Witkowski Mark R

CEO Mark R Witkowski sold 100,000 shares of CNM at $64.08; post-transaction holds 35,847 shares (-73.6%)

CEO Mark R Witkowski executed a substantial open-market sale of 100,000 shares for $6,408,210.00 on 2025-08-18, reducing his direct holdings by 73.6% to 35,847 shares. The sale occurred near the 52-week high ($65.77), with the stock subsequently trading at $63.97 (current price). His cross-ticker track record shows 8 prior sales with a 90-day well-timed rate of 33.33%, while at CNM specifically, 2 of 3 measurable prior sales generated negative 90-day returns, indicating moderate prior timing success at this ticker. The company's fundamentals remain solid with $1.9B revenue, $100.0M net income, and 11.0% annual revenue growth, though the P/E of 29.89 reflects elevated valuation. Given the derivative-conversion flag, the reported 35,847 post-transaction holdings represent only Table I (common stock); the insider's actual total position may be larger due to unreported derivative securities.

CEO Witkowski sells 100,000 CNM shares for $6.1M at $61.26 blended avg; retains 35.8K shares post-transaction.

Mark R Witkowski, Chief Executive Officer, executed two separate open-market sales on 2025-07-17 totaling 100,000 shares (100.0K shares) for $6,126,387.75, reducing his holdings from 135.8K to 35.8K shares (-73.6% reduction). The trades occurred at $61.12 and $61.63, with a blended average of $61.26, just below the current price of $62.93. Witkowski's same-ticker history at CNM shows a mixed timing pattern: of his 5 prior sells, only 2 were well-timed at the 90-day mark, with outcomes ranging from -20.2% (May 2024) to +31.5% (November 2023). CNM's fundamentals show revenue of $1,911,000,000.00 with annual growth of +11.0%, a P/E of 29.41, and the stock is at its 52-week high of $62.93 after a 30-day gain of +10.3%. The significant reduction in direct holdings, combined with the timing near the year-to-date peak and the executive's mixed historical timing at this ticker, warrants monitoring as context for potential forward performance.