Korsana Biosciences, Inc.
KRSA
4 insider filings · Latest: Sep 9, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 | Sep 23 8:50 PM | ERROL B DE SOUZA | Proposed Sale | 4,903 | $34.99 | $171.6K | — | View → |
| Sep 22, 2026 | Sep 22 8:56 PM | ERROL B DE SOUZA | Proposed Sale | 100 | $34.99 | $3.5K | — | View → |
| Sep 18, 2026 | Sep 18 8:49 PM | ERROL B DE SOUZA | Proposed Sale | 2,139 | $34.99 | $74.8K | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Sep 9, 2026 | Sep 10 9:45 PM | Michelle Patricia PerniceDirector | Grant/Award | 48,445 | $26.20 | 48,445(D) | View → |
| Sep 9, 2026 | Sep 10 9:45 PM | Nimish P ShahDirector | Grant/Award | 48,445 | $26.20 | 48,445(D) | View → |
| Sep 9, 2026 | Sep 10 9:44 PM | Fairmount Funds Management LLCDirector, 10% Owner | Grant/Award | 48,445 | $26.20 | 48,445(I) | View → |
| Sep 9, 2026 | Sep 10 9:43 PM | Andrew GottesdienerDirector | Grant/Award | 48,445 | $26.20 | 48,445(D) | View → |
| Aug 14, 2026 | Aug 18 9:27 PM | Rhonda M. ChickoChief Financial Officer | Option Exercise | 25,000 | $2.36 | 0(D) | View → |
| Aug 14, 2026 | Aug 18 9:21 PM | Regina Margaret GraulDirector, President and Chief Executive Officer | Option Exercise | 55,849 | $3.30 | 0(D) | View → |
| Jul 16, 2026 | Jul 20 9:04 PM | Hecht Peter MDirector, 10% Owner | Conversion | 351,037 | — | 0(D) | View → |