MONOLITHIC POWER SYSTEMS INC - MPWR
All tracked SEC files for this issuer. Showing up to 200 latest records.
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Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 97
Latest filed: May 20, 2026
| Form | Count |
|---|---|
| 4 | 50 |
| 144 | 38 |
| 8-K | 4 |
| SCHEDULE 13G/A | 3 |
| SCHEDULE 13G | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| May 20, 2026 | 4 | May 18, 2026 | 0001214659-26-006625 | View |
| May 20, 2026 | 4 | May 18, 2026 | 0001214659-26-006622 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001214659-26-006583 | View |
| May 18, 2026 | 144 | — | 0001280452-26-000008 | View |
| May 18, 2026 | 144 | — | 0001950047-26-004722 | View |
| May 15, 2026 | 4 | May 13, 2026 | 0001214659-26-006521 | View |
| May 15, 2026 | 4 | May 13, 2026 | 0001214659-26-006498 | View |
| May 15, 2026 | 144 | — | 0001950047-26-004639 | View |
| May 08, 2026 | 4 | May 06, 2026 | 0001214659-26-005860 | View |
| May 08, 2026 | 4 | May 06, 2026 | 0001214659-26-005811 | View |
| May 08, 2026 | 4 | May 06, 2026 | 0001214659-26-005858 | View |
| May 06, 2026 | 144 | — | 0001560945-26-000004 | View |
| May 06, 2026 | 4 | May 05, 2026 | 0001214659-26-005690 | View |
| May 06, 2026 | 4 | May 05, 2026 | 0001214659-26-005668 | View |
| May 06, 2026 | 144 | — | 0001950047-26-004133 | View |
| May 06, 2026 | 144 | — | 0001950047-26-004150 | View |
| May 06, 2026 | 144 | — | 0001950047-26-004159 | View |
| May 06, 2026 | 4 | May 04, 2026 | 0001214659-26-005640 | View |
| May 05, 2026 | 144 | — | 0001950047-26-004086 | View |
| May 05, 2026 | 144 | — | 0001969223-26-000496 | View |
| May 01, 2026 | 144 | — | 0001950047-26-003889 | View |
| Apr 30, 2026 | 8-K | Apr 30, 2026 | 0001437749-26-014182 | View |
| Apr 30, 2026 | SCHEDULE 13G | — | 0002100119-26-000862 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100121-26-000474 | View |
| Apr 10, 2026 | 4 | Apr 08, 2026 | 0001214659-26-004535 | View |
| Apr 08, 2026 | 144 | — | 0001950047-26-003339 | View |
| Apr 08, 2026 | 4 | Apr 06, 2026 | 0001214659-26-004460 | View |
| Apr 06, 2026 | 144 | — | 0001950047-26-003278 | View |
| Apr 03, 2026 | 4 | Apr 01, 2026 | 0001214659-26-004341 | View |
| Apr 03, 2026 | 4 | Apr 01, 2026 | 0001214659-26-004332 | View |
| Apr 01, 2026 | 4 | Mar 30, 2026 | 0001214659-26-004185 | View |
| Apr 01, 2026 | 144 | — | 0001950047-26-003177 | View |
| Apr 01, 2026 | 144 | — | 0001950047-26-003123 | View |
| Mar 30, 2026 | 144 | — | 0001950047-26-003084 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001833 | View |
| Mar 24, 2026 | 4 | Mar 20, 2026 | 0001214659-26-003765 | View |
| Mar 20, 2026 | 144 | — | 0001969223-26-000378 | View |
| Mar 02, 2026 | 144 | — | 0001950047-26-001939 | View |
| Feb 27, 2026 | 8-K | Feb 26, 2026 | 0001437749-26-006112 | View |
| Feb 17, 2026 | 4 | Feb 12, 2026 | 0001214659-26-002084 | View |
| Feb 13, 2026 | 4 | Feb 11, 2026 | 0001214659-26-001738 | View |
| Feb 12, 2026 | 4 | Feb 10, 2026 | 0001214659-26-001587 | View |
| Feb 12, 2026 | 144 | — | 0001950047-26-001207 | View |
| Feb 12, 2026 | 4 | Feb 11, 2026 | 0001214659-26-001626 | View |
| Feb 11, 2026 | 144 | — | 0001950047-26-001171 | View |
