Campbell & Co Investment Adviser’s Arrowhead Research ARWR Stock Holding History

Campbell & Co Investment Adviser’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	-18,936	Closed	-$1.19M	–	1033
2026 Q1	$1.19M	Buy	+18,936	New	+$1.2M	0.07%	450
2025 Q1	–	Sell	-19,166	Closed	-$360K	–	1022
2024 Q4	$360K	Sell	19,166 -124,591	-87%	-$2.57M	0.03%	783
2024 Q3	$2.78M	Buy	+143,757	New	+$3.51M	0.21%	112
2024 Q2	–	Sell	-37,816	Closed	-$1.08M	–	1042
2024 Q1	$1.08M	Buy	37,816 +21,855	+137%	+$699K	0.09%	360
2023 Q4	$488K	Buy	+15,961	New	+$424K	0.04%	726
2022 Q3	–	Sell	-9,085	Closed	-$320K	–	701
2022 Q2	$320K	Buy	+9,085	New	+$342K	0.09%	431
2019 Q3	–	Sell	-14,679	Closed	-$389K	–	595
2019 Q2	$389K	Buy	+14,679	New	+$322K	0.18%	215
2019 Q1	–	Sell	-10,746	Closed	-$148K	–	505
2018 Q4	$148K	Buy	+10,746	New	+$147K	0.15%	295

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

Campbell & Co Investment Adviser's ARWR Position: Q2 2026 in Review

Campbell & Co Investment Adviser sold out of Arrowhead Research (ARWR) in Q2 2026, closing a stake of 18,936 shares — an estimated $1.19M sold.

Campbell & Co Investment Adviser first reported a position in ARWR in Q4 2018 and held it in 8 quarters. The position peaked at $2.78M in Q3 2024. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Campbell & Co Investment Adviser reported no remaining Arrowhead Research position as of Q2 2026 after selling out during the quarter.
Campbell & Co Investment Adviser sold 18,936 Arrowhead Research shares in Q2 2026, an estimated $1.19M.
Campbell & Co Investment Adviser first reported a position in Arrowhead Research in Q4 2018 and held it in 8 quarters.
Campbell & Co Investment Adviser's Arrowhead Research position peaked at $2.78M in Q3 2024.
500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q2 2026, filed 3 Aug 2026.