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 5 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 |
|---|---|---|---|---|---|
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,787,705 | $60.2M | 0.16% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 1,327,707 | $44.7M | 1.29% | +349,815+35.8% | Added |
| Sanofi | 1,157,926 | $39.0M | 14.98% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 871,759 | $29.4M | 0.03% | 00.0% | Unchanged |
| BlackRock, Inc. | 684,746 | $23.1M | 0.00% | −43,998−6.0% | Reduced |
| Vanguard Group Inc | 594,918 | $20.0M | 0.00% | −3,530−0.6% | Reduced |
| Morgan Stanley | 442,856 | $14.9M | 0.00% | +415,048+1,492.5% | Added |
| Sofinnova Investments, Inc. | 440,092 | $14.8M | 0.91% | −268,586−37.9% | Reduced |
| Woodline Partners LP | 336,590 | $11.3M | 0.05% | −326,278−49.2% | Reduced |
| Millennium Management LLC | 297,820 | $10.0M | 0.01% | +22,042+8.0% | Added |
| PFM Health Sciences, LP | 239,644 | $8.07M | 0.69% | −4,617−1.9% | Reduced |
| Caligan Partners LP | 236,383 | $7.96M | 1.10% | +236,383 | New |
| Geode Capital Management, LLC | 221,920 | $7.48M | 0.00% | −4,035−1.8% | Reduced |
| State Street Corp | 203,923 | $6.87M | 0.00% | −1,036−0.5% | Reduced |
| Readystate Asset Management LP | 170,158 | $5.73M | 0.28% | +143,324+534.1% | Added |
| Kennedy Capital Management, Inc. | 161,909 | $5.45M | 0.12% | −15,409−8.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 97,382 | $3.28M | 0.02% | −57,408−37.1% | Reduced |
| Northern Trust Corp | 92,657 | $3.12M | 0.00% | −5,028−5.1% | Reduced |
| Boothbay Fund Management, LLC | 78,812 | $2.65M | 0.07% | +50,582+179.2% | Added |
| Jane Street Group, LLC | 62,941 | $2.12M | 0.00% | +43,568+224.9% | Added |
| Citadel Advisors LLC | 57,194 | $1.93M | 0.00% | +57,194 | New |
| SummitTX Capital, L.P. | 54,143 | $1.82M | 0.08% | +54,143 | New |
| Bank of New York Mellon Corp | 50,125 | $1.69M | 0.00% | −353−0.7% | Reduced |
| Groupe la Francaise | 47,334 | $1.59M | 0.02% | −28,598−37.7% | Reduced |
| Slotnik Capital, LLC | 41,401 | $1.39M | 0.50% | −142,770−77.5% | Reduced |
| Wetherby Asset Management Inc | 40,656 | $1.37M | 0.06% | 00.0% | Unchanged |
| FMR LLC | 39,327 | $1.32M | 0.00% | +256+0.7% | Added |
| Russell Investments Group, Ltd. | 38,134 | $1.28M | 0.00% | +8,141+27.1% | Added |
| ArrowMark Colorado Holdings LLC | 35,176 | $1.18M | 0.02% | −1,030−2.8% | Reduced |
| Birchview Capital, LP | 31,698 | $1.07M | 0.81% | −412−1.3% | Reduced |
| Wellington Management Group LLP | 29,759 | $1.00M | 0.00% | +29,759 | New |
| Credit Industriel Et Commercial | 28,958 | $975.3K | 0.16% | −35,259−54.9% | Reduced |
| Acadian Asset Management LLC | 28,445 | $957.0K | 0.00% | −91,679−76.3% | Reduced |
| Charles Schwab Investment Management Inc | 27,793 | $936.1K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 27,242 | $917.5K | 0.00% | +27,242 | New |
| Goldman Sachs Group Inc | 25,966 | $874.5K | 0.00% | +14,877+134.2% | Added |
| Meridian Wealth Advisors, LLC | 25,000 | $842.0K | 0.12% | 00.0% | Unchanged |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 22,584 | $760.6K | 0.02% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 19,230 | $647.7K | 0.00% | −1,190−5.8% | Reduced |
| Bank of America Corp | 17,832 | $600.6K | 0.00% | +8,702+95.3% | Added |
| Nuveen, LLC | 17,584 | $592.2K | 0.00% | −3,630−17.1% | Reduced |
| Invesco Ltd. | 17,574 | $591.9K | 0.00% | +4,082+30.3% | Added |
| Mariner, LLC | 17,342 | $584.1K | 0.00% | +5,388+45.1% | Added |
| Franklin Resources Inc | 17,164 | $578.1K | 0.00% | −5,006−22.6% | Reduced |
| Bridgeway Capital Management, LLC | 16,500 | $555.7K | 0.01% | 00.0% | Unchanged |
| Acuta Capital Partners, LLC | 16,377 | $551.6K | 0.57% | +16,377 | New |
| Caption Management, LLC | 15,513 | $522.5K | 0.03% | −183,995−92.2% | Reduced |
| Ethic Inc. | 14,487 | $487.9K | 0.01% | −1,252−8.0% | Reduced |
