OmniabOABI
13F holders, Q1 2025 (March 31)152holders −12
15new positions
25sold out
4famous investors
$2.40avg. 13F price*
At the end of Q1 2025, 152 institutions reported holding Omniab Inc. (OABI) in their 13F filings, down 12 from Q4 2024. 15 opened new positions and 25 sold out. The largest holders were Janus Henderson Group PLC ($19.5M), BlackRock, Inc. ($16.9M) and Vanguard Group Inc. ($12.4M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Omniab Inc.
- CUSIP
- 68218J103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $10.1M |
| Exits | 25 | $5.7M |
All 13F filers, Q4 2024 → Q1 2025: 5,607,255 shares bought and 5,791,995 shares sold, net −184,740 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 152 holders
| Janus Henderson Group PLC | 0.01% | Add +1.2% | 8,058,228 | $19.5M |
| BlackRock, Inc. | 0.00% | Reduce -1.7% | 7,058,742 | $16.9M |
| Vanguard Group Inc. | 0.00% | Add +2.5% | 5,179,306 | $12.4M |
| Macquarie Group Ltd. | 0.01% | Add +2.8% | 4,422,738 | $10.6M |
| Whitefort Capital Management, LP | 5.07% | New | 3,914,896 | $9.4M |
| Dimensional Fund Advisors LP | 0.00% | Add +3.5% | 3,131,718 | $7.5M |
| Rubric Capital Management LP | 0.12% | No change | 2,850,588 | $6.8M |
| Chicago Capital, LLC | 0.18% | Reduce -11.9% | 2,620,454 | $6.3M |
| Rice Hall James & Associates, LLC | 0.36% | Reduce -2.6% | 2,580,780 | $6.2M |
| Private Management Group Inc. | 0.22% | Add +13.3% | 2,529,759 | $6.1M |
| Geode Capital Management, LLC | 0.00% | Add +4.6% | 2,461,050 | $5.9M |
| State Street Corp. | 0.00% | Reduce -7.4% | 1,921,283 | $4.6M |
| Villere St Denis J & Co. LLC | 0.34% | Reduce -1.9% | 1,437,944 | $3.5M |
| Murchinson Ltd. | 0.43% | Add +0.8% | 1,007,810 | $2.4M |
| Knott David M Jr | 1.11% | Reduce -10.3% | 982,336 | $2.4M |
| Northern Trust Corp. | 0.00% | Reduce -6.3% | 827,126 | $2.0M |
| Royce & Associates LP | 0.02% | Add +15.6% | 817,080 | $2.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.1% | 810,978 | $1.9M |
| Impax Asset Management Group plc | 0.01% | No change | 761,387 | $1.8M |
| Woodstock Corp. | 0.18% | Reduce -7.5% | 742,700 | $1.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -38.3% | 618,437 | $1.5M |
| Towerview LLC | 1.00% | Add +5.5% | 580,000 | $1.4M |
| Bank of America Corp. | 0.00% | Reduce -11.9% | 542,940 | $1.3M |
| Morgan Stanley | 0.00% | Add +12.8% | 498,664 | $1.2M |
| Isthmus Partners, LLC | 0.14% | Add +3.4% | 468,707 | $1.1M |
| Deutsche Bank AG | 0.00% | Reduce -30.9% | 432,859 | $1.0M |
| First Sabrepoint Capital Management LP | 0.41% | Reduce -71.9% | 410,000 | $984K |
| Boothbay Fund Management, LLC | 0.03% | Add +0.8% | 377,929 | $907K |
| Tang Capital Management LLC | 0.04% | No change | 300,000 | $720K |
| UBS Group AG | 0.00% | Reduce -13.1% | 266,371 | $639K |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.4% | 258,142 | $620K |
| TLS Advisors LLC | 1.35% | No change | 250,185 | $600K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -55.6% | 243,669 | $585K |
| Nuveen, LLC | 0.00% | — | 227,801 | $547K |
| Kent Lake PR LLC | 0.25% | Reduce -55.0% | 225,000 | $540K |
| Citadel Advisors | 0.00% | Reduce -55.7% | 194,024 | $466K |
| American Century Companies Inc. | 0.00% | Add +15.4% | 181,408 | $435K |
| Cornerstone Capital, Inc. | 0.04% | No change | 172,016 | $413K |
| Rhumbline Advisers | 0.00% | Reduce -1.5% | 151,565 | $364K |
| FMR LLC | 0.00% | Reduce -15.5% | 131,526 | $316K |
| ADAR1 Capital Management, LLC | 0.06% | Reduce -54.7% | 126,108 | $303K |
| Gsa Capital Partners LLP | 0.03% | Add +167.5% | 125,452 | $301K |
| Alliancebernstein L.P. | 0.00% | Reduce -1.1% | 119,392 | $287K |
| Susquehanna International Group, LLP | 0.00% | Add +137.3% | 118,038 | $283K |
| Northeast Financial Consultants Inc | 0.01% | No change | 110,996 | $266K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | New | 108,111 | $259K |
