Rhythm Pharmaceuticals, Inc. (RYTM) Insider Trading

Over the last 3 months, RYTM insiders made 0 open-market buys and 2 sales, a net sale of -$4.1M (SEC Form 4). Over the last 6 months, 214 institutions increased and 180 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$4.1M
Insider trades by month Buys Sells
Nov
Dec
Feb
Mar
May
Jun
Context3-month price +27.7%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Jun 25, 2026Arbuckle Stuart AdirectorGrant2,324
Jun 25, 2026TETRAULT LYNN A.directorGrant2,324
Jun 25, 2026GOOD JENNIFER LdirectorGrant2,324
Jun 25, 2026TETRAULT LYNN A.directorGrant3,691$107.55
Jun 25, 2026GOOD JENNIFER LdirectorGrant3,691$107.55
Jun 25, 2026MCGIRR DAVID W JdirectorGrant3,691$107.55
Jun 25, 2026Arbuckle Stuart AdirectorOption4,712
Jun 25, 2026GOOD JENNIFER LdirectorOption4,712
Jun 25, 2026JEAN CHRISTOPHEdirectorGrant2,324
Jun 25, 2026JEAN CHRISTOPHEdirectorGrant3,691$107.55
Jun 25, 2026JEAN CHRISTOPHEdirectorOption4,712
Jun 25, 2026Arbuckle Stuart AdirectorGrant3,691$107.55
Jun 25, 2026MCGIRR DAVID W JdirectorOption4,712
Jun 25, 2026TETRAULT LYNN A.directorOption4,712
Jun 25, 2026MCGIRR DAVID W JdirectorGrant2,324
Jun 24, 2026TETRAULT LYNN A.directorOption37,000$28.27
Jun 24, 2026TETRAULT LYNN A.directorSell37,000$100.32
May 20, 2026Smith Hunter Cofficer: Chief Financial OfficerOption3,000$17.87
May 19, 2026German Christopher Paulofficer: Corporate Controller & CAOOption1,406$17.97
May 19, 2026German Christopher Paulofficer: Corporate Controller & CAOSell4,643$92.21
May 19, 2026German Christopher Paulofficer: Corporate Controller & CAOOption1,349$49.23
May 19, 2026German Christopher Paulofficer: Corporate Controller & CAOOption1,687$56.69
Apr 3, 2026Popovits Kimberly JdirectorGrant6,808
Apr 3, 2026Mazabraud Yannofficer: EVP, Head of InternationalOption2,500
Apr 3, 2026Mazabraud Yannofficer: EVP, Head of InternationalOption12,875
Apr 3, 2026Mazabraud Yannofficer: EVP, Head of InternationalOption10,375
Apr 3, 2026Popovits Kimberly JdirectorGrant10,257$88.12
Mar 6, 2026German Christopher Paulofficer: Corporate Controller & CAOOption1,500$17.97
Mar 6, 2026German Christopher Paulofficer: Corporate Controller & CAOSell5,614$89.56
Mar 4, 2026Mazabraud Yannofficer: EVP, Head of InternationalGrant35,000$94.94

Source: RYTM SEC Form 4 filings, latest Jun 25, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their RYTM positions over the last 6 months (SEC Form 13F).

Increased
214
New positions
115
Reduced
180
Sold out
93
Largest moves
InstitutionActionSharesFiled
RA CAPITAL MANAGEMENT, L.P.Increased6.7MFeb 17, 2026
RA CAPITAL MANAGEMENT, L.P.Unchanged6.7MMay 15, 2026
BLACKROCK, INC.Reduced6.3MFeb 12, 2026
BLACKROCK, INC.Reduced6.2MMay 13, 2026
VANGUARD GROUP INCIncreased6.2MJan 29, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position5.9MMay 15, 2026
BAKER BROS. ADVISORS LPUnchanged5.6MMay 15, 2026
BAKER BROS. ADVISORS LPUnchanged5.6MFeb 17, 2026
PERCEPTIVE ADVISORS LLCIncreased4.7MMay 29, 2026
PRIMECAP MANAGEMENT CO/CA/Reduced3.5MFeb 11, 2026
PRIMECAP MANAGEMENT CO/CA/Reduced3.4MMay 11, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position3.0MMay 8, 2026
NEA MANAGEMENT COMPANY, LLCUnchanged2.9MFeb 17, 2026
PERCEPTIVE ADVISORS LLCReduced2.5MFeb 17, 2026
STATE STREET CORPIncreased2.3MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.