Arrowstreet Capital
ARWR icon

Arrowstreet Capital’s Arrowhead Research ARWR Stock Holding History

Arrowstreet Capital’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 		$17.8M Sell
218,133
-368,992
-63% -$27.3M 0.01% 902
2026
Q1 		$36.8M Sell
587,125
-1,500,828
-72% -$95M 0.02% 577
2025
Q4 		$139M Buy
2,087,953
+6,264
+0.3% +$307K 0.08% 236
2025
Q3 		$71.8M Buy
2,081,689
+2,017,489
+3,143% +$44.4M 0.05% 369
2025
Q2 		$1.01M Buy
+64,200
New +$921K ﹤0.01% 1606
2020
Q1 		– Sell
-470,679
Closed -$29.9M – 1857
2019
Q4 		$29.9M Buy
+470,679
New +$23.4M 0.07% 286
2019
Q2 		– Sell
-215,536
Closed -$3.96M – 1380
2019
Q1 		$3.96M Buy
+215,536
New +$3.56M 0.01% 876

Other funds holding ARWR

BlackRock
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
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
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

Arrowstreet Capital's ARWR Position: Q2 2026 in Review

Arrowstreet Capital reduced its Arrowhead Research (ARWR) stake by 63% in Q2 2026, selling an estimated $27.3M and leaving 218,133 shares worth $17.8M. The position accounts for 0.01% of the portfolio, ranked #902.

Arrowstreet Capital first reported a position in ARWR in Q1 2019 and has held it in 7 quarters since. The position peaked at $139M in Q4 2025. 501 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • Arrowstreet Capital held 218,133 shares of Arrowhead Research worth $17.8M as of Q2 2026.
  • Arrowstreet Capital sold 368,992 Arrowhead Research shares in Q2 2026, an estimated $27.3M.
  • Arrowhead Research made up 0.01% of Arrowstreet Capital's portfolio in Q2 2026, its #902 holding.
  • Arrowstreet Capital first reported a position in Arrowhead Research in Q1 2019 and has held it in 7 quarters since.
  • Arrowstreet Capital's Arrowhead Research position peaked at $139M in Q4 2025.
  • 501 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.