| Barclays PLC | 0.00% | Reduce -35.7% | 105,613 | $253K |
| Intech Investment Management LLC | 0.00% | Add +66.8% | 102,572 | $246K |
| Mirabella Financial Services LLP | 0.01% | New | 100,381 | $241K |
| Invesco Ltd. | 0.00% | Add +0.1% | 93,701 | $225K |
| Jane Street Group, LLC | 0.00% | Add +26.3% | 80,778 | $194K |
| Citigroup Inc. | 0.00% | Reduce -8.7% | 71,560 | $172K |
| Wells Fargo & Company | 0.00% | Add +12.9% | 70,957 | $170K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.5% | 55,168 | $132K |
| XTX Topco Ltd | 0.01% | Add +3.3% | 53,484 | $128K |
| Connors Investor Services Inc. | 0.01% | Add +67.5% | 49,611 | $119K |
| Corebridge Financial, Inc. | 0.00% | Add +1.8% | 46,712 | $112K |
| Blair William & Co. | 0.00% | No change | 45,171 | $108K |
| Gallagher Fiduciary Advisors, LLC | 0.00% | Add +18.9% | 43,696 | $105K |
| Atria Investments, Inc | 0.00% | Add +19.4% | 43,563 | $105K |
| T. Rowe Price Associates Inc. | 0.00% | Add +2.9% | 39,317 | $95K |
| Henshaw Capital LLC | 0.00% | No change | 37,507 | $90K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +0.8% | 37,185 | $89K |
| MetLife Investment Management, LLC | 0.00% | Reduce -24.4% | 36,627 | $88K |
| HRT Financial LP | 0.00% | Add +41.8% | 34,647 | $83K |
| SG Americas Securities, LLC | 0.00% | Reduce -22.3% | 31,553 | $76K |
| Ameriprise Financial Inc. | 0.00% | Reduce -23.6% | 29,310 | $70K |
| Legato Capital Management LLC | 0.01% | Reduce -5.2% | 28,719 | $69K |
| Voya Investment Management LLC | 0.00% | Reduce -11.2% | 27,763 | $67K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 26,753 | $64K |
| Renaissance Technologies | 0.00% | New | 26,600 | $64K |
| ProShare Advisors LLC | 0.00% | Reduce -17.7% | 26,100 | $63K |
| Mesirow Financial Investment Management, Inc. | 0.00% | No change | 30,764 | $59K |
| NJ State Employees Deferred Compensation Plan | 0.01% | No change | 24,500 | $59K |
| China Universal Asset Management Co., Ltd. | 0.01% | Reduce -5.4% | 24,273 | $58K |
| Bfsg, LLC | 0.01% | Add +8.4% | 22,200 | $53K |
| HighTower Advisors, LLC | 0.00% | Add +5.1% | 21,882 | $53K |
| Cibc World Markets Corp. | 0.00% | New | 21,157 | $51K |
| Sei Investments Co. | 0.00% | Reduce -53.1% | 20,402 | $49K |
| Sherbrooke Park Advisers LLC | 0.02% | Add +18.4% | 20,388 | $49K |
| LPL Financial LLC | 0.00% | Add +2.4% | 20,019 | $48K |
| Court Place Advisors, LLC | 0.02% | Reduce -15.1% | 20,004 | $48K |
| BBR Partners, LLC | 0.00% | No change | 20,000 | $48K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 18,614 | $45K |
| Captrust Financial Advisors | 0.00% | Add +1.5% | 16,837 | $40K |
| CWC Advisors, LLC. | 0.02% | Add +31.8% | 16,801 | $40K |
| Atom Investors LP | 0.00% | Reduce -0.3% | 16,367 | $39K |
| PNC Financial Services Group, Inc. | 0.00% | Add +279.4% | 16,276 | $39K |
| Thrive Wealth Management, LLC | 0.01% | No change | 16,081 | $39K |
| Squarepoint Ops LLC | 0.00% | Reduce -62.2% | 14,839 | $36K |
| PDT Partners, LLC | 0.00% | Reduce -73.8% | 14,709 | $35K |
| ExodusPoint Capital Management, LP | 0.00% | New | 14,315 | $34K |
| Public Employees Retirement Association of Colorado | 0.00% | No change | 14,264 | $34K |
| Victory Capital Management Inc. | 0.00% | Reduce -2.5% | 11,814 | $28K |
| New York State Common Retirement Fund | 0.00% | No change | 11,806 | $28K |
| HSBC Holdings PLC | 0.00% | Add +2.6% | 11,020 | $26K |
| Cerity Partners LLC | 0.00% | New | 10,693 | $26K |
| AQR Capital Management | 0.00% | New | 10,271 | $25K |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 0.00% | No change | 10,000 | $24K |
| BNP Paribas Financial Markets | 0.00% | Reduce -43.3% | 9,958 | $24K |
"% of holder's portfolio" is OABI's weight in each manager's 13F, not the share of Omniab Inc. the manager owns.