XT
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XTX Topco’s Arrowhead Research ARWR Stock Holding History

XTX Topco’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
2025
Q2 		– Sell
-10,421
Closed -$133K – 2331
2025
Q1 		$133K Buy
+10,421
New +$189K 0.01% 1797
2023
Q4 		– Sell
-19,707
Closed -$530K – 1572
2023
Q3 		$530K Buy
19,707
+12,983
+193% +$398K 0.09% 365
2023
Q2 		$240K Buy
+6,724
New +$232K 0.04% 886
2021
Q2 		– Sell
-6,013
Closed -$399K – 797
2021
Q1 		$399K Buy
+6,013
New +$467K 0.19% 165

Other funds holding ARWR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
SPC
Slate Path Capital New York $6.73B AUM 95.97% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

XTX Topco's ARWR Position: Q2 2025 in Review

XTX Topco sold out of Arrowhead Research (ARWR) in Q2 2025, closing a stake of 10,421 shares — an estimated $133K sold.

XTX Topco first reported a position in ARWR in Q1 2021 and held it in 4 quarters. The position peaked at $530K in Q3 2023. 282 funds tracked by Wall St. Rank hold ARWR as of Q2 2025.

  • XTX Topco reported no remaining Arrowhead Research position as of Q2 2025 after selling out during the quarter.
  • XTX Topco sold 10,421 Arrowhead Research shares in Q2 2025, an estimated $133K.
  • XTX Topco first reported a position in Arrowhead Research in Q1 2021 and held it in 4 quarters.
  • XTX Topco's Arrowhead Research position peaked at $530K in Q3 2023.
  • 282 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2025.

Based on XTX Topco's 13F filing for Q2 2025, filed 12 Aug 2025.