RYTM — RHYTHM PHARMACEU

Ownership history in MARSHALL WACE, LLP  ·  18 quarters on record

This page tracks every 13F SEC filing in which MARSHALL WACE, LLP reported a position in RHYTHM PHARMACEU (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
0.05% (2024 Q4)
Avg. % of fund
0.01%
First filed
2018 Q4
Last filed
2025 Q3
Quarters held
18
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 171,834 -204,408 -54.3% 0.02% $17.4M $100.99
2025 Q2 REDUCED 376,242 -158,861 -29.7% 0.03% $23.8M $63.19
2025 Q1 REDUCED 535,103 -157,700 -22.8% 0.04% $28.3M $52.97
2024 Q4 ADDED 692,803 +286,188 +70.4% 0.05% $38.8M $55.98
14 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% 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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