Jane Street
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Jane Street’s OmniAb OABI Stock Holding History

Jane Street’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 		$43.3K Sell
27,551
-107,827
-80% -$195K ﹤0.01% 11020
2025
Q4 		$250K Sell
135,378
-53,704
-28% -$93.3K ﹤0.01% 9233
2025
Q3 		$303K Buy
189,082
+35,346
+23% +$64.6K ﹤0.01% 8881
2025
Q2 		$268K Buy
153,736
+72,958
+90% +$122K ﹤0.01% 8060
2025
Q1 		$194K Buy
80,778
+16,823
+26% +$55K ﹤0.01% 8476
2024
Q4 		$226K Sell
63,955
-72,404
-53% -$286K ﹤0.01% 8202
2024
Q3 		$577K Sell
136,359
-36,694
-21% -$159K ﹤0.01% 6941
2024
Q2 		$649K Buy
173,053
+151,675
+709% +$691K ﹤0.01% 6593
2024
Q1 		$116K Buy
21,378
+4,084
+24% +$23.5K ﹤0.01% 8474
2023
Q4 		$107K Buy
+17,294
New +$85K ﹤0.01% 8551
2023
Q2 		– Sell
-80,164
Closed -$295K – 9296
2023
Q1 		$295K Sell
80,164
-181,946
-69% -$687K ﹤0.01% 7230
2022
Q4 		$944K Buy
+262,110
New +$1.38M ﹤0.01% 5073

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

Jane Street's OABI Position: Q1 2026 in Review

Jane Street reduced its OmniAb (OABI) stake by 80% in Q1 2026, selling an estimated $195K and leaving 27,551 shares worth $43.3K. The position accounts for ﹤0.01% of the portfolio, ranked #11020.

Jane Street first reported a position in OABI in Q4 2022 and has held it in 12 quarters since. The position peaked at $944K in Q4 2022. 128 funds tracked by Wall St. Rank hold OABI as of Q1 2026.

  • Jane Street held 27,551 shares of OmniAb worth $43.3K as of Q1 2026.
  • Jane Street sold 107,827 OmniAb shares in Q1 2026, an estimated $195K.
  • OmniAb made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #11020 holding.
  • Jane Street first reported a position in OmniAb in Q4 2022 and has held it in 12 quarters since.
  • Jane Street's OmniAb position peaked at $944K in Q4 2022.
  • 128 funds tracked by Wall St. Rank held OmniAb as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.