Oppenheimer Asset Management’s Arrowhead Research ARWR Stock Holding History

Oppenheimer Asset Management’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	$689K	Buy	8,458 +718	+9%	+$53K	0.01%	815
2026 Q1	$485K	Buy	+7,740	New	+$490K	0.01%	873
2023 Q1	–	Sell	-12,592	Closed	-$511K	–	1133
2022 Q4	$511K	Sell	12,592 -1,372	-10%	-$45.5K	0.01%	850
2022 Q3	$462K	Sell	13,964 -485	-3%	-$19.6K	0.01%	856
2022 Q2	$509K	Sell	14,449 -396	-3%	-$14.9K	0.01%	851
2022 Q1	$683K	Sell	14,845 -115	-0.8%	-$5.69K	0.01%	844
2021 Q4	$992K	Sell	14,960 -603	-4%	-$41.4K	0.01%	779
2021 Q3	$972K	Sell	15,563 -693	-4%	-$44.9K	0.01%	752
2021 Q2	$1.35M	Sell	16,256 -308	-2%	-$22.9K	0.02%	663
2021 Q1	$1.1M	Sell	16,564 -484	-3%	-$37.6K	0.02%	696
2020 Q4	$1.31M	Sell	17,048 -314	-2%	-$20.1K	0.02%	602
2020 Q3	$748K	Sell	17,362 -109	-0.6%	-$4.7K	0.01%	697
2020 Q2	$755K	Buy	17,471 +215	+1%	+$7.59K	0.02%	670
2020 Q1	$496K	Sell	17,256 -343	-2%	-$13.8K	0.01%	741
2019 Q4	$1.12M	Sell	17,599 -382	-2%	-$19K	0.02%	597
2019 Q3	$507K	Sell	17,981 -342	-2%	-$10.1K	0.01%	803
2019 Q2	$486K	Sell	18,323 -3,158	-15%	-$69.3K	0.01%	820
2019 Q1	$395K	Sell	21,481 -5,391	-20%	-$88.9K	0.01%	858
2018 Q4	$334K	Buy	+26,872	New	+$367K	0.01%	865

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

Oppenheimer Asset Management's ARWR Position: Q2 2026 in Review

Oppenheimer Asset Management increased its Arrowhead Research (ARWR) stake by 9.3% in Q2 2026, buying an estimated $53K and bringing the position to 8,458 shares worth $689K. The position accounts for 0.01% of the portfolio, ranked #815.

Oppenheimer Asset Management first reported a position in ARWR in Q4 2018 and has held it in 19 quarters since. The position peaked at $1.35M in Q2 2021. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Oppenheimer Asset Management held 8,458 shares of Arrowhead Research worth $689K as of Q2 2026.
Oppenheimer Asset Management bought 718 Arrowhead Research shares in Q2 2026, an estimated $53K.
Arrowhead Research made up 0.01% of Oppenheimer Asset Management's portfolio in Q2 2026, its #815 holding.
Oppenheimer Asset Management first reported a position in Arrowhead Research in Q4 2018 and has held it in 19 quarters since.
Oppenheimer Asset Management's Arrowhead Research position peaked at $1.35M in Q2 2021.
500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Oppenheimer Asset Management's 13F filing for Q2 2026, filed 3 Aug 2026.