Renaissance Technologies’s OmniAb OABI Stock Holding History

Renaissance Technologies’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	$1.48M	Buy	600,350 +330,750	+123%	+$657K	﹤0.01%	2132
2026 Q1	$423K	Buy	269,600 +26,900	+11%	+$48.5K	﹤0.01%	2667
2025 Q4	$449K	Sell	242,700 -280,754	-54%	-$488K	﹤0.01%	2619
2025 Q3	$838K	Sell	523,454 -184,096	-26%	-$336K	﹤0.01%	2575
2025 Q2	$1.23M	Buy	707,550 +680,950	+2,560%	+$1.14M	﹤0.01%	2397
2025 Q1	$63.8K	Buy	+26,600	New	+$87K	﹤0.01%	3259
2024 Q1	–	Sell	-40,959	Closed	-$253K	–	3957
2023 Q4	$253K	Sell	40,959 -39,000	-49%	-$192K	﹤0.01%	3051
2023 Q3	$415K	Sell	79,959 -59,900	-43%	-$320K	﹤0.01%	2797
2023 Q2	$703K	Buy	+139,859	New	+$567K	﹤0.01%	2693

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

Renaissance Technologies's OABI Position: Q2 2026 in Review

Renaissance Technologies increased its OmniAb (OABI) stake by 123% in Q2 2026, buying an estimated $657K and bringing the position to 600,350 shares worth $1.48M. The position accounts for ﹤0.01% of the portfolio, ranked #2132.

Renaissance Technologies first reported a position in OABI in Q2 2023 and has held it in 9 quarters since. 131 funds tracked by Wall St. Rank hold OABI as of Q2 2026.

Renaissance Technologies held 600,350 shares of OmniAb worth $1.48M as of Q2 2026.
Renaissance Technologies bought 330,750 OmniAb shares in Q2 2026, an estimated $657K.
OmniAb made up ﹤0.01% of Renaissance Technologies's portfolio in Q2 2026, its #2132 holding.
Renaissance Technologies first reported a position in OmniAb in Q2 2023 and has held it in 9 quarters since.
131 funds tracked by Wall St. Rank held OmniAb as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.