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Mark Lappe, Chief Executive Officer at Inhibrx Biosciences, bought INBX on Sep 8, 2026

Data as of Oct 16

▲ BUY$136K1,219 shares at $111.88Mark Lappe Chief Executive OfficerINBX Inhibrx Biosciences, Inc.
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Traded
Sep 8, 2026
Disclosed
Sep 8, 2026
Filed
The same day

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Mark Lappe, Chief Executive Officer at Inhibrx Biosciences, bought INBX on Sep 8, 2026TRADEDDISCLOSED
INBXSimilar stocks (XLV — its sector index fund), rebased to INBX's price on the disclosure day
INBX since disclosure
−21.4%
Similar stocks (XLV) since disclosure
+5.7%
XLV — its sector index fund

Change in closing price from Sep 8, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▲ BUYMark Lappe Chief Executive OfficerINBX Inhibrx Biosciences, Inc.$1.1Mdisclosed Sep 8 · filed the same day
  2. ▲ BUYMark Lappe Chief Executive OfficerINBX Inhibrx Biosciences, Inc.$54.1Kdisclosed Sep 8 · filed the same day
  3. ▲ BUYMark Lappe Chief Executive OfficerINBX Inhibrx Biosciences, Inc.$585Kdisclosed Sep 8 · filed the same day
  4. ▲ BUYMark Lappe Chief Executive OfficerINBX Inhibrx Biosciences, Inc.$665Kdisclosed Sep 8 · filed the same day
  5. ▲ BUYMark Lappe Chief Executive OfficerINBX Inhibrx Biosciences, Inc.$118Kdisclosed Sep 8 · filed the same day

See every trade on INBX →