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 |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 7,960,321 | $28.2M | 0.01% | +88,993+1.1% | Added |
| BlackRock, Inc. | 7,179,020 | $25.4M | 0.00% | −44,529−0.6% | Reduced |
| Vanguard Group Inc | 5,055,310 | $17.9M | 0.00% | −136,375−2.6% | Reduced |
| Macquarie Group Ltd | 4,300,667 | $15.2M | 0.02% | −22,433−0.5% | Reduced |
| Dimensional Fund Advisors LP | 3,025,674 | $10.7M | 0.00% | +142,513+4.9% | Added |
| Chicago Capital, LLC | 2,975,451 | $10.5M | 0.28% | −187,104−5.9% | Reduced |
| Rubric Capital Management LP | 2,850,588 | $10.1M | 0.18% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 2,649,007 | $9.38M | 0.52% | −73,314−2.7% | Reduced |
| Geode Capital Management, LLC | 2,353,442 | $8.33M | 0.00% | +28,061+1.2% | Added |
| Private Management Group Inc | 2,233,048 | $7.90M | 0.29% | −16,686−0.7% | Reduced |
| State Street Corp | 2,074,810 | $7.34M | 0.00% | +43,134+2.1% | Added |
| Villere St Denis J & Co LLC | 1,466,070 | $5.19M | 0.47% | −33,245−2.2% | Reduced |
| First Sabrepoint Capital Management LP | 1,460,602 | $5.17M | 1.94% | −204,398−12.3% | Reduced |
| Knott David M Jr | 1,094,505 | $3.87M | 1.40% | −54,000−4.7% | Reduced |
| JPMorgan Chase & Co | 1,001,797 | $3.55M | 0.00% | +854,929+582.1% | Added |
| Murchinson Ltd. | 1,000,000 | $3.54M | 1.60% | 00.0% | Unchanged |
| Kornitzer Capital Management Inc | 898,845 | $3.18M | 0.06% | 00.0% | Unchanged |
| Northern Trust Corp | 882,455 | $3.12M | 0.00% | +45,169+5.4% | Added |
| Charles Schwab Investment Management Inc | 819,708 | $2.90M | 0.00% | +32,186+4.1% | Added |
| Woodstock Corp | 802,578 | $2.84M | 0.27% | +9,725+1.2% | Added |
| Impax Asset Management Group plc | 761,387 | $2.70M | 0.01% | 00.0% | Unchanged |
| Royce & Associates LP | 707,080 | $2.50M | 0.02% | +575,796+438.6% | Added |
| Deutsche Bank AG | 626,106 | $2.22M | 0.00% | +31,793+5.3% | Added |
| Bank of America Corp | 616,359 | $2.18M | 0.00% | −106,307−14.7% | Reduced |
| Towerview LLC | 550,000 | $1.95M | 1.40% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 548,535 | $1.94M | 0.00% | +220,396+67.2% | Added |
| Kent Lake PR LLC | 500,000 | $1.77M | 0.75% | −625,000−55.6% | Reduced |
| Isthmus Partners, LLC | 453,135 | $1.60M | 0.19% | +7,001+1.6% | Added |
| Morgan Stanley | 442,055 | $1.56M | 0.00% | −14,134−3.1% | Reduced |
| Citadel Advisors LLC | 437,970 | $1.55M | 0.00% | +163,115+59.3% | Added |
| Boothbay Fund Management, LLC | 375,000 | $1.33M | 0.04% | 00.0% | Unchanged |
| UBS Group AG | 306,387 | $1.08M | 0.00% | +244,666+396.4% | Added |
| Tang Capital Management LLC | 300,000 | $1.06M | 0.07% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 278,108 | $984.5K | 0.20% | −1,059,194−79.2% | Reduced |
| Bank of New York Mellon Corp | 259,171 | $917.5K | 0.00% | −63,047−19.6% | Reduced |
| TLS Advisors LLC | 250,185 | $886.0K | 2.03% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 227,801 | $806.4K | 0.00% | +60.0% | Added |
| Orchard Capital Managment, LLC | 218,765 | $774.4K | 0.31% | +2,383+1.1% | Added |
| Cornerstone Capital, Inc. | 172,016 | $608.9K | 0.06% | 00.0% | Unchanged |
| Barclays PLC | 164,315 | $581.7K | 0.00% | +21,100+14.7% | Added |
| Swiss National Bank | 162,703 | $576.0K | 0.00% | −9,000−5.2% | Reduced |
| American Century Companies Inc | 157,211 | $556.5K | 0.00% | +22,324+16.6% | Added |
| FMR LLC | 155,610 | $550.9K | 0.00% | +16,797+12.1% | Added |
| Rhumbline Advisers | 153,812 | $544.5K | 0.00% | −19,829−11.4% | Reduced |
| UBS Asset Management Americas Inc | 124,021 | $439.0K | 0.00% | −4,181−3.3% | Reduced |
| Alliancebernstein L.P. | 120,715 | $427.3K | 0.00% | 00.0% | Unchanged |
| Northeast Financial Consultants Inc | 110,996 | $392.9K | 0.02% | +110,996 | New |
| Invesco Ltd. | 93,653 | $331.5K | 0.00% | +2,997+3.3% | Added |
| Citigroup Inc | 78,410 | $277.6K | 0.00% | +8,406+12.0% | Added |
| California State Teachers Retirement System | 77,953 | $276.0K | 0.00% | −5,724−6.8% | Reduced |
