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, Q2 2026
Institutional positions in Inhibrx Biosciences, Inc. as of Jun 30, 2026. 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
- 162
- +30 vs. Q1 2026
- Shares held
- 14.3M
- +1.62M (+12.8%) vs. Q1 2026
- Total value
- $1.36B
- +$503.3M (+58.9%) vs. Q1 2026
- New holders
- 51
- 56 more added
- Sold out
- 21
- 39 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Inhibrx Biosciences, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 1,308,051 | $123.9M | 0.01% | +44,973+3.6% | Added |
| Perceptive Advisors LLC | 1,297,763 | $123.0M | 1.91% | −144,944−10.0% | Reduced |
| Sanofi | 1,157,926 | $109.7M | 20.54% | 00.0% | Unchanged |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,123,929 | $106.5M | 0.30% | −313,776−21.8% | Reduced |
| HighTower Advisors, LLC | 870,551 | $82.5M | 0.08% | +3510.0% | Added |
| Bank of America Corp | 841,141 | $79.7M | 0.01% | +808,458+2,473.6% | Added |
| BlackRock, Inc. | 825,972 | $78.3M | 0.00% | +27,074+3.4% | Added |
| Schonfeld Strategic Advisors LLC | 697,586 | $66.1M | 0.35% | +442,759+173.7% | Added |
| State Street Corp | 640,458 | $60.7M | 0.00% | +89,613+16.3% | Added |
| Vanguard Capital Management LLC | 492,477 | $46.7M | 0.00% | +6,055+1.2% | Added |
| Woodline Partners LP | 400,892 | $38.0M | 0.12% | +16,459+4.3% | Added |
| Capital Research Global Investors | 363,050 | $34.4M | 0.00% | −29,797−7.6% | Reduced |
| Goldman Sachs Group Inc | 338,176 | $32.0M | 0.00% | +243,102+255.7% | Added |
| PFM Health Sciences, LP | 308,385 | $29.2M | 2.54% | +2,954+1.0% | Added |
| Sofinnova Investments, Inc. | 303,103 | $28.7M | 1.53% | −102,926−25.3% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 271,700 | $25.7M | 0.04% | +101,000+59.2% | Added |
| Parkman Healthcare Partners LLC | 256,950 | $24.3M | 2.50% | +256,950 | New |
| Geode Capital Management, LLC | 256,175 | $24.3M | 0.00% | +24,666+10.7% | Added |
| First Turn Management, LLC | 164,783 | $15.6M | 1.67% | +164,783 | New |
| Millennium Management LLC | 147,200 | $13.9M | 0.01% | −180,660−55.1% | Reduced |
| CDC Financial, Inc. | 140,130 | $13.3M | 10.20% | +15,600+12.5% | Added |
| First Trust Advisors LP | 128,424 | $12.2M | 0.01% | +128,424 | New |
| Vanguard Portfolio Management LLC | 122,557 | $11.6M | 0.00% | +50,097+69.1% | Added |
| Capitolis Liquid Global Markets LLC | 119,200 | $11.3M | 0.05% | −5,800−4.6% | Reduced |
| Northern Trust Corp | 100,957 | $9.57M | 0.00% | +7,261+7.7% | Added |
| Norges Bank | 90,300 | $8.56M | 0.00% | +90,300 | New |
| Citigroup Inc | 75,721 | $7.17M | 0.00% | +13,205+21.1% | Added |
| Jefferies Financial Group Inc. | 73,416 | $6.96M | 0.06% | +34,443+88.4% | Added |
| Vanguard Fiduciary Trust Co | 69,920 | $6.62M | 0.00% | +5,598+8.7% | Added |
| Renaissance Technologies LLC | 62,201 | $5.89M | 0.01% | +12,018+23.9% | Added |
| Eventide Asset Management, LLC | 61,545 | $5.83M | 0.08% | +61,545 | New |
| BNP Paribas Arbitrage, SA | 59,841 | $5.67M | 0.00% | +27,302+83.9% | Added |
| Voleon Capital Management LP | 58,358 | $5.53M | 0.10% | +19,053+48.5% | Added |
| Voloridge Investment Management, LLC | 48,765 | $4.62M | 0.02% | +35,264+261.2% | Added |
| Western Standard LLC | 47,000 | $4.45M | 1.51% | +47,000 | New |
| Victory Capital Management Inc | 36,443 | $3.45M | 0.00% | +25,519+233.6% | Added |
| ArrowMark Colorado Holdings LLC | 35,176 | $3.33M | 0.14% | 00.0% | Unchanged |
| UBS Group AG | 35,019 | $3.32M | 0.00% | −13,118−27.3% | Reduced |
| Hussman Strategic Advisors, Inc. | 31,500 | $2.98M | 0.69% | +31,500 | New |
| Empyrean Capital Partners, LP | 30,000 | $2.84M | 0.10% | +30,000 | New |
| Atom Investors LP | 29,594 | $2.80M | 0.25% | +3,089+11.7% | Added |
| Charles Schwab Investment Management Inc | 28,678 | $2.72M | 0.00% | +3,007+11.7% | Added |
| CI Private Wealth, LLC | 28,653 | $2.71M | 0.00% | −161−0.6% | Reduced |
| Bank of New York Mellon Corp | 26,200 | $2.48M | 0.00% | +326+1.3% | Added |
| Point72 Asset Management, L.P. | 26,011 | $2.46M | 0.00% | +26,011 | New |
| Russell Investments Group, Ltd. | 25,209 | $2.39M | 0.00% | +4,987+24.7% | Added |
