🕵️ Inhibrx Biosciences, Inc. ($INBX)
SEC insider & ownership activity, last 12 months · CIK 2007919 · every row links its SEC filing
Insider sell value was withheld pending verification over the last 12 months. 3 planned sales are pending, the largest $58K (Manhard Kimberly). No red-flag 8-Ks in the window.
Insider flow
3 buyers, $3.5M (8 lots) · 2 sellers, value withheld pending verification (8 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Mark Lappe | 6 | $2.6M | 0 | – | Sep 8, 2026 |
| Kayyem Jon Faiz | 1 | $568K | 0 | – | Sep 8, 2026 |
| Forsyth Douglas | 1 | $287K | 0 | – | Sep 8, 2026 |
| Manhard Kimberly | 0 | – | 5 | $279K | Sep 15, 2026 |
| Viking Global Investors LP | 0 | – | 3 | value withheld pending verification | Oct 7, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Perceptive Advisors LLC | 10.0% | 13G | Aug 14, 2026 | filing ↗ | |
| Joseph Edelman | 10.0% | 13G | Aug 14, 2026 | filing ↗ | |
| Perceptive Life Sciences Master Fund, Ltd. | 10.0% | 13G | Aug 14, 2026 | filing ↗ | |
| David C. Ott | 10.0% | 13G | Feb 17, 2026 | filing ↗ | |
| Viking Global Investors LP | 9.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Viking Global Opportunities Parent GP LLC | 9.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Halvorsen Ole Andreas | 9.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Shabet Rose Sharon | 9.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Viking Global Opportunities GP LLC | 8.7% | 13G | Aug 14, 2026 | filing ↗ | |
| Viking Global Opportunities Portfolio GP LLC | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Viking Global Opportunities Illiquid Investments Sub-Master LP | 8.4% | 13G | Aug 14, 2026 | filing ↗ | |
| Jon Faiz Kayyem | 7.9% | 13D | Jun 3, 2024 | filing ↗ | |
| Morgan Stanley | 7.9% | 13G | Feb 11, 2026 | filing ↗ | |
| Mark Lappe | 6.4% | 13D | Sep 12, 2024 | filing ↗ | |
| Morgan Stanley Capital Services LLC | 6.3% | 13G | Feb 11, 2026 | filing ↗ | |
| Bank of America Corp /DE/ | 5.9% | 13G | Aug 3, 2026 | filing ↗ | |
| Schonfeld Strategic Advisors LLC | 5.3% | 13G | Aug 14, 2026 | filing ↗ | |
| BlackRock, Inc. | 5.3% | 13G | Jan 21, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Manhard Kimberly | $53K | Sep 15, 2026 | filing ↗ |
| Manhard Kimberly | $55K | Sep 14, 2026 | filing ↗ |
| Manhard Kimberly | $56K | Sep 11, 2026 | filing ↗ |
| Manhard Kimberly | $58K | Sep 9, 2026 | filing ↗ |
| Manhard Kimberly | $58K | Sep 8, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Reg FD disclosure (7.01) | Sep 8, 2026 | filing ↗ |
| Other events (8.01) | Sep 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2026 | filing ↗ |
| Earnings (2.02) | Aug 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 13, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 15, 2026 | filing ↗ |
| New financial obligation (2.03) | Jul 15, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jul 15, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 15, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 15, 2026 | filing ↗ |
| Other events (8.01) | Jun 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 15, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 3, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 11, 2026 | filing ↗ |
| Other events (8.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 21, 2026 | filing ↗ |
| Other events (8.01) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Earnings (2.02) | Mar 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 19, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 16, 2025 | filing ↗ |
| Other events (8.01) | Dec 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 16, 2025 | filing ↗ |
| Earnings (2.02) | Nov 14, 2025 | filing ↗ |