Inhibrx BiosciencesINBX
13F holders, Q3 2025 (September 30)102holders +14
25new positions
12sold out
6famous investors
$33.68avg. 13F price*
At the end of Q3 2025, 102 institutions reported holding Inhibrx Biosciences Inc. (INBX) in their 13F filings, up 14 from Q2 2025. 25 opened new positions and 12 sold out. The largest holders were Viking Global Investors ($60.2M), Perceptive Advisors LLC ($44.7M) and Sanofi ($39.0M). 6 famous investors held it, including Andreas Halvorsen (0.2% of Viking Global Investors's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Inhibrx Biosciences Inc.
- CUSIP
- 45720N103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 25 | $17.0M |
| Exits | 12 | $3.5M |
All 13F filers, Q2 2025 → Q3 2025: 1,575,334 shares bought and 1,513,623 shares sold, net +61,711 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 102 holders
| Viking Global Investors | 0.16% | No change | 1,787,705 | $60.2M |
| Perceptive Advisors LLC | 1.31% | Add +35.8% | 1,327,707 | $44.7M |
| Sanofi | 14.98% | No change | 1,157,926 | $39.0M |
| HighTower Advisors, LLC | 0.03% | No change | 871,759 | $29.4M |
| BlackRock, Inc. | 0.00% | Reduce -6.0% | 684,746 | $23.1M |
| Vanguard Group Inc. | 0.00% | Reduce -0.6% | 594,918 | $20.0M |
| Morgan Stanley | 0.00% | Add +1492.5% | 442,856 | $14.9M |
| Sofinnova Investments, Inc. | 0.91% | Reduce -37.9% | 440,092 | $14.8M |
| Woodline Partners LP | 0.05% | Reduce -49.2% | 336,590 | $11.3M |
| Millennium Management | 0.01% | Add +8.0% | 297,820 | $10.0M |
| PFM Health Sciences, LP | 0.70% | Reduce -1.9% | 239,644 | $8.1M |
| Caligan Partners LP | 1.10% | New | 236,383 | $8.0M |
| Geode Capital Management, LLC | 0.00% | Reduce -1.8% | 221,920 | $7.5M |
| State Street Corp. | 0.00% | Reduce -0.5% | 203,923 | $6.9M |
| Readystate Asset Management LP | 0.56% | Add +534.1% | 170,158 | $5.7M |
| Kennedy Capital Management LLC | 0.12% | Reduce -8.7% | 161,909 | $5.5M |
| Schonfeld Strategic Advisors LLC | 0.02% | Reduce -37.1% | 97,382 | $3.3M |
| Northern Trust Corp. | 0.00% | Reduce -5.2% | 92,657 | $3.1M |
| Boothbay Fund Management, LLC | 0.07% | Add +179.2% | 78,812 | $2.7M |
| Jane Street Group, LLC | 0.00% | Add +224.9% | 62,941 | $2.1M |
| Citadel Advisors | 0.00% | New | 57,194 | $1.9M |
| SummitTX Capital, L.P. | 0.08% | New | 54,143 | $1.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.7% | 50,125 | $1.7M |
| Groupe la Francaise | 0.02% | Reduce -37.7% | 47,334 | $1.6M |
| Slotnik Capital, LLC | 0.50% | Reduce -77.5% | 41,401 | $1.4M |
| Laird Norton Wetherby Wealth Management, LLC | 0.06% | No change | 40,656 | $1.4M |
| FMR LLC | 0.00% | Add +0.7% | 39,327 | $1.3M |
| Russell Investments Group, Ltd. | 0.00% | Add +27.1% | 38,134 | $1.3M |
| ArrowMark Colorado Holdings LLC | 0.02% | Reduce -2.8% | 35,176 | $1.2M |
| Birchview Capital, LP | 0.81% | Reduce -1.3% | 31,698 | $1.1M |
| Wellington Management Group LLP | 0.00% | New | 29,759 | $1.0M |
| Credit Industriel Et Commercial | 0.22% | Reduce -54.9% | 28,958 | $975K |
| Acadian Asset Management LLC | 0.00% | Reduce -76.3% | 28,445 | $957K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 27,793 | $936K |
| Marshall Wace, LLP | 0.00% | New | 27,242 | $918K |
| Goldman Sachs Group Inc. | 0.00% | Add +134.2% | 25,966 | $875K |
| Meridian Wealth Advisors, LLC | 0.12% | No change | 25,000 | $842K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0.02% | No change | 22,584 | $761K |
| Alliancebernstein L.P. | 0.00% | Reduce -5.8% | 19,230 | $648K |
| Bank of America Corp. | 0.00% | Add +95.3% | 17,832 | $601K |
| Nuveen, LLC | 0.00% | Reduce -17.1% | 17,584 | $592K |
| Invesco Ltd. | 0.00% | Add +30.3% | 17,574 | $592K |
| Mariner, LLC | 0.00% | Add +45.1% | 17,342 | $584K |
