RYTMNasdaq SEC EDGAR

RHYTHM PHARMACEUTICALS, INC.

Pharmaceutical Preparations·BOSTON, MA·FY end 12/31·CIK 1649904

Overview Financials Compensation Governance Insiders Filings

Net 180d

-$2.7M

0 buys / 24 sales

Open-market buys

0 transactions

Open-market sales

$2.7M

24 transactions

Cluster windows

0 buy / 0 sell

Insider transaction timeline

2-year window · 13 buys · 30 sales · dot size = transaction value

AcquisitionsSalesCluster window (≥2 sales / month)

Form 4 transactions

Showing 30 of 43

Date	Insider	Type	Shares	Value
2026-04-01	Mazabraud YannEVP, Head of International	Exercise	12,875	—
2026-03-12	Mathers Edward T	Acquired	4,199	—
2026-03-04	German Christopher PaulCorporate Controller & CAO	Exercise	1,500	$27.0K
2026-03-04	German Christopher PaulCorporate Controller & CAO	Sale	5,614	-$502.8K
2026-03-02	Mathers Edward T	Acquired	4,198	—
2026-03-02	Smith Hunter CChief Financial Officer	Exercise	6,099	$41.5K
2026-03-01	German Christopher PaulCorporate Controller & CAO	Exercise	1,162	—
2026-03-01	German Christopher PaulCorporate Controller & CAO	Tax withhold	342	-$32.5K
2026-02-19	Smith Hunter CChief Financial Officer	Sale	1,308	-$131.2K
2026-02-19	Smith Hunter CChief Financial Officer	Sale	1,692	-$170.8K
2026-02-19	Smith Hunter CChief Financial Officer	Sale	800	-$81.7K
2026-02-19	Smith Hunter CChief Financial Officer	Sale	585	-$60.4K
2026-02-17	Smith Hunter CChief Financial Officer	Sale	1,200	-$119.3K
2026-02-17	Smith Hunter CChief Financial Officer	Sale	200	-$20.1K
2026-02-17	Smith Hunter CChief Financial Officer	Sale	900	-$91.5K
2026-02-17	Smith Hunter CChief Financial Officer	Sale	1,069	-$110.1K
2026-02-17	Smith Hunter CChief Financial Officer	Sale	200	-$20.8K
2026-02-14	Mazabraud YannEVP, Head of International	Exercise	10,000	—
2026-02-12	Smith Hunter CChief Financial Officer	Sale	292	-$28.1K
2026-02-12	Smith Hunter CChief Financial Officer	Sale	400	-$39.1K
2026-02-12	Smith Hunter CChief Financial Officer	Sale	800	-$79.2K
2026-02-12	Smith Hunter CChief Financial Officer	Sale	100	-$10.0K
2026-02-11	Smith Hunter CChief Financial Officer	Sale	2,266	-$222.9K
2026-02-11	Smith Hunter CChief Financial Officer	Sale	400	-$39.8K
2026-02-11	Smith Hunter CChief Financial Officer	Sale	100	-$10.1K
2026-02-10	Smith Hunter CChief Financial Officer	Sale	1,913	-$196.4K
2026-02-10	Smith Hunter CChief Financial Officer	Sale	700	-$72.6K
2026-02-10	Smith Hunter CChief Financial Officer	Sale	100	-$10.5K
2026-02-05	Smith Hunter CChief Financial Officer	Sale	3,381	-$358.6K
2026-02-04	Smith Hunter CChief Financial Officer	Sale	1,500	-$157.1K