Primecap Management Co/Ca/ - Jun 30, 2025 SCHEDULE 13G/A Report for Rhythm Pharmaceuticals, Inc. COM (RYTM)

Reporting Manager
PRIMECAP MANAGEMENT CO/CA/
Symbol
RYTM
Shares outstanding
63.6M shares
Disclosed Ownership
4.88M shares
Ownership
7.67%
Form type
SCHEDULE 13G/A
Date filed
8/14/2025, 01:28 PM
Date of event
Jun 30, 2025
Previous filing
May 13, 2025
Next filing
Nov 14, 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
PRIMECAP MANAGEMENT CO/CA/ 7.67% 4.88M 4.88M 0 Jorge A. Rodriguez Deputy Chief Compliance Officer