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, Q1 2026
Institutional positions in Inhibrx Biosciences, Inc. as of Mar 31, 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
- 135
- −1 vs. Q4 2025
- Shares held
- 12.7M
- +692.5K (+5.8%) vs. Q4 2025
- Total value
- $854.6M
- −$95.1M (−10.0%) vs. Q4 2025
- New holders
- 25
- 55 more added
- Sold out
- 26
- 34 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Inhibrx Biosciences, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Covestor Ltd | 1 | $0 | 0.00% | +1 | New |
| Essential Partners LLC | 2 | $134 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 4 | $269 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 5 | $337 | 0.00% | +5 | New |
| Sunbelt Securities, Inc. | 8 | $538 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 15 | $1.01K | 0.00% | +13+650.0% | Added |
| Fifth Third Bancorp | 21 | $1.41K | 0.00% | +21 | New |
| Rothschild Investment LLC | 22 | $1.48K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 38 | $2.55K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 41 | $2.76K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 55 | $3.70K | 0.00% | +55 | New |
| UBS Asset Management Americas Inc | 67 | $4.50K | 0.00% | +57+570.0% | Added |
| Advisor Group Holdings, Inc. | 70 | $4.71K | 0.00% | +2+2.9% | Added |
| Los Angeles Capital Management LLC | 98 | $6.59K | 0.00% | +60+157.9% | Added |
| Nisa Investment Advisors, LLC | 104 | $6.99K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 107 | $7.00K | 0.00% | −250−70.0% | Reduced |
| Torren Management, LLC | 110 | $7.39K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 159 | $10.7K | 0.00% | +4+2.6% | Added |
| GAMMA Investing LLC | 167 | $11.2K | 0.00% | +2+1.2% | Added |
| Versant Capital Management, Inc | 168 | $11.3K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 194 | $13.0K | 0.00% | −304−61.0% | Reduced |
| US Bancorp | 219 | $14.7K | 0.00% | +16+7.9% | Added |
| FNY Investment Advisers, LLC | 250 | $16.0K | 0.01% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 258 | $17.3K | 0.00% | +96+59.3% | Added |
| Sterling Capital Management LLC | 302 | $20.3K | 0.00% | −226−42.8% | Reduced |
| GF Fund Management Co. Ltd. | 326 | $21.9K | 0.00% | +41+14.4% | Added |
| California State Teachers Retirement System | 491 | $33.0K | 0.00% | −67−12.0% | Reduced |
| Ameritas Investment Partners, Inc. | 736 | $49.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 759 | $51.0K | 0.00% | +52+7.4% | Added |
| Optiver Holding B.V. | 962 | $64.7K | 0.00% | +30+3.2% | Added |
| Caption Management, LLC | 1,000 | $67.2K | 0.00% | +1,000 | New |
| Public Employees Retirement System of Ohio | 1,200 | $80.7K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,388 | $93.3K | 0.00% | +729+110.6% | Added |
| KLP Kapitalforvaltning AS | 1,600 | $107.6K | 0.00% | +1,600 | New |
| Barclays PLC | 1,667 | $112.1K | 0.00% | −20,212−92.4% | Reduced |
| Vanguard Investments Australia, Ltd. | 2,090 | $140.5K | 0.00% | +2,090 | New |
| Seven Fleet Capital Management LP | 2,482 | $166.9K | 0.05% | +2,482 | New |
| China Universal Asset Management Co., Ltd. | 2,581 | $173.5K | 0.01% | +211+8.9% | Added |
| Police & Firemen's Retirement System of New Jersey | 2,660 | $178.8K | 0.00% | 00.0% | Unchanged |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 3,026 | $203.4K | 0.00% | −75−2.4% | Reduced |
| Moran Wealth Management, LLC | 3,163 | $212.6K | 0.01% | +3,163 | New |
| Presidio Capital Management, LLC | 3,394 | $228.2K | 0.07% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 3,400 | $228.7K | 0.00% | +3,400 | New |
| Virtus Investment Advisers, Inc. | 3,425 | $230.3K | 0.06% | +82+2.5% | Added |
| New York State Common Retirement Fund | 3,472 | $233.4K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 3,800 | $255.5K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 3,800 | $255.5K | 0.02% | +800+26.7% | Added |
| Wells Fargo & Company | 3,938 | $264.8K | 0.00% | −6,875−63.6% | Reduced |
