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

Q4 2023 vs. Q3 2023

How the institutions holding OmniAb, Inc. changed between Q3 2023 and Q4 2023.

All holders in Q4 2023 All holders in Q3 2023

13F holders of OABI: Q3 2023 compared with Q4 2023
Measure	Q3 2023	Of which not filed for Q4 2023	Q4 2023	Change
Holders	148	1	157	+10
Shares	68.7M	25.5K	83.8M	+15.1M (+22.0%)
Value	$355.9M	$132.3K	$514.0M	+$158.2M (+44.5%)

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (26)

Institutions that held OmniAb, Inc. at the end of Q4 2023 but not at the end of Q3 2023.

Institutions new to OABI in Q4 2023
Institution	Shares	Value	% of portfolio
Avista Capital Holdings, L.P.	15,817,934	$95.4M	89.09%
ADAR1 Capital Management, LLC	478,171	$2.95M	1.32%
Allspring Global Investments Holdings, LLC	88,452	$545.7K	0.00%
Susquehanna International Group, LLP	44,703	$275.8K	0.00%
Franklin Resources Inc	43,106	$266.0K	0.00%
HRT Financial LP	20,883	$128.0K	0.00%
Jane Street Group, LLC	17,294	$106.7K	0.00%
Clear Street Markets LLC	16,260	$100.0K	0.04%
Virtu Financial LLC	16,232	$100.0K	0.01%
China Universal Asset Management Co., Ltd.	13,450	$83.0K	0.02%
Squarepoint Ops LLC	12,239	$75.5K	0.00%
Cape Investment Advisory, Inc.	10,385	$64.1K	0.03%
Axq Capital, LP	10,300	$63.6K	0.02%
Federated Hermes, Inc.	6,092	$37.6K	0.00%
Advisory Services Network, LLC	548	$3.38K	0.00%
Daiwa Securities Group Inc.	475	$3.00K	0.00%
DAGCO, Inc.	411	$2.54K	0.00%
Dynamic Wealth Strategies, LLC	411	$2.54K	0.00%
Garner Asset Management Corp	327	$1.73K	0.00%
GAMMA Investing LLC	232	$1.35K	0.00%
Fortitude Family Office, LLC	212	$1.31K	0.00%
Scarborough Advisors, LLC	161	$993	0.00%
Larson Financial Group LLC	98	$605	0.00%
Principal Securities, Inc.	58	$358	0.00%
Tidemark, LLC	19	$117	0.00%
Farther Finance Advisors, LLC	8	$49	0.00%

Sold out (16)

Institutions that held OmniAb, Inc. at the end of Q3 2023 and filed for Q4 2023 without it.

Institutions that sold out of OABI in Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
1492 Capital Management LLC	438,810	$2.28M
Graham Capital Management, L.P.	35,013	$181.7K
Nebula Research & Development LLC	34,942	$181.3K
Advisors Asset Management, Inc.	33,906	$176.0K
Verition Fund Management LLC	21,470	$111.4K
Boothbay Fund Management, LLC	15,000	$77.8K
Two Sigma Advisers, LP	11,050	$57.4K
Mercer Global Advisors Inc	10,968	$57.0K
Ameritas Advisory Services, LLC	11,147	$55.6K
State of Wisconsin Investment Board	10,570	$54.9K
Financial Advocates Investment Management	10,105	$52.4K
Steward Partners Investment Advisory, LLC	490	$2.54K
GW&K Investment Management, LLC	195	$1.00K
Toronto Dominion Bank	10	$52
Tucker Asset Management LLC	9	$47
Gradient Investments LLC	8	$42

Not filed for Q4 2023 yet (1)

Institutions that held OmniAb, Inc. at the end of Q3 2023 and haven't filed a 13F for Q4 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding OABI in Q3 2023 that haven't filed for Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
First Republic Investment Management, Inc.	25,489	$132.3K