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Rhythm Pharmaceuticals, Inc. (RYTM)

Rhythm Pharmaceuticals, Inc. (RYTM) Insider Trading

Directors, officers and holders of more than 10% of RYTM report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 460 transactions on file: 0 with code P, 20 with code S and 30 with other codes.

DateInsiderCodeShares
Sep 14, 2026Meeker David PS Sale2,300
Sep 14, 2026Meeker David PS Sale6,439
Sep 14, 2026Meeker David PS Sale8,698
Sep 14, 2026Meeker David PS Sale30,746
Sep 14, 2026Meeker David PM Exercise50,000
Sep 14, 2026Meeker David PS Sale1,817
Sep 14, 2026Meeker David PM Exercise50,000
Aug 31, 2026Smith Hunter CS Sale28,188
Aug 31, 2026Smith Hunter CM Exercise57,187
Aug 31, 2026Smith Hunter CM Exercise57,187
Aug 31, 2026Smith Hunter CS Sale23,072
Aug 31, 2026Smith Hunter CS Sale11,514
Aug 17, 2026Joshi ManherA Award50,000
Aug 17, 2026Joshi ManherA Award25,000
Aug 13, 2026Garfield AlastairS Sale3,400
Aug 13, 2026Lee Jennifer KaydenM Exercise35,000
Aug 13, 2026Garfield AlastairS Sale2,007
Aug 13, 2026Garfield AlastairS Sale800
Aug 13, 2026Shulman JosephM Exercise2,024
Aug 13, 2026Lee Jennifer KaydenS Sale75,834
Aug 13, 2026Garfield AlastairS Sale1,556
Aug 13, 2026Lee Jennifer KaydenM Exercise21,601
Aug 13, 2026Lee Jennifer KaydenM Exercise21,601
Aug 13, 2026Shulman JosephM Exercise2,024
Aug 13, 2026Shulman JosephS Sale5,079
Aug 13, 2026Lee Jennifer KaydenM Exercise35,000
Aug 12, 2026Mazabraud YannS Sale18,208
Aug 12, 2026Mazabraud YannM Exercise46,625
Aug 12, 2026Mazabraud YannM Exercise46,625
Aug 12, 2026Mazabraud YannS Sale2,300
Aug 12, 2026Mazabraud YannS Sale1,000
Aug 12, 2026Mazabraud YannS Sale3,605
Aug 12, 2026Mazabraud YannS Sale14,568
Aug 12, 2026Mazabraud YannS Sale17,319
Jul 1, 2026Garfield AlastairM Exercise4,445
Jul 1, 2026Garfield AlastairF Tax Payment2,150
Jul 1, 2026Garfield AlastairM Exercise4,445
Jun 24, 2026GOOD JENNIFER LA Award3,691
Jun 24, 2026Arbuckle Stuart AA Award3,691
Jun 24, 2026TETRAULT LYNN A.A Award2,324
Jun 24, 2026TETRAULT LYNN A.A Award3,691
Jun 24, 2026GOOD JENNIFER LA Award2,324
Jun 24, 2026MCGIRR DAVID W JA Award3,691
Jun 24, 2026JEAN CHRISTOPHEA Award2,324
Jun 24, 2026JEAN CHRISTOPHEA Award3,691
Jun 24, 2026MCGIRR DAVID W JA Award2,324
Jun 24, 2026Arbuckle Stuart AA Award2,324
Jun 23, 2026JEAN CHRISTOPHEM Exercise4,712
Jun 23, 2026MCGIRR DAVID W JM Exercise4,712
Jun 23, 2026GOOD JENNIFER LM Exercise4,712

The full Form 4 history is on the RYTM company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.