| Feb 11, 2026 | 4 | Feb 09, 2026 | 0001214659-26-001517 | View |
| Feb 10, 2026 | 144 | — | 0001969223-26-000135 | View |
| Feb 10, 2026 | 144 | — | 0001950047-26-001120 | View |
| Feb 10, 2026 | 4 | Feb 06, 2026 | 0001214659-26-001447 | View |
| Feb 10, 2026 | 4 | Feb 06, 2026 | 0001214659-26-001448 | View |
| Feb 10, 2026 | 4 | Feb 06, 2026 | 0001214659-26-001449 | View |
| Feb 10, 2026 | 4 | Feb 06, 2026 | 0001214659-26-001450 | View |
| Feb 10, 2026 | 4 | Feb 06, 2026 | 0001214659-26-001451 | View |
| Feb 06, 2026 | 144 | — | 0001360833-26-000002 | View |
| Feb 06, 2026 | 144 | — | 0001415033-26-000002 | View |
| Feb 06, 2026 | 144 | — | 0001308676-26-000002 | View |
| Feb 06, 2026 | 144 | — | 0001308647-26-000002 | View |
| Feb 06, 2026 | 144 | — | 0001312593-26-000002 | View |
| Feb 05, 2026 | SCHEDULE 13G/A | — | 0000315066-26-000496 | View |
| Feb 05, 2026 | 8-K | Feb 03, 2026 | 0001437749-26-003191 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001252 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001253 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001254 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001255 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001256 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001257 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001258 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001259 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001260 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001261 | View |
| Feb 05, 2026 | 4 | Feb 03, 2026 | 0001214659-26-001262 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0001214659-26-001149 | View |
| Feb 04, 2026 | 144 | — | 0001308647-26-000001 | View |
| Feb 04, 2026 | 144 | — | 0001312593-26-000001 | View |
| Feb 04, 2026 | 144 | — | 0001360833-26-000001 | View |
| Feb 04, 2026 | 144 | — | 0001415033-26-000001 | View |
| Feb 04, 2026 | 144 | — | 0001308676-26-000001 | View |
| Feb 02, 2026 | 144 | — | 0001950047-26-000786 | View |
| Jan 08, 2026 | SCHEDULE 13G/A | — | 0002012383-26-000053 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001214659-26-000197 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001214659-26-000208 | View |
| Jan 02, 2026 | 144 | — | 0001950047-26-000010 | View |
| Dec 30, 2025 | 4 | Dec 24, 2025 | 0001214659-25-018632 | View |
| Dec 29, 2025 | 144 | — | 0001950047-25-010697 | View |
| Dec 29, 2025 | 4 | Dec 24, 2025 | 0001214659-25-018478 | View |
| Dec 12, 2025 | 8-K | Dec 12, 2025 | 0001437749-25-037726 | View |
| Dec 11, 2025 | 4 | Dec 09, 2025 | 0001214659-25-017938 | View |
| Dec 02, 2025 | 4 | Dec 01, 2025 | 0001214659-25-017534 | View |
| Dec 01, 2025 | 144 | — | 0001950047-25-009499 | View |
| Nov 28, 2025 | 4 | Nov 25, 2025 | 0001214659-25-017303 | View |
| Nov 28, 2025 | 4 | Nov 26, 2025 | 0001214659-25-017305 | View |
| Nov 26, 2025 | 144 | — | 0001950047-25-009453 | View |
| Nov 25, 2025 | 4 | Nov 24, 2025 | 0001214659-25-017225 | View |
| Nov 25, 2025 | 4 | Nov 25, 2025 | 0001214659-25-017235 | View |
| Nov 25, 2025 | 144 | — | 0001950047-25-009392 | View |
| Nov 24, 2025 | 4 | Nov 21, 2025 | 0001214659-25-017110 | View |
| Nov 24, 2025 | 144 | — | 0001950047-25-009302 | View |