| EAM Investors, LLC | 23,077 | $2.19M | 0.19% | +23,077 | New |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 22,584 | $2.14M | 0.03% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 22,322 | $2.12M | 0.00% | −55,115−71.2% | Reduced |
| Nicholas Investment Partners, LP | 21,443 | $2.03M | 0.11% | +21,443 | New |
| Wellington Management Group LLP | 21,421 | $2.03M | 0.00% | −4,364−16.9% | Reduced |
| Opaleye Management Inc. | 20,291 | $1.92M | 0.17% | +20,291 | New |
| UBS Asset Management Americas Inc | 20,067 | $1.90M | 0.00% | +20,000+29,850.7% | Added |
| Nuveen, LLC | 18,658 | $1.77M | 0.00% | +1,481+8.6% | Added |
| XTX Topco Ltd | 18,363 | $1.74M | 0.02% | −1,763−8.8% | Reduced |
| Verition Fund Management LLC | 17,993 | $1.70M | 0.01% | +17,993 | New |
| Quantinno Capital Management LP | 17,396 | $1.65M | 0.00% | −308−1.7% | Reduced |
| Susquehanna International Group, LLP | 17,272 | $1.64M | 0.00% | −80,601−82.4% | Reduced |
| Invesco Ltd. | 16,858 | $1.60M | 0.00% | −6,498−27.8% | Reduced |
| Ratan Capital Management LP | 16,612 | $1.57M | 0.51% | +16,612 | New |
| SummitTX Capital, L.P. | 15,251 | $1.45M | 0.04% | −122,570−88.9% | Reduced |
| Swiss National Bank | 13,900 | $1.32M | 0.00% | −500−3.5% | Reduced |
| Franklin Resources Inc | 13,343 | $1.26M | 0.00% | −20,864−61.0% | Reduced |
| SG Americas Securities, LLC | 12,466 | $1.18M | 0.00% | +12,466 | New |
| Rhumbline Advisers | 12,056 | $1.14M | 0.00% | +623+5.4% | Added |
| AQR Capital Management LLC | 11,247 | $1.07M | 0.00% | +2,867+34.2% | Added |
| Rafferty Asset Management, LLC | 11,148 | $1.06M | 0.00% | −4,613−29.3% | Reduced |
| Toroso Investments, LLC | 10,170 | $963.6K | 0.00% | +10,170 | New |
| Tema ETFs LLC | 10,170 | $963.6K | 0.03% | +10,170 | New |
| Janney Montgomery Scott LLC | 9,787 | $927.0K | 0.00% | +3,381+52.8% | Added |
| Deutsche Bank AG | 9,579 | $907.6K | 0.00% | +2,128+28.6% | Added |
| Wells Fargo & Company | 9,563 | $906.1K | 0.00% | +5,625+142.8% | Added |
| Ethic Inc. | 9,345 | $885.4K | 0.01% | −143−1.5% | Reduced |
| Marshall Wace, LLP | 8,800 | $833.8K | 0.00% | −12,088−57.9% | Reduced |
| Meridian Wealth Advisors, LLC | 8,500 | $805.4K | 0.09% | −2,000−19.0% | Reduced |
| Nomura Holdings Inc | 8,000 | $758.0K | 0.00% | +8,000 | New |
| Price T Rowe Associates Inc | 7,812 | $741.0K | 0.00% | +800+11.4% | Added |
| California State Teachers Retirement System | 7,747 | $734.0K | 0.00% | +7,256+1,477.8% | Added |
| Brevan Howard Capital Management LP | 7,649 | $724.7K | 0.01% | +7,649 | New |
| Vanguard Global Advisers, LLC | 7,402 | $701.3K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 9,650 | $648.8K | 0.00% | +700+7.8% | Added |
| Squarepoint Ops LLC | 6,543 | $619.9K | 0.00% | −9,096−58.2% | Reduced |
| Creative Planning | 6,514 | $617.2K | 0.00% | −104−1.6% | Reduced |
| New York State Common Retirement Fund | 6,326 | $599.4K | 0.00% | +2,854+82.2% | Added |
| Platinum Investment Management Ltd | 6,146 | $582.3K | 0.14% | +6,146 | New |
| Cannon Global Investment Management, LLC | 5,900 | $559.0K | 1.68% | +5,900 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 5,675 | $538.7K | 0.00% | +327+6.1% | Added |
| MetLife Investment Management | 5,638 | $534.2K | 0.00% | +398+7.6% | Added |
| Profund Advisors LLC | 5,620 | $532.5K | 0.01% | −1,412−20.1% | Reduced |
| ExodusPoint Capital Management, LP | 5,612 | $531.7K | 0.00% | −25,368−81.9% | Reduced |
| Qube Research & Technologies Ltd | 5,378 | $509.6K | 0.00% | +5,378 | New |
| JPMorgan Chase & Co | 5,260 | $502.3K | 0.00% | +328+6.7% | Added |
| Legal & General Group Plc | 5,138 | $486.8K | 0.00% | +129+2.6% | Added |
| Persium Advisors, LLC | 4,875 | $461.9K | 0.30% | +4,875 | New |
| Dynamic Advisor Solutions LLC | 4,824 | $457.1K | 0.01% | +4,824 | New |
| Vanguard Asset Management, Ltd | 4,799 | $454.7K | 0.00% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 4,728 | $448.0K | 0.00% | +4,728 | New |
| Mariner, LLC | 4,569 | $432.9K | 0.00% | +4,569 | New |
| State Board of Administration of Florida Retirement System | 4,276 | $405.2K | 0.00% | +476+12.5% | Added |
| Manufacturers Life Insurance Company, The | 4,206 | $398.5K | 0.00% | −22−0.5% | Reduced |