Northern Trust
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Northern Trust’s OmniAb OABI Stock Holding History

Northern Trust’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 		$1.38M Buy
880,895
+51,874
+6% +$93.6K ﹤0.01% 3163
2025
Q4 		$1.53M Buy
829,021
+10,555
+1% +$18.3K ﹤0.01% 3149
2025
Q3 		$1.31M Sell
818,466
-18,403
-2% -$33.6K ﹤0.01% 3267
2025
Q2 		$1.46M Buy
836,869
+9,743
+1% +$16.3K ﹤0.01% 3182
2025
Q1 		$1.99M Sell
827,126
-55,329
-6% -$181K ﹤0.01% 2928
2024
Q4 		$3.12M Buy
882,455
+45,169
+5% +$179K ﹤0.01% 2781
2024
Q3 		$3.54M Sell
837,286
-4,499
-0.5% -$19.5K ﹤0.01% 2682
2024
Q2 		$3.16M Sell
841,785
-28,847
-3% -$131K ﹤0.01% 2652
2024
Q1 		$4.72M Sell
870,632
-2,800
-0.3% -$16.1K ﹤0.01% 2497
2023
Q4 		$5.39M Sell
873,432
-10,871
-1% -$53.5K ﹤0.01% 2462
2023
Q3 		$4.59M Sell
884,303
-83,447
-9% -$445K ﹤0.01% 2496
2023
Q2 		$4.87M Buy
967,750
+96,458
+11% +$391K ﹤0.01% 2517
2023
Q1 		$3.21M Buy
871,292
+28,169
+3% +$106K ﹤0.01% 2719
2022
Q4 		$3.04M Buy
+843,123
New +$4.42M ﹤0.01% 2772

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

Northern Trust's OABI Position: Q1 2026 in Review

Northern Trust increased its OmniAb (OABI) stake by 6.3% in Q1 2026, buying an estimated $93.6K and bringing the position to 880,895 shares worth $1.38M. The position accounts for ﹤0.01% of the portfolio, ranked #3163.

Northern Trust first reported a position in OABI in Q4 2022 and has held it in 14 quarters since. The position peaked at $5.39M in Q4 2023. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

  • Northern Trust held 880,895 shares of OmniAb worth $1.38M as of Q1 2026.
  • Northern Trust bought 51,874 OmniAb shares in Q1 2026, an estimated $93.6K.
  • OmniAb made up ﹤0.01% of Northern Trust's portfolio in Q1 2026, its #3163 holding.
  • Northern Trust first reported a position in OmniAb in Q4 2022 and has held it in 14 quarters since.
  • Northern Trust's OmniAb position peaked at $5.39M in Q4 2023.
  • 128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.