OmniAb, Inc.
OABI- Exchange
- Nasdaq
- Industry
- Services-Commercial Physical & Biological Research
- SEC CIK
- 0001846253
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
13F holders, Q1 2025
Institutional positions in OmniAb, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 153
- −10 vs. Q4 2024
- Shares held
- 63.4M
- +42.7K (+0.1%) vs. Q4 2024
- Total value
- $152.0M
- −$71.9M (−32.1%) vs. Q4 2024
- New holders
- 16
- 43 more added
- Sold out
- 26
- 54 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OABI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 131 | $144.2M |
| Q1 2026 | 128 | $87.7M |
| Q4 2025 | 129 | $105.8M |
| Q3 2025 | 140 | $100.5M |
| Q2 2025 | 144 | $95.5M |
| Q1 2025 | 153 | $152.0M |
| Q4 2024 | 165 | $224.7M |
| Q3 2024 | 165 | $334.6M |
| Q2 2024 | 160 | $293.9M |
| Q1 2024 | 153 | $450.4M |
| Q4 2023 | 157 | $514.0M |
| Q3 2023 | 148 | $355.9M |
| Q2 2023 | 144 | $338.6M |
| Q1 2023 | 142 | $243.3M |
| Q4 2022 | 148 | $234.9M |
| Q3 2022 | 1 | $11.2M |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding OmniAb, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 70,957 | $170.3K | 0.00% | +8,098+12.9% | Added |
| Citigroup Inc | 71,560 | $171.7K | 0.00% | −6,850−8.7% | Reduced |
| Jane Street Group, LLC | 80,778 | $193.9K | 0.00% | +16,823+26.3% | Added |
| Invesco Ltd. | 93,701 | $224.9K | 0.00% | +48+0.1% | Added |
| Mirabella Financial Services LLP | 100,381 | $240.9K | 0.01% | +100,381 | New |
| Intech Investment Management LLC | 102,572 | $246.2K | 0.00% | +41,076+66.8% | Added |
| Barclays PLC | 105,613 | $253.5K | 0.00% | −58,702−35.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 108,111 | $259.5K | 0.00% | +108,111 | New |
| Northeast Financial Consultants Inc | 110,996 | $266.4K | 0.01% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 118,038 | $283.3K | 0.00% | +68,289+137.3% | Added |
| Alliancebernstein L.P. | 119,392 | $286.5K | 0.00% | −1,323−1.1% | Reduced |
| Gsa Capital Partners LLP | 125,452 | $301.0K | 0.03% | +78,553+167.5% | Added |
| ADAR1 Capital Management, LLC | 126,108 | $302.7K | 0.06% | −152,000−54.7% | Reduced |
| FMR LLC | 131,526 | $315.7K | 0.00% | −24,084−15.5% | Reduced |
| Rhumbline Advisers | 151,565 | $363.7K | 0.00% | −2,247−1.5% | Reduced |
| Cornerstone Capital, Inc. | 172,016 | $412.8K | 0.04% | 00.0% | Unchanged |
| American Century Companies Inc | 181,408 | $435.4K | 0.00% | +24,197+15.4% | Added |
| Citadel Advisors LLC | 194,024 | $465.7K | 0.00% | −243,946−55.7% | Reduced |
| Kent Lake PR LLC | 225,000 | $540.0K | 0.25% | −275,000−55.0% | Reduced |
| Nuveen, LLC | 227,801 | $546.7K | 0.00% | +227,801 | New |
| Goldman Sachs Group Inc | 243,669 | $584.8K | 0.00% | −304,866−55.6% | Reduced |
| TLS Advisors LLC | 250,185 | $600.0K | 1.35% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 258,142 | $619.5K | 0.00% | −1,029−0.4% | Reduced |
| UBS Group AG | 266,371 | $639.3K | 0.00% | −40,016−13.1% | Reduced |
| Tang Capital Management LLC | 300,000 | $720.0K | 0.04% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 377,929 | $907.0K | 0.03% | +2,929+0.8% | Added |
| First Sabrepoint Capital Management LP | 410,000 | $984.0K | 0.41% | −1,050,602−71.9% | Reduced |
| Deutsche Bank AG | 432,859 | $1.04M | 0.00% | −193,247−30.9% | Reduced |
| Isthmus Partners, LLC | 468,707 | $1.12M | 0.14% | +15,572+3.4% | Added |
| Morgan Stanley | 498,664 | $1.20M | 0.00% | +56,609+12.8% | Added |
| Bank of America Corp | 542,940 | $1.30M | 0.00% | −73,419−11.9% | Reduced |
