Form 4 for RYTM RHYTHM PHARMACEUTICALS, INC.
Accepted 2026-06-25 18:03:05 ET · period of report 2026-06-23 · accession 0001104659-26-077863 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-25 18:03 | 2026-06-23 | RYTM | Arbuckle Stuart A | Dir | M - OptEx | — | +4,712 | 11.7K | +67% | — |
| D | 2026-06-25 18:03 | 2026-06-23 | RYTM | Arbuckle Stuart A | Dir | M - OptEx | $0.00 | -4,712 | 0 | -100% | $0 |
| DM | 2026-06-25 18:03 | 2026-06-24 | RYTM | Arbuckle Stuart A | Dir | A - Grant | $0.00 | +6,015 | 2,324 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-23 | M | A | 4,712 | — | 11,712 | D | — | — | (F1) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. |
| 2 | Derivative | Restricted Stock Units | 2026-06-23 | M | D | 4,712 | $0.00 | 0 | D | — · — to — | 4,712 Common Stock | (F1) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. (F2) The restricted stock units are fully vested. The restricted stock units have no expiration date. (F2) The restricted stock units are fully vested. The restricted stock units have no expiration date. |
| 3 | Derivative | Stock Option (right to buy) | 2026-06-24 | A | A | 3,691 | $0.00 | 3,691 | D | $107.55 · — to 2036-06-23 | 3,691 Common Stock | (F3) The options fully vest upon the earlier of (i) June 24, 2027 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2027, subject to the Reporting Person's continued service on such vesting date. |
| 4 | Derivative | Restricted Stock Units | 2026-06-24 | A | A | 2,324 | $0.00 | 2,324 | D | — · — to — | 2,324 Common Stock | (F1) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. (F4) The restricted stock units fully vest upon the earlier of (i) June 24, 2027 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2027, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date. (F4) The restricted stock units fully vest upon the earlier of (i) June 24, 2027 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2027, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date. |