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Horizon Investments’s Arrowhead Research ARWR Stock Holding History

Horizon Investments’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 		$130K Buy
1,595
+247
+18% +$18.2K ﹤0.01% 1080
2026
Q1 		$84.5K Sell
1,348
-9,350
-87% -$592K ﹤0.01% 1094
2025
Q4 		$710K Buy
+10,698
New +$524K 0.01% 734

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

Horizon Investments's ARWR Position: Q2 2026 in Review

Horizon Investments increased its Arrowhead Research (ARWR) stake by 18% in Q2 2026, buying an estimated $18.2K and bringing the position to 1,595 shares worth $130K. The position accounts for ﹤0.01% of the portfolio, ranked #1080.

Horizon Investments first reported a position in ARWR in Q4 2025 and has held it in 3 quarters since. The position peaked at $710K in Q4 2025. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • Horizon Investments held 1,595 shares of Arrowhead Research worth $130K as of Q2 2026.
  • Horizon Investments bought 247 Arrowhead Research shares in Q2 2026, an estimated $18.2K.
  • Arrowhead Research made up ﹤0.01% of Horizon Investments's portfolio in Q2 2026, its #1080 holding.
  • Horizon Investments first reported a position in Arrowhead Research in Q4 2025 and has held it in 3 quarters since.
  • Horizon Investments's Arrowhead Research position peaked at $710K in Q4 2025.
  • 500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Horizon Investments's 13F filing for Q2 2026, filed 13 Aug 2026.