Xiao Deming, EVP of Global Operations at Monolithic Power Systems ($MPWR), sold shares on the open market twice in the last year for nearly $58 million. His most recent sale occurred on February 6, 2026. These MPWR insider sales rank 274th among 11,678 individuals in our database, surpassing the average of $8.6 million and 6.4 transactions per seller. He made no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 6, 2026 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 22875 | $1171.16 | 260,723.0000 | 48,042,000 | 8.07% | 0.05% |
| Feb. 3, 2026 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | A | Common Stock | 57170 | $0.00 | 283,598.0000 | 48,042,000 | 25.25% | 0.12% |
| Oct. 30, 2025 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | F | Common Stock | 54543 | $1096.63 | 226,428.0000 | 48,042,000 | 19.41% | 0.11% |
| Oct. 25, 2025 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | A | Common Stock | 135520 | $0.00 | 280,971.0000 | 48,042,000 | 93.17% | 0.28% |
| Aug. 11, 2025 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 945 | $0.00 | 145,451.0000 | 48,835,000 | 0.65% | 0.00% |
| Aug. 11, 2025 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 945 | $0.00 | 145,451.0000 | 48,835,000 | 0.65% | 0.00% |
| Aug. 1, 2025 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 39999 | $780.00 | 145,451.0000 | 48,835,000 | 21.57% | 0.08% |
| Feb. 10, 2025 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 662 | $717.10 | 185,423.0000 | 48,835,000 | 0.36% | 0.00% |
| Nov. 8, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 866 | $765.14 | 186,085.0000 | 48,964,000 | 0.46% | 0.00% |
| Aug. 27, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 9259 | $950.00 | 186,951.0000 | 48,771,000 | 4.72% | 0.02% |
| Aug. 22, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 8968 | $0.00 | 196,210.0000 | 48,771,000 | 4.37% | 0.02% |
| Aug. 22, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 8968 | $0.00 | 206,210.0000 | 48,771,000 | 4.55% | 0.02% |
| Aug. 22, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 10000 | $950.00 | 196,210.0000 | 48,771,000 | 4.85% | 0.02% |
| Aug. 19, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 30291 | $0.00 | 206,210.0000 | 48,771,000 | 12.81% | 0.06% |
| Aug. 19, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 30291 | $0.00 | 206,210.0000 | 48,771,000 | 17.22% | 0.06% |
| Aug. 8, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 859 | $778.39 | 206,200.0000 | 48,771,000 | 0.41% | 0.00% |
| July 22, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 3205 | $831.58 | 207,059.0000 | 48,771,000 | 1.52% | 0.01% |
| May 22, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 1300 | $769.40 | 210,264.0000 | 48,771,000 | 0.61% | 0.00% |
| May 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | G | Common Stock | 29 | $0.00 | 211,564.0000 | 48,771,000 | 0.01% | 0.00% |
| May 8, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | EVP, Global Operations | S | Common Stock | 869 | $690.02 | 211,593.0000 | 48,771,000 | 0.41% | 0.00% |
| Feb. 8, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 859 | $680.00 | 212,426.0000 | 48,771,000 | 0.40% | 0.00% |
| Feb. 5, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 982 | $641.00 | 213,285.0000 | 48,771,000 | 0.46% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 2387 | $589.52 | 219,359.0000 | 48,771,000 | 1.08% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 3718 | $590.37 | 215,641.0000 | 48,771,000 | 1.69% | 0.01% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 930 | $591.34 | 214,711.0000 | 48,771,000 | 0.43% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 200 | $592.38 | 214,511.0000 | 48,771,000 | 0.09% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 500 | $584.39 | 225,282.0000 | 48,771,000 | 0.22% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 204 | $594.13 | 214,297.0000 | 48,771,000 | 0.10% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 30 | $596.19 | 214,267.0000 | 48,771,000 | 0.01% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 10 | $593.00 | 214,501.0000 | 48,771,000 | 0.00% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 700 | $586.21 | 224,582.0000 | 48,771,000 | 0.31% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 1079 | $587.84 | 223,503.0000 | 48,771,000 | 0.48% | 0.00% |
| Jan. 10, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 1757 | $588.44 | 221,746.0000 | 48,771,000 | 0.79% | 0.00% |
| Jan. 4, 2024 | MONOLITHIC POWER SYSTEMS INC | $MPWR | Xiao Deming | Pres. of MPS Asia Operations | S | Common Stock | 25314 | $583.14 | 225,782.0000 | 48,771,000 | 10.08% | 0.05% |