| Rhumbline Advisers | 13,735 | $462.6K | 0.00% | −599−4.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 13,719 | $462.1K | 0.00% | +13,719 | New |
| Barclays PLC | 13,468 | $453.6K | 0.00% | −3,696−21.5% | Reduced |
| Quantinno Capital Management LP | 11,827 | $398.3K | 0.00% | +11,827 | New |
| D. E. Shaw & Co., Inc. | 11,553 | $389.1K | 0.00% | +11,553 | New |
| UBS Group AG | 9,426 | $317.5K | 0.00% | −36,558−79.5% | Reduced |
| Renaissance Technologies LLC | 8,400 | $282.9K | 0.00% | +8,400 | New |
| HighVista Strategies LLC | 7,626 | $256.8K | 0.06% | +7,626 | New |
| Wells Fargo & Company | 7,599 | $255.9K | 0.00% | +1,133+17.5% | Added |
| MetLife Investment Management | 7,425 | $250.1K | 0.00% | −258−3.4% | Reduced |
| Dynamic Technology Lab Private Ltd | 7,388 | $249.0K | 0.04% | +7,388 | New |
| Belvedere Trading LLC | 6,277 | $211.4K | 0.02% | +6,277 | New |
| Arrowstreet Capital, Limited Partnership | 6,003 | $202.2K | 0.00% | +6,003 | New |
| AQR Capital Management LLC | 5,998 | $202.0K | 0.00% | +5,998 | New |
| Citigroup Inc | 4,971 | $167.4K | 0.00% | +1,639+49.2% | Added |
| JPMorgan Chase & Co | 4,829 | $162.6K | 0.00% | −479−9.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 4,130 | $139.1K | 0.00% | −824−16.6% | Reduced |
| New York State Common Retirement Fund | 3,472 | $116.9K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 3,000 | $101.0K | 0.01% | +3,000 | New |
| Police & Firemen's Retirement System of New Jersey | 2,660 | $89.6K | 0.00% | −714−21.2% | Reduced |
| China Universal Asset Management Co., Ltd. | 2,539 | $85.5K | 0.01% | −368−12.7% | Reduced |
| Natixis | 2,000 | $67.4K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,886 | $63.5K | 0.00% | +789+71.9% | Added |
| Public Employees Retirement System of Ohio | 1,200 | $40.4K | 0.00% | +1,200 | New |
| Tower Research Capital LLC (TRC) | 1,043 | $35.1K | 0.00% | −1,173−52.9% | Reduced |
| Ameritas Investment Partners, Inc. | 853 | $28.7K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 768 | $25.9K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 625 | $21.1K | 0.00% | +380+155.1% | Added |
| California State Teachers Retirement System | 568 | $19.1K | 0.00% | +568 | New |
| Mirae Asset Global Investments Co., Ltd. | 560 | $18.9K | 0.00% | +1+0.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 498 | $16.8K | 0.00% | −239−32.4% | Reduced |
| Royal Bank of Canada | 466 | $16.0K | 0.00% | −929−66.6% | Reduced |
| Amalgamated Bank | 362 | $12.0K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 307 | $10.3K | 0.00% | −52−14.5% | Reduced |
| Wealthspire Advisors, LLC | 250 | $8.42K | 0.00% | +250 | New |
| FNY Investment Advisers, LLC | 250 | $8.00K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 217 | $7.31K | 0.00% | +217 | New |
| Versant Capital Management, Inc | 168 | $5.66K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 148 | $5.00K | 0.00% | +23+18.4% | Added |
| GAMMA Investing LLC | 139 | $4.68K | 0.00% | −16−10.3% | Reduced |
| Advisor Group Holdings, Inc. | 119 | $4.01K | 0.00% | +35+41.7% | Added |
| Optiver Holding B.V. | 114 | $3.84K | 0.00% | +114 | New |
| UBS Asset Management Americas Inc | 110 | $3.71K | 0.00% | +110 | New |
| SRS Capital Advisors, Inc. | 75 | $2.53K | 0.00% | +75 | New |
| The PNC Financial Services Group, Inc. | 41 | $1.38K | 0.00% | +10+32.3% | Added |
| EverSource Wealth Advisors, LLC | 40 | $1.35K | 0.00% | +18+81.8% | Added |
| Farther Finance Advisors, LLC | 38 | $1.28K | 0.00% | +37+3,700.0% | Added |
| Rothschild Investment LLC | 20 | $674 | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 13 | $438 | 0.00% | +13 | New |
| Nisa Investment Advisors, LLC | 11 | $370 | 0.00% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 8 | $269 | 0.00% | +8 | New |
| True Wealth Design, LLC | 4 | $135 | 0.00% | 00.0% | Unchanged |