RAPT — RAPT Therapeutics Inc

Ownership history in Siren, L.L.C.  ·  2 quarters on record

This page tracks every 13F SEC filing in which Siren, L.L.C. reported a position in RAPT Therapeutics Inc (RAPT). 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
1.39% (2025 Q4)
Avg. % of fund
0.99%
First filed
2025 Q3
Last filed
2025 Q4
Quarters held
2
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 1,375,000 +794,534 +136.9% 1.39% $46.6M $33.87
2025 Q3 INITIATED 580,466 — — 0.59% $15.0M $25.79
% of Fund (quarterly)    RAPT price (monthly, adj. close)

Other funds also holding RAPT

As of 2025 Q4 — sorted by position size

Medicxi Ventures Management (Jersey) Ltd 3Y 11.33% FCPM III SERVICES B.V. 8.14% Column Group LLC 3Y 6.39% GREAT POINT PARTNERS LLC 3Y 7Y 6.38% BOONE CAPITAL MANAGEMENT LLC 3Y 5.0% TCG Crossover Management, LLC 3Y 2.89% Octagon Capital Advisors LP 3Y 2.36% Redmile Group, LLC 3Y 7Y 2.21% Velan Capital Investment Management LP 3Y 2.12% Caligan Partners LP 3Y 1.8%
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