SEC Form 4 · accession 0001193125-26-309048
Korsana Biosciences, Inc. · KRSA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Peter M Hecht
Director · 10% Owner
Period of report
Jul 16, 2026
Accepted (ET)
Jul 20, 2026 · 5:04 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001755237
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Jul 16, 2026 | C | 351,037 | — | A | 910,240 | D | |
| Common StockF2 | holding | — | — | — | 24 | I | The 2000 Trust for Alexis Mae Hecht | |
| Common StockF2 | holding | — | — | — | 24 | I | The 2000 Trust for Malcolm Paul Hecht | |
| Common StockF2 | holding | — | — | — | 24 | I | The 2000 Trust for Zoe Niovi Hecht |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Series A Convertible Preferred StockF1,F3 | — | Jul 16, 2026 | C | 351,037 | D | — | — | Common Stock | 351,037 | 0 | D |
Explanation of responses
- F1On May 19, 2023, the reporting person purchased directly from the Issuer 351,037 shares of Series A Convertible Preferred Stock (the "Series A Preferred Stock") at a price of $8.68 per share in a private placement transaction pursuant to the Stock Purchase Agreement dated as of March 31, 2023 between the reporting person and the Issuer. The Series A Preferred Stock is convertible to Common Stock on a one-for-one basis at the option of the holder thereof. On July 16, 2026, the reporting person converted all 351,037 shares of Series A Convertible Preferred Stock into 351,037 shares of Common Stock.
- F2These shares are held in the referenced trust for the benefit of the reporting person's child. The reporting person's spouse is the trustee of this trust. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or any other purpose.
- F3All options to purchase Common Stock previously held by the reporting person were cancelled on July 16, 2026. As a result, the reporting person no longer holds options to purchase Common Stock.