Hsing Michael - Insider Non-Derivative Transactions at MONOLITHIC POWER SYSTEMS INC (MPWR) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Dec 9, 2025, Hsing Michael's relationship to MONOLITHIC POWER SYSTEMS INC (MPWR) is Director,Officer (CEO), and currently has 906,332 shares of Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other MPWR insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Hsing Michael - Insider Non-Derivative Transactions of MPWR Common Stock
Hsing Michael - Insider Non-Derivative Transactions at MPWR
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 10, 2025 | G -- (Common Stock) | 12337 | 0 | 906332 |
| Nov 13, 2025 | Sell -- (Common Stock) | 987 | 980.06 | 918669 |
| Nov 13, 2025 | Sell -- (Common Stock) | 633 | 979.59 | 919656 |
| Nov 13, 2025 | Sell -- (Common Stock) | 298 | 973.73 | 920289 |
| Nov 13, 2025 | Sell -- (Common Stock) | 461 | 972.78 | 920587 |
| Nov 13, 2025 | Sell -- (Common Stock) | 59 | 971.81 | 921048 |
| Nov 13, 2025 | Sell -- (Common Stock) | 728 | 970.29 | 921107 |
| Nov 13, 2025 | Sell -- (Common Stock) | 975 | 969.62 | 921835 |
| Nov 13, 2025 | Sell -- (Common Stock) | 2072 | 968.37 | 922810 |
| Nov 13, 2025 | Sell -- (Common Stock) | 3024 | 967.41 | 924882 |
| Nov 13, 2025 | Sell -- (Common Stock) | 6562 | 966.45 | 927906 |
| Nov 13, 2025 | Sell -- (Common Stock) | 5619 | 965.5 | 934468 |
| Nov 13, 2025 | Sell -- (Common Stock) | 3264 | 964.47 | 940087 |
| Nov 13, 2025 | Sell -- (Common Stock) | 3552 | 963.47 | 943351 |
| Nov 13, 2025 | Sell -- (Common Stock) | 2817 | 962.61 | 946903 |
| Nov 13, 2025 | Sell -- (Common Stock) | 1904 | 961.63 | 949720 |
| Nov 13, 2025 | Sell -- (Common Stock) | 403 | 960.45 | 951624 |
| Nov 13, 2025 | Sell -- (Common Stock) | 440 | 959.36 | 952027 |
| Nov 13, 2025 | Sell -- (Common Stock) | 2799 | 958.34 | 952467 |
| Nov 13, 2025 | Sell -- (Common Stock) | 403 | 957.58 | 955266 |
| Nov 12, 2025 | Sell -- (Common Stock) | 154 | 967.15 | 955669 |
| Nov 12, 2025 | Sell -- (Common Stock) | 1246 | 966.3 | 955823 |
| Nov 12, 2025 | Sell -- (Common Stock) | 321 | 965.44 | 957069 |
| Nov 12, 2025 | Sell -- (Common Stock) | 739 | 964.38 | 957390 |
| Nov 12, 2025 | Sell -- (Common Stock) | 1894 | 963.41 | 958129 |
| Nov 12, 2025 | Sell -- (Common Stock) | 4172 | 962.57 | 960023 |
| Nov 12, 2025 | Sell -- (Common Stock) | 3900 | 961.47 | 964195 |
| Nov 12, 2025 | Sell -- (Common Stock) | 2734 | 960.45 | 968095 |
| Nov 12, 2025 | Sell -- (Common Stock) | 4010 | 959.45 | 970829 |
| Nov 12, 2025 | Sell -- (Common Stock) | 2500 | 958.59 | 974839 |
| Nov 12, 2025 | Sell -- (Common Stock) | 1020 | 957.71 | 977339 |
| Nov 12, 2025 | Sell -- (Common Stock) | 797 | 956.5 | 978359 |
| Nov 12, 2025 | Sell -- (Common Stock) | 4056 | 955.46 | 979156 |
