Transaction Details

Footnotes

Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. | Includes 36 shares of Common Stock purchased pursuant to the Rhythm Pharmaceuticals, Inc. Employee Stock Purchase Plan. | These shares were withheld for payment of the withholding taxes upon the vesting of the restricted stock units reported herein. | The restricted stock units vest as to 25% of the total shares on each of February 16, 2025, February 1, 2026, February 1, 2027 and February 1, 2028. The restricted stock units have no expiration date. | The restricted stock units vest as to 25% of the total shares on each of February 1, 2026, February 1, 2027, February 1, 2028 and February 1, 2029. The restricted stock units have no expiration date.