Aigen Investment Management’s Arrowhead Research ARWR Stock Holding History

Aigen Investment 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	$246K	Buy	+3,022	New	+$223K	0.07%	369
2025 Q4	–	Sell	-7,548	Closed	-$260K	–	588
2025 Q3	$260K	Buy	+7,548	New	+$166K	0.04%	583
2023 Q4	–	Sell	-35,140	Closed	-$944K	–	788
2023 Q3	$944K	Buy	35,140 +25,120	+251%	+$770K	0.18%	175
2023 Q2	$357K	Buy	+10,020	New	+$345K	0.05%	435
2021 Q3	–	Sell	-10,042	Closed	-$832K	–	466
2021 Q2	$832K	Buy	10,042 +6,622	+194%	+$493K	0.15%	156
2021 Q1	$227K	Buy	+3,420	New	+$265K	0.03%	496
2020 Q1	–	Sell	-25,922	Closed	-$1.64M	–	1256
2019 Q4	$1.64M	Buy	+25,922	New	+$1.29M	0.27%	89

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 $3.38T AUM 44.17% 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

Aigen Investment Management's ARWR Position: Q2 2026 in Review

Aigen Investment Management opened a new position in Arrowhead Research (ARWR) in Q2 2026: 3,022 shares worth $246K. The stake represents 0.07% of the portfolio and ranks #369 among its holdings. This is a return to the name: Aigen Investment Management previously reported a position in ARWR as recently as Q3 2025.

Aigen Investment Management first reported a position in ARWR in Q4 2019 and has held it in 7 quarters since. The position peaked at $1.64M in Q4 2019. 502 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Aigen Investment Management held 3,022 shares of Arrowhead Research worth $246K as of Q2 2026.
Arrowhead Research was a new Aigen Investment Management position in Q2 2026.
Arrowhead Research made up 0.07% of Aigen Investment Management's portfolio in Q2 2026, its #369 holding.
Aigen Investment Management first reported a position in Arrowhead Research in Q4 2019 and has held it in 7 quarters since.
Aigen Investment Management's Arrowhead Research position peaked at $1.64M in Q4 2019.
502 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Aigen Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.