Sciammas Maurice - Insider Non-Derivative Transactions at MONOLITHIC POWER SYSTEMS INC (MPWR) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Nov 24, 2025, Sciammas Maurice's relationship to MONOLITHIC POWER SYSTEMS INC (MPWR) is Officer (EVP, WW Sales & Marketing), and currently has 144,330 shares of Common Stock, and 205,206 shares of common.
The charts below show 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.
Sciammas Maurice - Insider Non-Derivative Transactions of MPWR Common Stock
Sciammas Maurice - Insider Non-Derivative Transactions at MPWR
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Nov 25, 2025 | Sell -- (Common Stock) | 3976 | 895.23 | 144330 |
| Nov 20, 2025 | Sell -- (Common Stock) | 810 | 886.01 | 148306 |
| Nov 20, 2025 | Sell -- (Common Stock) | 1738 | 885.1 | 149116 |
| Nov 20, 2025 | Sell -- (Common Stock) | 2149 | 884.44 | 150854 |
| Nov 20, 2025 | Sell -- (Common Stock) | 6513 | 883.5 | 153003 |
| Nov 20, 2025 | Sell -- (Common Stock) | 3344 | 882.51 | 159516 |
| Nov 20, 2025 | Sell -- (Common Stock) | 2469 | 881.42 | 162860 |
| Nov 20, 2025 | Sell -- (Common Stock) | 3776 | 880.58 | 165329 |
| Nov 20, 2025 | Sell -- (Common Stock) | 1966 | 879.54 | 169105 |
| Nov 20, 2025 | Sell -- (Common Stock) | 1854 | 878.55 | 171071 |
| Nov 20, 2025 | Sell -- (Common Stock) | 1976 | 877.45 | 172925 |
| Nov 20, 2025 | Sell -- (Common Stock) | 940 | 876.62 | 174901 |
| Nov 20, 2025 | Sell -- (Common Stock) | 431 | 875.26 | 175841 |
| Nov 20, 2025 | Sell -- (Common Stock) | 731 | 874.5 | 176272 |
| Nov 20, 2025 | Sell -- (Common Stock) | 1146 | 873.78 | 177003 |
| Nov 20, 2025 | Sell -- (Common Stock) | 574 | 872.8 | 178149 |
| Nov 20, 2025 | Sell -- (Common Stock) | 220 | 871.45 | 178723 |
| Nov 20, 2025 | Sell -- (Common Stock) | 320 | 870.36 | 178943 |
| Nov 20, 2025 | Sell -- (Common Stock) | 1842 | 869.39 | 179263 |
| Nov 20, 2025 | Sell -- (Common Stock) | 723 | 868.42 | 181105 |
| Nov 20, 2025 | Sell -- (Common Stock) | 699 | 867.57 | 181828 |
| Nov 20, 2025 | Sell -- (Common Stock) | 339 | 866.19 | 182527 |
| Nov 20, 2025 | Sell -- (Common Stock) | 40 | 865.89 | 182866 |
| Nov 20, 2025 | Sell -- (Common Stock) | 160 | 863.86 | 182906 |
| Nov 20, 2025 | Sell -- (Common Stock) | 240 | 862.58 | 183066 |
| Nov 14, 2025 | G -- (Common Stock) | 4530 | 0 | 26660 |
| Nov 14, 2025 | G -- (Common Stock) | 4530 | 0 | 49460 |
| Nov 6, 2025 | Sell -- (Common Stock) | 200 | 986.81 | 1299 |
| Oct 31, 2025 | F -- (Common Stock) | 54543 | 1096.63 | 183306 |
| Oct 26, 2025 | Acquisition -- (Common Stock) | 135520 | 0 | 237849 |
| Aug 20, 2025 | G -- (Common Stock) | 1000 | 0 | 1000 |
| Aug 20, 2025 | G -- (Common Stock) | 1499 | 0 | 1499 |
| Aug 20, 2025 | G -- (Common Stock) | 1499 | 0 | 12228 |
| Aug 7, 2025 | G -- (Common Stock) | 1418 | 0 | 9481 |
| Aug 7, 2025 | G -- (Common Stock) | 2000 | 0 | 13727 |
| Aug 7, 2025 | G -- (Common Stock) | 4836 | 0 | 44930 |
| May 29, 2025 | G -- (Common Stock) | 1499 | 0 | 1499 |
| May 29, 2025 | G -- (Common Stock) | 1499 | 0 | 15727 |
| May 13, 2025 | Sell -- (Common Stock) | 12000 | 701 | 4015 |
