ANNX — ANNEXON INC

Ownership history in BVF INC/IL · 12 quarters on record

This page tracks every 13F SEC filing in which BVF INC/IL reported a position in ANNEXON INC (ANNX). 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

1.54% (2025 Q4)

Avg. % of fund

0.97%

First filed

2022 Q2

Last filed

2025 Q4

Quarters held

12

Quarter	Action	Shares	Change	Chg %	% of Fund	Mkt Value	Price (EOQ)
2025 Q4	ADDED	9,128,080	+2,128,080	+30.4%	1.54%	$45.8M	$5.02
2025 Q3	UNCHANGED	7,000,000	—	0%	0.87%	$21.4M	$3.05
2025 Q2	UNCHANGED	7,000,000	—	0%	0.60%	$16.8M	$2.40
2025 Q1	UNCHANGED	7,000,000	—	0%	0.55%	$13.5M	$1.93

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

Other funds also holding ANNX

As of 2025 Q4 — sorted by position size

Redmile Group, LLC 3Y 7Y 3.72% Tetragon Partners GP Ltd 3Y 7Y 2.15% Bain Capital Life Sciences Investors, LLC 3Y 7Y 2.02% Opaleye Management Inc. 3Y 7Y 1.72% Palo Alto Investors LP 3Y 7Y 1.67% MAK CAPITAL ONE LLC 3Y 7Y 1.63% Longaeva Partners L.P. 1.31% SPHERA FUNDS MANAGEMENT LTD. 3Y 7Y 1.28% Bellevue Group AG 3Y 7Y 0.49% Board of Trustees of The Leland Stanford Junior University 3Y 7Y 0.49%

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