BLEGEN THEODORE - 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 1, 2025, BLEGEN THEODORE's relationship to MONOLITHIC POWER SYSTEMS INC (MPWR) is Officer (EVP and CFO), and currently has 74,292 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.
BLEGEN THEODORE - Insider Non-Derivative Transactions of MPWR Common Stock
BLEGEN THEODORE - Insider Non-Derivative Transactions at MPWR
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 2, 2025 | Sell -- (Common Stock) | 56 | 911.59 | 71332 |
| Dec 2, 2025 | Sell -- (Common Stock) | 1984 | 909 | 71388 |
| Dec 2, 2025 | Sell -- (Common Stock) | 480 | 908.69 | 73372 |
| Dec 2, 2025 | Sell -- (Common Stock) | 80 | 907.59 | 73852 |
| Dec 2, 2025 | Sell -- (Common Stock) | 80 | 906.84 | 73932 |
| Dec 2, 2025 | Sell -- (Common Stock) | 120 | 904.38 | 74012 |
| Dec 2, 2025 | Sell -- (Common Stock) | 40 | 902.31 | 74132 |
| Dec 2, 2025 | Sell -- (Common Stock) | 80 | 901.88 | 74172 |
| Dec 2, 2025 | Sell -- (Common Stock) | 40 | 900.88 | 74252 |
| Dec 2, 2025 | Sell -- (Common Stock) | 40 | 899.73 | 74292 |
| Nov 4, 2025 | Sell -- (Common Stock) | 47 | 1038.41 | 74332 |
| Nov 4, 2025 | Sell -- (Common Stock) | 40 | 1035.25 | 74379 |
| Nov 4, 2025 | Sell -- (Common Stock) | 40 | 1034.99 | 74419 |
| Nov 4, 2025 | Sell -- (Common Stock) | 80 | 1033 | 74459 |
| Nov 4, 2025 | Sell -- (Common Stock) | 184 | 1032.07 | 74539 |
| Nov 4, 2025 | Sell -- (Common Stock) | 17 | 1031.86 | 74723 |
| Nov 4, 2025 | Sell -- (Common Stock) | 210 | 1030 | 74740 |
| Nov 4, 2025 | Sell -- (Common Stock) | 246 | 1029.45 | 74950 |
| Nov 4, 2025 | Sell -- (Common Stock) | 240 | 1028.43 | 75196 |
| Nov 4, 2025 | Sell -- (Common Stock) | 200 | 1027.49 | 75436 |
| Nov 4, 2025 | Sell -- (Common Stock) | 43 | 1025.91 | 75636 |
| Nov 4, 2025 | Sell -- (Common Stock) | 208 | 1024.86 | 75679 |
| Nov 4, 2025 | Sell -- (Common Stock) | 291 | 1023.32 | 75887 |
| Nov 4, 2025 | Sell -- (Common Stock) | 40 | 1022.28 | 76178 |
| Nov 4, 2025 | Sell -- (Common Stock) | 168 | 1021.28 | 76218 |
| Nov 4, 2025 | Sell -- (Common Stock) | 160 | 1020.3 | 76386 |
| Nov 4, 2025 | Sell -- (Common Stock) | 181 | 1019.49 | 76546 |
| Nov 4, 2025 | Sell -- (Common Stock) | 180 | 1018.01 | 76727 |
| Nov 4, 2025 | Sell -- (Common Stock) | 6 | 1017.78 | 76907 |
| Nov 4, 2025 | Sell -- (Common Stock) | 80 | 1016.51 | 76913 |
| Nov 4, 2025 | Sell -- (Common Stock) | 135 | 1014.47 | 76993 |
| Nov 4, 2025 | Sell -- (Common Stock) | 204 | 1013.62 | 77128 |
| Oct 31, 2025 | F -- (Common Stock) | 48298 | 1096.63 | 77332 |
| Oct 26, 2025 | Acquisition -- (Common Stock) | 87690 | 0 | 125630 |
