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Rhythm Pharmaceuticals, Inc. planned insider sales

In the last twelve months insiders at Rhythm Pharmaceuticals, Inc. filed 19 Form 144 notices of planned sales, 474,158 shares worth $49.9 million at the time of filing, from 10 sellers. The latest, filed 14 September 2026: David Meeker (director, officer), 50,000 shares worth $5.2 million, planned for around 14 September 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
14 September 2026David MeekerDirector, Officer50,000$5.2 million14 September 202650,000 shares from 14 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
31 August 2026Hunter SmithOfficer62,774$6.7 million31 August 202662,774 shares from 31 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock UnitsForm 144
13 August 2026Joseph J ShulmanOfficer5,079$597,29013 August 20265,079 shares from 13 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock UnitsForm 144
13 August 2026Alastair GarfieldOfficer7,763$912,92913 August 20267,763 shares from 13 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
13 August 2026Jennifer Kayden LeeOfficer75,834$8.9 million13 August 202675,834 shares from 13 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock UnitsForm 144
12 August 2026Yann MazabraudOfficer57,000$6.4 million12 August 202657,000 shares from 12 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock UnitsForm 144
11 August 2026Pamela CramerOfficer11,406$1.3 million11 August 2026None on Form 4 yetMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock UnitsForm 144
10 August 2026Pamela CramerOfficer3,520$407,01810 August 2026None on Form 4 yetMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
22 June 2026Lynn TetraultDirector37,000$3.6 million22 June 202637,000 shares from 22 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
4 March 2026Camille L BedrosianDirector64,540$5.8 million4 March 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of options under a registered planForm 144
3 March 2026Camille L BedrosianDirector35,460$3.2 million3 March 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of options under a registered planForm 144
5 February 2026Hunter SmithOfficer18,406$2.0 million5 February 202621,653 shares from 4 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
4 February 2026Hunter SmithOfficer3,247$351,6184 February 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
11 December 2025Pamela CramerOfficer3,350$350,98011 December 20253,350 shares from 11 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
20 November 2025Pamela CramerOfficer3,350$345,55220 November 20253,350 shares from 20 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
10 November 2025Pamela CramerOfficer3,515$352,55410 November 20253,515 shares from 10 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
7 November 2025Pamela CramerOfficer19,351$1.9 million7 November 202519,351 shares from 7 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
30 October 2025Joseph ShulmanOfficer9,748$1.1 million30 October 20259,748 shares from 30 October 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
28 October 2025Joseph ShulmanOfficer2,815$314,01328 October 20252,815 shares from 28 October 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?