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, 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 |
|---|---|---|---|---|---|
| Swiss National Bank | 13,900 | $1.32M | 0.00% | −500−3.5% | Reduced |
| SummitTX Capital, L.P. | 15,251 | $1.45M | 0.04% | −122,570−88.9% | Reduced |
| Ratan Capital Management LP | 16,612 | $1.57M | 0.51% | +16,612 | New |
| Invesco Ltd. | 16,858 | $1.60M | 0.00% | −6,498−27.8% | Reduced |
| Susquehanna International Group, LLP | 17,272 | $1.64M | 0.00% | −80,601−82.4% | Reduced |
| Quantinno Capital Management LP | 17,396 | $1.65M | 0.00% | −308−1.7% | Reduced |
| Verition Fund Management LLC | 17,993 | $1.70M | 0.01% | +17,993 | New |
| XTX Topco Ltd | 18,363 | $1.74M | 0.02% | −1,763−8.8% | Reduced |
| Nuveen, LLC | 18,658 | $1.77M | 0.00% | +1,481+8.6% | Added |
| UBS Asset Management Americas Inc | 20,067 | $1.90M | 0.00% | +20,000+29,850.7% | Added |
| Opaleye Management Inc. | 20,291 | $1.92M | 0.17% | +20,291 | New |
| Wellington Management Group LLP | 21,421 | $2.03M | 0.00% | −4,364−16.9% | Reduced |
| Nicholas Investment Partners, LP | 21,443 | $2.03M | 0.11% | +21,443 | New |
| D. E. Shaw & Co., Inc. | 22,322 | $2.12M | 0.00% | −55,115−71.2% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 22,584 | $2.14M | 0.03% | 00.0% | Unchanged |
| EAM Investors, LLC | 23,077 | $2.19M | 0.19% | +23,077 | New |
| Russell Investments Group, Ltd. | 25,209 | $2.39M | 0.00% | +4,987+24.7% | Added |
| Point72 Asset Management, L.P. | 26,011 | $2.46M | 0.00% | +26,011 | New |
| Bank of New York Mellon Corp | 26,200 | $2.48M | 0.00% | +326+1.3% | Added |
| CI Private Wealth, LLC | 28,653 | $2.71M | 0.00% | −161−0.6% | Reduced |
| Charles Schwab Investment Management Inc | 28,678 | $2.72M | 0.00% | +3,007+11.7% | Added |
| Atom Investors LP | 29,594 | $2.80M | 0.25% | +3,089+11.7% | Added |
| Empyrean Capital Partners, LP | 30,000 | $2.84M | 0.10% | +30,000 | New |
| Hussman Strategic Advisors, Inc. | 31,500 | $2.98M | 0.69% | +31,500 | New |
| UBS Group AG | 35,019 | $3.32M | 0.00% | −13,118−27.3% | Reduced |
| ArrowMark Colorado Holdings LLC | 35,176 | $3.33M | 0.14% | 00.0% | Unchanged |
| Victory Capital Management Inc | 36,443 | $3.45M | 0.00% | +25,519+233.6% | Added |
| Western Standard LLC | 47,000 | $4.45M | 1.51% | +47,000 | New |
| Voloridge Investment Management, LLC | 48,765 | $4.62M | 0.02% | +35,264+261.2% | Added |
| Voleon Capital Management LP | 58,358 | $5.53M | 0.10% | +19,053+48.5% | Added |
| BNP Paribas Arbitrage, SA | 59,841 | $5.67M | 0.00% | +27,302+83.9% | Added |
| Eventide Asset Management, LLC | 61,545 | $5.83M | 0.08% | +61,545 | New |
| Renaissance Technologies LLC | 62,201 | $5.89M | 0.01% | +12,018+23.9% | Added |
| Vanguard Fiduciary Trust Co | 69,920 | $6.62M | 0.00% | +5,598+8.7% | Added |
| Jefferies Financial Group Inc. | 73,416 | $6.96M | 0.06% | +34,443+88.4% | Added |
| Citigroup Inc | 75,721 | $7.17M | 0.00% | +13,205+21.1% | Added |
| Norges Bank | 90,300 | $8.56M | 0.00% | +90,300 | New |
| Northern Trust Corp | 100,957 | $9.57M | 0.00% | +7,261+7.7% | Added |
| Capitolis Liquid Global Markets LLC | 119,200 | $11.3M | 0.05% | −5,800−4.6% | Reduced |
| Vanguard Portfolio Management LLC | 122,557 | $11.6M | 0.00% | +50,097+69.1% | Added |
| First Trust Advisors LP | 128,424 | $12.2M | 0.01% | +128,424 | New |
| CDC Financial, Inc. | 140,130 | $13.3M | 10.20% | +15,600+12.5% | Added |
| Millennium Management LLC | 147,200 | $13.9M | 0.01% | −180,660−55.1% | Reduced |
| First Turn Management, LLC | 164,783 | $15.6M | 1.67% | +164,783 | New |
| Geode Capital Management, LLC | 256,175 | $24.3M | 0.00% | +24,666+10.7% | Added |
| Parkman Healthcare Partners LLC | 256,950 | $24.3M | 2.50% | +256,950 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 271,700 | $25.7M | 0.04% | +101,000+59.2% | Added |
| Sofinnova Investments, Inc. | 303,103 | $28.7M | 1.53% | −102,926−25.3% | Reduced |
| PFM Health Sciences, LP | 308,385 | $29.2M | 2.54% | +2,954+1.0% | Added |
| Goldman Sachs Group Inc | 338,176 | $32.0M | 0.00% | +243,102+255.7% | Added |
| Capital Research Global Investors | 363,050 | $34.4M | 0.00% | −29,797−7.6% | Reduced |
| Woodline Partners LP | 400,892 | $38.0M | 0.12% | +16,459+4.3% | Added |
| Vanguard Capital Management LLC | 492,477 | $46.7M | 0.00% | +6,055+1.2% | Added |
| State Street Corp | 640,458 | $60.7M | 0.00% | +89,613+16.3% | Added |
| Schonfeld Strategic Advisors LLC | 697,586 | $66.1M | 0.35% | +442,759+173.7% | Added |
| BlackRock, Inc. | 825,972 | $78.3M | 0.00% | +27,074+3.4% | Added |
| Bank of America Corp | 841,141 | $79.7M | 0.01% | +808,458+2,473.6% | Added |
| HighTower Advisors, LLC | 870,551 | $82.5M | 0.08% | +3510.0% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,123,929 | $106.5M | 0.30% | −313,776−21.8% | Reduced |
| Sanofi | 1,157,926 | $109.7M | 20.54% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 1,297,763 | $123.0M | 1.91% | −144,944−10.0% | Reduced |
| Morgan Stanley | 1,308,051 | $123.9M | 0.01% | +44,973+3.6% | Added |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −131,000−100.0% | Sold out |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −72,812−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −33,157−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −29,300−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −17,739−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −11,329−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −9,196−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −7,373−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −7,274−100.0% | Sold out |
| PSP Research LLC | 0 | $0 | 0.00% | −6,927−100.0% | Sold out |
| Harvest Investment Services, LLC | 0 | $0 | 0.00% | −6,413−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −5,531−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −5,512−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −5,242−100.0% | Sold out |
| Swiss Life Asset Management Ltd | 0 | $0 | 0.00% | −7,714−100.0% | Sold out |
| Moran Wealth Management, LLC | 0 | $0 | 0.00% | −3,163−100.0% | Sold out |
| Seven Fleet Capital Management LP | 0 | $0 | 0.00% | −2,482−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |