Insider Stock BuysAnalysis Archive

Lappe's Second Check in Weeks Lands at the Yearly Floor

Mark Lappe runs Inhibrx, a clinical-stage biotech building biologic drugs for cancers like chondrosarcoma, and he just put another $840,401 into his own stock. This is his second buy in a month, pushing his 30-day total past $1.8 million, and he's written 14 checks here in the past year. What makes this one worth your time: the stock is sitting at the bottom of its yearly range with RSI under 30, while the broad market is still holding above its short-term trend. That combination has the best record of any setup we track, and healthcare is one of the few corners catching a defensive bid right now. One honest note before you get excited. Past insider buys on this name have been a coin flip at 30 days and slightly negative at 90, so the CEO's conviction is carrying this, not the historical bounce.

The Filing

TickerINBX
CompanyInhibrx Biosciences, Inc.
InsiderMark Lappe, Chief Executive Officer
Buy amount$840,401
Filing dateOctober 14, 2026
ConvictionFavorable · 77/100
Setup typeContrarian Setup

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