ERAS — Erasca Inc

Ownership history in Siren, L.L.C. · 6 quarters on record

This page tracks every 13F SEC filing in which Siren, L.L.C. reported a position in Erasca Inc (ERAS). 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

1.21% (2024 Q3)

Avg. % of fund

0.86%

First filed

2024 Q3

Last filed

2025 Q4

Quarters held

6

Quarter	Action	Shares	Change	Chg %	% of Fund	Mkt Value	Price (EOQ)
2025 Q4	UNCHANGED	8,757,249	—	0%	0.97%	$32.6M	$3.72
2025 Q3	UNCHANGED	8,757,249	—	0%	0.75%	$19.1M	$2.18
2025 Q2	UNCHANGED	8,757,249	—	0%	0.58%	$11.1M	$1.27
2025 Q1	REDUCED	8,757,249	-99,930	-1.1%	0.68%	$12.0M	$1.37

% of Fund (quarterly) ERAS price (monthly, adj. close)

Other funds also holding ERAS

As of 2025 Q4 — sorted by position size

5AM Venture Management, LLC 3Y 6.32% ARCH Venture Management, LLC 3Y 7Y 6.31% VR Adviser, LLC 3Y 3.28% Logos Global Management LP 3Y 2.92% Frazier Life Sciences Management, L.P. 3Y 2.27% Vivo Capital, LLC 3Y 7Y 2.23% Paradigm Biocapital Advisors LP 3Y 1.34% SUVRETTA CAPITAL MANAGEMENT, LLC 3Y 7Y 1.11% Affinity Asset Advisors, LLC 3Y 0.83% SILVERARC CAPITAL MANAGEMENT, LLC 3Y 0.68%

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