Inhibrx Biosciences Ownership | Who Owns Inhibrx Biosciences?
Inhibrx Biosciences Ownership Summary
Inhibrx Biosciences is owned by 81.88% institutional investors, 23.16% insiders. Perceptive advisors is the largest institutional shareholder, holding 9.32% of INBX shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.53% of its assets in Inhibrx Biosciences shares.
INBX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Inhibrx Biosciences | 81.88% | 23.16% | -5.04% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Perceptive advisors | 1.44M | 9.32% | $96.99M |
| Viking global investors lp | 1.44M | 9.28% | $96.66M |
| Morgan stanley | 1.26M | 8.16% | $84.92M |
| Sanofi | 1.16M | 7.48% | $77.85M |
| Hightower advisors | 870.20K | 5.62% | $58.50M |
| Blackrock funding, inc. /de | 798.90K | 5.16% | $53.71M |
| Vanguard group | 623.08K | 4.03% | $49.22M |
| State street | 550.85K | 3.56% | $37.03M |
| Sofinnova investments | 406.03K | 2.62% | $27.30M |
| Capital research global investors | 392.85K | 2.54% | $26.41M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Sanofi | 1.16M | 23.17% | $77.85M |
| Perceptive advisors | 1.44M | 1.90% | $96.99M |
| Pfm health sciences, lp | 305.43K | 1.87% | $20.53M |
| Sofinnova investments | 406.03K | 1.04% | $27.30M |
| Soleus capital management | 131.00K | 0.36% | $8.81M |
| Summittx capital | 137.82K | 0.29% | $9.27M |
| Viking global investors lp | 1.44M | 0.27% | $96.66M |
| Readystate asset management lp | 170.16K | 0.24% | $5.73M |
| Atom investors lp | 26.50K | 0.13% | $1.78M |
| Schonfeld strategic advisors | 254.83K | 0.12% | $17.13M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Woodline partners lp | 384.43K | 0.10% | 244.95K |
| State street | 550.85K | 0.00% | 175.88K |
| Readystate asset management lp | 170.16K | 0.24% | 143.32K |
| Norges bank | 133.30K | 0.00% | 133.30K |
| Soleus capital management | 131.00K | 0.36% | 106.00K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock | - | - | -2.75M |
| Ra capital management | - | - | -2.63M |
| Tcg crossover management | - | - | -1.75M |
| Alpine associates management | - | - | -1.05M |
| Bank of america corp /de/ | - | - | -741.59K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 133.30K | 0.00% | 133.30K | $10.53M |
| Vanguard fiduciary trust | 64.32K | 0.00% | 64.32K | $4.32M |
| Exoduspoint capital management, lp | 30.98K | 0.02% | 30.98K | $2.08M |
| Atom investors lp | 26.50K | 0.13% | 26.50K | $1.78M |
| Centiva capital, lp | 17.74K | 0.01% | 17.74K | $1.19M |
Sold Out
| Holder | Change |
|---|---|
| Financial gravity asset management | -2.00 |
| Jones financial companies lllp | -4.00 |
| Ifp advisors | -4.00 |
| Rockefeller capital management | -13.00 |
| Lindbrook capital | -17.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 143 | -7.74% | 12,680,697 | -0.76% | 81 | 1.20% | 76 | -10.59% | 34 | -15.00% |
| Dec 31, 2025 | 67 | -36.19% | 4,787,060 | -54.40% | 30 | 0.67% | 38 | -19.15% | 14 | -61.11% |
| Sep 30, 2025 | 40 | -54.02% | 3,943,558 | -62.21% | 25 | 0.56% | 11 | -64.52% | 14 | -58.82% |
| Jun 30, 2025 | 86 | -10.42% | 10,434,307 | -3.62% | 67 | 1.38% | 30 | 3.45% | 34 | -5.56% |
| Mar 31, 2025 | 9 | -91.59% | 2,655,100 | -76.21% | 18 | 0.35% | 2 | -95.74% | 2 | -93.55% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 369.64K | 2.53% | 5.80K |
| American Funds SMALLCAP World A | 353.29K | 2.42% | -26.93K |
| State Street® SPDR® S&P® Biotech ETF | 327.43K | 2.24% | -2.36K |
| iShares Russell 2000 ETF | 215.66K | 1.48% | 1.83K |
| Vanguard Institutional Extnd Mkt Idx Tr | 109.42K | 0.75% | 574.00 |
| HBM Healthcare Investments AG Ord | 100.00K | 0.68% | 100.00K |
| Fidelity Small Cap Index | 88.68K | 0.61% | 855.00 |
| iShares Russell 2000 Value ETF | 76.91K | 0.53% | 413.00 |
| iShares Biotechnology ETF | 75.41K | 0.52% | 1.15K |
| Kennedy Micro Cap | 72.81K | 0.50% | 1.32K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 07, 2025 | VIKING GLOBAL INVESTORS LP | - | Sell | $9.95M |
| Oct 07, 2025 | VIKING GLOBAL INVESTORS LP | - | Sell | $526.16K |
| Oct 07, 2025 | VIKING GLOBAL INVESTORS LP | - | Sell | $807.60K |
| Nov 20, 2024 | Kayyem Jon Faiz | - | Buy | $266.10K |
| Nov 19, 2024 | Kayyem Jon Faiz | - | Buy | $495.71K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | - |
| 2025 Q4 | - | 3 |
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q4 | 3 | - |
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