Cramer Pamela J. 4

What Happened

• Pamela J. Cramer, Chief Human Resources Officer of RHYTHM Pharmaceuticals (RYTM), had 13,293 restricted stock units (RSUs) convert into common shares on February 1, 2026. Of those, 4,731 shares were withheld to cover tax withholding at $108.99 per share, generating $515,632 in tax withholdings. The remaining 8,562 shares were issued to her account. The filing shows the RSU conversions as derivative transactions (code M) and the withholding as a tax payment (code F).

Key Details

• Transaction date: February 1, 2026; Form 4 filed February 3, 2026 (filed within the two-business-day SEC window).
• Total RSUs vesting/converted: 13,293 shares.
• Shares withheld for taxes: 4,731 shares at $108.99/share = $515,632.
• Net shares received by insider: 8,562 shares (13,293 vested − 4,731 withheld).
• Footnotes: Each RSU equals one share (F1). Shares were withheld to pay withholding taxes upon vesting (F2). Multiple RSU grants with different vesting schedules are referenced (F3–F6); several grants vested 25% on various prior/future February dates. The RSUs have no expiration date.
• Shares owned after the transaction: not specified in the provided filing excerpt.

Context

• This was an RSU vesting event (conversion of restricted stock units into shares), not an open-market purchase or discretionary sale. The withholding of shares to satisfy tax liabilities is a routine administrative disposition and does not necessarily signal a change in insider sentiment. The filing appears timely.