APLS — Apellis Pharmaceuticals 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 Apellis Pharmaceuticals Inc (APLS). 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

3.97% (2024 Q4)

Avg. % of fund

2.8%

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	2,578,396	—	0%	1.93%	$64.8M	$25.12
2025 Q3	UNCHANGED	2,578,396	—	0%	2.28%	$58.3M	$22.63
2025 Q2	UNCHANGED	2,578,396	—	0%	2.31%	$44.6M	$17.31
2025 Q1	REDUCED	2,578,396	-237,862	-8.4%	3.21%	$56.4M	$21.87

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

Other funds also holding APLS

As of 2025 Q4 — sorted by position size

Deep Track Capital, LP 3Y 3.47% Avoro Capital Advisors LLC 3Y 7Y 3.02% SUVRETTA CAPITAL MANAGEMENT, LLC 3Y 7Y 2.13% RTW INVESTMENTS, LP 3Y 7Y 1.93% Exome Asset Management LLC 1.63% Logos Global Management LP 3Y 1.52% Kynam Capital Management, LP 3Y 1.46% ORBIMED ADVISORS LLC 3Y 7Y 1.25% SPHERA FUNDS MANAGEMENT LTD. 3Y 7Y 1.22% HighVista Strategies LLC 3Y 7Y 0.98%

← Back to Siren, L.L.C. Holdings