEC.gov
Sep 15	Thomas Stephen Basil	Director	SSELL◷	100,000	$13.67	$1.4M	-17.6%	Open the original filing on SEC.gov
Jun 29	Brennan Aoife	President and CEO	SSELL◷	30,902	$13.17	$407K	-26.1%	Open the original filing on SEC.gov
Jun 29	Ra Capital Management,…	Director, 10% Owner	AGRANT◆	70,284	—	—	—	Open the original filing on SEC.gov
Jun 29	Celebi Breanna Maurine	Director	AGRANT◆	70,284	—	—	—	Open the original filing on SEC.gov
Jun 27	Brennan Aoife	President and CEO	MEXER◷◆	68,750	—	—	—	Open the original filing on SEC.gov
Jun 27	Brennan Aoife	President and CEO	MEXER◷	68,750	—	—	+137.8%	Open the original filing on SEC.gov
Jun 5	Ra Capital Management,…	Director, 10% Owner	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 5	Levin Andrew David	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 5	Drapkin Kimberlee C	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 5	Williams Douglas E	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 5	Cumbo Alexander	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 5	Thomas Stephen Basil	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 5	Dunn Judith	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Apr 29	Ra Capital Management,…	Director, 10% Owner	AGRANT◆	2.1M	$9.50	$20M	—	Open the original filing on SEC.gov
Feb 26	Thomas Stephen Basil	Director	SSELL◷	16,313	$7.01	$114.3K	-9.5%	Open the original filing on SEC.gov
Feb 25	Thomas Stephen Basil	Director	SSELL◷	33,687	$7.00	$236K	-16.5%	Open the original filing on SEC.gov
Feb 13	Thomas Stephen Basil	Director	SSELL◷	10,000	$5.81	$58.1K	-4.7%	Open the original filing on SEC.gov
Feb 12	Thomas Stephen Basil	Director	SSELL◷	90,000	$5.23	$471K	-29.5%	Open the original filing on SEC.gov
Jan 6	Wilson Perrin Megan	Chief Business Officer	AGRANT◆	300,000	—	—	—	Open the original filing on SEC.gov
Jan 6	Driscoll Cindy	Senior Vice President,…	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Jan 6	Brennan Aoife	President and CEO	AGRANT◆	700,000	—	—	—	Open the original filing on SEC.gov
Jan 6	ALTSCHULLER Susan	Chief Financial Officer	AGRANT◆	142,500	—	—	—	Open the original filing on SEC.gov
Jan 5	Ra Capital Management,…	Director, 10% Owner	PBUY	7,111	$3.50	$24.9K	+0.2%	Open the original filing on SEC.gov
Dec 12, 2025	Ra Capital Management,…	Director, 10% Owner	PBUY	101,462	$2.86	$290.2K	+3.1%	Open the original filing on SEC.gov
Dec 11, 2025	Ra Capital Management,…	Director, 10% Owner	AGRANT◆	20.4M	—	—	—	Open the original filing on SEC.gov
Dec 11, 2025	Ra Capital Management,…	Director, 10% Owner	PBUY★	213,099	$2.18	$464.6K	+6.9%	Open the original filing on SEC.gov
Dec 11, 2025	Ra Capital Management,…	Director, 10% Owner	DTOISS	20.4M	—	—	-86.9%	Open the original filing on SEC.gov
Oct 1, 2025	ALTSCHULLER Susan	Chief Financial Officer	AGRANT◆	600,000	—	—	—	Open the original filing on SEC.gov
Aug 7, 2025	Thomas Stephen Basil	Director	AGRANT	100,375	—	—	+49.1%	Open the original filing on SEC.gov
Jun 30, 2025	Brennan Aoife	President and CEO	SSELL◷	20,618	$1.22	$25.2K	-30.0%	Open the original filing on SEC.gov
Jun 27, 2025	Thomas Stephen Basil	Director	MEXER◆	25,094	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Thomas Stephen Basil	Director	MEXER	25,094	—	—	+14.0%	Open the original filing on SEC.gov
Jun 27, 2025	Brennan Aoife	President and CEO	MEXER◷◆	68,750	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Brennan Aoife	President and CEO	MEXER◷	68,750	—	—	—	Open the original filing on SEC.gov
Jun 20, 2025	Pimblett Emily	SVP, Finance & CAO	SSELL◷	1,242	$1.24	$1.5K	-6.2%	Open the original filing on SEC.gov
Jun 18, 2025	Pimblett Emily	SVP, Finance & CAO	MEXER◷◆	5,000	—	—	—	Open the original filing on SEC.gov
Jun 18, 2025	Pimblett Emily	SVP, Finance & CAO	MEXER◷	5,000	—	—	+33.1%	Open the original filing on SEC.gov
Jun 17, 2025	Driscoll Cindy	Senior Vice President,…	AGRANT◆	200,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Ra Capital Management,…	Director, 10% Owner	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Drapkin Kimberlee C	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Cumbo Alexander	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Dunn Judith	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Williams Douglas E	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Levin Andrew David	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov
Jun 4, 2025	Thomas Stephen Basil	Director	AGRANT◆	40,000	—	—	—	Open the original filing on SEC.gov