| Oct 2, 2025 | Sell -- (Common Stock) | 160 | 917.17 | 37940 |
| Oct 2, 2025 | Sell -- (Common Stock) | 580 | 916.37 | 38099 |
| Oct 2, 2025 | Sell -- (Common Stock) | 440 | 915.43 | 38679 |
| Oct 2, 2025 | Sell -- (Common Stock) | 390 | 914.71 | 39119 |
| Oct 2, 2025 | Sell -- (Common Stock) | 138 | 913.87 | 39509 |
| Oct 2, 2025 | Sell -- (Common Stock) | 676 | 912.73 | 39647 |
| Oct 2, 2025 | Sell -- (Common Stock) | 65 | 911.27 | 40323 |
| Oct 2, 2025 | Sell -- (Common Stock) | 80 | 909.52 | 40388 |
| Oct 2, 2025 | Sell -- (Common Stock) | 250 | 907.36 | 40468 |
| Oct 2, 2025 | Sell -- (Common Stock) | 115 | 905.37 | 40718 |
| Oct 2, 2025 | Sell -- (Common Stock) | 60 | 904 | 40833 |
| Oct 2, 2025 | Sell -- (Common Stock) | 40 | 903.82 | 40893 |
| Oct 2, 2025 | Sell -- (Common Stock) | 6 | 902.61 | 40933 |
| Sep 3, 2025 | Sell -- (Common Stock) | 126 | 822.59 | 40939 |
| Sep 3, 2025 | Sell -- (Common Stock) | 200 | 821.75 | 41065 |
| Sep 3, 2025 | Sell -- (Common Stock) | 200 | 820.7 | 41265 |
| Sep 3, 2025 | Sell -- (Common Stock) | 100 | 818.44 | 41465 |
| Sep 3, 2025 | Sell -- (Common Stock) | 574 | 816.47 | 41565 |
| Sep 3, 2025 | Sell -- (Common Stock) | 400 | 815.39 | 42139 |
| Sep 3, 2025 | Sell -- (Common Stock) | 200 | 814.75 | 42539 |
| Sep 3, 2025 | Sell -- (Common Stock) | 100 | 813.09 | 42739 |
| Sep 3, 2025 | Sell -- (Common Stock) | 100 | 812.84 | 42839 |
| Sep 3, 2025 | Sell -- (Common Stock) | 500 | 811.45 | 42939 |
| Sep 3, 2025 | Sell -- (Common Stock) | 100 | 808.53 | 43439 |
| Sep 3, 2025 | Sell -- (Common Stock) | 200 | 806.57 | 43539 |
| Sep 3, 2025 | Sell -- (Common Stock) | 100 | 804.64 | 43739 |
| Sep 3, 2025 | Sell -- (Common Stock) | 100 | 803.43 | 43839 |
| Aug 2, 2025 | Sell -- (Common Stock) | 3000 | 750 | 43939 |
| Jul 2, 2025 | Sell -- (Common Stock) | 6000 | 750 | 46939 |
| Feb 11, 2025 | Sell -- (Common Stock) | 532 | 717.1 | 52912 |
| Dec 10, 2024 | Sell -- (Common Stock) | 2500 | 600 | 53444 |
| Nov 9, 2024 | Sell -- (Common Stock) | 734 | 765.15 | 55944 |
| Nov 2, 2024 | Sell -- (Common Stock) | 100 | 779.79 | 56678 |
| Nov 2, 2024 | Sell -- (Common Stock) | 465 | 778.33 | 56778 |
| Nov 2, 2024 | Sell -- (Common Stock) | 300 | 777.43 | 57243 |
| Nov 2, 2024 | Sell -- (Common Stock) | 73 | 776.24 | 57543 |
| Nov 2, 2024 | Sell -- (Common Stock) | 300 | 775.65 | 57616 |
| Nov 2, 2024 | Sell -- (Common Stock) | 200 | 772.4 | 57916 |
| Nov 2, 2024 | Sell -- (Common Stock) | 246 | 771.03 | 58116 |
| Nov 2, 2024 | Sell -- (Common Stock) | 50 | 770.46 | 58362 |
| Nov 2, 2024 | Sell -- (Common Stock) | 175 | 768.08 | 58412 |
