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Inhibrx Biosciences (INBX): CEO bought ~$208K

Mark Lappe, CEO at Inhibrx Biosciences, bought ~$208K of Inhibrx Biosciences shares.

~$208K
Approx. value · 2,470 sh @ $84.07
743K
Holds after · shares reported
Traded
Oct 14, 2026
Filed
Oct 14, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Sep 23, 2026Insider · First insider buy since Nov 2024Director purchased ~$500K of INBX shares in the open market
  2. Sep 25, 2026Insider · 1 personInsiders: 2 purchases (~$545K)
  3. Sep 28, 2026Insider · 1 personInsiders: 2 purchases (~$453K)
  4. Oct 14, 2026 · this disclosureInsider · Bought outside the usual windowCEO purchased ~$208K of INBX shares in the open market

What came next

  1. Oct 14, 2026Insider · 1 personInsiders: 5 purchases (~$641K)
  2. Oct 28, 20265% stakeBANK OF AMERICA CORP /DE/ reported a passive stake (13G) of 2.4%
  3. Nov 13, 2026Company filing · Form 8-K · ResultsReported its results
  4. Nov 13, 20265% stakeSchonfeld Strategic Advisors LLC reported a passive stake (13G) of 6.5%
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Inhibrx Biosciences

For Inhibrx Biosciences, OQRO holds 11 insider filings (SEC Form 4 or Form 144) and 1 fund holdings report (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its INBX page.

Other recent filings by Mark Lappe, Chief Executive Officer

The full history of Mark Lappe, Chief Executive Officer is on the profile page.

How this filing works

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Other disclosures at Inhibrx Biosciences

Everything OQRO holds on this company is on its INBX page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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