InsiderTrades

Form 4 for RYTM RHYTHM PHARMACEUTICALS, INC.

Accepted 2026-07-02 16:52:49 ET · period of report 2026-07-01 · accession 0001104659-26-080397 · 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 2026-07-02 16:52 2026-07-01 RYTM Garfield Alastair CSO M - OptEx — +4,445 12.2K +57% —
D 2026-07-02 16:52 2026-07-01 RYTM Garfield Alastair CSO F - Tax $110.41 -2,150 10.1K -18% -$237.4K
D 2026-07-02 16:52 2026-07-01 RYTM Garfield Alastair CSO M - OptEx $0.00 -4,445 8,888 -33% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-07-01 M A 4,445 — 12,208 D — — (F1) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
2 Common Common Stock 2026-07-01 F D 2,150 $110.41 10,058 D — — (F2) These shares were withheld for payment of the withholding taxes upon the vesting of the restricted stock units reported herein.
3 Derivative Restricted Stock Units 2026-07-01 M D 4,445 $0.00 8,888 D — · — to — 4,445 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. (F3) The restricted stock units vest as to 25% of the total restricted stock units on each of the first four anniversaries of July 1, 2024, subject to the Reporting Person's continued service on each such vesting date. The restricted stock units have no expiration date. (F3) The restricted stock units vest as to 25% of the total restricted stock units on each of the first four anniversaries of July 1, 2024, subject to the Reporting Person's continued service on each such vesting date. The restricted stock units have no expiration date.