| Nov 12, 2025 | Sell -- (Common Stock) | 7934 | 954.61 | 983212 |
| Nov 12, 2025 | Sell -- (Common Stock) | 2927 | 953.69 | 991146 |
| Nov 12, 2025 | Sell -- (Common Stock) | 1516 | 952.62 | 994073 |
| Nov 12, 2025 | Sell -- (Common Stock) | 80 | 951.69 | 995589 |
| Oct 31, 2025 | F -- (Common Stock) | 121918 | 1096.63 | 995669 |
| Oct 26, 2025 | Acquisition -- (Common Stock) | 302920 | 0 | 1117587 |
| Aug 16, 2025 | Sell -- (Common Stock) | 400 | 836.4 | 814667 |
| Aug 16, 2025 | Sell -- (Common Stock) | 200 | 834.92 | 815067 |
| Aug 16, 2025 | Sell -- (Common Stock) | 535 | 833.37 | 815267 |
| Aug 16, 2025 | Sell -- (Common Stock) | 1510 | 832.57 | 815802 |
| Aug 16, 2025 | Sell -- (Common Stock) | 1953 | 831.57 | 817312 |
| Aug 16, 2025 | Sell -- (Common Stock) | 2100 | 830.46 | 819265 |
| Aug 16, 2025 | Sell -- (Common Stock) | 4101 | 829.45 | 821365 |
| Aug 16, 2025 | Sell -- (Common Stock) | 396 | 828.64 | 825466 |
| Aug 16, 2025 | Sell -- (Common Stock) | 3878 | 827.72 | 825862 |
| Aug 16, 2025 | Sell -- (Common Stock) | 2555 | 826.64 | 829740 |
| Aug 16, 2025 | Sell -- (Common Stock) | 2603 | 825.69 | 832295 |
| Feb 19, 2025 | Sell -- (Common Stock) | 5200 | 700 | 834898 |
| Feb 11, 2025 | Sell -- (Common Stock) | 2594 | 717.1 | 840071 |
| Feb 8, 2025 | Sell -- (Common Stock) | 11964 | 700 | 842665 |
| Jan 25, 2025 | Sell -- (Common Stock) | 3636 | 700 | 854629 |
| Nov 9, 2024 | Sell -- (Common Stock) | 2812 | 765.15 | 858265 |
| Aug 17, 2024 | Sell -- (Common Stock) | 100 | 823.27 | 864009 |
| Aug 10, 2024 | Sell -- (Common Stock) | 114 | 840.24 | 861069 |
| Aug 10, 2024 | Sell -- (Common Stock) | 146 | 839.9 | 861183 |
| Aug 10, 2024 | Sell -- (Common Stock) | 240 | 838.23 | 861329 |
| Aug 10, 2024 | Sell -- (Common Stock) | 391 | 837.57 | 861569 |
| Aug 10, 2024 | Sell -- (Common Stock) | 380 | 836.21 | 861960 |
| Aug 10, 2024 | Sell -- (Common Stock) | 262 | 832.28 | 862340 |
| Aug 10, 2024 | Sell -- (Common Stock) | 107 | 831.83 | 862602 |
| Aug 10, 2024 | Sell -- (Common Stock) | 500 | 828.15 | 862709 |
| Aug 10, 2024 | Sell -- (Common Stock) | 100 | 827.21 | 863209 |
| Aug 10, 2024 | Sell -- (Common Stock) | 200 | 826 | 863309 |
| Aug 10, 2024 | Sell -- (Common Stock) | 500 | 824.63 | 863509 |
| Aug 10, 2024 | Sell -- (Common Stock) | 100 | 821.32 | 864109 |
| Aug 10, 2024 | Sell -- (Common Stock) | 100 | 817.1 | 864209 |
| Aug 10, 2024 | Sell -- (Common Stock) | 300 | 816.18 | 864309 |
| Aug 10, 2024 | Sell -- (Common Stock) | 458 | 815.37 | 864609 |
| Aug 10, 2024 | Sell -- (Common Stock) | 65 | 814.72 | 865067 |
| Aug 10, 2024 | Sell -- (Common Stock) | 200 | 813.23 | 865132 |
| Aug 9, 2024 | Sell -- (Common Stock) | 2790 | 778.39 | 865332 |
