OmniAb, Inc.

OABI

Exchange: Nasdaq
Industry: Services-Commercial Physical & Biological Research
SEC CIK: 0001846253

SEC filings (opens in a new tab)

No open-market purchases or sales by OmniAb, Inc. insiders were filed in the last 90 days; 131 institutions reported holding it in 13F filings for Q2 2026, worth $144.2M in total; no superinvestor holds it.

Other share classesOABIW

Q2 2025 vs. Q1 2025

How the institutions holding OmniAb, Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of OABI: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Q2 2025	Change
Holders	153	144	−9
Shares	63.4M	55.0M	−8.38M (−13.2%)
Value	$152.0M	$95.5M	−$56.5M (−37.2%)

New holders (25)

Institutions that held OmniAb, Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to OABI in Q2 2025
Institution	Shares	Value	% of portfolio
Jacobs Levy Equity Management, Inc	1,105,524	$1.92M	0.01%
Marshall Wace, LLP	359,665	$625.8K	0.00%
Two Sigma Investments, LP	231,688	$403.1K	0.00%
Two Sigma Advisers, LP	107,930	$187.8K	0.00%
Public Employees Retirement System of Ohio	96,361	$167.7K	0.00%
Cubist Systematic Strategies, LLC	72,145	$125.5K	0.00%
Bridgeway Capital Management, LLC	53,900	$93.8K	0.00%
Brevan Howard Capital Management LP	53,779	$93.6K	0.00%
JustInvest LLC	45,165	$78.6K	0.00%
Point72 Asia (Singapore) Pte. Ltd.	41,638	$72.5K	0.01%
CI Private Wealth, LLC	30,253	$52.6K	0.00%
US Bancorp	20,794	$36.2K	0.00%
Dynamic Technology Lab Private Ltd	12,557	$22.0K	0.00%
Prudential Financial Inc	12,543	$21.8K	0.00%
Colony Group, LLC	12,342	$21.5K	0.00%
Quadrature Capital Ltd	12,258	$21.3K	0.00%
RSM US Wealth Management LLC	11,791	$20.5K	0.00%
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	11,151	$19.4K	0.00%
Raymond James Financial Inc	7,027	$12.2K	0.00%
Caitong International Asset Management Co., Ltd	3,707	$6.45K	0.00%
Point72 (DIFC) Ltd	2,741	$4.77K	0.00%
EverSource Wealth Advisors, LLC	1,125	$1.96K	0.00%
Fortitude Family Office, LLC	466	$811	0.00%
Scarborough Advisors, LLC	161	$280	0.00%
National Bank of Canada	42	$73	0.00%

Sold out (34)

Institutions that held OmniAb, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of OABI in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Janus Henderson Group PLC	8,058,228	$19.5M
Macquarie Group Ltd	4,422,738	$10.6M
Rubric Capital Management LP	2,850,588	$6.84M
Chicago Capital, LLC	2,620,454	$6.29M
Villere St Denis J & Co LLC	1,437,944	$3.45M
Knott David M Jr	982,336	$2.36M
Impax Asset Management Group plc	761,387	$1.83M
First Sabrepoint Capital Management LP	410,000	$984.0K
American Century Companies Inc	181,408	$435.4K
Universal- Beteiligungs- und Servicegesellschaft mbH	108,111	$259.5K
Corebridge Financial, Inc.	46,712	$112.1K
Gallagher Fiduciary Advisors, LLC	43,696	$104.9K
Atria Investments LLC	43,563	$104.6K
Henshaw Capital LLC	37,507	$90.0K
HRT Financial LP	34,647	$83.0K
Mesirow Financial Investment Management, Inc.	30,764	$59.4K
Sherbrooke Park Advisers LLC	20,388	$48.9K
Captrust Financial Advisors	16,837	$40.4K
PDT Partners, LLC	14,709	$35.3K
Public Employees Retirement Association of Colorado	14,264	$34.0K
ExodusPoint Capital Management, LP	14,315	$34.0K
HSBC Holdings PLC	11,020	$26.3K
Federated Hermes, Inc.	4,157	$9.98K
Lazard Asset Management LLC	3,693	$8.00K
Rise Advisors, LLC	1,725	$4.14K
Northwestern Mutual Wealth Management Co	1,141	$2.74K
Coldstream Capital Management Inc	474	$1.14K
Cornerstone Planning Group LLC	249	$461
Salem Investment Counselors Inc	60	$144
IFP Advisors, Inc	0	$142
True Wealth Design, LLC	42	$101
Rothschild Investment LLC	40	$96
Mather Group, LLC.	21	$50
Parkworth Wealth Management, Inc.	4	$10