Desq Long
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Cluster

INBX-2026-09-23-a3a74f592b4d

SEC FORM 4CLUSTER · 2 INSIDERS
$1,498,783.69

Inhibrx Biosciences, Inc. (INBX)

Purchase of 15,000 shares across 2 reporting persons.

Transaction Code P · Reporting Persons 2

  • Kayyem Jon FaizPurchase of 5,000 shares at $100 per share.$500,000.00
  • Lappe Mark, Chief Executive OfficerPurchase of 3,324 shares at $98.8659 per share.$328,630.25
  • Lappe Mark, Chief Executive OfficerPurchase of 2,176 shares at $99.5988 per share.$216,726.99
  • Lappe Mark, Chief Executive OfficerPurchase of 1,500 shares at $98.8803 per share.$148,320.45
  • Lappe Mark, Chief Executive OfficerPurchase of 3,000 shares at $101.702 per share.$305,106.00

Surfaced by rule: 2 distinct insiders, open-market purchases, 7-day window — a deterministic filter, not a recommendation.

Traded Sep 23, 2026 · Disclosed Sep 28, 2026FILED +5 DAYS

Source: SEC Form 4 · 0001366268-26-000011 · filed 2026-09-23 · View filing →

Source: SEC Form 4 · 0001366074-26-000004 · filed 2026-09-28 · 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 2026-09-28. https://desqlong.com/cards/cluster-INBX-2026-09-23-a3a74f592b4d (retrieved 2026-09-29).