28 insiders reported 122 Form 4 transactions for Keros Therapeutics, Inc. (KROS) over the past 18 months (most recent 2026-08-20). Recent activity: Newton Charles W. (Director) Sell 551 shares, Lerner Lorena Raquel (Chief Scientific Officer) Sell 3,568 shares, Cho Esther (Chief Legal Officer) Sell 4,485 shares, Tanini Annita (Corp. Controller & VP, Finance) Sell 1,224 shares, BIENAIME JEAN JACQUES (Director) Buy 1,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Newton Charles W. | Director | Sell | 551 | $5,675 |
| 2026-08-20 | Lerner Lorena Raquel | Chief Scientific Officer | Sell | 3,568 | $36,715 |
| 2026-08-20 | Cho Esther | Chief Legal Officer | Sell | 4,485 | $46,151 |
| 2026-08-20 | Tanini Annita | Corp. Controller & VP, Finance | Sell | 1,224 | $12,595 |
| 2026-08-19 | BIENAIME JEAN JACQUES | Director | Buy | 1,000 | $10,270 |
| 2026-07-17 | BIENAIME JEAN JACQUES | Director | Buy | 1,000 | $10,610 |
| 2026-07-06 | Prener Anne | Director | Buy | 13,786 | $0 |
| 2026-06-17 | BIENAIME JEAN JACQUES | Director | Buy | 1,000 | $10,190 |
| 2026-06-15 | Newton Charles W. | Director | Sell | 550 | $5,522 |
| 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 | BIENAIME JEAN JACQUES | Director | Buy | 7,142 | $0 |
| 2026-06-05 | Seth Alpna | Director | Sell | 2,625 | $28,140 |
| 2026-06-05 | Seth Alpna | Director | Buy | 7,142 | $0 |
| 2026-06-05 | Farzan Nima | Director | Buy | 7,142 | $0 |
| 2026-06-05 | Knowles Julius | Director | Buy | 7,142 | $0 |
| 2026-06-05 | GRAY MARY ANN | 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 | Seehra Jasbir | CHIEF EXECUTIVE OFFICER | Sell | 7,015 | $113,433 |
| 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 |
Source: SEC Form 4 filings · as of 2026-08-20