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, Q3 2025
Institutional positions in OmniAb, Inc. as of Sep 30, 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
- 140
- −2 vs. Q2 2025
- Shares held
- 63.0M
- +8.06M (+14.7%) vs. Q2 2025
- Total value
- $100.5M
- +$5.21M (+5.5%) vs. Q2 2025
- New holders
- 16
- 33 more added
- Sold out
- 18
- 52 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding OmniAb, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nisa Investment Advisors, LLC | 5,113 | $8.18K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 4,744 | $7.59K | 0.00% | +18+0.4% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 4,185 | $6.70K | 0.00% | −37,453−89.9% | Reduced |
| Smartleaf Asset Management LLC | 3,389 | $5.46K | 0.00% | +344+11.3% | Added |
| Amalgamated Bank | 3,170 | $5.00K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 3,334 | $5.00K | 0.00% | +3,134+1,567.0% | Added |
| GF Fund Management Co. Ltd. | 2,587 | $4.14K | 0.00% | −512−16.5% | Reduced |
| Jackson, Grant Investment Advisers, Inc. | 2,450 | $3.92K | 0.00% | 00.0% | Unchanged |
| Redwood Park Advisors LLC | 2,184 | $3.50K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 2,127 | $3.40K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 2,112 | $3.38K | 0.00% | +1,646+353.2% | Added |
| Larson Financial Group LLC | 1,470 | $2.35K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 1,256 | $2.01K | 0.00% | +1,256 | New |
| Rockefeller Capital Management L.P. | 980 | $1.57K | 0.00% | +980 | New |
| Cheviot Value Management, LLC | 980 | $1.52K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 665 | $1.06K | 0.00% | −460−40.9% | Reduced |
| Daiwa Securities Group Inc. | 475 | $1.00K | 0.00% | 00.0% | Unchanged |
| North Star Investment Management Corp. | 550 | $880 | 0.00% | 00.0% | Unchanged |
| Dynamic Wealth Strategies, LLC | 411 | $658 | 0.00% | 00.0% | Unchanged |
| St Germain D J Co Inc | 367 | $587 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 361 | $578 | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 344 | $551 | 0.00% | +344 | New |
| The PNC Financial Services Group, Inc. | 318 | $509 | 0.00% | −1,239−79.6% | Reduced |
| CIBC Private Wealth Group, LLC | 294 | $470 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 285 | $456 | 0.00% | +285 | New |
| GWM Advisors LLC | 189 | $302 | 0.00% | 00.0% | Unchanged |
| Central Trust Co | 171 | $274 | 0.00% | 00.0% | Unchanged |
| Scarborough Advisors, LLC | 161 | $258 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 127 | $203 | 0.00% | 00.0% | Unchanged |
| Wolverine Asset Management LLC | 58 | $92 | 0.00% | −708−92.4% | Reduced |
| Farmers & Merchants Investments Inc | 53 | $85 | 0.00% | 00.0% | Unchanged |
| Transamerica Financial Advisors, Inc. | 48 | $77 | 0.00% | +48 | New |
| Umb Bank N A | 29 | $46 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 25 | $40 | 0.00% | −101−80.2% | Reduced |
| Mather Group, LLC. | 21 | $34 | 0.00% | +21 | New |
| Parallel Advisors, LLC | 4 | $6 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 4 | $6 | 0.00% | +4 | New |
| Caitong International Asset Management Co., Ltd | 1 | $2 | 0.00% | −3,706−100.0% | Reduced |
| Farther Finance Advisors, LLC | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 131 | $0 | 0.00% | 00.0% | Unchanged |
| Royce & Associates LP | 0 | $0 | 0.00% | −867,080−100.0% | Sold out |
| Murchinson Ltd. | 0 | $0 | 0.00% | −502,810−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −359,665−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −188,554−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −137,171−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −100,381−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −44,809−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −26,753−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −20,794−100.0% | Sold out |
| CWC Advisors, LLC. | 0 | $0 | 0.00% | −17,261−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −12,854−100.0% | Sold out |
| Colony Group, LLC | 0 | $0 | 0.00% | −12,342−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −7,027−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −2,741−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −773−100.0% | Sold out |
| CBIZ Investment Advisory Services, LLC | 0 | $0 | 0.00% | −78−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Northeast Financial Consultants Inc | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |