29 insiders reported 120 Form 4 transactions for Keros Therapeutics, Inc. (KROS) over the past 18 months (most recent 2026-07-06). Recent activity: Prener Anne (Director) Buy 13,786 shares, BIENAIME JEAN JACQUES (Director) Buy 1,000 shares, Farzan Nima (Director) Sell 2,625 shares, Knowles Julius (Director) Sell 2,625 shares, Seth Alpna (Director) Buy 7,142 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-06 | Prener Anne | Director | Buy | 13,786 | $0 |
| 2026-06-17 | BIENAIME JEAN JACQUES | Director | Buy | 1,000 | $10,190 |
| 2026-06-08 | Farzan Nima | Director | Sell | 2,625 | $28,166 |
| 2026-06-08 | Knowles Julius | Director | Sell | 2,625 | $28,166 |
| 2026-06-05 | Seth Alpna | Director | Buy | 7,142 | $0 |
| 2026-06-05 | BIENAIME JEAN JACQUES | Director | Buy | 7,142 | $0 |
| 2026-06-05 | GRAY MARY ANN | Director | Buy | 7,142 | $0 |
| 2026-06-05 | Seth Alpna | Director | Sell | 2,625 | $28,140 |
| 2026-06-05 | Farzan Nima | Director | Buy | 7,142 | $0 |
| 2026-06-05 | Knowles Julius | Director | Buy | 7,142 | $0 |
| 2026-05-19 | BIENAIME JEAN JACQUES | Director | Buy | 1,000 | $10,580 |
| 2026-04-17 | BIENAIME JEAN JACQUES | Director | Buy | 1,000 | $11,700 |
| 2026-04-06 | Seehra Jasbir | CHIEF EXECUTIVE OFFICER | Buy | 55,000 | $16,500 |
| 2026-03-11 | BIENAIME JEAN JACQUES | Director | Buy | 2,000 | $22,420 |
| 2026-03-11 | Newton Charles W. | Director | Buy | 13,215 | $0 |
| 2026-02-20 | Lerner Lorena Raquel | Chief Science Officer | Sell | 3,873 | $63,324 |
| 2026-02-20 | Cho Esther | SVP, General Counsel | Sell | 4,745 | $77,581 |
| 2026-02-20 | Seehra Jasbir | CHIEF EXECUTIVE OFFICER | Sell | 7,015 | $113,433 |
| 2026-02-20 | Regnante Keith | CHIEF FINANCIAL OFFICER | Sell | 4,739 | $77,483 |
| 2025-12-18 | GORDON CARL L | Director | Sell | 140,057 | $2.5M |
| 2025-12-18 | GORDON CARL L | Director | Sell | 74,465 | $1.3M |
| 2025-12-18 | ORBIMED ADVISORS LLC | Director | Sell | 140,057 | $2.5M |
| 2025-12-18 | OrbiMed Capital GP VII LLC | Director | Sell | 140,057 | $2.5M |
| 2025-12-18 | OrbiMed Genesis GP LLC | Director | Sell | 140,057 | $2.5M |
| 2025-12-18 | ORBIMED ADVISORS LLC | Director | Sell | 74,465 | $1.3M |
Source: SEC Form 4 filings · as of 2026-07-06