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 |
|---|---|---|---|---|---|
| Millennium Management LLC | 131,671 | $23.6K | 0.00% | −55,074−29.5% | Reduced |
| Ameritas Investment Partners, Inc. | 9,652 | $23.2K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 8,315 | $20.0K | 0.00% | −67,376−89.0% | Reduced |
| Royal Bank of Canada | 7,256 | $18.0K | 0.00% | −5,551−43.3% | Reduced |
| Spire Wealth Management | 6,780 | $16.3K | 0.00% | +500+8.0% | Added |
| Tower Research Capital LLC (TRC) | 6,765 | $16.2K | 0.00% | +5,284+356.8% | Added |
| California State Teachers Retirement System | 6,687 | $16.0K | 0.00% | −71,266−91.4% | Reduced |
| Advisor Group Holdings, Inc. | 4,531 | $10.9K | 0.00% | −47−1.0% | Reduced |
| Federated Hermes, Inc. | 4,157 | $9.98K | 0.00% | −5,121−55.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 3,619 | $8.76K | 0.00% | −414−10.3% | Reduced |
| Lazard Asset Management LLC | 3,693 | $8.00K | 0.00% | −390−9.6% | Reduced |
| Amalgamated Bank | 3,170 | $8.00K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 3,099 | $7.44K | 0.00% | +558+22.0% | Added |
| Nisa Investment Advisors, LLC | 2,554 | $6.13K | 0.00% | −323−11.2% | Reduced |
| Jackson, Grant Investment Advisers, Inc. | 2,450 | $5.88K | 0.00% | 00.0% | Unchanged |
| Redwood Park Advisors LLC | 2,184 | $5.24K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 2,169 | $5.21K | 0.00% | +2,169 | New |
| Russell Investments Group, Ltd. | 1,924 | $4.62K | 0.00% | −18−0.9% | Reduced |
| Rise Advisors, LLC | 1,725 | $4.14K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 2,127 | $3.87K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 1,475 | $3.54K | 0.00% | −1,147−43.7% | Reduced |
| Larson Financial Group LLC | 1,470 | $3.53K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,108 | $3.00K | 0.00% | +850+329.5% | Added |
| Northwestern Mutual Wealth Management Co | 1,141 | $2.74K | 0.00% | +245+27.3% | Added |
| Wolverine Asset Management LLC | 766 | $1.84K | 0.00% | +766 | New |
| South State Corp. | 689 | $1.65K | 0.00% | +689 | New |
| Cheviot Value Management, LLC | 980 | $1.65K | 0.00% | +980 | New |
| CIBC Private Wealth Group, LLC | 784 | $1.49K | 0.00% | −58,800−98.7% | Reduced |
| North Star Investment Management Corp. | 550 | $1.32K | 0.00% | 00.0% | Unchanged |
| Coldstream Capital Management Inc | 474 | $1.14K | 0.00% | +474 | New |
| Comerica Bank | 471 | $1.13K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 475 | $1.00K | 0.00% | 00.0% | Unchanged |
| Dynamic Wealth Strategies, LLC | 411 | $986 | 0.00% | +411 | New |
| St Germain D J Co Inc | 367 | $881 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 361 | $866 | 0.00% | 00.0% | Unchanged |
| Cornerstone Planning Group LLC | 249 | $461 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 189 | $454 | 0.00% | 00.0% | Unchanged |
| Central Trust Co | 171 | $411 | 0.00% | 00.0% | Unchanged |
| CBIZ Investment Advisory Services, LLC | 78 | $187 | 0.00% | 00.0% | Unchanged |
| Salem Investment Counselors Inc | 60 | $144 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 0 | $142 | 0.00% | 0 | Unchanged |
| Farmers & Merchants Investments Inc | 53 | $127 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 42 | $101 | 0.00% | +42 | New |
| Rothschild Investment LLC | 40 | $96 | 0.00% | −60−60.0% | Reduced |
| Smartleaf Asset Management LLC | 34 | $82 | 0.00% | −1,774−98.1% | Reduced |
| Umb Bank N A | 29 | $70 | 0.00% | 00.0% | Unchanged |
| Mather Group, LLC. | 21 | $50 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 17 | $41 | 0.00% | +3+21.4% | Added |
| Farther Finance Advisors, LLC | 5 | $11 | 0.00% | −236−97.9% | Reduced |
| Parallel Advisors, LLC | 4 | $10 | 0.00% | 00.0% | Unchanged |
| Parkworth Wealth Management, Inc. | 4 | $10 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 231 | $0 | 0.00% | −1,100−82.6% | Reduced |
| Covestor Ltd | 94 | $0 | 0.00% | +14+17.5% | 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 |