Holocene Advisors’s Arrowhead Research ARWR Stock Holding History

Holocene Advisors’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	$90.2M	Buy	+1,106,177	New	+$81.7M	0.2%	134

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

Holocene Advisors's ARWR Position: Q2 2026 in Review

Holocene Advisors opened a new position in Arrowhead Research (ARWR) in Q2 2026: 1,106,177 shares worth $90.2M. The stake represents 0.2% of the portfolio and ranks #134 among its holdings.

500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

Holocene Advisors held 1,106,177 shares of Arrowhead Research worth $90.2M as of Q2 2026.
Arrowhead Research was a new Holocene Advisors position in Q2 2026.
Arrowhead Research made up 0.2% of Holocene Advisors's portfolio in Q2 2026, its #134 holding.
500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Holocene Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.