| May 10, 2025 | G -- (Common Stock) | 1878 | 0 | 17226 |
| May 10, 2025 | G -- (Common Stock) | 1878 | 0 | 40094 |
| Feb 19, 2025 | G -- (Common Stock) | 1102 | 0 | 19104 |
| Feb 19, 2025 | G -- (Common Stock) | 1102 | 0 | 38216 |
| Feb 12, 2025 | G -- (Common Stock) | 2525 | 0 | 10899 |
| Feb 12, 2025 | G -- (Common Stock) | 5050 | 0 | 37114 |
| Feb 11, 2025 | Sell -- (Common Stock) | 662 | 717.1 | 102301 |
| Feb 8, 2025 | Sell -- (Common Stock) | 200 | 704.92 | 16015 |
| Feb 8, 2025 | Sell -- (Common Stock) | 1259 | 703.88 | 16215 |
| Feb 8, 2025 | Sell -- (Common Stock) | 1600 | 702.46 | 17474 |
| Feb 8, 2025 | Sell -- (Common Stock) | 3941 | 701.03 | 19074 |
| Nov 9, 2024 | Sell -- (Common Stock) | 866 | 765.14 | 102963 |
| Oct 8, 2024 | Sell -- (Common Stock) | 200 | 935 | 103829 |
| Oct 8, 2024 | Sell -- (Common Stock) | 2 | 933.16 | 104012 |
| Oct 8, 2024 | Sell -- (Common Stock) | 1559 | 932.52 | 104014 |
| Oct 8, 2024 | Sell -- (Common Stock) | 2304 | 931.33 | 105573 |
| Oct 8, 2024 | Sell -- (Common Stock) | 789 | 930.51 | 107877 |
| Oct 8, 2024 | Sell -- (Common Stock) | 1774 | 929.55 | 108666 |
| Oct 8, 2024 | Sell -- (Common Stock) | 1576 | 928.39 | 110440 |
| Oct 8, 2024 | Sell -- (Common Stock) | 1695 | 927.4 | 112016 |
| Oct 8, 2024 | Sell -- (Common Stock) | 75 | 926.57 | 113711 |
| Oct 8, 2024 | Sell -- (Common Stock) | 800 | 925.91 | 113786 |
| Oct 8, 2024 | Sell -- (Common Stock) | 226 | 922.72 | 114586 |
| Aug 9, 2024 | Sell -- (Common Stock) | 859 | 778.39 | 114812 |
| Jul 23, 2024 | Sell -- (Common Stock) | 3205 | 831.58 | 115671 |
| Jul 9, 2024 | Sell -- (Common Stock) | 96 | 848.48 | 118876 |
| Jul 9, 2024 | Sell -- (Common Stock) | 363 | 847.4 | 118972 |
| Jul 9, 2024 | Sell -- (Common Stock) | 472 | 846.35 | 119335 |
| Jul 9, 2024 | Sell -- (Common Stock) | 2479 | 845.39 | 119807 |
| Jul 9, 2024 | Sell -- (Common Stock) | 1623 | 844.42 | 122286 |
| Jul 9, 2024 | Sell -- (Common Stock) | 2432 | 843.43 | 123909 |
| Jul 9, 2024 | Sell -- (Common Stock) | 1772 | 842.59 | 126341 |
| Jul 9, 2024 | Sell -- (Common Stock) | 1242 | 841.56 | 128113 |
| Jul 9, 2024 | Sell -- (Common Stock) | 500 | 840.45 | 129355 |
| Jul 9, 2024 | Sell -- (Common Stock) | 20 | 839.89 | 129855 |
| May 14, 2024 | G -- (Common Stock) | 1590 | 0 | 13424 |
| May 14, 2024 | G -- (Common Stock) | 1892 | 0 | 20206 |
| May 14, 2024 | G -- (Common Stock) | 5072 | 0 | 32064 |
| May 9, 2024 | Sell -- (Common Stock) | 869 | 690 | 129875 |
| Apr 9, 2024 | Sell -- (Common Stock) | 100 | 690.15 | 130744 |
| Apr 9, 2024 | Sell -- (Common Stock) | 100 | 689.85 | 130844 |
| Apr 9, 2024 | Sell -- (Common Stock) | 10 | 687.38 | 130944 |
| Apr 9, 2024 | Sell -- (Common Stock) | 100 | 686.05 | 130954 |
| Apr 9, 2024 | Sell -- (Common Stock) | 1199 | 685.32 | 131054 |
| Apr 9, 2024 | Sell -- (Common Stock) | 691 | 684.88 | 132253 |
| Apr 9, 2024 | Sell -- (Common Stock) | 1714 | 683.5 | 132944 |
| Apr 9, 2024 | Sell -- (Common Stock) | 3296 | 682.12 | 134658 |
| Apr 9, 2024 | Sell -- (Common Stock) | 769 | 681.19 | 137954 |
| Apr 9, 2024 | Sell -- (Common Stock) | 1476 | 680.82 | 138723 |
