OmniAb, Inc.
OABIW- 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; 13 institutions reported holding it in 13F filings for Q2 2026, worth $238.9K in total; no superinvestor holds it.
Other share classesOABI
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
- 17
- +1 vs. Q3 2023
- Shares held
- 16.9M
- +11.2M (+200.3%) vs. Q3 2023
- Total value
- $17.3M
- +$11.4M (+191.5%) vs. Q3 2023
- New holders
- 3
- 0 more added
- Sold out
- 2
- 5 more reduced
Compare with Q3 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OABIW 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 | 13 | $238.9K |
| Q1 2026 | 12 | $246.8K |
| Q4 2025 | 12 | $325.0K |
| Q3 2025 | 12 | $451.8K |
| Q2 2025 | 12 | $558.7K |
| Q1 2025 | 12 | $1.01M |
| Q4 2024 | 11 | $1.06M |
| Q3 2024 | 15 | $5.48M |
| Q2 2024 | 15 | $7.38M |
| Q1 2024 | 16 | $11.6M |
| Q4 2023 | 17 | $17.3M |
| Q3 2023 | 16 | $5.95M |
| Q2 2023 | 21 | $4.44M |
| Q1 2023 | 22 | $3.74M |
| Q4 2022 | 22 | $3.12M |
| Q3 2022 | 0 | $0 |
| 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 |
|---|---|---|---|---|---|
| Avista Capital Holdings, L.P. | 11,345,489 | $11.7M | 10.91% | +11,345,489 | New |
| Walleye Capital LLC | 1,806,212 | $1.86M | 0.03% | −19,790−1.1% | Reduced |
| Citadel Advisors LLC | 817,967 | $842.5K | 0.00% | −1930.0% | Reduced |
| LMR Partners LLP | 644,600 | $663.9K | 0.02% | 00.0% | Unchanged |
| Privium Fund Management B.V. | 609,855 | $628.2K | 0.17% | −12,128−1.9% | Reduced |
| Aristeia Capital LLC | 439,555 | $450.5K | 0.02% | +439,555 | New |
| Sculptor Capital LP | 397,780 | $407.7K | 0.01% | 00.0% | Unchanged |
| Calamos Advisors LLC | 200,000 | $206.0K | 0.00% | 00.0% | Unchanged |
| MMCAP International Inc. SPC | 158,333 | $163.1K | 0.03% | 00.0% | Unchanged |
| Antara Capital LP | 148,499 | $153.0K | 0.59% | 00.0% | Unchanged |
| Sea Otter Advisors LLC | 145,317 | $149.7K | 0.14% | −27,700−16.0% | Reduced |
| Wolverine Asset Management LLC | 53,753 | $55.4K | 0.00% | +53,753 | New |
| CSS LLC | 29,656 | $30.5K | 0.00% | 00.0% | Unchanged |
| Walleye Trading LLC | 22,512 | $23.2K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 16,349 | $16.8K | 0.00% | −14,194−46.5% | Reduced |
| Omers Administration Corp | 10,000 | $10.3K | 0.00% | 00.0% | Unchanged |
| Anson Funds Management LP | 11,833 | – | – | 00.0% | Unchanged |
| Governors Lane LP | 0 | $0 | 0.00% | −499,900−100.0% | Sold out |
| Castle Creek Arbitrage, LLC | 0 | $0 | 0.00% | −20,087−100.0% | Sold out |