SEC Form 4 · accession 0001649904-26-000009
RHYTHM PHARMACEUTICALS, INC. · RYTM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Jennifer Kayden Lee
Officer — EVP, Head of North America
Period of report
Aug 13, 2026
Accepted (ET)
Aug 14, 2026 · 7:04 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001649904
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 13, 2026 | M | 35,000 | $24.29 | A | 54,233 | D | |
| Common Stock | Aug 13, 2026 | M | 21,601 | $6.80 | A | 75,834 | D | |
| Common Stock | Aug 13, 2026 | S | 75,834 | $117.3818 | D | 0 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Options (Right to Buy)F2 | $24.29 | Aug 13, 2026 | M | 35,000 | D | — | Nov 9, 2030 | Common Stock | 35,000 | 36,283 | D |
| Stock Options (Right to Buy)F3 | $6.80 | Aug 13, 2026 | M | 21,601 | D | — | Feb 8, 2032 | Common Stock | 21,601 | 0 | D |
Explanation of responses
- F1The exercises and sales reported in the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 14, 2026.
- F2The stock options were granted on November 9, 2020. 25% of the shares subject to the option vested and become exercisable on November 9, 2021 and the remaining 75% of the shares subject to the option vested and become exercisable in 12 substantially equal installments upon the Reporting Person's completion of each three full months of successive service to the Issuer thereafter.
- F3The stock options were granted on February 9, 2022. The options vested and became exercisable in 16 substantially equal installments upon the Reporting Person's completion of each three full months of successive service to the Issuer following the grant date.