RYTM — RHYTHM PHARMACEUTICALS INC

Ownership history in FOX RUN MANAGEMENT, L.L.C.  ·  4 quarters on record

This page tracks every 13F SEC filing in which FOX RUN MANAGEMENT, L.L.C. reported a position in RHYTHM PHARMACEUTICALS INC (RYTM). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.22% (2023 Q1)
Avg. % of fund
0.13%
First filed
2023 Q1
Last filed
2025 Q3
Quarters held
4
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 2,517 -16,655 -86.9% 0.04% $254K $100.99
2025 Q1 ADDED 19,172 +1,986 +11.6% 0.16% $1.0M $52.97
2023 Q3 REDUCED 17,186 -20,764 -54.7% 0.12% $394K $22.92
2023 Q1 INITIATED 37,950 — — 0.22% $677K $17.84
% of Fund (quarterly)    RYTM price (monthly, adj. close)

Other funds also holding RYTM

As of 2025 Q4 — sorted by position size

Checkpoint Capital L.P. 33.18% NEA Management Company, LLC 3Y 7Y 15.88% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 7.31% PERCEPTIVE ADVISORS LLC 3Y 7Y 4.86% Nan Fung Group Holdings Ltd 3Y 4.71% Opaleye Management Inc. 3Y 7Y 4.66% Sio Capital Management, LLC 3Y 7Y 4.47% Rock Springs Capital Management LP 3Y 7Y 3.81% BAKER BROS. ADVISORS LP 3Y 7Y 3.51% Integral Health Asset Management, LLC 3Y 2.52%
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