| 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 90 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 24, 2025 | Lee Victor K50 | Director | Sell | 1,000 | $951.72 | $951,719.21 | -0.6% | +15.6% | - | |
| Dec 1, 2025 | Blegen Theodore51 | EVP And CFO | Sell | 3,000 | $908.21 | $2,724,623.44 | -0.4% | +23.1% | - | |
| Nov 26, 2025 | Tseng Saria49 | EVP &General Counsel | Sell | 20,000 | $926.47 | $18,529,315.61 | -1.2% | +31.2% | - | |
| Nov 25, 2025 | Tseng Saria49 | EVP &General Counsel | Sell | 20,000 | $904.18 | $18,083,638.33 | -0.5% | +31.0% | - | |
| Nov 25, 2025 | Chang Kuo Wei Herbert54 | Director | Sell | 100 | $896.97 | $89,697.00 | -19.0% | +31.0% | - | |
| Nov 24, 2025 | Sciammas Maurice48 | EVP, Ww Sales &Marketing | Sell | 3,976 | $895.23 | $3,559,434.48 | -2.7% | +33.3% | - | |
| Nov 21, 2025 | Chang Kuo Wei Herbert54 | Director | Sell | 100 | $873.97 | $87,397.00 | -16.0% | +34.7% | - | |
| Nov 19, 2025 | Sciammas Maurice48 | EVP, Ww Sales &Marketing | Sell | 7,034 | $870.21 | $6,121,059.06 | -0.3% | +32.6% | - | |
| Nov 19, 2025 | Sciammas Maurice48 | EVP, Ww Sales &Marketing | Sell | 27,966 | $881.66 | $24,656,386.86 | -1.4% | +32.6% | - | |
| Nov 12, 2025 | Hsing Michael49 | CEO | Sell | 37,000 | $965.52 | $35,724,379.66 | -0.2% | +19.2% | - |