Activity — EcoR1 Capital, LLC

2 moves.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jan 12, 2026	Buy	AKTS Aktis Oncology, Inc. Common Stock	$37.40M	+2.1M +91.50%	4,348,658 7.87% of shares	high
Jan 12, 2026	Buy	AKTS Aktis Oncology, Inc. Common Stock	$2.60M	+144K +71.20%	347,305 0.63% of shares	high