GOOD JENNIFER L 4

What Happened Jennifer L. Good, a director of RHYTHM PHARMACEUTICALS, reported exercising/converting derivative securities for 4,712 shares on 2026-06-23 (transaction code M) and, on 2026-06-24, received grants of restricted stock units (RSUs) totaling 6,015 RSUs (3,691 + 2,324; transaction code A). The filing shows $0.00 price and $0 proceeds for the disposal/derivative items reported.

Key Details

• Transaction dates: 2026-06-23 (exercise/conversion of 4,712 shares); 2026-06-24 (grants of 3,691 and 2,324 RSUs).
• Prices/proceeds reported: exercise/conversion and disposal lines show $0.00 and $0 proceeds in the filing.
• Shares owned after transaction: not specified in the provided filing extract.
• Footnotes of note:
  • F1: Each RSU represents a contingent right to one share.
  • F2: The RSUs are fully vested and have no expiration date.
  • F3: The options referenced vest fully upon the earlier of June 24, 2027 or the day before the 2027 annual meeting, subject to continued service.
  • F4: The RSUs fully vest upon the earlier of June 24, 2027 or the day before the 2027 annual meeting; no expiration date.
• Filing timeliness: Reported on 2026-06-25 for transactions on 6/23–6/24 (appears timely under Form 4 reporting rules).

Context

• Transaction codes: M = exercise/conversion of derivative (options); A = award/grant (RSUs). The filing shows a disposal line for the 4,712 shares at $0.00; the form does not explain whether that reflects a net settlement, tax withholding, transfer, or other non‑cash disposition. The RSUs reported are described as fully vested per the filing.