SEI Investments
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SEI Investments’s OmniAb OABI Stock Holding History

SEI Investments’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
Q2 		$131K Sell
53,390
-7,188
-12% -$14.3K ﹤0.01% 3141
2026
Q1 		$95.1K Buy
60,578
+17,718
+41% +$32K ﹤0.01% 3104
2025
Q4 		$79.3K Sell
42,860
-38,185
-47% -$66.4K ﹤0.01% 3038
2025
Q3 		$130K Buy
81,045
+19,919
+33% +$36.4K ﹤0.01% 2686
2025
Q2 		$106K Buy
61,126
+40,724
+200% +$68.1K ﹤0.01% 2680
2025
Q1 		$49K Sell
20,402
-23,084
-53% -$75.5K ﹤0.01% 2678
2024
Q4 		$154K Buy
43,486
+606
+1% +$2.4K ﹤0.01% 2522
2024
Q3 		$181K Buy
42,880
+13,856
+48% +$59.9K ﹤0.01% 2493
2024
Q2 		$109K Buy
29,024
+2,888
+11% +$13.2K ﹤0.01% 2522
2024
Q1 		$142K Buy
26,136
+1,330
+5% +$7.66K ﹤0.01% 2472
2023
Q4 		$153K Buy
24,806
+2,641
+12% +$13K ﹤0.01% 2473
2023
Q3 		$115K Buy
22,165
+3,034
+16% +$16.2K ﹤0.01% 2498
2023
Q2 		$96.3K Sell
19,131
-3,859
-17% -$15.6K ﹤0.01% 2570
2023
Q1 		$84.6K Buy
22,990
+6,014
+35% +$22.7K ﹤0.01% 2591
2022
Q4 		$61.1K Buy
+16,976
New +$89.1K ﹤0.01% 2478

Other funds holding OABI

WCM
Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $85.4B AUM 91.09% 1-Year Est. Return
CCM
Cadian Capital Management New York $1.32B AUM 4.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
RHJA
Rice Hall James & Associates San Diego, California $2.05B AUM 43.16% 1-Year Est. Return
PMG
Private Management Group Irvine, California $3.8B AUM 23.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

SEI Investments's OABI Position: Q2 2026 in Review

SEI Investments reduced its OmniAb (OABI) stake by 12% in Q2 2026, selling an estimated $14.3K and leaving 53,390 shares worth $131K. The position accounts for ﹤0.01% of the portfolio, ranked #3141.

SEI Investments first reported a position in OABI in Q4 2022 and has held it in 15 quarters since. The position peaked at $181K in Q3 2024. 131 funds tracked by Wall St. Rank hold OABI as of Q2 2026.

  • SEI Investments held 53,390 shares of OmniAb worth $131K as of Q2 2026.
  • SEI Investments sold 7,188 OmniAb shares in Q2 2026, an estimated $14.3K.
  • OmniAb made up ﹤0.01% of SEI Investments's portfolio in Q2 2026, its #3141 holding.
  • SEI Investments first reported a position in OmniAb in Q4 2022 and has held it in 15 quarters since.
  • SEI Investments's OmniAb position peaked at $181K in Q3 2024.
  • 131 funds tracked by Wall St. Rank held OmniAb as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.