In the last 12 months, insiders at Inhibrx Biosciences, Inc. ($INBX) filed 64 transactions with the SEC: 29 open-market purchases totaling $11,340,621 and 3 sales totaling $11,287,500. Net insider sentiment: net buying.
Inhibrx Biosciences, Inc. operates in the Biological products, (no disgnostic substances) industry (Life sciences sector).
Most Active Insiders
- VIKING GLOBAL INVESTORS LP (Not found) — 3 transactions totaling $11,287,500
- Kayyem Jon Faiz (Director) — 24 transactions totaling $7,448,224
- Lappe Mark (Chief Executive Officer) — 15 transactions totaling $2,415,312
- FORSYTH DOUGLAS (Director) — 5 transactions totaling $1,037,328
- Vuori Kristiina MD (Director) — 6 transactions totaling $299,957
View all SEC Filings for Inhibrx Biosciences, Inc. (INBX).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct. 7, 2025 | VIKING GLOBAL INVESTORS LP | Not found | S | Common Stock | 16315 | $32.25 | 67,018.0000 | 14,498,093 | 19.58% | 0.11% |
| Oct. 7, 2025 | VIKING GLOBAL INVESTORS LP | Not found | S | Common Stock | 308643 | $32.25 | 1,267,823.0000 | 14,498,093 | 19.58% | 2.13% |
| Oct. 7, 2025 | VIKING GLOBAL INVESTORS LP | Not found | S | Common Stock | 25042 | $32.25 | 102,864.0000 | 14,498,093 | 19.58% | 0.17% |
| May 28, 2025 | FORSYTH DOUGLAS | Director | A | Stock Option (right to buy) | 15000 | $0.00 | 15,000.0000 | 14,476,000 | 9999.99% | 0.10% |
| May 28, 2025 | Vuori Kristiina MD | Director | A | Stock Option (right to buy) | 15000 | $0.00 | 15,000.0000 | 14,476,000 | 9999.99% | 0.10% |
| May 28, 2025 | MANHARD KIMBERLY | Director | A | Stock Option (right to buy) | 15000 | $0.00 | 15,000.0000 | 14,476,000 | 9999.99% | 0.10% |
| May 28, 2025 | Kayyem Jon Faiz | Director | A | Stock Option (right to buy) | 15000 | $0.00 | 15,000.0000 | 14,476,000 | 9999.99% | 0.10% |
| April 1, 2025 | Matly David | President | A | Stock Option (right to buy) | 50000 | $0.00 | 50,000.0000 | 14,476,000 | 9999.99% | 0.35% |
| April 1, 2025 | Deck Kelly | Chief Financial Officer | A | Stock Option (right to buy) | 15000 | $0.00 | 15,000.0000 | 14,476,000 | 9999.99% | 0.10% |
| March 27, 2025 | Kayyem Jon Faiz | Director | G | Common Stock | 90000 | $0.00 | 1,059,046.0000 | 14,476,000 | 7.83% | 0.62% |
| Dec. 16, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 500000 | $0.00 | 1,149,046.0000 | 14,476,000 | 30.32% | 3.45% |
| Dec. 16, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 250000 | $0.00 | 1,149,046.0000 | 14,476,000 | 27.81% | 1.73% |
| Dec. 16, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 250000 | $0.00 | 1,149,046.0000 | 14,476,000 | 27.81% | 1.73% |
| Dec. 6, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 52000 | $0.00 | 1,149,046.0000 | 14,476,000 | 4.33% | 0.36% |
| Nov. 20, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 18750 | $14.19 | 139,686.0000 | 14,476,000 | 15.50% | 0.13% |
| Nov. 20, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 18750 | $14.19 | 139,686.0000 | 14,476,000 | 15.50% | 0.13% |
| Nov. 19, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 34843 | $14.23 | 120,936.0000 | 14,476,000 | 40.47% | 0.24% |