| Jul 23, 2024 | Sell -- (Common Stock) | 9614 | 831.58 | 868122 |
| Jul 2, 2024 | Sell -- (Common Stock) | 102 | 807.88 | 877736 |
| Jul 2, 2024 | Sell -- (Common Stock) | 1820 | 806.39 | 877838 |
| Jul 2, 2024 | Sell -- (Common Stock) | 150 | 804.18 | 879658 |
| Jul 2, 2024 | Sell -- (Common Stock) | 100 | 802.19 | 879808 |
| Jul 2, 2024 | Sell -- (Common Stock) | 200 | 800.62 | 879908 |
| Jul 2, 2024 | Sell -- (Common Stock) | 100 | 798.74 | 880108 |
| Jul 2, 2024 | Sell -- (Common Stock) | 200 | 794.69 | 880208 |
| Jun 4, 2024 | Sell -- (Common Stock) | 213 | 746.35 | 880408 |
| Jun 4, 2024 | Sell -- (Common Stock) | 200 | 744.06 | 880621 |
| Jun 4, 2024 | Sell -- (Common Stock) | 152 | 743.58 | 880821 |
| Jun 4, 2024 | Sell -- (Common Stock) | 20 | 742.1 | 880973 |
| Jun 4, 2024 | Sell -- (Common Stock) | 180 | 741.7 | 880993 |
| Jun 4, 2024 | Sell -- (Common Stock) | 248 | 738.33 | 881173 |
| Jun 4, 2024 | Sell -- (Common Stock) | 200 | 737.43 | 881421 |
| Jun 4, 2024 | Sell -- (Common Stock) | 387 | 736.27 | 881621 |
| Jun 4, 2024 | Sell -- (Common Stock) | 470 | 735.37 | 882008 |
| Jun 4, 2024 | Sell -- (Common Stock) | 1062 | 734.34 | 882478 |
| Jun 4, 2024 | Sell -- (Common Stock) | 700 | 733.53 | 883540 |
| Jun 4, 2024 | Sell -- (Common Stock) | 875 | 732.8 | 884240 |
| Jun 4, 2024 | Sell -- (Common Stock) | 441 | 731.45 | 885115 |
| Jun 4, 2024 | Sell -- (Common Stock) | 157 | 730.48 | 885556 |
| Jun 4, 2024 | Sell -- (Common Stock) | 100 | 729.86 | 885713 |
| Jun 4, 2024 | Sell -- (Common Stock) | 100 | 728.85 | 885813 |
| Jun 4, 2024 | Sell -- (Common Stock) | 581 | 725.59 | 885913 |
| Jun 4, 2024 | Sell -- (Common Stock) | 549 | 723.48 | 886494 |
| Jun 4, 2024 | Sell -- (Common Stock) | 338 | 722.43 | 887043 |
| Jun 4, 2024 | Sell -- (Common Stock) | 211 | 721.6 | 887381 |
| Jun 4, 2024 | Sell -- (Common Stock) | 166 | 720.15 | 887592 |
| Jun 4, 2024 | Sell -- (Common Stock) | 100 | 719.04 | 887758 |
| Jun 4, 2024 | Sell -- (Common Stock) | 228 | 717.36 | 887858 |
| Jun 4, 2024 | Sell -- (Common Stock) | 70 | 716.84 | 888086 |
| Jun 4, 2024 | Sell -- (Common Stock) | 190 | 715.5 | 888156 |
| Jun 4, 2024 | Sell -- (Common Stock) | 62 | 714.56 | 888346 |
| May 9, 2024 | Sell -- (Common Stock) | 2824 | 690 | 888408 |
| May 2, 2024 | Sell -- (Common Stock) | 100 | 670.09 | 891232 |
| May 2, 2024 | Sell -- (Common Stock) | 900 | 668.34 | 891332 |
| May 2, 2024 | Sell -- (Common Stock) | 200 | 667.41 | 892232 |
| May 2, 2024 | Sell -- (Common Stock) | 497 | 666.54 | 892432 |
| May 2, 2024 | Sell -- (Common Stock) | 350 | 665.69 | 892929 |
| May 2, 2024 | Sell -- (Common Stock) | 500 | 664.7 | 893279 |
| May 2, 2024 | Sell -- (Common Stock) | 600 | 663.27 | 893779 |
| May 2, 2024 | Sell -- (Common Stock) | 697 | 662.34 | 894379 |
