Mark Lappe

Companies

• Inhibrx Biosciences, Inc.Board member May 24, 2024 to now¹
• Inhibrx Biosciences, Inc.Chief executive officer May 24, 2024 to now¹
• Inhibrx, Inc.Board member Aug 18, 2020 to May 30, 2024²
• Inhibrx, Inc.Chief executive officer Aug 18, 2020 to May 30, 2024²
• Repros TherapeuticsBoard member Oct 1, 2008 to May 22, 2009³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• IBInhibrx Biosciences, Inc. INBX54,865 shares⁴$4.9M at $89.06Sep 28, 2026
• IInhibrx, Inc.0 shares⁵May 30, 2024

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 28, 2026Bought 3,000 shares at $101.70 of Inhibrx Biosciences, Inc.⁴
• Sep 28, 2026Bought 1,500 shares at $98.88 of Inhibrx Biosciences, Inc.⁴
• Sep 25, 2026Bought 2,176 shares at $99.60 of Inhibrx Biosciences, Inc.⁴
• Sep 25, 2026Bought 3,324 shares at $98.87 of Inhibrx Biosciences, Inc.⁴
• Sep 8, 2026Bought 9,681 shares at $112.28 of Inhibrx Biosciences, Inc.⁶
• Sep 8, 2026Bought 1,219 shares at $111.88 of Inhibrx Biosciences, Inc.⁶
• Sep 8, 2026Bought 500 shares at $108.24 of Inhibrx Biosciences, Inc.⁶
• Sep 8, 2026Bought 1,100 shares at $107.12 of Inhibrx Biosciences, Inc.⁶
• Sep 8, 2026Bought 6,605 shares at $100.64 of Inhibrx Biosciences, Inc.⁶
• Sep 8, 2026Bought 5,895 shares at $99.29 of Inhibrx Biosciences, Inc.⁶
• Sep 16, 2024Bought 13,037 shares at $17.13 of Inhibrx Biosciences, Inc.⁷
• Sep 12, 2024Bought 26,963 shares at $15.05 of Inhibrx Biosciences, Inc.⁷
• Sep 10, 2024Bought 8,500 shares at $15.19 of Inhibrx Biosciences, Inc.⁸
• Sep 9, 2024Bought 9,500 shares at $15.21 of Inhibrx Biosciences, Inc.⁸
• Sep 6, 2024Bought 26,000 shares at $15.29 of Inhibrx Biosciences, Inc.⁸
• Sep 3, 2024Bought 4,712 shares at $16.31 of Inhibrx Biosciences, Inc.⁹
• Sep 3, 2024Bought 15,288 shares at $15.66 of Inhibrx Biosciences, Inc.⁹
• Aug 30, 2024Bought 10,000 shares at $14.02 of Inhibrx Biosciences, Inc.⁹
• Aug 29, 2024Bought 10,000 shares at $14.03 of Inhibrx Biosciences, Inc.⁹
• Aug 21, 2024Bought 12,945 shares at $12.93 of Inhibrx Biosciences, Inc.¹⁰
• Aug 20, 2024Bought 27,055 shares at $12.97 of Inhibrx Biosciences, Inc.¹⁰
• May 30, 2024Returned to company 59,462 shares at $30.00 of Inhibrx, Inc.⁵
• May 30, 2024Returned to company 500,000 shares at $30.00 of Inhibrx, Inc.⁵
• May 30, 2024Returned to company 2,486,192 shares at $30.00 of Inhibrx, Inc.⁵
• May 29, 2024Granted 14,865 shares of Inhibrx Biosciences, Inc.¹¹