10 insiders reported 43 Form 4 transactions for Climb Bio, Inc. (CLYM) over the past 18 months (most recent 2026-06-30). Recent activity: Brennan Aoife (President and CEO) Buy 68,750 shares, Brennan Aoife (President and CEO) Sell 30,902 shares, Thomas Stephen Basil (Director) Sell 33,687 shares, Thomas Stephen Basil (Director) Sell 16,313 shares, Thomas Stephen Basil (Director) Sell 90,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-30 | Brennan Aoife | President and CEO | Buy | 68,750 | $0 |
| 2026-06-30 | Brennan Aoife | President and CEO | Sell | 30,902 | $406,979 |
| 2026-02-27 | Thomas Stephen Basil | Director | Sell | 33,687 | $235,809 |
| 2026-02-27 | Thomas Stephen Basil | Director | Sell | 16,313 | $114,354 |
| 2026-02-17 | Thomas Stephen Basil | Director | Sell | 90,000 | $470,700 |
| 2026-02-17 | Thomas Stephen Basil | Director | Sell | 10,000 | $58,100 |
| 2026-01-07 | RA Capital Nexus Fund III, L.P. | Director | Buy | 7,111 | $24,888 |
| 2026-01-07 | RA CAPITAL MANAGEMENT, L.P. | Director | Buy | 7,111 | $24,888 |
| 2026-01-07 | Kolchinsky Peter | Director | Buy | 7,111 | $24,888 |
| 2026-01-07 | Shah Rajeev M. | Director | Buy | 7,111 | $24,888 |
| 2026-01-07 | RA Capital Nexus Fund, L.P. | Director | Buy | 7,111 | $24,888 |
| 2026-01-07 | RA Capital Healthcare Fund LP | Director | Buy | 7,111 | $24,888 |
| 2026-01-07 | RA Capital Nexus Fund II, L.P. | Director | Buy | 7,111 | $24,888 |
| 2025-12-15 | RA Capital Nexus Fund, L.P. | Director | Buy | 213,099 | $464,556 |
| 2025-12-15 | RA CAPITAL MANAGEMENT, L.P. | Director | Sell | 20.4M | $0 |
| 2025-12-15 | Kolchinsky Peter | Director | Sell | 20.4M | $0 |
| 2025-12-15 | RA Capital Healthcare Fund LP | Director | Sell | 20.4M | $0 |
| 2025-12-15 | Shah Rajeev M. | Director | Sell | 20.4M | $0 |
| 2025-12-15 | RA Capital Nexus Fund, L.P. | Director | Sell | 20.4M | $0 |
| 2025-12-15 | RA Capital Nexus Fund II, L.P. | Director | Sell | 20.4M | $0 |
| 2025-12-15 | RA Capital Nexus Fund III, L.P. | Director | Sell | 20.4M | $0 |
| 2025-12-15 | RA Capital Healthcare Fund LP | Director | Buy | 213,099 | $464,556 |
| 2025-12-15 | RA CAPITAL MANAGEMENT, L.P. | Director | Buy | 213,099 | $464,556 |
| 2025-12-15 | Kolchinsky Peter | Director | Buy | 213,099 | $464,556 |
| 2025-12-15 | Shah Rajeev M. | Director | Buy | 213,099 | $464,556 |
Source: SEC Form 4 filings · as of 2026-06-30