Optiver Holding’s Arrowhead Research ARWR Stock Holding History

Optiver Holding’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	–	Sell	-408	Closed	-$25.6K	–	2778
2026 Q1	$25.6K	Buy	408 +186	+84%	+$11.8K	﹤0.01%	1058
2025 Q4	$14.7K	Sell	222 -400	-64%	-$19.6K	﹤0.01%	1083
2025 Q3	$21.5K	Buy	+622	New	+$13.7K	﹤0.01%	950

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

Optiver Holding's ARWR Position: Q2 2026 in Review

Optiver Holding sold out of Arrowhead Research (ARWR) in Q2 2026, closing a stake of 408 shares — an estimated $25.6K sold.

Optiver Holding first reported a position in ARWR in Q3 2025 and held it in 3 quarters. The position peaked at $25.6K in Q1 2026. 502 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Optiver Holding reported no remaining Arrowhead Research position as of Q2 2026 after selling out during the quarter.
Optiver Holding sold 408 Arrowhead Research shares in Q2 2026, an estimated $25.6K.
Optiver Holding first reported a position in Arrowhead Research in Q3 2025 and held it in 3 quarters.
Optiver Holding's Arrowhead Research position peaked at $25.6K in Q1 2026.
502 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.