| Swiss Life Asset Management Ltd | 7,714 | $273.5K | 0.00% | +7,714 | New |
| Manufacturers Life Insurance Company, The | 4,228 | $284.2K | 0.00% | +1,443+51.8% | Added |
| JPMorgan Chase & Co | 4,932 | $295.3K | 0.00% | −12,127−71.1% | Reduced |
| Vanguard Asset Management, Ltd | 4,799 | $322.6K | 0.00% | +4,799 | New |
| Group One Trading, L.P. | 4,803 | $322.9K | 0.01% | −555−10.4% | Reduced |
| Legal & General Group Plc | 5,009 | $336.8K | 0.00% | +4,215+530.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 5,348 | $351.5K | 0.00% | +636+13.5% | Added |
| MetLife Investment Management | 5,240 | $352.3K | 0.00% | −80−1.5% | Reduced |
| Graham Capital Management, L.P. | 5,242 | $352.4K | 0.01% | +5,242 | New |
| Voya Investment Management LLC | 5,512 | $370.6K | 0.00% | −52−0.9% | Reduced |
| Mangrove Partners | 5,531 | $371.8K | 0.03% | +5,531 | New |
| Janney Montgomery Scott LLC | 6,406 | $431.0K | 0.00% | +911+16.6% | Added |
| Harvest Investment Services, LLC | 6,413 | $431.1K | 0.08% | +1,364+27.0% | Added |
| Bridgeway Capital Management, LLC | 6,500 | $437.0K | 0.01% | −2,500−27.8% | Reduced |
| Creative Planning | 6,618 | $444.9K | 0.00% | +910+15.9% | Added |
| PSP Research LLC | 6,927 | $465.7K | 0.33% | +538+8.4% | Added |
| Price T Rowe Associates Inc | 7,012 | $472.0K | 0.00% | +1,678+31.5% | Added |
| Profund Advisors LLC | 7,032 | $472.8K | 0.02% | +3,761+115.0% | Added |
| Aquatic Capital Management LLC | 7,274 | $489.0K | 0.01% | +7,274 | New |
| Tudor Investment Corp Et Al | 7,373 | $495.7K | 0.00% | +2,731+58.8% | Added |
| Vanguard Global Advisers, LLC | 7,402 | $497.6K | 0.00% | +7,402 | New |
| Deutsche Bank AG | 7,451 | $500.9K | 0.00% | +813+12.2% | Added |
| AQR Capital Management LLC | 8,380 | $563.4K | 0.00% | +879+11.7% | Added |
| Jane Street Group, LLC | 9,196 | $618.2K | 0.00% | −23,823−72.1% | Reduced |
| Ethic Inc. | 9,488 | $637.9K | 0.01% | −3,483−26.9% | Reduced |
| Meridian Wealth Advisors, LLC | 10,500 | $705.9K | 0.09% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 8,950 | $707.0K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 10,924 | $734.4K | 0.00% | −1,039−8.7% | Reduced |
| Jacobs Levy Equity Management, Inc | 11,329 | $761.6K | 0.00% | +1,188+11.7% | Added |
| Rhumbline Advisers | 11,433 | $768.6K | 0.00% | −20.0% | Reduced |
| Voloridge Investment Management, LLC | 13,501 | $907.7K | 0.00% | +13,501 | New |
| Swiss National Bank | 14,400 | $968.1K | 0.00% | +14,400 | New |
| Squarepoint Ops LLC | 15,639 | $1.05M | 0.00% | +12,241+360.2% | Added |
| Rafferty Asset Management, LLC | 15,761 | $1.06M | 0.00% | +7,179+83.7% | Added |
| Nuveen, LLC | 17,177 | $1.15M | 0.00% | +87+0.5% | Added |
| Quantinno Capital Management LP | 17,704 | $1.19M | 0.00% | +7,666+76.4% | Added |
| Centiva Capital, LP | 17,739 | $1.19M | 0.06% | +17,739 | New |
| XTX Topco Ltd | 20,126 | $1.35M | 0.02% | +11,105+123.1% | Added |
| Russell Investments Group, Ltd. | 20,222 | $1.36M | 0.00% | −556−2.7% | Reduced |
| Marshall Wace, LLP | 20,888 | $1.40M | 0.00% | −8,422−28.7% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 22,584 | $1.52M | 0.03% | −299−1.3% | Reduced |
| Invesco Ltd. | 23,356 | $1.57M | 0.00% | −89,040−79.2% | Reduced |
| Charles Schwab Investment Management Inc | 25,671 | $1.73M | 0.00% | −1,670−6.1% | Reduced |
| Wellington Management Group LLP | 25,785 | $1.73M | 0.00% | −2,608−9.2% | Reduced |
| Bank of New York Mellon Corp | 25,874 | $1.74M | 0.00% | −874−3.3% | Reduced |
| Atom Investors LP | 26,505 | $1.78M | 0.13% | +26,505 | New |
| CI Private Wealth, LLC | 28,814 | $1.94M | 0.00% | +8,371+40.9% | Added |
| Jump Financial, LLC | 29,300 | $1.97M | 0.03% | +25,796+736.2% | Added |
| ExodusPoint Capital Management, LP | 30,980 | $2.08M | 0.02% | +30,980 | New |
| BNP Paribas Arbitrage, SA | 32,539 | $2.19M | 0.00% | +17,689+119.1% | Added |
| Bank of America Corp | 32,683 | $2.20M | 0.00% | −36,436−52.7% | Reduced |
| Citadel Advisors LLC | 33,157 | $2.23M | 0.00% | +6,257+23.3% | Added |