| Towerview LLC | 580,000 | $1.39M | 1.00% | +30,000+5.5% | Added |
| JPMorgan Chase & Co | 618,437 | $1.48M | 0.00% | −383,360−38.3% | Reduced |
| Woodstock Corp | 742,700 | $1.78M | 0.18% | −59,878−7.5% | Reduced |
| Impax Asset Management Group plc | 761,387 | $1.83M | 0.01% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 810,978 | $1.95M | 0.00% | −8,730−1.1% | Reduced |
| Royce & Associates LP | 817,080 | $1.96M | 0.02% | +110,000+15.6% | Added |
| Northern Trust Corp | 827,126 | $1.99M | 0.00% | −55,329−6.3% | Reduced |
| Knott David M Jr | 982,336 | $2.36M | 1.11% | −112,169−10.2% | Reduced |
| Murchinson Ltd. | 1,007,810 | $2.42M | 0.42% | +7,810+0.8% | Added |
| Villere St Denis J & Co LLC | 1,437,944 | $3.45M | 0.33% | −28,126−1.9% | Reduced |
| State Street Corp | 1,921,283 | $4.61M | 0.00% | −153,527−7.4% | Reduced |
| Geode Capital Management, LLC | 2,461,050 | $5.91M | 0.00% | +107,608+4.6% | Added |
| Private Management Group Inc | 2,529,759 | $6.07M | 0.22% | +296,711+13.3% | Added |
| Rice Hall James & Associates, LLC | 2,580,780 | $6.19M | 0.36% | −68,227−2.6% | Reduced |
| Chicago Capital, LLC | 2,620,454 | $6.29M | 0.18% | −354,997−11.9% | Reduced |
| Rubric Capital Management LP | 2,850,588 | $6.84M | 0.12% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 3,131,718 | $7.52M | 0.00% | +106,044+3.5% | Added |
| Whitefort Capital Management, LP | 3,914,896 | $9.40M | 4.42% | +3,914,896 | New |
| Macquarie Group Ltd | 4,422,738 | $10.6M | 0.01% | +122,071+2.8% | Added |
| Vanguard Group Inc | 5,179,306 | $12.4M | 0.00% | +123,996+2.5% | Added |
| BlackRock, Inc. | 7,058,742 | $16.9M | 0.00% | −120,278−1.7% | Reduced |
| Janus Henderson Group PLC | 8,058,228 | $19.5M | 0.01% | +97,907+1.2% | Added |
| Proequities, Inc. | 0 | $0 | 0.00% | −352−100.0% | Sold out |
| Kornitzer Capital Management Inc | 0 | $0 | 0.00% | −898,845−100.0% | Sold out |
| Orchard Capital Managment, LLC | 0 | $0 | 0.00% | −218,765−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −162,703−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −124,021−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −51,159−100.0% | Sold out |
| Arizona State Retirement System | 0 | $0 | 0.00% | −24,005−100.0% | Sold out |
| Palumbo Wealth Management LLC | 0 | $0 | 0.00% | −21,204−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −21,053−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −17,284−100.0% | Sold out |
| KLP Kapitalforvaltning AS | 0 | $0 | 0.00% | −13,720−100.0% | Sold out |
| Rangeley Capital, LLC | 0 | $0 | 0.00% | −11,500−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −11,412−100.0% | Sold out |
| Bleakley Financial Group, LLC | 0 | $0 | 0.00% | −11,229−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −10,292−100.0% | Sold out |
| HighMark Wealth Management LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −3,575−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −997−100.0% | Sold out |
| FPC Investment Advisory, Inc. | 0 | $0 | 0.00% | −803−100.0% | Sold out |
| Huntington National Bank | 0 | $0 | 0.00% | −687−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −232−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −122−100.0% | Sold out |
| LGT Financial Advisors LLC | 0 | $0 | 0.00% | −107−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Jones Financial Companies LLLP | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Lake Street Advisors Group, LLC | – | – | – | – | Not filed |