Ikarian Capital’s Arrowhead Research ARWR Stock Holding History

Ikarian Capital’s Portfolio ARWR Stock Details ARWR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$8.15M	Buy	100,000 +42,500	+74%	+$3.14M	0.88%	33
2026 Q1	$3.61M	Buy	+57,500	New	+$3.64M	0.29%	76
2021 Q1	–	Sell	-200,000	Closed	-$15.3M	–	301
2020 Q4	$15.3M	Buy	+200,000	New	+$12.8M	0.68%	35
2020 Q2	–	Sell	-7,200	Closed	-$207K	–	173
2020 Q1	$207K	Sell	7,200 -92,800	-93%	-$3.74M	0.02%	145
2019 Q4	$6.34M	Buy	+100,000	New	+$4.96M	1.03%	30

Other funds holding ARWR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

ACA

Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

FAM

Fred Alger Management New York $30B AUM 76.99% 1-Year Est. Return

Ikarian Capital's ARWR Position: Q2 2026 in Review

Ikarian Capital opened a new position in Arrowhead Research (ARWR) in Q2 2026: 38,278 shares worth $3.12M. The stake represents 0.34% of the portfolio and ranks #72 among its holdings. This is a return to the name: Ikarian Capital previously reported a position in ARWR as recently as Q2 2023.

Ikarian Capital first reported a position in ARWR in Q2 2023 and has held it in 2 quarters since. The position peaked at $4.64M in Q2 2023. 501 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Ikarian Capital held 38,278 shares of Arrowhead Research worth $3.12M as of Q2 2026.
Arrowhead Research was a new Ikarian Capital position in Q2 2026.
Arrowhead Research made up 0.34% of Ikarian Capital's portfolio in Q2 2026, its #72 holding.
Ikarian Capital first reported a position in Arrowhead Research in Q2 2023 and has held it in 2 quarters since.
Ikarian Capital's Arrowhead Research position peaked at $4.64M in Q2 2023.
501 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Ikarian Capital's 13F filing for Q2 2026, filed 14 Aug 2026.