| Nov 2, 2024 | Sell -- (Common Stock) | 183 | 767.82 | 58587 |
| Nov 2, 2024 | Sell -- (Common Stock) | 208 | 766.22 | 58770 |
| Nov 2, 2024 | Sell -- (Common Stock) | 50 | 765.13 | 58978 |
| Nov 2, 2024 | Sell -- (Common Stock) | 150 | 764.54 | 59028 |
| Oct 2, 2024 | Sell -- (Common Stock) | 26 | 925.12 | 59178 |
| Oct 2, 2024 | Sell -- (Common Stock) | 133 | 924.59 | 59204 |
| Oct 2, 2024 | Sell -- (Common Stock) | 440 | 921.3 | 59337 |
| Oct 2, 2024 | Sell -- (Common Stock) | 10 | 920.7 | 59777 |
| Oct 2, 2024 | Sell -- (Common Stock) | 70 | 918.94 | 59787 |
| Oct 2, 2024 | Sell -- (Common Stock) | 16 | 917 | 59857 |
| Oct 2, 2024 | Sell -- (Common Stock) | 240 | 915.78 | 59873 |
| Oct 2, 2024 | Sell -- (Common Stock) | 111 | 909.38 | 60113 |
| Oct 2, 2024 | Sell -- (Common Stock) | 100 | 908 | 60224 |
| Oct 2, 2024 | Sell -- (Common Stock) | 96 | 907.22 | 60324 |
| Oct 2, 2024 | Sell -- (Common Stock) | 50 | 906.93 | 60420 |
| Oct 2, 2024 | Sell -- (Common Stock) | 116 | 905 | 60470 |
| Oct 2, 2024 | Sell -- (Common Stock) | 271 | 904.47 | 60586 |
| Oct 2, 2024 | Sell -- (Common Stock) | 56 | 903.33 | 60857 |
| Oct 2, 2024 | Sell -- (Common Stock) | 166 | 902.3 | 60913 |
| Oct 2, 2024 | Sell -- (Common Stock) | 108 | 897.58 | 61079 |
| Oct 2, 2024 | Sell -- (Common Stock) | 28 | 896.83 | 61187 |
| Oct 2, 2024 | Sell -- (Common Stock) | 296 | 894.42 | 61215 |
| Oct 2, 2024 | Sell -- (Common Stock) | 167 | 892.66 | 61511 |
| Sep 4, 2024 | Sell -- (Common Stock) | 250 | 919.73 | 61678 |
| Sep 4, 2024 | Sell -- (Common Stock) | 100 | 914.84 | 61928 |
| Sep 4, 2024 | Sell -- (Common Stock) | 100 | 912.7 | 62028 |
| Sep 4, 2024 | Sell -- (Common Stock) | 119 | 911.25 | 62128 |
| Sep 4, 2024 | Sell -- (Common Stock) | 7 | 910.29 | 62247 |
| Sep 4, 2024 | Sell -- (Common Stock) | 62 | 909.29 | 62254 |
| Sep 4, 2024 | Sell -- (Common Stock) | 1 | 908.24 | 62316 |
| Sep 4, 2024 | Sell -- (Common Stock) | 71 | 907.61 | 62317 |
| Sep 4, 2024 | Sell -- (Common Stock) | 240 | 906.33 | 62388 |
| Sep 4, 2024 | Sell -- (Common Stock) | 120 | 905.52 | 62628 |
| Sep 4, 2024 | Sell -- (Common Stock) | 200 | 904.24 | 62748 |
| Sep 4, 2024 | Sell -- (Common Stock) | 102 | 903.98 | 62948 |
| Sep 4, 2024 | Sell -- (Common Stock) | 70 | 902.21 | 63050 |
| Sep 4, 2024 | Sell -- (Common Stock) | 152 | 901.61 | 63120 |
| Sep 4, 2024 | Sell -- (Common Stock) | 140 | 900.39 | 63272 |
| Sep 4, 2024 | Sell -- (Common Stock) | 5 | 898.77 | 63412 |
| Sep 4, 2024 | Sell -- (Common Stock) | 119 | 897.75 | 63417 |
| Sep 4, 2024 | Sell -- (Common Stock) | 123 | 896.36 | 63536 |
| Sep 4, 2024 | Sell -- (Common Stock) | 170 | 895.31 | 63659 |
