Fred Alger Management’s Arrowhead Research ARWR Stock Holding History

Fred Alger 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	$269M	Sell	3,301,919 -40,574	-1%	-$3M	0.9%	21
2026 Q1	$210M	Buy	3,342,493 +1,509,496	+82%	+$95.6M	0.92%	19
2025 Q4	$122M	Buy	1,832,997 +1,526,164	+497%	+$74.8M	0.48%	33
2025 Q3	$10.6M	Buy	+306,833	New	+$6.75M	0.04%	176
2024 Q2	–	Sell	-1,543	Closed	-$44.1K	–	430
2024 Q1	$44.1K	Sell	1,543 -37,093	-96%	-$1.19M	﹤0.01%	433
2023 Q4	$1.18M	Sell	38,636 -7,783	-17%	-$207K	0.01%	363
2023 Q3	$1.25M	Sell	46,419 -120,636	-72%	-$3.7M	0.01%	351
2023 Q2	$5.96M	Buy	+167,055	New	+$5.76M	0.03%	230
2021 Q4	–	Sell	-41,803	Closed	-$2.61M	–	512
2021 Q3	$2.61M	Buy	41,803 +15,249	+57%	+$987K	0.01%	333
2021 Q2	$2.2M	Sell	26,554 -4,719	-15%	-$351K	0.01%	346
2021 Q1	$2.07M	Sell	31,273 -4,048	-11%	-$314K	0.01%	344
2020 Q4	$2.71M	Buy	+35,321	New	+$2.26M	0.01%	317
2020 Q2	–	Sell	-8,000	Closed	-$230K	–	503
2020 Q1	$230K	Sell	8,000 -6,000	-43%	-$242K	﹤0.01%	393
2019 Q4	$888K	Buy	+14,000	New	+$695K	﹤0.01%	351
2014 Q4	–	Sell	-287,749	Closed	-$4.25M	–	580
2014 Q3	$4.25M	Sell	287,749 -31,496	-10%	-$430K	0.02%	357
2014 Q2	$4.57M	Buy	319,245 +274,095	+607%	+$3.59M	0.02%	365
2014 Q1	$741K	Buy	+45,150	New	+$793K	﹤0.01%	417

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

BBA

Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return

Fred Alger Management's ARWR Position: Q2 2026 in Review

Fred Alger Management reduced its Arrowhead Research (ARWR) stake by 1.2% in Q2 2026, selling an estimated $3M and leaving 3,301,919 shares worth $269M. The position accounts for 0.9% of the portfolio, ranked #21.

Fred Alger Management first reported a position in ARWR in Q1 2014 and has held it in 17 quarters since. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Fred Alger Management held 3,301,919 shares of Arrowhead Research worth $269M as of Q2 2026.
Fred Alger Management sold 40,574 Arrowhead Research shares in Q2 2026, an estimated $3M.
Arrowhead Research made up 0.9% of Fred Alger Management's portfolio in Q2 2026, its #21 holding.
Fred Alger Management first reported a position in Arrowhead Research in Q1 2014 and has held it in 17 quarters since.
500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

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