Bank of America’s Arrowhead Research ARWR Stock Holding History

Bank of America’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
2019 Q4	–	Sell	-150,000	Closed	-$4.23M	–	7059
2019 Q3	$4.23M	Hold	150,000	–	–	﹤0.01%	3369
2019 Q2	$3.98M	Sell	150,000 -100,000	-40%	-$2.19M	﹤0.01%	3437
2019 Q1	$4.59M	Buy	+250,000	New	+$4.12M	﹤0.01%	3242
2018 Q4	–	Sell	-85,600	Closed	-$1.64M	–	7086
2018 Q3	$1.64M	Buy	+85,600	New	+$1.4M	﹤0.01%	4140
2014 Q3	–	Sell	-95,200	Closed	-$1.36M	–	7986
2014 Q2	$1.36M	Buy	+95,200	New	+$1.25M	﹤0.01%	3726

Other funds holding ARWR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

ACA

Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

FAM

Fred Alger Management New York $22.8B AUM 64.63% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPC

Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return

Bank of America's ARWR Position: Q1 2026 in Review

Bank of America increased its Arrowhead Research (ARWR) stake by 71% in Q1 2026, buying an estimated $28M and bringing the position to 1,064,455 shares worth $66.7M. The position accounts for ﹤0.01% of the portfolio, ranked #1403.

Bank of America first reported a position in ARWR in Q2 2013 and has held it in 51 quarters since. 436 funds tracked by Wall St. Rank hold ARWR as of Q1 2026.

Bank of America held 1,064,455 shares of Arrowhead Research worth $66.7M as of Q1 2026.
Bank of America bought 442,426 Arrowhead Research shares in Q1 2026, an estimated $28M.
Arrowhead Research made up ﹤0.01% of Bank of America's portfolio in Q1 2026, its #1403 holding.
Bank of America first reported a position in Arrowhead Research in Q2 2013 and has held it in 51 quarters since.
436 funds tracked by Wall St. Rank held Arrowhead Research as of Q1 2026.

Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.