Millennium Management
OABI icon

Millennium Management’s OmniAb OABI Stock Holding History

Millennium Management’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 		$630K Sell
523,918
-149,477
-22% -$270K ﹤0.01% 4653
2025
Q4 		$1.02M Buy
673,395
+387,594
+136% +$674K ﹤0.01% 4478
2025
Q3 		$260K Sell
285,801
-364,515
-56% -$666K ﹤0.01% 5414
2025
Q2 		$917K Buy
650,316
+518,645
+394% +$868K ﹤0.01% 4473
2025
Q1 		$23.6K Sell
131,671
-55,074
-29% -$180K ﹤0.01% 5614
2024
Q4 		$240K Buy
186,745
+61,993
+50% +$245K ﹤0.01% 5203
2024
Q3 		$30.9K Sell
124,752
-905,696
-88% -$3.92M ﹤0.01% 5749
2024
Q2 		$3.42M Sell
1,030,448
-1,881,982
-65% -$8.58M ﹤0.01% 3070
2024
Q1 		$15.2M Buy
2,912,430
+636,012
+28% +$3.66M 0.01% 1784
2023
Q4 		$13.3M Sell
2,276,418
-1,522,828
-40% -$7.49M 0.01% 1921
2023
Q3 		$19.1M Sell
3,799,246
-536,833
-12% -$2.87M 0.01% 1470
2023
Q2 		$21.2M Sell
4,336,079
-1,133,499
-21% -$4.6M 0.01% 1332
2023
Q1 		$19.7M Buy
5,469,578
+346,180
+7% +$1.31M 0.01% 1344
2022
Q4 		$18.4M Buy
5,123,398
+4,545,115
+786% +$23.9M 0.01% 1523
2022
Q3 		$5.9M Sell
578,283
-245,566
-30% -$2.49M ﹤0.01% 2731
2022
Q2 		$8.3M Sell
823,849
-702,106
-46% -$7.07M 0.01% 2265
2022
Q1 		$15.4M Buy
1,525,955
+506,412
+50% +$5.06M 0.01% 1657
2021
Q4 		$10.2M Buy
+1,019,543
New +$10.2M 0.01% 2126

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

Millennium Management's OABI Position: Q1 2026 in Review

Millennium Management reduced its OmniAb (OABI) stake by 22% in Q1 2026, selling an estimated $270K and leaving 523,918 shares worth $630K. The position accounts for ﹤0.01% of the portfolio, ranked #4653.

Millennium Management first reported a position in OABI in Q4 2021 and has held it in 18 quarters since. The position peaked at $21.2M in Q2 2023. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

  • Millennium Management held 523,918 shares of OmniAb worth $630K as of Q1 2026.
  • Millennium Management sold 149,477 OmniAb shares in Q1 2026, an estimated $270K.
  • OmniAb made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #4653 holding.
  • Millennium Management first reported a position in OmniAb in Q4 2021 and has held it in 18 quarters since.
  • Millennium Management's OmniAb position peaked at $21.2M in Q2 2023.
  • 128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.