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, Q4 2024
Institutional positions in OmniAb, Inc. as of Dec 31, 2024. 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
- 165
- +1 vs. Q3 2024
- Shares held
- 63.6M
- −404.9K (−0.6%) vs. Q3 2024
- Total value
- $224.7M
- −$45.5M (−16.8%) vs. Q3 2024
- New holders
- 20
- 50 more added
- Sold out
- 19
- 46 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding OmniAb, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Blair William & Co | 45,171 | $159.9K | 0.00% | −1,960−4.2% | Reduced |
| Corebridge Financial, Inc. | 45,882 | $162.4K | 0.00% | −3,463−7.0% | Reduced |
| Gsa Capital Partners LLP | 46,899 | $166.0K | 0.01% | −44,538−48.7% | Reduced |
| MetLife Investment Management | 48,425 | $171.4K | 0.00% | −7,251−13.0% | Reduced |
| Susquehanna International Group, LLP | 49,749 | $176.1K | 0.00% | +31,121+167.1% | Added |
| Balyasny Asset Management LLC | 51,159 | $181.1K | 0.00% | +51,159 | New |
| XTX Topco Ltd | 51,790 | $183.3K | 0.02% | +51,790 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 52,797 | $186.9K | 0.00% | +2,280+4.5% | Added |
| PDT Partners, LLC | 56,247 | $199.1K | 0.02% | +27,236+93.9% | Added |
| CIBC Private Wealth Group, LLC | 59,584 | $212.7K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 61,496 | $217.7K | 0.00% | +45,059+274.1% | Added |
| Wells Fargo & Company | 62,859 | $222.5K | 0.00% | +12,278+24.3% | Added |
| Jane Street Group, LLC | 63,955 | $226.4K | 0.00% | −72,404−53.1% | Reduced |
| Millennium Management LLC | 186,745 | $239.9K | 0.00% | +61,993+49.7% | Added |
| Legal & General Group Plc | 75,691 | $267.9K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 77,953 | $276.0K | 0.00% | −5,724−6.8% | Reduced |
| Citigroup Inc | 78,410 | $277.6K | 0.00% | +8,406+12.0% | Added |
| Invesco Ltd. | 93,653 | $331.5K | 0.00% | +2,997+3.3% | Added |
| Northeast Financial Consultants Inc | 110,996 | $392.9K | 0.02% | +110,996 | New |
| Alliancebernstein L.P. | 120,715 | $427.3K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 124,021 | $439.0K | 0.00% | −4,181−3.3% | Reduced |
| Rhumbline Advisers | 153,812 | $544.5K | 0.00% | −19,829−11.4% | Reduced |
| FMR LLC | 155,610 | $550.9K | 0.00% | +16,797+12.1% | Added |
| American Century Companies Inc | 157,211 | $556.5K | 0.00% | +22,324+16.6% | Added |
| Swiss National Bank | 162,703 | $576.0K | 0.00% | −9,000−5.2% | Reduced |
| Barclays PLC | 164,315 | $581.7K | 0.00% | +21,100+14.7% | Added |
| Cornerstone Capital, Inc. | 172,016 | $608.9K | 0.06% | 00.0% | Unchanged |
| Orchard Capital Managment, LLC | 218,765 | $774.4K | 0.31% | +2,383+1.1% | Added |
| Nuveen Asset Management, LLC | 227,801 | $806.4K | 0.00% | +60.0% | Added |
| TLS Advisors LLC | 250,185 | $886.0K | 2.03% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 259,171 | $917.5K | 0.00% | −63,047−19.6% | Reduced |
| ADAR1 Capital Management, LLC | 278,108 | $984.5K | 0.20% | −1,059,194−79.2% | Reduced |
| Tang Capital Management LLC | 300,000 | $1.06M | 0.07% | 00.0% | Unchanged |
| UBS Group AG | 306,387 | $1.08M | 0.00% | +244,666+396.4% | Added |
| Boothbay Fund Management, LLC | 375,000 | $1.33M | 0.04% | 00.0% | Unchanged |
| Citadel Advisors LLC | 437,970 | $1.55M | 0.00% | +163,115+59.3% | Added |
| Morgan Stanley | 442,055 | $1.56M | 0.00% | −14,134−3.1% | Reduced |
| Isthmus Partners, LLC | 453,135 | $1.60M | 0.19% | +7,001+1.6% | Added |
| Kent Lake PR LLC | 500,000 | $1.77M | 0.75% | −625,000−55.6% | Reduced |
