INBX insider buying
Every open-market purchase of Inhibrx Biosciences, Inc. (INBX) stock by its officers, directors and major shareholders, from SEC Form 4 filings.
Bought, last 12 months$6.35M
Insiders buying (12m)3
Purchases on record7
Last purchase filedOct 14, 2026
In the last 12 months, 3 insiders of Inhibrx Biosciences, Inc. bought $6.35M of INBX stock on the open market in 7 reported purchases. The most recent was filed on Oct 14, 2026: Lappe Mark (Chief Executive Officer, Director) bought 10,040 shares at $84.56, worth $848.98K. The largest purchase on record here is $2.65M by Lappe Mark on Sep 8, 2026.
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| Filed | Insider | Value | Shares | Price | Stake | Trade | |
|---|---|---|---|---|---|---|---|
| Oct 14 | Lappe MarkChief Executive Officer, Director | $848.98K | 10,040 | $84.56 | +6% | Oct 14 | SEC |
| Sep 28 | Lappe MarkChief Executive Officer, Director | $998.79K | 10,000 | $99.88 | +1% | Sep 25 | SEC |
| Sep 23 | Kayyem Jon FaizDirector | $500K | 5,000 | $100.00 | +1% | Sep 23 | SEC |
| Sep 17 | Kayyem Jon FaizDirector | $500K | 5,000 | $100.00 | +1% | Sep 16 | SEC |
| Sep 8 | Kayyem Jon FaizDirector | $567.60K | 5,000 | $113.52 | +1% | Sep 8 | SEC |
| Sep 8 | Lappe MarkChief Executive Officer, Director | $2.65M | 25,000 | $105.81 | +4% | Sep 8 | SEC |
| Sep 8 | Forsyth DouglasDirector | $286.62K | 2,500 | $114.65 | +1% | Sep 8 | SEC |