SEC Form 4 · accession 0001808365-26-000004
Keros Therapeutics, Inc. · KROS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Julius Knowles
Director
Period of report
Jun 4, 2026
Accepted (ET)
Jun 8, 2026 · 4:36 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001664710
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2 | Jun 4, 2026 | S | 2,625 | $10.73 | D | 10,958 | D | |
| Common StockF3 | holding | — | — | — | 150,047 | I | See footnote | |
| Common StockF4 | holding | — | — | — | 102,233 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 5, 2025.
- F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.61 to $10.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F3The securities are held by Partners Innovation Fund, LLC ("PIF I"). Partners Innovation Fund, LLC ("Partners GP I") is the ultimate general partner of PIF I. The Reporting Person, a member of the board of directors of the Issuer, is a partner of Partners GP I and as a result, may be deemed to share voting and investment power with respect to the shares held by PIF I.
- F4The securities are held by Partners Innovation Fund II, L.P. ("PIF II"). Partners Innovation Fund II, LLC ("Partners GP II") is the ultimate general partner of PIF II. The Reporting Person, a member of the board of directors of the Issuer, is a partner of Partners GP II and as a result, may be deemed to share voting and investment power with respect to the shares held by PIF II.