| May 2, 2024 | Sell -- (Common Stock) | 876 | 661.49 | 895076 |
| May 2, 2024 | Sell -- (Common Stock) | 900 | 660.45 | 895952 |
| May 2, 2024 | Sell -- (Common Stock) | 1000 | 659.49 | 896852 |
| May 2, 2024 | Sell -- (Common Stock) | 195 | 658.9 | 897852 |
| May 2, 2024 | Sell -- (Common Stock) | 217 | 655.08 | 898047 |
| May 2, 2024 | Sell -- (Common Stock) | 378 | 654.23 | 898264 |
| May 2, 2024 | Sell -- (Common Stock) | 251 | 653.46 | 898642 |
| May 2, 2024 | Sell -- (Common Stock) | 339 | 652.81 | 898893 |
| Apr 2, 2024 | Sell -- (Common Stock) | 350 | 687.45 | 899232 |
| Apr 2, 2024 | Sell -- (Common Stock) | 400 | 686.77 | 899582 |
| Apr 2, 2024 | Sell -- (Common Stock) | 400 | 685.51 | 899982 |
| Apr 2, 2024 | Sell -- (Common Stock) | 230 | 684.61 | 900382 |
| Apr 2, 2024 | Sell -- (Common Stock) | 425 | 683.5 | 900612 |
| Apr 2, 2024 | Sell -- (Common Stock) | 100 | 682.04 | 901037 |
| Apr 2, 2024 | Sell -- (Common Stock) | 600 | 679.24 | 901137 |
| Apr 2, 2024 | Sell -- (Common Stock) | 904 | 677.4 | 901737 |
| Apr 2, 2024 | Sell -- (Common Stock) | 291 | 676.42 | 902641 |
| Apr 2, 2024 | Sell -- (Common Stock) | 680 | 675.64 | 902932 |
| Apr 2, 2024 | Sell -- (Common Stock) | 1300 | 674.57 | 903612 |
| Apr 2, 2024 | Sell -- (Common Stock) | 1114 | 673.48 | 904912 |
| Apr 2, 2024 | Sell -- (Common Stock) | 800 | 672.45 | 906026 |
| Apr 2, 2024 | Sell -- (Common Stock) | 206 | 671.81 | 906826 |
| Apr 2, 2024 | Sell -- (Common Stock) | 200 | 670.56 | 907032 |
| Mar 2, 2024 | Sell -- (Common Stock) | 200 | 733.37 | 907232 |
| Mar 2, 2024 | Sell -- (Common Stock) | 100 | 732.01 | 907393 |
| Mar 2, 2024 | Sell -- (Common Stock) | 120 | 731.82 | 907493 |
| Mar 2, 2024 | Sell -- (Common Stock) | 972 | 729.21 | 907613 |
| Mar 2, 2024 | Sell -- (Common Stock) | 2064 | 728.54 | 908585 |
| Mar 2, 2024 | Sell -- (Common Stock) | 1275 | 727.39 | 910649 |
| Mar 2, 2024 | Sell -- (Common Stock) | 791 | 726.72 | 911924 |
| Mar 2, 2024 | Sell -- (Common Stock) | 300 | 725.53 | 912715 |
| Mar 2, 2024 | Sell -- (Common Stock) | 200 | 724.41 | 913015 |
| Mar 2, 2024 | Sell -- (Common Stock) | 441 | 721.6 | 913215 |
| Mar 2, 2024 | Sell -- (Common Stock) | 312 | 720.27 | 913656 |
| Mar 2, 2024 | Sell -- (Common Stock) | 825 | 719.47 | 913968 |
| Mar 2, 2024 | Sell -- (Common Stock) | 200 | 718.52 | 914793 |
| Mar 2, 2024 | Sell -- (Common Stock) | 100 | 717.31 | 914993 |
| Mar 2, 2024 | Sell -- (Common Stock) | 100 | 716.82 | 915093 |
| Feb 9, 2024 | Sell -- (Common Stock) | 2790 | 680 | 915193 |
| Feb 6, 2024 | Sell -- (Common Stock) | 3791 | 641 | 917983 |
| Feb 2, 2024 | Sell -- (Common Stock) | 300 | 609.39 | 921774 |
| Feb 2, 2024 | Sell -- (Common Stock) | 100 | 608.78 | 922072 |
