Ken Fisher
ARWR icon

Ken Fisher’s Arrowhead Research ARWR Stock Holding History

Ken Fisher’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 		$78.1M Sell
957,691
-155,877
-14% -$11.5M 0.02% 195
2026
Q1 		$69.8M Sell
1,113,568
-198,159
-15% -$12.5M 0.02% 194
2025
Q4 		$87.1M Buy
1,311,727
+257,933
+24% +$12.6M 0.03% 181
2025
Q3 		$36.3M Buy
1,053,794
+602,139
+133% +$13.2M 0.01% 260
2025
Q2 		$7.14M Sell
451,655
-31,598
-7% -$453K ﹤0.01% 437
2025
Q1 		$6.16M Buy
483,253
+340,314
+238% +$6.19M ﹤0.01% 467
2024
Q4 		$2.69M Buy
142,939
+20,679
+17% +$426K ﹤0.01% 555
2024
Q3 		$2.37M Buy
122,260
+110,516
+941% +$2.7M ﹤0.01% 559
2024
Q2 		$305K Buy
+11,744
New +$289K ﹤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

Ken Fisher's ARWR Position: Q2 2026 in Review

Ken Fisher reduced its Arrowhead Research (ARWR) stake by 14% in Q2 2026, selling an estimated $11.5M and leaving 957,691 shares worth $78.1M. The position accounts for 0.02% of the portfolio, ranked #195.

Ken Fisher first reported a position in ARWR in Q2 2024 and has held it in 9 quarters since. The position peaked at $87.1M in Q4 2025. 501 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • Ken Fisher held 957,691 shares of Arrowhead Research worth $78.1M as of Q2 2026.
  • Ken Fisher sold 155,877 Arrowhead Research shares in Q2 2026, an estimated $11.5M.
  • Arrowhead Research made up 0.02% of Ken Fisher's portfolio in Q2 2026, its #195 holding.
  • Ken Fisher first reported a position in Arrowhead Research in Q2 2024 and has held it in 9 quarters since.
  • Ken Fisher's Arrowhead Research position peaked at $87.1M in Q4 2025.
  • 501 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Fisher Asset Management's 13F filing for Q2 2026, filed 4 Aug 2026.