| Goldman Sachs Group Inc | 548,535 | $1.94M | 0.00% | +220,396+67.2% | Added |
| Towerview LLC | 550,000 | $1.95M | 1.40% | 00.0% | Unchanged |
| Bank of America Corp | 616,359 | $2.18M | 0.00% | −106,307−14.7% | Reduced |
| Deutsche Bank AG | 626,106 | $2.22M | 0.00% | +31,793+5.3% | Added |
| Royce & Associates LP | 707,080 | $2.50M | 0.02% | +575,796+438.6% | Added |
| Impax Asset Management Group plc | 761,387 | $2.70M | 0.01% | 00.0% | Unchanged |
| Woodstock Corp | 802,578 | $2.84M | 0.27% | +9,725+1.2% | Added |
| Charles Schwab Investment Management Inc | 819,708 | $2.90M | 0.00% | +32,186+4.1% | Added |
| Northern Trust Corp | 882,455 | $3.12M | 0.00% | +45,169+5.4% | Added |
| Kornitzer Capital Management Inc | 898,845 | $3.18M | 0.06% | 00.0% | Unchanged |
| Murchinson Ltd. | 1,000,000 | $3.54M | 1.60% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,001,797 | $3.55M | 0.00% | +854,929+582.1% | Added |
| Knott David M Jr | 1,094,505 | $3.87M | 1.40% | −54,000−4.7% | Reduced |
| First Sabrepoint Capital Management LP | 1,460,602 | $5.17M | 1.94% | −204,398−12.3% | Reduced |
| Villere St Denis J & Co LLC | 1,466,070 | $5.19M | 0.47% | −33,245−2.2% | Reduced |
| State Street Corp | 2,074,810 | $7.34M | 0.00% | +43,134+2.1% | Added |
| Private Management Group Inc | 2,233,048 | $7.90M | 0.29% | −16,686−0.7% | Reduced |
| Geode Capital Management, LLC | 2,353,442 | $8.33M | 0.00% | +28,061+1.2% | Added |
| Rice Hall James & Associates, LLC | 2,649,007 | $9.38M | 0.52% | −73,314−2.7% | Reduced |
| Rubric Capital Management LP | 2,850,588 | $10.1M | 0.18% | 00.0% | Unchanged |
| Chicago Capital, LLC | 2,975,451 | $10.5M | 0.28% | −187,104−5.9% | Reduced |
| Dimensional Fund Advisors LP | 3,025,674 | $10.7M | 0.00% | +142,513+4.9% | Added |
| Macquarie Group Ltd | 4,300,667 | $15.2M | 0.02% | −22,433−0.5% | Reduced |
| Vanguard Group Inc | 5,055,310 | $17.9M | 0.00% | −136,375−2.6% | Reduced |
| BlackRock, Inc. | 7,179,020 | $25.4M | 0.00% | −44,529−0.6% | Reduced |
| Janus Henderson Group PLC | 7,960,321 | $28.2M | 0.01% | +88,993+1.1% | Added |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −105,198−100.0% | Sold out |
| Fuller & Thaler Asset Management, Inc. | 0 | $0 | 0.00% | −98,110−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −82,900−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −61,874−100.0% | Sold out |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 0 | $0 | 0.00% | −60,896−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −29,189−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −16,557−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −15,990−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −14,320−100.0% | Sold out |
| Bellevue Group AG | 0 | $0 | 0.00% | −11,456−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −10,670−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −8,800−100.0% | Sold out |
| Dynamic Wealth Strategies, LLC | 0 | $0 | 0.00% | −411−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −264−100.0% | Sold out |
| Claris Advisors, LLC | 0 | $0 | 0.00% | −168−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −116−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −92−100.0% | Sold out |
| CGC Financial Services, LLC | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Bessemer Group Inc | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Avista Capital Holdings, L.P. | – | – | – | – | Not filed |