| Nov. 19, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 34843 | $14.23 | 120,936.0000 | 14,476,000 | 40.47% | 0.24% |
| Oct. 3, 2024 | Vuori Kristiina MD | Director | P | Common Stock | 6667 | $15.00 | 20,443.0000 | 14,476,000 | 48.40% | 0.05% |
| Sept. 12, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 26963 | $15.05 | 912,376.0000 | 14,476,000 | 3.05% | 0.19% |
| Sept. 16, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 13037 | $17.13 | 925,413.0000 | 14,476,000 | 1.43% | 0.09% |
| Sept. 10, 2024 | Vuori Kristiina MD | Director | P | Common Stock | 179 | $15.00 | 7,319.0000 | 14,476,000 | 2.51% | 0.00% |
| Sept. 11, 2024 | Vuori Kristiina MD | Director | P | Common Stock | 6457 | $15.07 | 13,776.0000 | 14,476,000 | 88.22% | 0.04% |
| Sept. 6, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 26000 | $15.29 | 867,413.0000 | 14,476,000 | 3.09% | 0.18% |
| Sept. 9, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 9500 | $15.21 | 876,913.0000 | 14,476,000 | 1.10% | 0.07% |
| Sept. 10, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 8500 | $15.19 | 885,413.0000 | 14,476,000 | 0.97% | 0.06% |
| Sept. 3, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 4712 | $16.31 | 841,413.0000 | 14,476,000 | 0.56% | 0.03% |
| Aug. 29, 2024 | Vuori Kristiina MD | Director | P | Common Stock | 7140 | $14.00 | 7,140.0000 | 14,476,000 | 9999.99% | 0.05% |
| Aug. 29, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 10000 | $14.03 | 811,413.0000 | 14,476,000 | 1.25% | 0.07% |
| Aug. 30, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 10000 | $14.02 | 821,413.0000 | 14,476,000 | 1.23% | 0.07% |
| Sept. 3, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 15288 | $15.66 | 836,701.0000 | 14,476,000 | 1.86% | 0.11% |
| Aug. 28, 2024 | MANHARD KIMBERLY | Director | P | Common Stock | 10000 | $13.98 | 10,000.0000 | 14,476,000 | 9999.99% | 0.07% |
| Aug. 23, 2024 | FORSYTH DOUGLAS | Director | P | Common Stock | 59812 | $14.07 | 224,564.0000 | 14,476,000 | 36.30% | 0.41% |
| Aug. 22, 2024 | FORSYTH DOUGLAS | Director | P | Common Stock | 15188 | $12.89 | 164,752.0000 | 14,476,000 | 10.15% | 0.10% |
| Aug. 21, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 12945 | $12.93 | 801,413.0000 | 14,476,000 | 1.64% | 0.09% |
| Aug. 20, 2024 | Lappe Mark | Chief Executive Officer | P | Common Stock | 27055 | $12.97 | 788,468.0000 | 14,476,000 | 3.55% | 0.19% |
| June 24, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 10000 | $0.00 | 1,093,860.0000 | 14,475,904 | 0.92% | 0.07% |
| June 24, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 10000 | $0.00 | 1,093,860.0000 | 14,475,904 | 0.92% | 0.07% |
| June 24, 2024 | Kayyem Jon Faiz | Director | G | Common Stock | 89050 | $0.00 | 1,093,860.0000 | 14,475,904 | 7.53% | 0.62% |
| June 5, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 49284 | $17.23 | 1,142,145.0000 | 14,475,904 | 4.51% | 0.34% |
| June 5, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 8265 | $17.89 | 1,150,410.0000 | 14,475,904 | 0.72% | 0.06% |
| June 4, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 65337 | $17.44 | 1,069,135.0000 | 14,475,904 | 6.51% | 0.45% |