| Franklin Resources Inc. | 0.00% | Reduce -22.6% | 17,164 | $578K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 16,500 | $556K |
| Acuta Capital Partners, LLC | 0.57% | New | 16,377 | $552K |
| Caption Management, LLC | 0.03% | Reduce -92.2% | 15,513 | $522K |
| Ethic Inc. | 0.01% | Reduce -8.0% | 14,487 | $488K |
| Rhumbline Advisers | 0.00% | Reduce -4.2% | 13,735 | $463K |
| Jacobs Levy Equity Management, Inc. | 0.00% | New | 13,719 | $462K |
| Barclays PLC | 0.00% | Reduce -21.5% | 13,468 | $454K |
| Quantinno Capital Management LP | 0.00% | New | 11,827 | $398K |
| D. E. Shaw & Co. | 0.00% | New | 11,553 | $389K |
| UBS Group AG | 0.00% | Reduce -79.5% | 9,426 | $317K |
| Renaissance Technologies | 0.00% | New | 8,400 | $283K |
| HighVista Strategies LLC | 0.06% | New | 7,626 | $257K |
| Wells Fargo & Company | 0.00% | Add +17.5% | 7,599 | $256K |
| MetLife Investment Management, LLC | 0.00% | Reduce -3.4% | 7,425 | $250K |
| Dynamic Technology Lab Private Ltd | 0.04% | New | 7,388 | $249K |
| Belvedere Trading LLC | 0.02% | New | 6,277 | $211K |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 6,003 | $202K |
| AQR Capital Management | 0.00% | New | 5,998 | $202K |
| Citigroup Inc. | 0.00% | Add +49.2% | 4,971 | $167K |
| JPMorgan Chase & Co. | 0.00% | Reduce -9.0% | 4,829 | $163K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -16.6% | 4,130 | $139K |
| New York State Common Retirement Fund | 0.00% | No change | 3,472 | $117K |
| Lanark Financial, Inc. | 0.01% | New | 3,000 | $101K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Reduce -21.2% | 2,660 | $90K |
| China Universal Asset Management Co., Ltd. | 0.01% | Reduce -12.7% | 2,539 | $86K |
| Natixis | 0.00% | No change | 2,000 | $67K |
| BNP Paribas Financial Markets | 0.00% | Add +71.9% | 1,886 | $64K |
| Public Employees Retirement System of Ohio | 0.00% | New | 1,200 | $40K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -52.9% | 1,043 | $35K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 853 | $29K |
| Legal & General Group Plc | 0.00% | No change | 768 | $26K |
| Sterling Capital Management LLC | 0.00% | Add +155.1% | 625 | $21K |
| California State Teachers Retirement System | 0.00% | New | 568 | $19K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +0.2% | 560 | $19K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -32.4% | 498 | $17K |
| Royal Bank of Canada | 0.00% | Reduce -66.6% | 466 | $16K |
| Amalgamated Bank | 0.00% | No change | 362 | $12K |
| GF Fund Management Co. LTD. | 0.00% | Reduce -14.5% | 307 | $10K |
| Wealthspire Advisors, LLC | 0.00% | New | 250 | $8K |
| FNY Investment Advisers, LLC | 0.00% | No change | 250 | $8K |
| US Bancorp \de | 0.00% | New | 217 | $7K |
| Versant Capital Management, Inc | 0.00% | No change | 168 | $6K |
| Cwm, LLC | 0.00% | Add +18.4% | 148 | $5K |
| GAMMA Investing LLC | 0.00% | Reduce -10.3% | 139 | $5K |
| Osaic Holdings, Inc. | 0.00% | Add +41.7% | 119 | $4K |
| Optiver Holding B.V. | 0.00% | New | 114 | $4K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 110 | $4K |
| Arax Advisory Partners | 0.00% | New | 75 | $3K |
| PNC Financial Services Group, Inc. | 0.00% | Add +32.3% | 41 | $1K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +81.8% | 40 | $1K |
| Farther Finance Advisors, LLC | 0.00% | Add +3700.0% | 38 | $1K |
| Rothschild Investment LLC | 0.00% | No change | 20 | $674 |
| Rockefeller Capital Management L.P. | 0.00% | New | 13 | $438 |
| Nisa Investment Advisors, LLC | 0.00% | No change | 11 | $370 |
| Sunbelt Securities, Inc. | 0.00% | New | 8 | $269 |
| True Wealth Design, LLC | 0.00% | No change | 4 | $135 |
| Signaturefd, LLC | 0.00% | No change | 2 | $67 |
| Essential Partners LLC | 0.00% | No change | 2 | $67 |
"% of holder's portfolio" is INBX's weight in each manager's 13F, not the share of Inhibrx Biosciences Inc. the manager owns.