| Feb 2, 2024 | Sell -- (Common Stock) | 282 | 607.01 | 922172 |
| Feb 2, 2024 | Sell -- (Common Stock) | 477 | 606.39 | 922454 |
| Feb 2, 2024 | Sell -- (Common Stock) | 262 | 605.05 | 922931 |
| Feb 2, 2024 | Sell -- (Common Stock) | 1023 | 604.59 | 923193 |
| Feb 2, 2024 | Sell -- (Common Stock) | 1171 | 603.48 | 924216 |
| Feb 2, 2024 | Sell -- (Common Stock) | 703 | 602.5 | 925387 |
| Feb 2, 2024 | Sell -- (Common Stock) | 325 | 601.56 | 926090 |
| Feb 2, 2024 | Sell -- (Common Stock) | 430 | 600.48 | 926415 |
| Feb 2, 2024 | Sell -- (Common Stock) | 1343 | 599.6 | 926845 |
| Feb 2, 2024 | Sell -- (Common Stock) | 855 | 598.36 | 928188 |
| Feb 2, 2024 | Sell -- (Common Stock) | 129 | 597.77 | 929043 |
| Feb 2, 2024 | Sell -- (Common Stock) | 200 | 595.31 | 929172 |
| Feb 2, 2024 | Sell -- (Common Stock) | 400 | 594.81 | 929372 |
| Jan 6, 2024 | Sell -- (Common Stock) | 18 | 577.01 | 929772 |
| Jan 6, 2024 | Sell -- (Common Stock) | 128 | 576.81 | 929790 |
| Jan 6, 2024 | Sell -- (Common Stock) | 546 | 575.39 | 929918 |
| Jan 6, 2024 | Sell -- (Common Stock) | 1067 | 574.49 | 930464 |
| Jan 6, 2024 | Sell -- (Common Stock) | 811 | 573.52 | 931531 |
| Jan 6, 2024 | Sell -- (Common Stock) | 1522 | 572.43 | 932342 |
| Jan 6, 2024 | Sell -- (Common Stock) | 1141 | 571.65 | 933864 |
| Jan 6, 2024 | Sell -- (Common Stock) | 2051 | 570.62 | 935005 |
| Jan 6, 2024 | Sell -- (Common Stock) | 614 | 569.92 | 937056 |
| Jan 6, 2024 | Sell -- (Common Stock) | 102 | 568.36 | 937670 |
| Jan 5, 2024 | Sell -- (Common Stock) | 58654 | 583.14 | 937772 |
| Nov 9, 2023 | Sell -- (Common Stock) | 2790 | 490.39 | 996426 |
| Nov 7, 2023 | Sell -- (Common Stock) | 3790 | 492.92 | 999216 |
| Oct 3, 2023 | Sell -- (Common Stock) | 10960 | 458.3 | 1003006 |
| Aug 9, 2023 | Sell -- (Common Stock) | 2836 | 530.26 | 1013951 |
| Aug 5, 2023 | Sell -- (Common Stock) | 3815 | 526.54 | 1016787 |
| Jul 22, 2023 | Sell -- (Common Stock) | 28845 | 534.23 | 1020602 |
| Jul 4, 2023 | Sell -- (Common Stock) | 10960 | 537.79 | 1049447 |
| May 10, 2023 | Sell -- (Common Stock) | 2785 | 409.78 | 1060407 |
| May 5, 2023 | Sell -- (Common Stock) | 3825 | 459.6 | 1063192 |
| May 4, 2023 | Sell -- (Common Stock) | 11242 | 463.55 | 1067017 |
| May 3, 2023 | Acquisition -- (Common Stock) | 28210 | 0 | 1078259 |
| Apr 4, 2023 | Sell -- (Common Stock) | 11100 | 487.99 | 1050049 |
| Feb 14, 2023 | Sell -- (Common Stock) | 6333 | 492.31 | 1061116 |
| Feb 9, 2023 | Sell -- (Common Stock) | 22483 | 462.41 | 1067449 |
| Feb 8, 2023 | Acquisition -- (Common Stock) | 112839 | 0 | 1089932 |
| Feb 7, 2023 | Sell -- (Common Stock) | 3691 | 446.88 | 977093 |
| Jan 4, 2023 | Sell -- (Common Stock) | 14888 | 344.96 | 980784 |
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