D.E. Shaw & Co’s OmniAb OABI Stock Holding History

D.E. Shaw & Co’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	$1.38M	Buy	559,404 +179,150	+47%	+$356K	﹤0.01%	3513
2026 Q1	$597K	Sell	380,254 -2,898	-0.8%	-$5.23K	﹤0.01%	3760
2025 Q4	$709K	Buy	383,152 +196,871	+106%	+$342K	﹤0.01%	3743
2025 Q3	$298K	Buy	+186,281	New	+$340K	﹤0.01%	4117
2024 Q3	–	Sell	-42,963	Closed	-$161K	–	4772
2024 Q2	$161K	Sell	42,963 -77,704	-64%	-$354K	﹤0.01%	4114
2024 Q1	$654K	Sell	120,667 -127,445	-51%	-$734K	﹤0.01%	3352
2023 Q4	$1.53M	Buy	248,112 +42,325	+21%	+$208K	﹤0.01%	2861
2023 Q3	$1.07M	Buy	205,787 +111,294	+118%	+$594K	﹤0.01%	3018
2023 Q2	$475K	Buy	+94,493	New	+$383K	﹤0.01%	3443
2022 Q4	–	Sell	-702,724	Closed	-$7.17M	–	5032
2022 Q3	$7.17M	Buy	702,724 +250,000	+55%	+$2.54M	0.01%	1693
2022 Q2	$4.58M	Hold	452,724	–	–	0.01%	2234
2022 Q1	$4.58M	Buy	452,724 +119,238	+36%	+$1.19M	﹤0.01%	2418
2021 Q4	$3.32M	Buy	+333,486	New	+$3.33M	﹤0.01%	2835

Other funds holding OABI

WCM

Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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 Malvern, Pennsylvania $4.68T AUM

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 Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

D.E. Shaw & Co's OABI Position: Q2 2026 in Review

D.E. Shaw & Co increased its OmniAb (OABI) stake by 47% in Q2 2026, buying an estimated $356K and bringing the position to 559,404 shares worth $1.38M. The position accounts for ﹤0.01% of the portfolio, ranked #3513.

D.E. Shaw & Co first reported a position in OABI in Q4 2021 and has held it in 13 quarters since. The position peaked at $7.17M in Q3 2022. 131 funds tracked by Wall St. Rank hold OABI as of Q2 2026.

D.E. Shaw & Co held 559,404 shares of OmniAb worth $1.38M as of Q2 2026.
D.E. Shaw & Co bought 179,150 OmniAb shares in Q2 2026, an estimated $356K.
OmniAb made up ﹤0.01% of D.E. Shaw & Co's portfolio in Q2 2026, its #3513 holding.
D.E. Shaw & Co first reported a position in OmniAb in Q4 2021 and has held it in 13 quarters since.
D.E. Shaw & Co's OmniAb position peaked at $7.17M in Q3 2022.
131 funds tracked by Wall St. Rank held OmniAb as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.