Wednesday, October 28, 2026
Data from SEC filings, checked daily
Public filings, plainly told
StockCIK 1649904

RHYTHM PHARMACEUTICALS, INC. (RYTM): Insider Trades and Fund Holdings

In the past 12 months, RHYTHM PHARMACEUTICALS, INC. insiders reported 0 open-market purchases worth $0 and 6 sales worth $28.8M; 6 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months
$0Bought by insiders, 12 months
$28.8MSold by insiders, 12 months
2Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 14, 2026.

Recent RYTM insider trades
FiledTradedInsiderRoleTypeSharesPrice ($)ValueHoldingFiling
Sep 14Sep 14David P. MeekerCEOCEO▼ SELL10b5-150,000102.67$5.13M−17%Form 4 ↗
Sep 1Aug 31Hunter C. SmithCFOCFO▼ SELL10b5-162,774105.46$6.62M−36%Form 4 ↗
Aug 17Aug 13Alastair GarfieldChief Scientific OfficerChief Scientific Officer▼ SELL10b5-17,763117.57$913K−77%Form 4 ↗
Aug 17Aug 13Joseph ShulmanChief Technical OfficerChief Technical Officer▼ SELL10b5-15,079119.75$608K−24%Form 4 ↗
Aug 14Aug 13Jennifer Kayden LeeEVPEVP▼ SELL10b5-175,834117.38$8.90MAll soldForm 4 ↗
Aug 14Aug 12Yann MazabraudEVPEVP▼ SELL10b5-157,000116.15$6.62M−51%Form 4 ↗
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

InsiderRoleBuysBoughtSellsSoldLatest
David P. MeekerCEO0$01$5.13MSep 14, 2026
Hunter C. SmithCFO0$01$6.62MSep 1, 2026
Alastair GarfieldChief Scientific Officer0$01$913KAug 17, 2026
Joseph ShulmanChief Technical Officer0$01$608KAug 17, 2026
Jennifer Kayden LeeEVP0$01$8.90MAug 14, 2026
Yann MazabraudEVP0$01$6.62MAug 14, 2026
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Tracked funds that report RYTM

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

FundQuarterSharesValue% of portfolioChange
Renaissance TechnologiesQ2 202668,281$7.58M0.01%▼ −73.5%
Duquesne Family OfficeQ2 2026203,618$23K0.52%▲ New
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →