XT
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XTX Topco’s OmniAb OABI Stock Holding History

XTX Topco’s Portfolio OABI Stock Details OABI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$70.1K Buy
44,659
+32,637
+271% +$58.9K ﹤0.01% 3224
2025
Q4 		$22.2K Buy
+12,022
New +$20.9K ﹤0.01% 3033
2025
Q3 		– Sell
-137,171
Closed -$239K – 3054
2025
Q2 		$239K Buy
137,171
+83,687
+156% +$140K 0.01% 1584
2025
Q1 		$128K Buy
53,484
+1,694
+3% +$5.54K 0.01% 1812
2024
Q4 		$183K Buy
+51,790
New +$205K 0.02% 1587

Other funds holding OABI

WCM
Whitefort Capital Management New York $339M AUM 52.48% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CCM
Cadian Capital Management New York $821M AUM 14.36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
RHJA
Rice Hall James & Associates San Diego, California $1.8B AUM 36.16% 1-Year Est. Return
PMG
Private Management Group Irvine, California $3.47B AUM 13.39% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
TL
TowerView LLC New York $155M AUM 30.14% 1-Year Est. Return

XTX Topco's OABI Position: Q1 2026 in Review

XTX Topco increased its OmniAb (OABI) stake by 271% in Q1 2026, buying an estimated $58.9K and bringing the position to 44,659 shares worth $70.1K. The position accounts for ﹤0.01% of the portfolio, ranked #3224.

XTX Topco first reported a position in OABI in Q4 2024 and has held it in 5 quarters since. The position peaked at $239K in Q2 2025. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

  • XTX Topco held 44,659 shares of OmniAb worth $70.1K as of Q1 2026.
  • XTX Topco bought 32,637 OmniAb shares in Q1 2026, an estimated $58.9K.
  • OmniAb made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #3224 holding.
  • XTX Topco first reported a position in OmniAb in Q4 2024 and has held it in 5 quarters since.
  • XTX Topco's OmniAb position peaked at $239K in Q2 2025.
  • 128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.