Climb Bio, Inc. (CLYM) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of CLYM are Capital Management, L.P. Ra (Director, 3.40Mn shares), Stephen Basil Thomas (Director, 154.66K shares), Aoife Brennan (President And Ceo, 48.13K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Capital Management, L.P. Ra 0 3,403,429 07 Jan, 2026
Stephen Basil Thomas 154,657 0 27 Feb, 2026
Aoife Brennan President And Ceo 48,132 0 01 Jul, 2025
Valerie Morisset Evp, Rd And Cso 31,317 0 23 Jul, 2024
Emily Pimblett Svp, Finance Cao 18,888 0 20 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
25 Feb, 2026 Stephen Basil Thomas Common Stock D 33,687 $7.00 170,970 D S
26 Feb, 2026 Stephen Basil Thomas Common Stock D 16,313 $7.01 154,657 D S
12 Feb, 2026 Stephen Basil Thomas Common Stock D 90,000 $5.23 214,657 D S
13 Feb, 2026 Stephen Basil Thomas Common Stock D 10,000 $5.81 204,657 D S
06 Jan, 2026 Perrin Megan Wilson Stock Option (Right to Buy) A 300,000 $0.00 300,000 D A
06 Jan, 2026 Aoife Brennan Stock Option (Right to Buy) A 700,000 $0.00 700,000 D A
06 Jan, 2026 Cindy Driscoll Stock Option (Right to Buy) A 100,000 $0.00 100,000 D A
06 Jan, 2026 Susan Altschuller Stock Option (Right to Buy) A 142,500 $0.00 142,500 D A
05 Jan, 2026 Capital Management, L.P. Ra Common Stock A 7,111 $3.50 3,403,429 I P
11 Dec, 2025 Capital Management, L.P. Ra Common Stock D 20,440,000 $0.00 3,081,757 I D
11 Dec, 2025 Capital Management, L.P. Ra Common Stock A 213,099 $2.18 3,294,856 I P
12 Dec, 2025 Capital Management, L.P. Ra Common Stock A 101,462 $2.86 3,396,318 I P
11 Dec, 2025 Capital Management, L.P. Ra Pre-Funded Warrants (Right to Buy) A 20,440,000 - 20,440,000 I A
01 Oct, 2025 Susan Altschuller Stock Option (Right to Buy) A 600,000 $0.00 600,000 D A
07 Aug, 2025 Stephen Basil Thomas Common Stock A 100,375 $0.00 304,657 D A
27 Jun, 2025 Stephen Basil Thomas Common Stock A 25,094 - 204,282 D M
27 Jun, 2025 Aoife Brennan Common Stock A 68,750 - 68,750 D M
30 Jun, 2025 Aoife Brennan Common Stock D 20,618 $1.22 48,132 D S
27 Jun, 2025 Stephen Basil Thomas Restricted Stock Units D 25,094 $0.00 0 D M
27 Jun, 2025 Aoife Brennan Restricted Stock Units D 68,750 $0.00 206,250 D M