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 |
|---|---|---|---|---|---|
| Bridgeway Capital Management, LLC | 4,000 | $379.0K | 0.01% | −2,500−38.5% | Reduced |
| Macquarie Group Ltd | 4,000 | $379.0K | 0.00% | +4,000 | New |
| NBC Securities, Inc. | 3,900 | $369.5K | 0.03% | +100+2.6% | Added |
| Virtus Investment Advisers, Inc. | 3,549 | $336.3K | 0.08% | +124+3.6% | Added |
| Legato Capital Management LLC | 3,542 | $335.6K | 0.03% | +3,542 | New |
| Marble Bar Asset Management LLP | 3,537 | $335.1K | 0.23% | +3,537 | New |
| NewEdge Wealth, LLC | 3,507 | $332.3K | 0.00% | +3,507 | New |
| Jupiter Topco LLC | 3,400 | $321.7K | 0.00% | +3,400 | New |
| Presidio Capital Management, LLC | 3,394 | $321.6K | 0.08% | 00.0% | Unchanged |
| Jain Global LLC | 3,298 | $312.5K | 0.00% | +3,298 | New |
| FORA Capital, LLC | 3,177 | $300.6K | 0.02% | +3,177 | New |
| Group One Trading, L.P. | 3,129 | $296.5K | 0.01% | −1,674−34.9% | Reduced |
| Nine Masts Capital Ltd | 3,000 | $284.3K | 0.03% | +3,000 | New |
| State of Wisconsin Investment Board | 2,946 | $279.1K | 0.00% | +2,946 | New |
| Commonwealth Equity Services, LLC | 2,818 | $267.0K | 0.00% | +2,818 | New |
| Police & Firemen's Retirement System of New Jersey | 2,660 | $252.0K | 0.00% | 00.0% | Unchanged |
| Harvest Management LLC | 2,600 | $246.3K | 0.11% | +2,600 | New |
| Barclays PLC | 2,347 | $222.4K | 0.00% | +680+40.8% | Added |
| China Universal Asset Management Co., Ltd. | 2,335 | $221.2K | 0.01% | −246−9.5% | Reduced |
| State of New Jersey Common Pension Fund D | 2,243 | $212.5K | 0.00% | +2,243 | New |
| Los Angeles Capital Management LLC | 2,188 | $207.3K | 0.00% | +2,090+2,132.7% | Added |
| Intech Investment Management LLC | 2,172 | $205.8K | 0.00% | +2,172 | New |
| Vanguard Investments Australia, Ltd. | 2,090 | $198.0K | 0.00% | 00.0% | Unchanged |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 2,045 | $193.8K | 0.00% | −981−32.4% | Reduced |
| KLP Kapitalforvaltning AS | 1,600 | $151.6K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 1,598 | $151.4K | 0.00% | +1,598 | New |
| State of Wyoming | 1,227 | $116.3K | 0.01% | +1,227 | New |
| FMR LLC | 1,134 | $107.5K | 0.00% | −51,674−97.9% | Reduced |
| Ameritas Investment Partners, Inc. | 863 | $81.8K | 0.00% | +127+17.3% | Added |
| Fulcrum Asset Management LLP | 818 | $78.1K | 0.01% | +818 | New |
| Quantbot Technologies LP | 721 | $68.3K | 0.00% | +721 | New |
| Mirae Asset Global Investments Co., Ltd. | 656 | $62.2K | 0.00% | −103−13.6% | Reduced |
| Optiver Holding B.V. | 576 | $54.6K | 0.00% | −386−40.1% | Reduced |
| Tower Research Capital LLC (TRC) | 440 | $41.7K | 0.00% | −948−68.3% | Reduced |
| Royal Bank of Canada | 386 | $36.0K | 0.00% | +279+260.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 367 | $34.8K | 0.00% | +173+89.2% | Added |
| GF Fund Management Co. Ltd. | 312 | $29.6K | 0.00% | −14−4.3% | Reduced |
| FNY Investment Advisers, LLC | 250 | $23.0K | 0.01% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 186 | $18.0K | 0.00% | +186 | New |
| GAMMA Investing LLC | 181 | $17.1K | 0.00% | +14+8.4% | Added |
| Versant Capital Management, Inc | 168 | $15.9K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 126 | $11.9K | 0.00% | +22+21.2% | Added |
| Torren Management, LLC | 110 | $10.4K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 78 | $7.39K | 0.00% | +8+11.4% | Added |
| SRS Capital Advisors, Inc. | 73 | $6.92K | 0.00% | +73 | New |
| US Bancorp | 62 | $5.88K | 0.00% | −157−71.7% | Reduced |
| Sterling Capital Management LLC | 61 | $5.78K | 0.00% | −241−79.8% | Reduced |
| The PNC Financial Services Group, Inc. | 41 | $3.88K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 27 | $2.56K | 0.00% | +5+22.7% | Added |
| Global Retirement Partners, LLC | 22 | $2.08K | 0.00% | +22 | New |
| Fifth Third Bancorp | 21 | $1.99K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 17 | $1.61K | 0.00% | −21−55.3% | Reduced |
| Signaturefd, LLC | 15 | $1.42K | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 13 | $1.23K | 0.00% | +13 | New |
| Allworth Financial LP | 8 | $758 | 0.00% | +3+60.0% | Added |
| Eastern Bank | 5 | $474 | 0.00% | +5 | New |
| Keating Financial Advisory Services, Inc. | 3 | $284 | 0.00% | +3 | New |
| Essential Partners LLC | 2 | $190 | 0.00% | 00.0% | Unchanged |
| Silver Grove Financial Group, Inc. | 2 | $190 | 0.00% | +2 | New |
| EverSource Wealth Advisors, LLC | 1 | $95 | 0.00% | −257−99.6% | Reduced |
| Larson Financial Group LLC | 1 | $95 | 0.00% | +1 | New |
| Covestor Ltd | 3 | $0 | 0.00% | +2+200.0% | 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 |