| Apr 9, 2024 | Sell -- (Common Stock) | 300 | 679.52 | 140199 |
| Apr 9, 2024 | Sell -- (Common Stock) | 300 | 678.5 | 140499 |
| Apr 9, 2024 | Sell -- (Common Stock) | 251 | 676.57 | 140799 |
| Apr 9, 2024 | Sell -- (Common Stock) | 49 | 675.61 | 141050 |
| Apr 9, 2024 | Sell -- (Common Stock) | 100 | 674.54 | 141099 |
| Apr 9, 2024 | Sell -- (Common Stock) | 200 | 673.28 | 141199 |
| Apr 9, 2024 | Sell -- (Common Stock) | 345 | 668.76 | 141399 |
| Apr 2, 2024 | G -- (Common Stock) | 1172 | 0 | 22098 |
| Apr 2, 2024 | G -- (Common Stock) | 1172 | 0 | 26992 |
| Feb 9, 2024 | Sell -- (Common Stock) | 859 | 680 | 141718 |
| Feb 6, 2024 | Sell -- (Common Stock) | 982 | 641 | 142577 |
| Jan 13, 2024 | Sell -- (Common Stock) | 500 | 589.29 | 143559 |
| Jan 13, 2024 | Sell -- (Common Stock) | 1065 | 588.33 | 144059 |
| Jan 13, 2024 | Sell -- (Common Stock) | 200 | 587.78 | 145124 |
| Jan 13, 2024 | Sell -- (Common Stock) | 525 | 586.67 | 145324 |
| Jan 13, 2024 | Sell -- (Common Stock) | 142 | 585.3 | 145849 |
| Jan 13, 2024 | Sell -- (Common Stock) | 714 | 584.14 | 145991 |
| Jan 13, 2024 | Sell -- (Common Stock) | 1263 | 583.55 | 146705 |
| Jan 13, 2024 | Sell -- (Common Stock) | 1300 | 582.75 | 147968 |
| Jan 13, 2024 | Sell -- (Common Stock) | 300 | 581.17 | 149268 |
| Jan 13, 2024 | Sell -- (Common Stock) | 1430 | 579.73 | 149568 |
| Jan 13, 2024 | Sell -- (Common Stock) | 1562 | 578.47 | 150998 |
| Jan 13, 2024 | Sell -- (Common Stock) | 1999 | 577.66 | 152560 |
| Jan 5, 2024 | Sell -- (Common Stock) | 27659 | 583.14 | 154559 |
| Nov 9, 2023 | Sell -- (Common Stock) | 859 | 490.39 | 182218 |
| Nov 7, 2023 | Sell -- (Common Stock) | 982 | 492.92 | 183077 |
| Oct 3, 2023 | Sell -- (Common Stock) | 4305 | 458.3 | 184059 |
| Aug 9, 2023 | Sell -- (Common Stock) | 874 | 530.26 | 188339 |
| Aug 5, 2023 | Sell -- (Common Stock) | 988 | 526.52 | 189213 |
| Jul 22, 2023 | Sell -- (Common Stock) | 9843 | 534.23 | 190201 |
| Jul 4, 2023 | Sell -- (Common Stock) | 4305 | 537.79 | 200044 |
| May 10, 2023 | Sell -- (Common Stock) | 857 | 409.78 | 204349 |
| May 5, 2023 | Sell -- (common) | 991 | 459.6 | 205206 |
| May 4, 2023 | Sell -- (Common Stock) | 3462 | 463.55 | 206197 |
| May 3, 2023 | Acquisition -- (Common Stock) | 8685 | 0 | 209659 |
| Apr 4, 2023 | Sell -- (Common Stock) | 4360 | 487.99 | 200974 |
| Feb 16, 2023 | Sell -- (Common Stock) | 2778 | 520.9 | 205334 |
| Feb 16, 2023 | Sell -- (Common Stock) | 4340 | 520.2 | 208090 |
| Feb 16, 2023 | Sell -- (Common Stock) | 3200 | 519.02 | 212430 |
| Feb 16, 2023 | Sell -- (Common Stock) | 2682 | 517.68 | 215630 |
| Feb 14, 2023 | Sell -- (Common Stock) | 1639 | 492.31 | 218312 |
| Feb 9, 2023 | Sell -- (Common Stock) | 6922 | 462.41 | 219951 |
| Feb 8, 2023 | Acquisition -- (Common Stock) | 34740 | 0 | 226873 |
| Feb 7, 2023 | Sell -- (Common Stock) | 723 | 446.87 | 192133 |
| Jan 4, 2023 | Sell -- (Common Stock) | 5528 | 344.96 | 192856 |
| Dec 16, 2022 | G -- (Common Stock) | 6204 | 0 | 13502 |
| Dec 16, 2022 | G -- (Common Stock) | 3102 | 0 | 19458 |
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