EcoR1 Capital’s HilleVax HLVX Stock Holding History

EcoR1 Capital’s Portfolio HLVX Stock Details HLVX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-2,420,243	Closed	-$4.82M	–	34
2025 Q2	$4.82M	Buy	+2,420,243	New	+$4.43M	0.29%	31

EcoR1 Capital's HLVX Position: Q3 2025 in Review

EcoR1 Capital sold out of HilleVax (HLVX) in Q3 2025, closing a stake of 2,420,243 shares — an estimated $4.82M sold.

EcoR1 Capital first reported a position in HLVX in Q2 2025 and held it in 1 quarter. The position peaked at $4.82M in Q2 2025. 1 fund tracked by Wall St. Rank holds HLVX as of Q3 2025.

EcoR1 Capital reported no remaining HilleVax position as of Q3 2025 after selling out during the quarter.
EcoR1 Capital sold 2,420,243 HilleVax shares in Q3 2025, an estimated $4.82M.
EcoR1 Capital first reported a position in HilleVax in Q2 2025 and held it in 1 quarter.
EcoR1 Capital's HilleVax position peaked at $4.82M in Q2 2025.
1 fund tracked by Wall St. Rank held HilleVax as of Q3 2025.

Based on EcoR1 Capital's 13F filing for Q3 2025, filed 14 Nov 2025.