| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Monolithic Power Systems, Inc. (MPWR) has 10 insiders with recent SEC Form 4 filings, including 0 buys and 79 sells. MPWR is classified in the Semiconductors & Semiconductor Equipment industry within the Information Technology sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 954.5K | $1.58B | - | |
| VP | 201.6K | $332.77M | - | |
| VP | 162.2K | $267.67M | - | |
| CFO | 65.7K | $108.48M | - | |
| Dir | 28.0K | $46.16M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 11, 2025 | Hsing Michael49 | CEO | Sell | 40,000 | $958.39 | $38,335,721.29 | -0.2% | +26.3% | - | |
| Nov 5, 2025 | Sciammas Maurice48 | EVP, Ww Sales &Marketing | Sell | 200 | $986.81 | $197,362.00 | -13.3% | +16.5% | - | |
| Nov 3, 2025 | Blegen Theodore51 | EVP And CFO | Sell | 3,000 | $1,024.43 | $3,073,277.54 | -0.2% | +16.9% | - | |
| Oct 24, 2025 | Tseng Saria49 | EVP &General Counsel | Sell | 1,300 | $1,087.62 | $1,413,906.00 | -1.0% | +0.2% | - | |
| Oct 16, 2025 | Tseng Saria49 | EVP &General Counsel | Sell | 16,840 | $1,017.77 | $17,139,295.31 | -4.2% | -4.2% | - | |
| Oct 1, 2025 | Blegen Theodore51 | EVP And CFO | Sell | 3,000 | $913.22 | $2,739,647.60 | -0.6% | +0.9% | - | |
| Sep 18, 2025 | Martinez Carintia | Director | Sell | 1,400 | $900.00 | $1,260,000.00 | -61.5% | -0.6% | - | |
| Sep 18, 2025 | Tseng Saria49 | EVP &General Counsel | Sell | 14,510 | $914.45 | $13,268,669.50 | -9.1% | -0.6% | - | |
| Sep 2, 2025 | Blegen Theodore51 | EVP And CFO | Sell | 3,000 | $814.34 | $2,443,032.12 | -0.5% | +12.7% | - | |
| Aug 29, 2025 | Elmiger Eugen J | Director | Sell | 4,000 | $846.71 | $3,386,841.00 | -3.4% | +11.1% | - |