Bayesian Capital Management’s Arrowhead Research ARWR Stock Holding History

Bayesian Capital 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	$269K	Buy	+3,300	New	+$244K	0.17%	165
2025 Q2	–	Sell	-13,000	Closed	-$166K	–	545
2025 Q1	$166K	Buy	+13,000	New	+$236K	0.03%	511
2024 Q2	–	Sell	-25,303	Closed	-$724K	–	721
2024 Q1	$724K	Buy	+25,303	New	+$809K	0.07%	356
2023 Q2	–	Sell	-32,682	Closed	-$830K	–	786
2023 Q1	$830K	Buy	+32,682	New	+$1.03M	0.1%	270
2020 Q4	–	Sell	-6,966	Closed	-$300K	–	453
2020 Q3	$300K	Buy	+6,966	New	+$301K	0.07%	344
2020 Q2	–	Sell	-11,334	Closed	-$326K	–	525
2020 Q1	$326K	Buy	11,334 +6,500	+134%	+$262K	0.07%	421
2019 Q4	$307K	Buy	+4,834	New	+$240K	0.05%	421

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

Bayesian Capital Management's ARWR Position: Q2 2026 in Review

Bayesian Capital Management opened a new position in Arrowhead Research (ARWR) in Q2 2026: 3,300 shares worth $269K. The stake represents 0.17% of the portfolio and ranks #165 among its holdings. This is a return to the name: Bayesian Capital Management previously reported a position in ARWR as recently as Q1 2025.

Bayesian Capital Management first reported a position in ARWR in Q4 2019 and has held it in 7 quarters since. The position peaked at $830K in Q1 2023. 501 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Bayesian Capital Management held 3,300 shares of Arrowhead Research worth $269K as of Q2 2026.
Arrowhead Research was a new Bayesian Capital Management position in Q2 2026.
Arrowhead Research made up 0.17% of Bayesian Capital Management's portfolio in Q2 2026, its #165 holding.
Bayesian Capital Management first reported a position in Arrowhead Research in Q4 2019 and has held it in 7 quarters since.
Bayesian Capital Management's Arrowhead Research position peaked at $830K in Q1 2023.
501 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

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