EcoR1 Capital’s HOOKIPA Pharma HOOK Stock Holding History

EcoR1 Capital’s Portfolio HOOK Stock Details HOOK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-388,861	Closed	-$782K	–	55
2024 Q4	$782K	Sell	388,861 -182,866	-32%	-$566K	0.03%	57
2024 Q3	$2.46M	Sell	571,727 -5	-0%	-$26	0.08%	54
2024 Q2	$3.38M	Buy	571,732 +112,230	+24%	+$890K	0.1%	50
2024 Q1	$3.27M	Hold	459,502	–	–	0.08%	54
2023 Q4	$3.72M	Hold	459,502	–	–	0.1%	41
2023 Q3	$2.83M	Hold	459,502	–	–	0.1%	43
2023 Q2	$4.04M	Buy	459,502 +212,153	+86%	+$2.36M	0.1%	42
2023 Q1	$1.82M	Hold	247,349	–	–	0.06%	48
2022 Q4	$2M	Sell	247,349 -252,651	-51%	-$2.74M	0.06%	55
2022 Q3	$6.7M	Hold	500,000	–	–	0.2%	41
2022 Q2	$8.15M	Hold	500,000	–	–	0.28%	41
2022 Q1	$11.4M	Buy	+500,000	New	+$8.96M	0.36%	40

Other funds holding HOOK

Gilead Sciences Foster City, California $2.12B AUM 143.53% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

KCM

Knoll Capital Management Miami, Florida $180M AUM 66.11% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

EcoR1 Capital's HOOK Position: Q1 2025 in Review

EcoR1 Capital sold out of HOOKIPA Pharma (HOOK) in Q1 2025, closing a stake of 388,861 shares — an estimated $782K sold.

EcoR1 Capital first reported a position in HOOK in Q1 2022 and held it in 12 quarters. The position peaked at $11.4M in Q1 2022. 32 funds tracked by Wall St. Rank hold HOOK as of Q1 2025.

EcoR1 Capital reported no remaining HOOKIPA Pharma position as of Q1 2025 after selling out during the quarter.
EcoR1 Capital sold 388,861 HOOKIPA Pharma shares in Q1 2025, an estimated $782K.
EcoR1 Capital first reported a position in HOOKIPA Pharma in Q1 2022 and held it in 12 quarters.
EcoR1 Capital's HOOKIPA Pharma position peaked at $11.4M in Q1 2022.
32 funds tracked by Wall St. Rank held HOOKIPA Pharma as of Q1 2025.

Based on EcoR1 Capital's 13F filing for Q1 2025, filed 15 May 2025.