# Inhibrx Biosciences, Inc. (INBX) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/inbx

> 19 non-derivative transactions: 14 purchases ($5.5M), 5 sales ($279K). CIK 2007919.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-28 | Lappe Mark | Director, Officer | P | 1500.0 | 98.88 | 737548.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000004/0001366074-26-000004-index.htm |
| 2026-09-28 | Lappe Mark | Director, Officer | P | 3000.0 | 101.7 | 740548.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000004/0001366074-26-000004-index.htm |
| 2026-09-25 | Lappe Mark | Director, Officer | P | 3324.0 | 98.87 | 733872.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000004/0001366074-26-000004-index.htm |
| 2026-09-25 | Lappe Mark | Director, Officer | P | 2176.0 | 99.6 | 736048.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000004/0001366074-26-000004-index.htm |
| 2026-09-23 | Kayyem Jon Faiz | Director | P | 5000.0 | 100.0 | 434360.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136626826000011/0001366268-26-000011-index.htm |
| 2026-09-16 | Kayyem Jon Faiz | Director | P | 5000.0 | 100.0 | 429360.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136626826000006/0001366268-26-000006-index.htm |
| 2026-09-15 | MANHARD KIMBERLY | Director | S | 500.0 | 105.05 | 7500.0 | https://www.sec.gov/Archives/edgar/data/2007919/000120209426000006/0001202094-26-000006-index.htm |
| 2026-09-14 | MANHARD KIMBERLY | Director | S | 500.0 | 110.26 | 8000.0 | https://www.sec.gov/Archives/edgar/data/2007919/000120209426000006/0001202094-26-000006-index.htm |
| 2026-09-11 | MANHARD KIMBERLY | Director | S | 500.0 | 111.78 | 8500.0 | https://www.sec.gov/Archives/edgar/data/2007919/000120209426000006/0001202094-26-000006-index.htm |
| 2026-09-09 | MANHARD KIMBERLY | Director | S | 500.0 | 115.8 | 9000.0 | https://www.sec.gov/Archives/edgar/data/2007919/000120209426000004/0001202094-26-000004-index.htm |
| 2026-09-08 | MANHARD KIMBERLY | Director | S | 500.0 | 115.14 | 9500.0 | https://www.sec.gov/Archives/edgar/data/2007919/000120209426000004/0001202094-26-000004-index.htm |
| 2026-09-08 | FORSYTH DOUGLAS | Director | P | 2500.0 | 114.65 | 227064.0 | https://www.sec.gov/Archives/edgar/data/2007919/000124080126000004/0001240801-26-000004-index.htm |
| 2026-09-08 | Lappe Mark | Director, Officer | P | 500.0 | 108.24 | 719648.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000002/0001366074-26-000002-index.htm |
| 2026-09-08 | Lappe Mark | Director, Officer | P | 9681.0 | 112.28 | 730548.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000002/0001366074-26-000002-index.htm |
| 2026-09-08 | Lappe Mark | Director, Officer | P | 1219.0 | 111.88 | 720867.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000002/0001366074-26-000002-index.htm |
| 2026-09-08 | Lappe Mark | Director, Officer | P | 5895.0 | 99.29 | 711443.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000002/0001366074-26-000002-index.htm |
| 2026-09-08 | Lappe Mark | Director, Officer | P | 6605.0 | 100.64 | 718048.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000002/0001366074-26-000002-index.htm |
| 2026-09-08 | Lappe Mark | Director, Officer | P | 1100.0 | 107.12 | 719148.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136607426000002/0001366074-26-000002-index.htm |
| 2026-09-08 | Kayyem Jon Faiz | Director | P | 5000.0 | 113.52 | 424360.0 | https://www.sec.gov/Archives/edgar/data/2007919/000136626826000004/0001366268-26-000004-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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