| Sep 4, 2024 | Sell -- (Common Stock) | 201 | 894.56 | 63829 |
| Sep 4, 2024 | Sell -- (Common Stock) | 148 | 893.29 | 64030 |
| Aug 9, 2024 | Sell -- (Common Stock) | 728 | 778.39 | 64178 |
| Aug 2, 2024 | Sell -- (Common Stock) | 100 | 859.12 | 64906 |
| Aug 2, 2024 | Sell -- (Common Stock) | 430 | 856.43 | 65006 |
| Aug 2, 2024 | Sell -- (Common Stock) | 432 | 855.66 | 65436 |
| Aug 2, 2024 | Sell -- (Common Stock) | 228 | 854.1 | 65868 |
| Aug 2, 2024 | Sell -- (Common Stock) | 360 | 853.66 | 66096 |
| Aug 2, 2024 | Sell -- (Common Stock) | 100 | 852.8 | 66456 |
| Aug 2, 2024 | Sell -- (Common Stock) | 300 | 851.63 | 66556 |
| Aug 2, 2024 | Sell -- (Common Stock) | 200 | 848.85 | 66856 |
| Aug 2, 2024 | Sell -- (Common Stock) | 350 | 842.43 | 67056 |
| Jul 23, 2024 | Sell -- (Common Stock) | 2580 | 831.58 | 67406 |
| Jul 2, 2024 | Sell -- (Common Stock) | 95 | 807.88 | 69986 |
| Jul 2, 2024 | Sell -- (Common Stock) | 1687 | 806.39 | 70081 |
| Jul 2, 2024 | Sell -- (Common Stock) | 111 | 805.39 | 71768 |
| Jul 2, 2024 | Sell -- (Common Stock) | 100 | 803.07 | 71879 |
| Jul 2, 2024 | Sell -- (Common Stock) | 200 | 798.56 | 71979 |
| Jul 2, 2024 | Sell -- (Common Stock) | 307 | 794.59 | 72179 |
| Jun 11, 2024 | Sell -- (Common Stock) | 84 | 741.66 | 72656 |
| Jun 4, 2024 | Sell -- (Common Stock) | 66 | 746.35 | 72486 |
| Jun 4, 2024 | Sell -- (Common Stock) | 82 | 745.11 | 72552 |
| Jun 4, 2024 | Sell -- (Common Stock) | 22 | 744.43 | 72634 |
| Jun 4, 2024 | Sell -- (Common Stock) | 84 | 738.43 | 72740 |
| Jun 4, 2024 | Sell -- (Common Stock) | 99 | 737.95 | 72824 |
| Jun 4, 2024 | Sell -- (Common Stock) | 236 | 736.09 | 72923 |
| Jun 4, 2024 | Sell -- (Common Stock) | 276 | 735.47 | 73159 |
| Jun 4, 2024 | Sell -- (Common Stock) | 160 | 734.42 | 73435 |
| Jun 4, 2024 | Sell -- (Common Stock) | 363 | 733.61 | 73595 |
| Jun 4, 2024 | Sell -- (Common Stock) | 178 | 732.54 | 73958 |
| Jun 4, 2024 | Sell -- (Common Stock) | 80 | 731.74 | 74136 |
| Jun 4, 2024 | Sell -- (Common Stock) | 192 | 725.42 | 74216 |
| Jun 4, 2024 | Sell -- (Common Stock) | 141 | 723.48 | 74408 |
| Jun 4, 2024 | Sell -- (Common Stock) | 179 | 722.26 | 74549 |
| Jun 4, 2024 | Sell -- (Common Stock) | 16 | 721.39 | 74728 |
| Jun 4, 2024 | Sell -- (Common Stock) | 14 | 720.26 | 74744 |
| Jun 4, 2024 | Sell -- (Common Stock) | 72 | 719.6 | 74758 |
| Jun 4, 2024 | Sell -- (Common Stock) | 60 | 717.35 | 74830 |
| Jun 4, 2024 | Sell -- (Common Stock) | 96 | 716.84 | 74890 |
| May 9, 2024 | Sell -- (Common Stock) | 737 | 689.98 | 74986 |
| May 2, 2024 | Sell -- (Common Stock) | 120 | 670.08 | 75723 |
