Inhibrx Biosciences, Inc.
INBX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0002007919
In the last 90 days, Inhibrx Biosciences, Inc. insiders filed 6 open-market purchases and 2 sales; 162 institutions reported holding it in 13F filings for Q2 2026, worth $1.36B in total; Viking Global Investors is the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in Inhibrx Biosciences, 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
- 102
- +13 vs. Q2 2025
- Shares held
- 10.5M
- +61.7K (+0.6%) vs. Q2 2025
- Total value
- $353.6M
- +$204.6M (+137.4%) vs. Q2 2025
- New holders
- 25
- 22 more added
- Sold out
- 12
- 35 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting INBX 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 | 162 | $1.36B |
| Q1 2026 | 135 | $854.6M |
| Q4 2025 | 138 | $1.01B |
| Q3 2025 | 102 | $353.6M |
| Q2 2025 | 89 | $148.9M |
| Q1 2025 | 92 | $151.0M |
| Q4 2024 | 101 | $171.9M |
| Q3 2024 | 96 | $139.3M |
| Q2 2024 | 88 | $137.9M |
| Q1 2024 | 126 | $1.34B |
| Q4 2023 | 126 | $1.54B |
| Q3 2023 | 111 | $716.1M |
| Q2 2023 | 107 | $935.2M |
| Q1 2023 | 108 | $691.6M |
| Q4 2022 | 116 | $886.0M |
| Q3 2022 | 102 | $512.2M |
| Q2 2022 | 100 | $297.3M |
| Q1 2022 | 99 | $548.0M |
| Q4 2021 | 101 | $1.01B |
| Q3 2021 | 66 | $681.6M |
| Q2 2021 | 61 | $538.8M |
| Q1 2021 | 55 | $326.3M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Inhibrx Biosciences, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Signaturefd, LLC | 2 | $67 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 2 | $67 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 4 | $135 | 0.00% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 8 | $269 | 0.00% | +8 | New |
| Nisa Investment Advisors, LLC | 11 | $370 | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 13 | $438 | 0.00% | +13 | New |
| Rothschild Investment LLC | 20 | $674 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 38 | $1.28K | 0.00% | +37+3,700.0% | Added |
| EverSource Wealth Advisors, LLC | 40 | $1.35K | 0.00% | +18+81.8% | Added |
| The PNC Financial Services Group, Inc. | 41 | $1.38K | 0.00% | +10+32.3% | Added |
| SRS Capital Advisors, Inc. | 75 | $2.53K | 0.00% | +75 | New |
| UBS Asset Management Americas Inc | 110 | $3.71K | 0.00% | +110 | New |
| Optiver Holding B.V. | 114 | $3.84K | 0.00% | +114 | New |
| Advisor Group Holdings, Inc. | 119 | $4.01K | 0.00% | +35+41.7% | Added |
| GAMMA Investing LLC | 139 | $4.68K | 0.00% | −16−10.3% | Reduced |
| CWM, LLC | 148 | $5.00K | 0.00% | +23+18.4% | Added |
| Versant Capital Management, Inc | 168 | $5.66K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 217 | $7.31K | 0.00% | +217 | New |
| FNY Investment Advisers, LLC | 250 | $8.00K | 0.00% | 00.0% | Unchanged |
| Wealthspire Advisors, LLC | 250 | $8.42K | 0.00% | +250 | New |
| GF Fund Management Co. Ltd. | 307 | $10.3K | 0.00% | −52−14.5% | Reduced |
| Amalgamated Bank | 362 | $12.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 466 | $16.0K | 0.00% | −929−66.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 498 | $16.8K | 0.00% | −239−32.4% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 560 | $18.9K | 0.00% | +1+0.2% | Added |
| California State Teachers Retirement System | 568 | $19.1K | 0.00% | +568 | New |
| Sterling Capital Management LLC | 625 | $21.1K | 0.00% | +380+155.1% | Added |
| Legal & General Group Plc | 768 | $25.9K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 853 | $28.7K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,043 | $35.1K | 0.00% | −1,173−52.9% | Reduced |
| Public Employees Retirement System of Ohio | 1,200 | $40.4K | 0.00% | +1,200 | New |
| BNP Paribas Arbitrage, SA | 1,886 | $63.5K | 0.00% | +789+71.9% | Added |
| Natixis | 2,000 | $67.4K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 2,539 | $85.5K | 0.01% | −368−12.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 2,660 | $89.6K | 0.00% | −714−21.2% | Reduced |
| NBC Securities, Inc. | 3,000 | $101.0K | 0.01% | +3,000 | New |
| New York State Common Retirement Fund | 3,472 | $116.9K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 4,130 | $139.1K | 0.00% | −824−16.6% | Reduced |
| JPMorgan Chase & Co | 4,829 | $162.6K | 0.00% | −479−9.0% | Reduced |
| Citigroup Inc | 4,971 | $167.4K | 0.00% | +1,639+49.2% | Added |
| AQR Capital Management LLC | 5,998 | $202.0K | 0.00% | +5,998 | New |
| Arrowstreet Capital, Limited Partnership | 6,003 | $202.2K | 0.00% | +6,003 | New |
