# Monolithic Power Systems, Inc.: filings

MPWR · Nasdaq · CIK 1280452 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/mpwr.md) · [Financials](/companies/mpwr/financials.md) · [Filings](/companies/mpwr/filings.md) · [Insiders](/companies/mpwr/insiders.md)

## Reports and events: 241 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 1821, 144 223, 8-K 151, SC 13G/A 66, 10-Q 53, 4/A 40, DEFA14A 29, SC 13G 24, 10-K 18, DEF 14A 18, SD 13, 3 9, S-8 8, 5 6, ARS 4, SCHEDULE 13G/A 4, UPLOAD 4, CORRESP 3, 144/A 2, SCHEDULE 13G 2, 10-Q/A 1, DEFR14A 1, PRE 14A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-29 | 16:01 ET | [8-K](/filings/0001628280-26-068202.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-26-068202 |
| 2026-09-10 | 16:01 ET | [8-K](/filings/0001628280-26-061318.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-061318 |
| 2026-08-05 | 16:01 ET | [10-Q](/filings/0001628280-26-053275.md) | Quarterly report, period 2026-06-30 | 0001628280-26-053275 |
| 2026-07-30 | 16:01 ET | [8-K](/filings/0001628280-26-051029.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-051029 |
| 2026-06-12 | 16:01 ET | [8-K](/filings/0001628280-26-042820.md) | 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-042820 |
| 2026-05-04 | 16:01 ET | [10-Q](/filings/0001437749-26-014647.md) | Quarterly report, period 2026-03-31 | 0001437749-26-014647 |
| 2026-04-30 | 16:01 ET | [8-K](/filings/0001437749-26-014182.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-26-014182 |
| 2026-04-30 | 12:34 ET | [DEF 14A](/filings/0001437749-26-014084.md) | Proxy statement, period 2026-06-11 | 0001437749-26-014084 |
| 2026-02-27 | 16:33 ET | [10-K](/filings/0001437749-26-006113.md) | Annual report, period 2025-12-31 | 0001437749-26-006113 |
| 2026-02-27 | 16:31 ET | [8-K](/filings/0001437749-26-006112.md) | 4.02 Non-reliance on financial statements | 0001437749-26-006112 |
| 2026-02-05 | 16:01 ET | [8-K](/filings/0001437749-26-003191.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-26-003191 |
| 2025-12-12 | 16:01 ET | [8-K](/filings/0001437749-25-037726.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-25-037726 |
| 2025-11-21 | 16:00 ET | [8-K](/filings/0001437749-25-035995.md) | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001437749-25-035995 |
| 2025-11-05 | 16:02 ET | [10-Q](/filings/0001437749-25-033332.md) | Quarterly report, period 2025-09-30 | 0001437749-25-033332 |
| 2025-10-30 | 16:01 ET | [8-K](/filings/0001437749-25-032411.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-25-032411 |
| 2025-09-11 | 16:01 ET | [8-K](/filings/0001437749-25-028841.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-25-028841 |
| 2025-08-04 | 16:01 ET | [10-Q](/filings/0001437749-25-024602.md) | Quarterly report, period 2025-06-30 | 0001437749-25-024602 |
| 2025-07-31 | 16:01 ET | [8-K](/filings/0001437749-25-024185.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-25-024185 |
| 2025-06-16 | 16:06 ET | [8-K](/filings/0001437749-25-020473.md) | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-25-020473 |
| 2025-05-05 | 16:01 ET | [10-Q](/filings/0001437749-25-014522.md) | Quarterly report, period 2025-03-31 | 0001437749-25-014522 |
| 2025-05-01 | 16:01 ET | [8-K](/filings/0001437749-25-014082.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-25-014082 |
| 2025-04-30 | 13:21 ET | [DEF 14A](/filings/0001437749-25-013745.md) | Proxy statement, period 2025-06-12 | 0001437749-25-013745 |
| 2025-03-26 | 14:49 ET | [8-K](/filings/0001437749-25-009324.md) | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001437749-25-009324 |
