Based on data from the past 90 days ending January 10, 2026, Rhythm Pharmaceuticals's three largest insider shareholders are President And Ceo David P Meeker (201.82K shares), Chief Financial Officer Hunter C Smith (116.92K shares), Evp And Head Of International Yann Mazabraud (37.66K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| David P Meeker | President And Ceo | 201,825 | 05 Jun, 2025 |
| Hunter C Smith | Chief Financial Officer | 116,915 | 14 Aug, 2025 |
| Yann Mazabraud | Evp And Head Of International | 37,655 | 01 May, 2025 |
| Pamela J. Cramer | Chief Human Resources Officer | 20,814 | 15 Dec, 2025 |
| Edward T Mathers | 12,771 | 23 Jun, 2025 | |
| Joseph Shulman | Chief Technical Officer | 8,509 | 03 Nov, 2025 |
| William T. Roberts | Chief Accounting Officer | 7,872 | 31 Mar, 2023 |
| David W J Mcgirr | 7,000 | 23 Jun, 2025 | |
| Jennifer L Good | 7,000 | 23 Jun, 2025 | |
| Camille L Bedrosian | 7,000 | 23 Jun, 2025 | |
| Christophe Jean | 7,000 | 23 Jun, 2025 | |
| Stuart A Arbuckle | 7,000 | 23 Jun, 2025 | |
| Lynn A. Tetrault | 7,000 | 23 Jun, 2025 | |
| Jennifer Kayden Lee | Evp And Head Of North America | 5,858 | 19 Feb, 2025 |
| Alastair Garfield | Chief Scientific Officer | 3,126 | 03 Jul, 2025 |
| Christopher Paul German | Corporate Controller & Cao | 922 | 14 Aug, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Dec, 2025 | Pamela J. Cramer | Common Stock | A | 3,350 | $27.35 | 24,164 | D | M |
| 11 Dec, 2025 | Pamela J. Cramer | Common Stock | D | 3,350 | $111.00 | 20,814 | D | S |
| 20 Nov, 2025 | Pamela J. Cramer | Common Stock | A | 3,350 | $27.35 | 24,164 | D | M |
| 20 Nov, 2025 | Pamela J. Cramer | Common Stock | D | 3,350 | $105.00 | 20,814 | D | S |
| 10 Nov, 2025 | Pamela J. Cramer | Common Stock | A | 3,515 | $6.80 | 24,329 | D | M |
| 10 Nov, 2025 | Pamela J. Cramer | Common Stock | D | 3,515 | $100.00 | 20,814 | D | S |
| 07 Nov, 2025 | Pamela J. Cramer | Common Stock | D | 19,351 | $98.82 | 20,814 | D | S |
| 07 Nov, 2025 | Pamela J. Cramer | Common Stock | A | 8,805 | $19.02 | 29,619 | D | M |
| 07 Nov, 2025 | Pamela J. Cramer | Common Stock | A | 10,546 | $6.80 | 40,165 | D | M |
| 30 Oct, 2025 | Joseph Shulman | Common Stock | A | 9,748 | $30.66 | 18,257 | D | M |
| 30 Oct, 2025 | Joseph Shulman | Common Stock | D | 9,748 | $115.24 | 8,509 | D | S |
| 28 Oct, 2025 | Joseph Shulman | Common Stock | A | 721 | $30.66 | 11,324 | D | M |
| 28 Oct, 2025 | Joseph Shulman | Common Stock | D | 2,815 | $115.01 | 8,509 | D | S |
| 28 Oct, 2025 | Joseph Shulman | Common Stock | A | 2,094 | $27.35 | 10,603 | D | M |
| 16 Oct, 2025 | Joseph Shulman | Common Stock | A | 2,093 | $27.35 | 10,602 | D | M |
| 16 Oct, 2025 | Joseph Shulman | Common Stock | D | 8,332 | $112.06 | 11,921 | D | S |
| 16 Oct, 2025 | Joseph Shulman | Common Stock | D | 3,412 | $112.81 | 8,509 | D | S |
| 16 Oct, 2025 | Joseph Shulman | Common Stock | A | 12,344 | $30.66 | 22,946 | D | M |
| 16 Oct, 2025 | Joseph Shulman | Common Stock | D | 2,693 | $110.95 | 20,253 | D | S |
| 02 Sep, 2025 | Joseph Shulman | Common Stock | A | 2,094 | $27.35 | 10,603 | D | M |