| May 2, 2024 | Sell -- (Common Stock) | 200 | 667.41 | 75843 |
| May 2, 2024 | Sell -- (Common Stock) | 300 | 666.76 | 76043 |
| May 2, 2024 | Sell -- (Common Stock) | 300 | 665.61 | 76343 |
| May 2, 2024 | Sell -- (Common Stock) | 200 | 664.54 | 76643 |
| May 2, 2024 | Sell -- (Common Stock) | 319 | 662.37 | 76843 |
| May 2, 2024 | Sell -- (Common Stock) | 100 | 661.07 | 77162 |
| May 2, 2024 | Sell -- (Common Stock) | 600 | 660.49 | 77262 |
| May 2, 2024 | Sell -- (Common Stock) | 300 | 659.38 | 77862 |
| May 2, 2024 | Sell -- (Common Stock) | 61 | 658.9 | 78162 |
| Apr 2, 2024 | Sell -- (Common Stock) | 100 | 687.44 | 78223 |
| Apr 2, 2024 | Sell -- (Common Stock) | 200 | 686.89 | 78323 |
| Apr 2, 2024 | Sell -- (Common Stock) | 200 | 684.6 | 78523 |
| Apr 2, 2024 | Sell -- (Common Stock) | 100 | 682.04 | 78723 |
| Apr 2, 2024 | Sell -- (Common Stock) | 200 | 679.51 | 78823 |
| Apr 2, 2024 | Sell -- (Common Stock) | 264 | 677.58 | 79023 |
| Apr 2, 2024 | Sell -- (Common Stock) | 236 | 675.66 | 79287 |
| Apr 2, 2024 | Sell -- (Common Stock) | 400 | 674.55 | 79523 |
| Apr 2, 2024 | Sell -- (Common Stock) | 500 | 673.45 | 79923 |
| Apr 2, 2024 | Sell -- (Common Stock) | 100 | 672.25 | 80423 |
| Apr 2, 2024 | Sell -- (Common Stock) | 100 | 671.82 | 80523 |
| Apr 2, 2024 | Sell -- (Common Stock) | 100 | 670.56 | 80623 |
| Mar 2, 2024 | Sell -- (Common Stock) | 50 | 733.37 | 80723 |
| Mar 2, 2024 | Sell -- (Common Stock) | 60 | 732.01 | 80723 |
| Mar 2, 2024 | Sell -- (Common Stock) | 149 | 729.19 | 80783 |
| Mar 2, 2024 | Sell -- (Common Stock) | 651 | 728.48 | 80932 |
| Mar 2, 2024 | Sell -- (Common Stock) | 497 | 727.4 | 81583 |
| Mar 2, 2024 | Sell -- (Common Stock) | 253 | 726.61 | 82080 |
| Mar 2, 2024 | Sell -- (Common Stock) | 100 | 725.51 | 82333 |
| Mar 2, 2024 | Sell -- (Common Stock) | 80 | 724.42 | 82433 |
| Mar 2, 2024 | Sell -- (Common Stock) | 180 | 721.27 | 82513 |
| Mar 2, 2024 | Sell -- (Common Stock) | 80 | 720.75 | 82693 |
| Mar 2, 2024 | Sell -- (Common Stock) | 200 | 719.48 | 82773 |
| Mar 2, 2024 | Sell -- (Common Stock) | 200 | 718.35 | 82973 |
| Feb 9, 2024 | Sell -- (Common Stock) | 728 | 680 | 83173 |
| Feb 6, 2024 | Sell -- (Common Stock) | 867 | 641 | 83901 |
| Feb 2, 2024 | Sell -- (Common Stock) | 200 | 609.39 | 84768 |
| Feb 2, 2024 | Sell -- (Common Stock) | 86 | 607 | 84968 |
| Feb 2, 2024 | Sell -- (Common Stock) | 100 | 606.7 | 85054 |
| Feb 2, 2024 | Sell -- (Common Stock) | 101 | 605.06 | 85154 |
| Feb 2, 2024 | Sell -- (Common Stock) | 204 | 604.38 | 85255 |
| Feb 2, 2024 | Sell -- (Common Stock) | 920 | 603.5 | 85459 |
| Feb 2, 2024 | Sell -- (Common Stock) | 21 | 601.99 | 86379 |
