Xiao Deming

EVP Xiao Deming sold 30,000 shares (~$49.6M) in single-day transaction; 6th consecutive sale at MPWR with mixed prior timing.

Xiao Deming, EVP of Global Operations, disposed of 30,000 shares in four separate transactions on the same day, raising approximately $49.6 million at prices near the 52-week high. This represents the sixth consecutive open-market sale at MPWR by this executive—a long stretch of one-directional activity with no offsetting purchases over a three-year window. His prior five sales at this ticker showed mixed timing results: three preceded stock declines (well-timed exits) while two were followed by appreciable gains (poorly-timed exits), indicating inconsistent judgment about when to exit. The company remains profitable with growing revenue, so the sale does not appear to stem from fundamental deterioration; the stock is trading near its 52-week high after rallying significantly over the past three months. The sheer volume and repeated sale pattern warrant monitoring, though the mixed track record on prior exits—combined with trading near recent highs—limits the degree of conviction this filing alone conveys.

EVP Xiao Deming sells 22,875 shares of MPWR for $26.8M at $1,171.16; retains 235,932 shares post-transaction

Xiao Deming, EVP of Global Operations at Monolithic Power Systems, sold 22,875 shares (22.9K shares) for $26,790,369.64 ($26.8M) on 2026-02-06 at $1,171.16, representing an 8.8% reduction in his holdings. The sale occurred near the 52-week high ($1,229.82), with the stock currently trading at $1,142.02, down 7.1% from that high. His prior sales at MPWR show mixed timing outcomes: 2 of 5 prior trades were well-timed at the 90-day mark, while his cross-ticker track record across 20 open-market sells shows a 20.00% well-timed rate at the 90-day mark and an average 30-day return of +16.0%. The company's fundamentals remain strong with annual revenue growth of +21.2%, a P/E of 28.87, and $178.3M in net income on $737.2M in latest quarterly revenue. The transaction's significance derives from the substantial dollar value, the insider's senior role, and the proximity to recent price peaks amid otherwise robust business performance.

EVP Xiao Deming sells 39,999 shares of MPWR at $780.00 for $31.2M; post-sale holdings 121.6K shares (-24.8%).

Xiao Deming, EVP of Global Operations, executed a substantial sale of 39,999 shares at $780.00 on 2025-08-01, reducing his holdings by 24.8%. The sale occurs with MPWR trading at $830.63 (current), within its 52-week range of $455.19–$947.16 and 12.3% below the 52-week high; the stock has appreciated 33.3% over the trailing 90 days and 9.5% over 30 days. Among his 5 prior trades at MPWR, his timing has been mixed: he achieved negative 90-day returns on 2 of 5 prior sales (well-timed exits before declines), while the other three showed positive post-sale returns. His cross-ticker track record of 20 prior sells shows an average 90-day return of 7.8% after sales (poorly-timed on aggregate), with a 20% well-timed rate. The magnitude of this sale—$31.2M and nearly one-quarter of his pre-transaction holdings—alongside MPWR's strong recent performance and the insider's mixed historical timing at this specific ticker, warrants investor attention to discern whether this represents a discrete capital allocation decision or a broader perspective on valuation at current prices.

EVP Xiao Deming sells 9,259 shares of MPWR at $950.00 (near 52-week high); holds 20,455 post-sale as stock trades -1.8% from peak.

Xiao Deming, EVP of Global Operations, executed a $8.8M sale at $950.00, just $3.16 below the 52-week high of $947.16, trimming his holdings by 31.2% to 20.5K shares. His timing relative to recent MPWR trades has been mixed: his cross-ticker track record shows a well-timed rate of 11.11% (lower than optimal), while his five prior MPWR-specific sales registered 0 of 3 measurable 90-day outcomes as well-timed, with an average 90-day return of +17.6%—meaning the stock typically rose after his prior sells at this ticker. The company's elevated P/E of 110.39 and modest annual revenue growth of +1.5% stand in contrast to strong near-term momentum (+26.5% over 90 days, +19.0% over 30 days), creating a tension between valuation and recent rally that warrants investor attention to broader market positioning and capital allocation signals from senior management.

EVP Xiao Deming sells 10,000 MPWR shares ($9.5M) near 52-week high; prior 5 trades at ticker show mixed post-sale returns.

Xiao Deming, EVP of Global Operations, sold 10,000 shares at $950.00 on 2024-08-22, reducing his holdings by -25.2% from 39,714 to 29,714 shares. The sale price was just 4.1% below the 52-week high of $947.16, and the stock has since declined to $908.53. Across his prior 5 trades at MPWR, measured post-sale returns have been inconsistent: three January 2024 sales were followed by 90-day gains (27.2%–27.8% at 30 days, 15.4%–15.9% at 90 days), while a May 2024 sale produced a 90-day gain of 17.6% and a July 2024 sale's 90-day outcome is not yet measurable. At the broader cross-ticker level, his historical track record shows a 90-day well-timed sell rate of 11.11% across 19 prior sales, indicating that most of his prior sales did not precede stock declines. The sale occurs while the stock trades at a P/E of 107.77 and the company has reported recent quarterly revenue of $507.4M and net income of $100.4M with only 1.5% annual revenue growth.

EVP Xiao Deming sold 3.2K MPWR shares at $831.58 on 2024-07-22 for $2.7M; holds 203.2K shares post-sale.

Xiao Deming, EVP of Global Operations, sold 3,205 shares of Monolithic Power Systems at $831.58, representing a 1.6% reduction in his 206,418-share position. The transaction occurred 11 days after a May 22 sell and is part of a pattern of multiple sales at this ticker: five prior MPWR trades, all sales, with zero well-timed outcomes at the 90-day mark. His broader cross-ticker history shows an 11.76% well-timed rate across 18 prior sells with average 90-day returns of +12.8%, suggesting his timing has historically missed gains on the downside. MPWR trades at $787.88 today, down 5.3% from the $831.58 sale price and down 11.4% from its 52-week high of $889.48. The company carries a P/E of 93.46 on $457.9M quarterly revenue and $92.5M net income. Without disclosed context or FLAGS indicating a scheduled trading plan, the recurring sale pattern at this ticker warrants observation against upcoming fundamentals or earnings."