| Legal & General Group Plc | 75,691 | $267.9K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 186,745 | $239.9K | 0.00% | +61,993+49.7% | Added |
| Jane Street Group, LLC | 63,955 | $226.4K | 0.00% | −72,404−53.1% | Reduced |
| Wells Fargo & Company | 62,859 | $222.5K | 0.00% | +12,278+24.3% | Added |
| Intech Investment Management LLC | 61,496 | $217.7K | 0.00% | +45,059+274.1% | Added |
| CIBC Private Wealth Group, LLC | 59,584 | $212.7K | 0.00% | 00.0% | Unchanged |
| PDT Partners, LLC | 56,247 | $199.1K | 0.02% | +27,236+93.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 52,797 | $186.9K | 0.00% | +2,280+4.5% | Added |
| XTX Topco Ltd | 51,790 | $183.3K | 0.02% | +51,790 | New |
| Balyasny Asset Management LLC | 51,159 | $181.1K | 0.00% | +51,159 | New |
| Susquehanna International Group, LLP | 49,749 | $176.1K | 0.00% | +31,121+167.1% | Added |
| MetLife Investment Management | 48,425 | $171.4K | 0.00% | −7,251−13.0% | Reduced |
| Gsa Capital Partners LLP | 46,899 | $166.0K | 0.01% | −44,538−48.7% | Reduced |
| Corebridge Financial, Inc. | 45,882 | $162.4K | 0.00% | −3,463−7.0% | Reduced |
| Blair William & Co | 45,171 | $159.9K | 0.00% | −1,960−4.2% | Reduced |
| SEI Investments Co | 43,486 | $153.9K | 0.00% | +606+1.4% | Added |
| SG Americas Securities, LLC | 40,609 | $144.0K | 0.00% | +5,751+16.5% | Added |
| Squarepoint Ops LLC | 39,264 | $139.0K | 0.00% | +9,809+33.3% | Added |
| Price T Rowe Associates Inc | 38,217 | $136.0K | 0.00% | +7,950+26.3% | Added |
| Ameriprise Financial Inc | 38,389 | $135.9K | 0.00% | +2,460+6.8% | Added |
| Henshaw Capital LLC | 37,507 | $132.8K | 0.01% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 36,873 | $130.5K | 0.00% | −921−2.4% | Reduced |
| Gallagher Fiduciary Advisors, LLC | 36,752 | $130.1K | 0.03% | +1,657+4.7% | Added |
| Atria Investments LLC | 36,500 | $129.2K | 0.00% | +1,419+4.0% | Added |
| ProShare Advisors LLC | 31,724 | $112.3K | 0.00% | +7,302+29.9% | Added |
| Voya Investment Management LLC | 31,256 | $110.6K | 0.00% | −2,117−6.3% | Reduced |
| Mesirow Financial Investment Management, Inc. | 30,764 | $108.9K | 0.00% | +366+1.2% | Added |
| Legato Capital Management LLC | 30,284 | $107.2K | 0.01% | 00.0% | Unchanged |
| Connors Investor Services Inc | 29,611 | $104.8K | 0.01% | +4,611+18.4% | Added |
| State Board of Administration of Florida Retirement System | 26,753 | $94.7K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 25,659 | $90.8K | 0.01% | +2,932+12.9% | Added |
| NJ State Employees Deferred Compensation Plan | 24,500 | $86.7K | 0.01% | 00.0% | Unchanged |
| HRT Financial LP | 24,432 | $86.0K | 0.00% | −24,994−50.6% | Reduced |
| Arizona State Retirement System | 24,005 | $85.0K | 0.00% | −1,395−5.5% | Reduced |
| Court Place Advisors, LLC | 23,556 | $83.4K | 0.03% | −77,445−76.7% | Reduced |
| Palumbo Wealth Management LLC | 21,204 | $75.1K | 0.03% | −3,436−13.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,053 | $74.5K | 0.00% | −531−2.5% | Reduced |
| HighTower Advisors, LLC | 20,817 | $73.7K | 0.00% | −565−2.6% | Reduced |
| BFSG, LLC | 20,480 | $72.5K | 0.01% | 00.0% | Unchanged |
| BBR Partners, LLC | 20,000 | $70.8K | 0.00% | −50,000−71.4% | Reduced |
| LPL Financial LLC | 19,558 | $69.2K | 0.00% | −60.0% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 18,614 | $65.9K | 0.00% | +18,614 | New |
| BNP Paribas Arbitrage, SA | 17,549 | $62.1K | 0.00% | +17,549 | New |
| Engineers Gate Manager LP | 17,284 | $61.2K | 0.00% | +17,284 | New |
| Sherbrooke Park Advisers LLC | 17,226 | $61.0K | 0.02% | +6,001+53.5% | Added |
| Captrust Financial Advisors | 16,595 | $58.7K | 0.00% | −40.0% | Reduced |
| Atom Investors LP | 16,420 | $58.1K | 0.01% | −19,491−54.3% | Reduced |
| Thrive Wealth Management, LLC | 16,081 | $56.9K | 0.01% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 14,264 | $50.0K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 13,720 | $48.6K | 0.00% | +13,720 | New |