MEXER◆—

Ra Capital Management,… · Director, 10%…Sep 28

40,000 sh

MEXER◆—

Ra Capital Management,… · Director, 10%…Sep 28

10,000 sh

MEXER◆—

Ra Capital Management,… · Director, 10%…Sep 28

10,000 sh

MEXER◆—

Ra Capital Management,… · Director, 10%…Sep 28

10,000 sh

MEXER$51.6K

Ra Capital Management,… · Director, 10%…Sep 28

40,000 sh @ $1.29 · +133.3% own

MEXER$78.9K

Ra Capital Management,… · Director, 10%…Sep 28

10,000 sh @ $7.89 · +50.0% own

MEXER$30K

Ra Capital Management,… · Director, 10%…Sep 28

10,000 sh @ $3.00 · +100.0% own

MEXER$34.6K

Ra Capital Management,… · Director, 10%…Sep 28

10,000 sh @ $3.46

SSELL◷$1.4M

Thomas Stephen Basil · DirectorSep 15

100,000 sh @ $13.67 · -17.6% own

SSELL◷$407K

Brennan Aoife · President and CEOJun 29

30,902 sh @ $13.17 · -26.1% own

AGRANT◆—

Ra Capital Management,… · Director, 10%…Jun 29

70,284 sh

AGRANT◆—

Celebi Breanna Maurine · DirectorJun 29

70,284 sh

MEXER◷◆—

Brennan Aoife · President and CEOJun 27

68,750 sh

MEXER◷—

Brennan Aoife · President and CEOJun 27

68,750 sh · +137.8% own

AGRANT◆—

Ra Capital Management,… · Director, 10%…Jun 5

40,000 sh

AGRANT◆—

Levin Andrew David · DirectorJun 5

40,000 sh

AGRANT◆—

Drapkin Kimberlee C · DirectorJun 5

40,000 sh

AGRANT◆—

Williams Douglas E · DirectorJun 5

40,000 sh

AGRANT◆—

Cumbo Alexander · DirectorJun 5

40,000 sh

AGRANT◆—

Thomas Stephen Basil · DirectorJun 5

40,000 sh

AGRANT◆—

Dunn Judith · DirectorJun 5

40,000 sh

AGRANT◆$20M

Ra Capital Management,… · Director, 10%…Apr 29

2.1M sh @ $9.50

SSELL◷$114.3K

Thomas Stephen Basil · DirectorFeb 26

16,313 sh @ $7.01 · -9.5% own

SSELL◷$236K

Thomas Stephen Basil · DirectorFeb 25

33,687 sh @ $7.00 · -16.5% own

SSELL◷$58.1K

Thomas Stephen Basil · DirectorFeb 13

10,000 sh @ $5.81 · -4.7% own

SSELL◷$471K

Thomas Stephen Basil · DirectorFeb 12

90,000 sh @ $5.23 · -29.5% own

AGRANT◆—

Wilson Perrin Megan · Chief Business…Jan 6

300,000 sh

AGRANT◆—

Driscoll Cindy · Senior Vice…Jan 6

100,000 sh

AGRANT◆—

Brennan Aoife · President and CEOJan 6

700,000 sh

AGRANT◆—

ALTSCHULLER Susan · Chief Financial…Jan 6

142,500 sh

PBUY$24.9K

Ra Capital Management,… · Director, 10%…Jan 5

7,111 sh @ $3.50 · +0.2% own

PBUY$290.2K

Ra Capital Management,… · Director, 10%…Dec 12, 2025

101,462 sh @ $2.86 · +3.1% own

AGRANT◆—

Ra Capital Management,… · Director, 10%…Dec 11, 2025

20.4M sh

PBUY★$464.6K

Ra Capital Management,… · Director, 10%…Dec 11, 2025

213,099 sh @ $2.18 · +6.9% own

DTOISS—

Ra Capital Management,… · Director, 10%…Dec 11, 2025

20.4M sh · -86.9% own

AGRANT◆—

ALTSCHULLER Susan · Chief Financial…Oct 1, 2025

600,000 sh

AGRANT—

Thomas Stephen Basil · DirectorAug 7, 2025

100,375 sh · +49.1% own

SSELL◷$25.2K

Brennan Aoife · President and CEOJun 30, 2025

20,618 sh @ $1.22 · -30.0% own

MEXER◆—

Thomas Stephen Basil · DirectorJun 27, 2025

25,094 sh

MEXER—

Thomas Stephen Basil · DirectorJun 27, 2025

25,094 sh · +14.0% own

MEXER◷◆—

Brennan Aoife · President and CEOJun 27, 2025

68,750 sh

MEXER◷—

Brennan Aoife · President and CEOJun 27, 2025

68,750 sh

SSELL◷$1.5K

Pimblett Emily · SVP, Finance & CAOJun 20, 2025

1,242 sh @ $1.24 · -6.2% own

MEXER◷◆—

Pimblett Emily · SVP, Finance & CAOJun 18, 2025

5,000 sh

MEXER◷—

Pimblett Emily · SVP, Finance & CAOJun 18, 2025

5,000 sh · +33.1% own

AGRANT◆—

Driscoll Cindy · Senior Vice…Jun 17, 2025

200,000 sh

AGRANT◆—

Ra Capital Management,… · Director, 10%…Jun 4, 2025

40,000 sh

AGRANT◆—

Drapkin Kimberlee C · DirectorJun 4, 2025

40,000 sh

AGRANT◆—

Cumbo Alexander · DirectorJun 4, 2025

40,000 sh

AGRANT◆—

Dunn Judith · DirectorJun 4, 2025

40,000 sh

AGRANT◆—

Williams Douglas E · DirectorJun 4, 2025

40,000 sh

AGRANT◆—

Levin Andrew David · DirectorJun 4, 2025

40,000 sh

AGRANT◆—

Thomas Stephen Basil · DirectorJun 4, 2025

40,000 sh

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 32 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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