| Belvedere Trading LLC | 6,277 | $211.4K | 0.02% | +6,277 | New |
| Dynamic Technology Lab Private Ltd | 7,388 | $249.0K | 0.04% | +7,388 | New |
| MetLife Investment Management | 7,425 | $250.1K | 0.00% | −258−3.4% | Reduced |
| Wells Fargo & Company | 7,599 | $255.9K | 0.00% | +1,133+17.5% | Added |
| HighVista Strategies LLC | 7,626 | $256.8K | 0.06% | +7,626 | New |
| Renaissance Technologies LLC | 8,400 | $282.9K | 0.00% | +8,400 | New |
| UBS Group AG | 9,426 | $317.5K | 0.00% | −36,558−79.5% | Reduced |
| D. E. Shaw & Co., Inc. | 11,553 | $389.1K | 0.00% | +11,553 | New |
| Quantinno Capital Management LP | 11,827 | $398.3K | 0.00% | +11,827 | New |
| Barclays PLC | 13,468 | $453.6K | 0.00% | −3,696−21.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 13,719 | $462.1K | 0.00% | +13,719 | New |
| Rhumbline Advisers | 13,735 | $462.6K | 0.00% | −599−4.2% | Reduced |
| Ethic Inc. | 14,487 | $487.9K | 0.01% | −1,252−8.0% | Reduced |
| Caption Management, LLC | 15,513 | $522.5K | 0.03% | −183,995−92.2% | Reduced |
| Acuta Capital Partners, LLC | 16,377 | $551.6K | 0.57% | +16,377 | New |
| Bridgeway Capital Management, LLC | 16,500 | $555.7K | 0.01% | 00.0% | Unchanged |
| Franklin Resources Inc | 17,164 | $578.1K | 0.00% | −5,006−22.6% | Reduced |
| Mariner, LLC | 17,342 | $584.1K | 0.00% | +5,388+45.1% | Added |
| Invesco Ltd. | 17,574 | $591.9K | 0.00% | +4,082+30.3% | Added |
| Nuveen, LLC | 17,584 | $592.2K | 0.00% | −3,630−17.1% | Reduced |
| Bank of America Corp | 17,832 | $600.6K | 0.00% | +8,702+95.3% | Added |
| Alliancebernstein L.P. | 19,230 | $647.7K | 0.00% | −1,190−5.8% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 22,584 | $760.6K | 0.02% | 00.0% | Unchanged |
| Meridian Wealth Advisors, LLC | 25,000 | $842.0K | 0.12% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 25,966 | $874.5K | 0.00% | +14,877+134.2% | Added |
| Marshall Wace, LLP | 27,242 | $917.5K | 0.00% | +27,242 | New |
| Charles Schwab Investment Management Inc | 27,793 | $936.1K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 28,445 | $957.0K | 0.00% | −91,679−76.3% | Reduced |
| Credit Industriel Et Commercial | 28,958 | $975.3K | 0.16% | −35,259−54.9% | Reduced |
| Wellington Management Group LLP | 29,759 | $1.00M | 0.00% | +29,759 | New |
| Birchview Capital, LP | 31,698 | $1.07M | 0.81% | −412−1.3% | Reduced |
| ArrowMark Colorado Holdings LLC | 35,176 | $1.18M | 0.02% | −1,030−2.8% | Reduced |
| Russell Investments Group, Ltd. | 38,134 | $1.28M | 0.00% | +8,141+27.1% | Added |
| FMR LLC | 39,327 | $1.32M | 0.00% | +256+0.7% | Added |
| Wetherby Asset Management Inc | 40,656 | $1.37M | 0.06% | 00.0% | Unchanged |
| Slotnik Capital, LLC | 41,401 | $1.39M | 0.50% | −142,770−77.5% | Reduced |
| Groupe la Francaise | 47,334 | $1.59M | 0.02% | −28,598−37.7% | Reduced |
| Bank of New York Mellon Corp | 50,125 | $1.69M | 0.00% | −353−0.7% | Reduced |
| SummitTX Capital, L.P. | 54,143 | $1.82M | 0.08% | +54,143 | New |
| Citadel Advisors LLC | 57,194 | $1.93M | 0.00% | +57,194 | New |
| Jane Street Group, LLC | 62,941 | $2.12M | 0.00% | +43,568+224.9% | Added |
| Boothbay Fund Management, LLC | 78,812 | $2.65M | 0.07% | +50,582+179.2% | Added |
| Northern Trust Corp | 92,657 | $3.12M | 0.00% | −5,028−5.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 97,382 | $3.28M | 0.02% | −57,408−37.1% | Reduced |
| Kennedy Capital Management, Inc. | 161,909 | $5.45M | 0.12% | −15,409−8.7% | Reduced |
| Readystate Asset Management LP | 170,158 | $5.73M | 0.28% | +143,324+534.1% | Added |
| State Street Corp | 203,923 | $6.87M | 0.00% | −1,036−0.5% | Reduced |
| Geode Capital Management, LLC | 221,920 | $7.48M | 0.00% | −4,035−1.8% | Reduced |
| Caligan Partners LP | 236,383 | $7.96M | 1.10% | +236,383 | New |
| PFM Health Sciences, LP | 239,644 | $8.07M | 0.69% | −4,617−1.9% | Reduced |
| Millennium Management LLC | 297,820 | $10.0M | 0.01% | +22,042+8.0% | Added |
| Woodline Partners LP | 336,590 | $11.3M | 0.05% | −326,278−49.2% | Reduced |
| Sofinnova Investments, Inc. | 440,092 | $14.8M | 0.91% | −268,586−37.9% | Reduced |
| Morgan Stanley | 442,856 | $14.9M | 0.00% | +415,048+1,492.5% | Added |
| Vanguard Group Inc | 594,918 | $20.0M | 0.00% | −3,530−0.6% | Reduced |
| BlackRock, Inc. | 684,746 | $23.1M | 0.00% | −43,998−6.0% | Reduced |
| HighTower Advisors, LLC | 871,759 | $29.4M | 0.03% | 00.0% | Unchanged |
| Sanofi | 1,157,926 | $39.0M | 14.98% | 00.0% | Unchanged |