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
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 $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

SEI Investments's OABI Position: Q1 2026 in Review

SEI Investments increased its OmniAb (OABI) stake by 41% in Q1 2026, buying an estimated $32K and bringing the position to 60,578 shares worth $95.1K. The position accounts for ﹤0.01% of the portfolio, ranked #3104.

SEI Investments first reported a position in OABI in Q4 2022 and has held it in 14 quarters since. The position peaked at $181K in Q3 2024. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

  • SEI Investments held 60,578 shares of OmniAb worth $95.1K as of Q1 2026.
  • SEI Investments bought 17,718 OmniAb shares in Q1 2026, an estimated $32K.
  • OmniAb made up ﹤0.01% of SEI Investments's portfolio in Q1 2026, its #3104 holding.
  • SEI Investments first reported a position in OmniAb in Q4 2022 and has held it in 14 quarters since.
  • SEI Investments's OmniAb position peaked at $181K in Q3 2024.
  • 128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.