| June 4, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 23726 | $18.24 | 1,092,861.0000 | 14,475,904 | 2.22% | 0.16% |
| June 3, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 80738 | $17.90 | 1,003,798.0000 | 14,475,904 | 8.75% | 0.56% |
| June 3, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 46792 | $16.61 | 923,060.0000 | 14,475,904 | 5.34% | 0.32% |
| May 31, 2024 | Kayyem Jon Faiz | Director | P | Common Stock | 70193 | $16.14 | 876,268.0000 | 14,475,904 | 8.71% | 0.48% |
| May 29, 2024 | Inhibrx, Inc. | Not found | J | Common Stock, par value $0.0001 per share | 13316140 | $0.00 | 1,157,926.0000 | 49,234,000 | 92.00% | 27.05% |
| May 29, 2024 | Lappe Mark | Chief Executive Officer | A | Common Stock | 125000 | $0.00 | 761,413.0000 | 49,234,000 | 19.64% | 0.25% |
| May 29, 2024 | Lappe Mark | Chief Executive Officer | A | Common Stock | 14865 | $0.00 | 761,413.0000 | 49,234,000 | 1.99% | 0.03% |
| May 30, 2024 | Lappe Mark | Chief Executive Officer | A | Stock Option (right to buy) | 300000 | $0.00 | 300,000.0000 | 14,475,904 | 9999.99% | 2.07% |
| May 29, 2024 | Kayyem Jon Faiz | Director | A | Common Stock | 806075 | $0.00 | 818,575.0000 | 49,234,000 | 6448.60% | 1.64% |
| May 29, 2024 | Kayyem Jon Faiz | Director | A | Common Stock | 6250 | $0.00 | 818,575.0000 | 49,234,000 | 0.77% | 0.01% |
| May 29, 2024 | Kayyem Jon Faiz | Director | A | Common Stock | 6250 | $0.00 | 818,575.0000 | 49,234,000 | 0.77% | 0.01% |
| May 30, 2024 | Kayyem Jon Faiz | Director | A | Stock Option (right to buy) | 30000 | $0.00 | 30,000.0000 | 14,475,904 | 9999.99% | 0.21% |
| May 29, 2024 | FORSYTH DOUGLAS | Director | A | Common Stock | 149564 | $0.00 | 149,564.0000 | 49,234,000 | 9999.99% | 0.30% |
| May 30, 2024 | FORSYTH DOUGLAS | Director | A | Stock Option (right to buy) | 30000 | $0.00 | 30,000.0000 | 14,475,904 | 9999.99% | 0.21% |
| May 29, 2024 | Eckelman Brendan P. | Chief Scientific Officer | A | Common Stock | 433888 | $0.00 | 473,888.0000 | 49,234,000 | 1084.72% | 0.88% |
| May 29, 2024 | Eckelman Brendan P. | Chief Scientific Officer | A | Common Stock | 40000 | $0.00 | 473,888.0000 | 49,234,000 | 9.22% | 0.08% |
| May 29, 2024 | Eckelman Brendan P. | Chief Scientific Officer | A | Common Stock | 40000 | $0.00 | 473,888.0000 | 49,234,000 | 9.22% | 0.08% |
| May 30, 2024 | Eckelman Brendan P. | Chief Scientific Officer | A | Stock Option (right to buy) | 175000 | $0.00 | 175,000.0000 | 14,475,904 | 9999.99% | 1.21% |
| May 30, 2024 | Deck Kelly | Chief Financial Officer | A | Stock Option (right to buy) | 175000 | $0.00 | 175,000.0000 | 14,475,904 | 9999.99% | 1.21% |
| May 30, 2024 | Vuori Kristiina MD | Director | A | Stock Option (right to buy) | 30000 | $0.00 | 30,000.0000 | 14,475,904 | 9999.99% | 0.21% |
| May 29, 2024 | Lappe Mark | Chief Executive Officer | A | Common Stock | 621548 | $0.00 | 761,413.0000 | 49,234,000 | 444.39% | 1.26% |
| May 30, 2024 | MANHARD KIMBERLY | Director | A | Stock Option (right to buy) | 30000 | $0.00 | 30,000.0000 | 14,475,904 | 9999.99% | 0.21% |