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 2023
Institutional positions in OmniAb, Inc. as of Mar 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
- 142
- −4 vs. Q4 2022
- Shares held
- 66.3M
- +1.46M (+2.2%) vs. Q4 2022
- Total value
- $243.3M
- +$9.51M (+4.1%) vs. Q4 2022
- New holders
- 15
- 45 more added
- Sold out
- 19
- 47 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding OmniAb, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 6,618,226 | $24.4M | 0.02% | +36,025+0.5% | Added |
| BlackRock Inc. | 5,712,359 | $21.0M | 0.00% | −50,020−0.9% | Reduced |
| Vanguard Group Inc | 5,677,541 | $20.9M | 0.00% | −726,242−11.3% | Reduced |
| Millennium Management LLC | 5,469,578 | $19.7M | 0.02% | +346,180+6.8% | Added |
| Macquarie Group Ltd | 3,778,909 | $13.9M | 0.02% | −4,860−0.1% | Reduced |
| Private Management Group Inc | 3,282,322 | $12.1M | 0.54% | +3,282,322 | New |
| First Sabrepoint Capital Management LP | 3,200,000 | $11.8M | 4.95% | +1,750,000+120.7% | Added |
| Chicago Capital, LLC | 2,838,901 | $10.4M | 0.52% | +438,184+18.3% | Added |
| Rice Hall James & Associates, LLC | 2,820,102 | $10.4M | 0.59% | +336,336+13.5% | Added |
| William Blair Investment Management, LLC | 2,748,869 | $10.1M | 0.04% | +223,252+8.8% | Added |
| Villere St Denis J & Co LLC | 2,279,082 | $8.39M | 0.61% | −13,949−0.6% | Reduced |
| Dimensional Fund Advisors LP | 1,934,861 | $7.12M | 0.00% | −77,853−3.9% | Reduced |
| State Street Corp | 1,796,353 | $6.61M | 0.00% | +44,959+2.6% | Added |
| Geode Capital Management, LLC | 1,761,524 | $6.48M | 0.00% | +3,387+0.2% | Added |
| Kornitzer Capital Management Inc | 1,760,375 | $6.48M | 0.13% | 00.0% | Unchanged |
| Orchard Capital Managment, LLC | 1,280,190 | $4.71M | 1.58% | 00.0% | Unchanged |
| Impax Asset Management Group plc | 1,148,184 | $4.23M | 0.02% | 00.0% | Unchanged |
| Knott David M Jr | 1,086,505 | $4.00M | 1.68% | −184,434−14.5% | Reduced |
| Northern Trust Corp | 871,292 | $3.21M | 0.00% | +28,169+3.3% | Added |
| Stephens Investment Management Group LLC | 827,778 | $3.05M | 0.05% | −33,625−3.9% | Reduced |
| Charles Schwab Investment Management Inc | 708,654 | $2.61M | 0.00% | −195,078−21.6% | Reduced |
| Norges Bank | 623,616 | $2.29M | 0.00% | 00.0% | Unchanged |
| Woodstock Corp | 619,149 | $2.28M | 0.29% | +288,548+87.3% | Added |
| 1492 Capital Management LLC | 443,108 | $1.63M | 1.01% | −376−0.1% | Reduced |
| AWH Capital, L.P. | 415,000 | $1.53M | 1.56% | +192,500+86.5% | Added |
| Citadel Advisors LLC | 371,053 | $1.37M | 0.00% | −745,914−66.8% | Reduced |
| Bank of America Corp | 368,589 | $1.36M | 0.00% | +40,458+12.3% | Added |
| Bank of New York Mellon Corp | 364,522 | $1.34M | 0.00% | −9,176−2.5% | Reduced |
| TLS Advisors LLC | 356,592 | $1.31M | 6.75% | −30,000−7.8% | Reduced |
| Nuveen Asset Management, LLC | 261,860 | $964.0K | 0.00% | +37,446+16.7% | Added |
| Isthmus Partners, LLC | 260,244 | $957.7K | 0.14% | +68,171+35.5% | Added |
| Deutsche Bank AG | 258,386 | $950.9K | 0.00% | +1,137+0.4% | Added |
| Goldman Sachs Group Inc | 240,254 | $884.1K | 0.00% | +158,474+193.8% | Added |
| Murchinson Ltd. | 232,970 | $847.2K | 0.16% | −141,612−37.8% | Reduced |
| Morgan Stanley | 219,706 | $808.5K | 0.00% | +50,897+30.2% | Added |
| SG Americas Securities, LLC | 204,761 | $754.0K | 0.01% | −5,013−2.4% | Reduced |
| HRT Financial LP | 199,967 | $735.0K | 0.01% | +199,967 | New |
| Swiss National Bank | 185,903 | $684.1K | 0.00% | −10,100−5.2% | Reduced |
| Boothbay Fund Management, LLC | 176,815 | $650.7K | 0.02% | −186,176−51.3% | Reduced |
| JPMorgan Chase & Co | 176,463 | $649.0K | 0.00% | +14,175+8.7% | Added |
| Cornerstone Capital, Inc. | 174,659 | $642.7K | 0.08% | 00.0% | Unchanged |
| GW&K Investment Management, LLC | 147,489 | $543.0K | 0.01% | −150.0% | Reduced |
| Rhumbline Advisers | 128,289 | $472.0K | 0.00% | +5,009+4.1% | Added |
| Diametric Capital, LP | 116,134 | $427.4K | 0.21% | +24,746+27.1% | Added |
| Court Place Advisors, LLC | 114,107 | $419.9K | 0.15% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 107,865 | $396.9K | 0.00% | +6,700+6.6% | Added |
| California State Teachers Retirement System | 104,302 | $383.8K | 0.00% | +1,019+1.0% | Added |
