Optiver Holding’s Arrowhead Research ARWR Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$25.6K Buy
408
+186
+84% +$11.8K ﹤0.01% 1058
2025
Q4
$14.7K Sell
222
-400
-64% -$19.6K ﹤0.01% 1083
2025
Q3
$21.5K Buy
+622
New +$13.7K ﹤0.01% 950

Other funds holding ARWR

Optiver Holding's ARWR Position: Q1 2026 in Review

Optiver Holding increased its Arrowhead Research (ARWR) stake by 84% in Q1 2026, buying an estimated $11.8K and bringing the position to 408 shares worth $25.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1058.

Optiver Holding first reported a position in ARWR in Q3 2025 and has held it in 3 quarters since. 436 funds tracked by Wall St. Rank hold ARWR as of Q1 2026.

  • Optiver Holding held 408 shares of Arrowhead Research worth $25.6K as of Q1 2026.
  • Optiver Holding bought 186 Arrowhead Research shares in Q1 2026, an estimated $11.8K.
  • Arrowhead Research made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1058 holding.
  • Optiver Holding first reported a position in Arrowhead Research in Q3 2025 and has held it in 3 quarters since.
  • 436 funds tracked by Wall St. Rank held Arrowhead Research as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.