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Cluster

INBX-2026-09-08-e3996eeaba79

SEC FORM 4CLUSTER · 3 INSIDERS
$3,499,596.56

Inhibrx Biosciences, Inc. (INBX)

Purchase of 32,500 shares across 3 reporting persons.

Transaction Code P · Reporting Persons 3

  • FORSYTH DOUGLASPurchase of 2,500 shares at $114.6469 per share.$286,617.25
  • Lappe Mark, Chief Executive OfficerPurchase of 5,895 shares at $99.2948 per share.$585,342.85
  • Lappe Mark, Chief Executive OfficerPurchase of 6,605 shares at $100.6388 per share.$664,719.27
  • Lappe Mark, Chief Executive OfficerPurchase of 1,100 shares at $107.1239 per share.$117,836.29
  • Lappe Mark, Chief Executive OfficerPurchase of 500 shares at $108.235 per share.$54,117.50
  • Lappe Mark, Chief Executive OfficerPurchase of 1,219 shares at $111.8805 per share.$136,382.33
  • Lappe Mark, Chief Executive OfficerPurchase of 9,681 shares at $112.2819 per share.$1,087,001.07
  • Kayyem Jon FaizPurchase of 5,000 shares at $113.516 per share.$567,580.00

Surfaced by rule: 3 distinct insiders, open-market purchases, 7-day window — a deterministic filter, not a recommendation.

Traded Sep 8, 2026 · Disclosed Sep 8, 2026

Source: SEC Form 4 · 0001240801-26-000004 · filed 2026-09-08 · View filing →

Source: SEC Form 4 · 0001366074-26-000002 · filed 2026-09-08 · View filing →

Source: SEC Form 4 · 0001366268-26-000004 · filed 2026-09-08 · View filing →

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Composed from the Form 4 as filed with the SEC. Share counts, prices and dates are the filing's own; the disclosure lag is counted in business days from the transaction date to the filing date. What is a Form 4?

Cite this card

Desq Long. "Inhibrx Biosciences, Inc. (INBX)." Disclosed 2026-09-08. https://desqlong.com/cards/cluster-INBX-2026-09-08-e3996eeaba79 (retrieved 2026-09-26).