| Standard Life Aberdeen plc | 103,706 | $381.6K | 0.00% | +103,706 | New |
| Credit Suisse AG | 86,748 | $319.2K | 0.00% | −520−0.6% | Reduced |
| Jane Street Group, LLC | 80,164 | $295.0K | 0.00% | −181,946−69.4% | Reduced |
| Legal & General Group Plc | 72,477 | $266.7K | 0.00% | +3,068+4.4% | Added |
| American Century Companies Inc | 70,762 | $248.4K | 0.00% | −154,556−68.6% | Reduced |
| Nebula Research & Development LLC | 63,238 | $232.7K | 0.41% | +63,238 | New |
| UBS Asset Management Americas Inc | 56,705 | $208.7K | 0.00% | +56,705 | New |
| Squarepoint Ops LLC | 51,190 | $188.4K | 0.00% | +19,190+60.0% | Added |
| Blair William & Co | 50,105 | $184.4K | 0.00% | −240.0% | Reduced |
| Atom Investors LP | 48,402 | $178.1K | 0.10% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 44,854 | $165.1K | 0.00% | −3,783−7.8% | Reduced |
| MetLife Investment Management | 42,222 | $155.4K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 39,964 | $147.1K | 0.00% | +39,964 | New |
| Barclays PLC | 38,973 | $143.4K | 0.00% | +17,806+84.1% | Added |
| Prelude Capital Management, LLC | 38,094 | $140.2K | 0.01% | +5,597+17.2% | Added |
| American International Group, Inc. | 37,193 | $136.9K | 0.00% | +741+2.0% | Added |
| Mariner, LLC | 35,829 | $132.0K | 0.00% | +35,829 | New |
| Advisors Asset Management, Inc. | 34,789 | $128.0K | 0.00% | −557−1.6% | Reduced |
| Guggenheim Capital LLC | 33,897 | $124.7K | 0.00% | +2,659+8.5% | Added |
| New York State Common Retirement Fund | 32,557 | $119.8K | 0.00% | −21,000−39.2% | Reduced |
| First Republic Investment Management, Inc. | 32,309 | $118.9K | 0.00% | +7,120+28.3% | Added |
| LPL Financial LLC | 30,662 | $112.8K | 0.00% | −16,937−35.6% | Reduced |
| Voya Investment Management LLC | 28,356 | $104.3K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 26,588 | $97.8K | 0.00% | −62,158−70.0% | Reduced |
| Tower Research Capital LLC (TRC) | 25,256 | $93.0K | 0.00% | −2,060−7.5% | Reduced |
| Arizona State Retirement System | 24,952 | $91.8K | 0.00% | +1,639+7.0% | Added |
| NJ State Employees Deferred Compensation Plan | 24,500 | $90.2K | 0.01% | 00.0% | Unchanged |
| SEI Investments Co | 22,990 | $84.6K | 0.00% | +6,014+35.4% | Added |
| Trivant Custom Portfolio Group, LLC | 22,250 | $81.9K | 0.06% | +22,250 | New |
| Werba Rubin Papier Wealth Management | 20,410 | $75.1K | 0.03% | +20,410 | New |
| Investment Management of Virginia LLC | 19,972 | $73.5K | 0.01% | −14,738−42.5% | Reduced |
| State Board of Administration of Florida Retirement System | 19,943 | $73.4K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 19,359 | $71.2K | 0.00% | +16,084+491.1% | Added |
| Legato Capital Management LLC | 18,590 | $68.4K | 0.01% | +707+4.0% | Added |
| Eagle Asset Management Inc | 17,795 | $65.0K | 0.00% | +5,850+49.0% | Added |
| Baird Financial Group, Inc. | 17,550 | $64.6K | 0.00% | −698−3.8% | Reduced |
| Raymond James & Associates | 16,333 | $60.1K | 0.00% | −49−0.3% | Reduced |
| STRS Ohio | 16,200 | $59.0K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 16,070 | $59.0K | 0.00% | +16,070 | New |
| Henshaw Capital LLC | 15,807 | $58.2K | 0.00% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 14,396 | $53.0K | 0.00% | +14,396 | New |
| Public Employees Retirement Association of Colorado | 14,264 | $52.0K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 14,085 | $52.0K | 0.00% | +575+4.3% | Added |
| Two Sigma Investments, LP | 13,700 | $50.4K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 13,081 | $48.0K | 0.00% | −490−3.6% | Reduced |
| Two Sigma Advisers, LP | 12,850 | $47.3K | 0.00% | +1,100+9.4% | Added |
| Teacher Retirement System of Texas | 12,902 | $47.0K | 0.00% | −10,443−44.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 12,017 | $44.2K | 0.00% | +3,026+33.7% | Added |
| Raymond James Financial Services Advisors, Inc. | 11,839 | $43.6K | 0.00% | −29−0.2% | Reduced |
| Ameritas Advisory Services, LLC | 11,147 | $41.0K | 0.00% | −490−4.2% | Reduced |
| State of Wisconsin Investment Board | 10,847 | $39.9K | 0.00% | +541+5.2% | Added |
| Handelsbanken Fonder AB | 10,574 | $39.0K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 10,422 | $38.4K | 0.00% | −266−2.5% | Reduced |