Symbol
RYTM on Nasdaq
Investment type
Equity / Common Stock, $0.001 par value per share
Latest Disclosed Shares Owned
3,478,669 shares
Security Ownership %
5.2%
Shares, Excluding Options vs Price
Value, Excluding Options

PRIMECAP MANAGEMENT CO/CA/ ownership in RHYTHM PHARMACEUTICALS, INC. Common Stock, $0.001 par value per share (RYTM)

12 Feb 2026 - PRIMECAP MANAGEMENT CO/CA/ has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,478,669 shares of RHYTHM PHARMACEUTICALS, INC. Common Stock, $0.001 par value per share (RYTM). This represents 5.2% ownership of the company. In their previous filing dated 14 Nov 2025, PRIMECAP MANAGEMENT CO/CA/ had reported owning 4,262,859 shares, indicating a decrease of +18%. .
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.