| Feb 2, 2024 | Sell -- (Common Stock) | 868 | 600.37 | 86400 |
| Jan 5, 2024 | Sell -- (Common Stock) | 27613 | 583.14 | 87268 |
| Jan 3, 2024 | Sell -- (Common Stock) | 212 | 620.5 | 114881 |
| Jan 3, 2024 | Sell -- (Common Stock) | 500 | 618.39 | 115093 |
| Jan 3, 2024 | Sell -- (Common Stock) | 200 | 617.43 | 115593 |
| Jan 3, 2024 | Sell -- (Common Stock) | 111 | 616.28 | 115793 |
| Jan 3, 2024 | Sell -- (Common Stock) | 532 | 615.29 | 115904 |
| Jan 3, 2024 | Sell -- (Common Stock) | 111 | 614.34 | 116436 |
| Jan 3, 2024 | Sell -- (Common Stock) | 534 | 613.48 | 116547 |
| Jan 3, 2024 | Sell -- (Common Stock) | 100 | 612.84 | 117081 |
| Jan 3, 2024 | Sell -- (Common Stock) | 100 | 611.37 | 117181 |
| Jan 3, 2024 | Sell -- (Common Stock) | 100 | 610.93 | 117281 |
| Dec 19, 2023 | Sell -- (Common Stock) | 297 | 634.67 | 117381 |
| Dec 19, 2023 | Sell -- (Common Stock) | 581 | 633.28 | 117678 |
| Dec 19, 2023 | Sell -- (Common Stock) | 50 | 632.29 | 118259 |
| Dec 19, 2023 | Sell -- (Common Stock) | 493 | 631.57 | 118309 |
| Dec 19, 2023 | Sell -- (Common Stock) | 235 | 630.55 | 118802 |
| Dec 19, 2023 | Sell -- (Common Stock) | 313 | 629.6 | 119037 |
| Dec 19, 2023 | Sell -- (Common Stock) | 451 | 628.61 | 119350 |
| Dec 19, 2023 | Sell -- (Common Stock) | 80 | 627.99 | 119801 |
| Nov 9, 2023 | Sell -- (Common Stock) | 712 | 490.39 | 119881 |
| Nov 7, 2023 | Sell -- (Common Stock) | 847 | 492.92 | 120593 |
| Oct 3, 2023 | Sell -- (Common Stock) | 905 | 458.3 | 121440 |
| Aug 9, 2023 | Sell -- (Common Stock) | 724 | 530.28 | 122345 |
| Aug 5, 2023 | Sell -- (Common Stock) | 852 | 526.52 | 123069 |
| Jul 22, 2023 | Sell -- (Common Stock) | 7575 | 534.23 | 123921 |
| Jul 4, 2023 | Sell -- (Common Stock) | 905 | 537.79 | 131496 |
| May 10, 2023 | Sell -- (Common Stock) | 711 | 409.78 | 132401 |
| May 5, 2023 | Sell -- (Common Stock) | 854 | 459.6 | 133112 |
| May 4, 2023 | Sell -- (Common Stock) | 2870 | 463.55 | 133966 |
| May 3, 2023 | Acquisition -- (Common Stock) | 5714 | 0 | 136836 |
| Apr 4, 2023 | Sell -- (Common Stock) | 920 | 487.99 | 131122 |
| Feb 17, 2023 | Sell -- (Common Stock) | 1901 | 521.44 | 132042 |
| Feb 17, 2023 | Sell -- (Common Stock) | 3099 | 520.94 | 133896 |
| Feb 14, 2023 | Sell -- (Common Stock) | 1373 | 492.31 | 136995 |
| Feb 9, 2023 | Sell -- (Common Stock) | 5684 | 462.41 | 138368 |
| Feb 8, 2023 | Acquisition -- (Common Stock) | 22857 | 0 | 144052 |
| Feb 7, 2023 | Sell -- (Common Stock) | 608 | 446.87 | 121195 |
| Jan 4, 2023 | Sell -- (Common Stock) | 1884 | 344.96 | 121803 |
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