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 2023
Institutional positions in OmniAb, Inc. as of Dec 31, 2023. 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
- 157
- +10 vs. Q3 2023
- Shares held
- 83.8M
- +15.1M (+22.0%) vs. Q3 2023
- Total value
- $514.0M
- +$158.2M (+44.5%) vs. Q3 2023
- New holders
- 26
- 44 more added
- Sold out
- 16
- 42 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding OmniAb, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Invesco Ltd. | 59,920 | $369.7K | 0.00% | −453,596−88.3% | Reduced |
| Captrust Financial Advisors | 68,898 | $425.1K | 0.00% | −5,486−7.4% | Reduced |
| American Century Companies Inc | 70,920 | $437.6K | 0.00% | +647+0.9% | Added |
| Legal & General Group Plc | 74,582 | $460.2K | 0.00% | 00.0% | Unchanged |
| Credit Suisse AG | 79,359 | $489.6K | 0.00% | −99−0.1% | Reduced |
| UBS Asset Management Americas Inc | 79,905 | $493.0K | 0.00% | +12,200+18.0% | Added |
| Allspring Global Investments Holdings, LLC | 88,452 | $545.7K | 0.00% | +88,452 | New |
| California State Teachers Retirement System | 93,118 | $574.5K | 0.00% | −4,119−4.2% | Reduced |
| Standard Life Aberdeen plc | 103,708 | $639.9K | 0.00% | 00.0% | Unchanged |
| Court Place Advisors, LLC | 111,657 | $688.9K | 0.23% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 113,685 | $701.4K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 114,929 | $709.1K | 0.00% | +69,586+153.5% | Added |
| UBS Group AG | 122,664 | $756.8K | 0.00% | +51,036+71.3% | Added |
| Barclays PLC | 145,298 | $896.5K | 0.00% | +113,170+352.2% | Added |
| Rhumbline Advisers | 158,520 | $978.1K | 0.00% | +7,956+5.3% | Added |
| Royce & Associates LP | 160,148 | $988.1K | 0.01% | +114,485+250.7% | Added |
| Cornerstone Capital, Inc. | 166,016 | $1.02M | 0.11% | 00.0% | Unchanged |
| Swiss National Bank | 171,703 | $1.06M | 0.00% | −18,900−9.9% | Reduced |
| Towerview LLC | 175,000 | $1.08M | 0.66% | +65,000+59.1% | Added |
| Goldman Sachs Group Inc | 189,437 | $1.17M | 0.00% | +18,542+10.8% | Added |
| JPMorgan Chase & Co | 222,294 | $1.37M | 0.00% | +71,284+47.2% | Added |
| Nuveen Asset Management, LLC | 227,860 | $1.41M | 0.00% | +1,807+0.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 244,619 | $1.51M | 0.01% | +15,164+6.6% | Added |
| D. E. Shaw & Co., Inc. | 248,112 | $1.53M | 0.00% | +42,325+20.6% | Added |
| TLS Advisors LLC | 250,185 | $1.54M | 5.12% | 00.0% | Unchanged |
| Kent Lake Capital LLC | 300,000 | $1.85M | 0.71% | −96,154−24.3% | Reduced |
| Isthmus Partners, LLC | 310,774 | $1.92M | 0.25% | +48,138+18.3% | Added |
| AWH Capital, L.P. | 422,401 | $2.61M | 2.62% | −133,099−24.0% | Reduced |
| Bank of America Corp | 425,093 | $2.62M | 0.00% | −2,702−0.6% | Reduced |
| Morgan Stanley | 458,362 | $2.83M | 0.00% | +197,161+75.5% | Added |
| Fuller & Thaler Asset Management, Inc. | 463,425 | $2.86M | 0.01% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 464,954 | $2.87M | 0.00% | +46,515+11.1% | Added |
| ADAR1 Capital Management, LLC | 478,171 | $2.95M | 1.32% | +478,171 | New |
| Deutsche Bank AG | 579,891 | $3.58M | 0.00% | −1,078−0.2% | Reduced |
| Woodstock Corp | 743,002 | $4.58M | 0.53% | +57,212+8.3% | Added |
| Charles Schwab Investment Management Inc | 751,496 | $4.64M | 0.00% | +9,734+1.3% | Added |
| Impax Asset Management Group plc | 848,184 | $5.23M | 0.02% | −300,000−26.1% | Reduced |
| Northern Trust Corp | 873,432 | $5.39M | 0.00% | −10,871−1.2% | Reduced |
| Knott David M Jr | 1,086,505 | $6.70M | 2.56% | 00.0% | Unchanged |
| Kornitzer Capital Management Inc | 1,219,955 | $7.53M | 0.15% | −510,470−29.5% | Reduced |
| Orchard Capital Managment, LLC | 1,358,028 | $8.38M | 2.62% | +77,838+6.1% | Added |
| First Sabrepoint Capital Management LP | 1,657,173 | $10.2M | 4.65% | +208,374+14.4% | Added |
| State Street Corp | 2,009,408 | $12.4M | 0.00% | −61,541−3.0% | Reduced |
| Villere St Denis J & Co LLC | 2,151,769 | $13.3M | 1.09% | −74,566−3.3% | Reduced |
| Geode Capital Management, LLC | 2,151,555 | $13.3M | 0.00% | +74,457+3.6% | Added |
| Millennium Management LLC | 2,276,418 | $13.3M | 0.01% | −1,522,828−40.1% | Reduced |
| Dimensional Fund Advisors LP | 2,623,995 | $16.2M | 0.00% | +293,674+12.6% | Added |
| Private Management Group Inc | 2,639,651 | $16.3M | 0.62% | −32,641−1.2% | Reduced |
| Rice Hall James & Associates, LLC | 2,712,644 | $16.7M | 0.97% | −68,182−2.5% | Reduced |
| Rubric Capital Management LP | 2,850,588 | $17.6M | 0.66% | 00.0% | Unchanged |
| Chicago Capital, LLC | 3,194,473 | $19.7M | 0.71% | −1,1250.0% | Reduced |
| William Blair Investment Management, LLC | 3,337,241 | $20.6M | 0.06% | +474,585+16.6% | Added |
| Macquarie Group Ltd | 3,568,230 | $22.0M | 0.03% | −331,084−8.5% | Reduced |
| Vanguard Group Inc | 5,651,408 | $34.9M | 0.00% | +155,464+2.8% | Added |
| BlackRock Inc. | 7,287,819 | $45.0M | 0.00% | +521,034+7.7% | Added |
| Janus Henderson Group PLC | 7,777,897 | $48.0M | 0.03% | +96,622+1.3% | Added |
| Avista Capital Holdings, L.P. | 15,817,934 | $95.4M | 89.09% | +15,817,934 | New |
| 1492 Capital Management LLC | 0 | $0 | 0.00% | −438,810−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −35,013−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −34,942−100.0% | Sold out |
| Advisors Asset Management, Inc. | 0 | $0 | 0.00% | −33,906−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −21,470−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −11,050−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −10,968−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −11,147−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −10,570−100.0% | Sold out |
| Financial Advocates Investment Management | 0 | $0 | 0.00% | −10,105−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −490−100.0% | Sold out |
| GW&K Investment Management, LLC | 0 | $0 | 0.00% | −195−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Tucker Asset Management LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Gradient Investments LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| First Republic Investment Management, Inc. | – | – | – | – | Not filed |