| 2025-03-20 | 11:50 ET | [8-K](/filings/0001437749-25-008519.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001437749-25-008519 |
| 2025-03-03 | 15:14 ET | [10-K](/filings/0001437749-25-005903.md) | Annual report, period 2024-12-31 | 0001437749-25-005903 |
| 2025-02-06 | 16:01 ET | [8-K](/filings/0001437749-25-003024.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-25-003024 |
| 2024-12-13 | 16:01 ET | [8-K](/filings/0001437749-24-037471.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-24-037471 |
| 2024-11-12 | 09:00 ET | [8-K](/filings/0001437749-24-034352.md) | 7.01 Regulation FD disclosure | 0001437749-24-034352 |
| 2024-11-06 | 16:02 ET | [10-Q](/filings/0001437749-24-033608.md) | Quarterly report, period 2024-09-30 | 0001437749-24-033608 |
| 2024-10-30 | 16:01 ET | [8-K](/filings/0001437749-24-032609.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-24-032609 |
| 2024-10-22 | 17:13 ET | [8-K](/filings/0001437749-24-031789.md) | 5.02 Departure or appointment of officers or directors | 0001437749-24-031789 |
| 2024-09-13 | 16:01 ET | [8-K](/filings/0001437749-24-029143.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-24-029143 |
| 2024-08-02 | 16:01 ET | [10-Q](/filings/0001437749-24-024477.md) | Quarterly report, period 2024-06-30 | 0001437749-24-024477 |
| 2024-08-01 | 16:01 ET | [8-K](/filings/0001437749-24-024285.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-24-024285 |
| 2024-06-14 | 17:25 ET | [8-K](/filings/0001437749-24-020388.md) | 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-24-020388 |
| 2024-05-03 | 16:02 ET | [10-Q](/filings/0001437749-24-014648.md) | Quarterly report, period 2024-03-31 | 0001437749-24-014648 |
| 2024-05-01 | 16:01 ET | [8-K](/filings/0001437749-24-014156.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-24-014156 |
| 2024-04-29 | 15:06 ET | [DEF 14A](/filings/0001437749-24-013657.md) | Proxy statement, period 2024-06-13 | 0001437749-24-013657 |
| 2024-02-29 | 16:55 ET | [10-K](/filings/0001437749-24-006133.md) | Annual report, period 2023-12-31 | 0001437749-24-006133 |
| 2024-02-07 | 16:01 ET | [8-K](/filings/0001437749-24-003353.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-24-003353 |
| 2023-12-15 | 16:01 ET | [8-K](/filings/0001437749-23-034560.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-23-034560 |
| 2023-11-08 | 16:02 ET | [10-Q](/filings/0001437749-23-030929.md) | Quarterly report, period 2023-09-30 | 0001437749-23-030929 |
| 2023-10-30 | 16:01 ET | [8-K](/filings/0001437749-23-029394.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-23-029394 |
| 2023-09-15 | 16:01 ET | [8-K](/filings/0001437749-23-026015.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-23-026015 |
| 2023-08-04 | 16:02 ET | [10-Q](/filings/0001437749-23-022148.md) | Quarterly report, period 2023-06-30 | 0001437749-23-022148 |
| 2023-07-31 | 16:01 ET | [8-K](/filings/0001437749-23-021166.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-23-021166 |
| 2023-06-15 | 16:03 ET | [8-K](/filings/0001437749-23-017560.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0001437749-23-017560 |
| 2023-05-05 | 16:02 ET | [10-Q](/filings/0001437749-23-012797.md) | Quarterly report, period 2023-03-31 | 0001437749-23-012797 |
| 2023-05-04 | 16:01 ET | [8-K](/filings/0001437749-23-012554.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-23-012554 |
| 2023-05-01 | 14:14 ET | [DEF 14A](/filings/0001437749-23-011840.md) | Proxy statement | 0001437749-23-011840 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 29, 2026, 18:07 ET. No prices; not investment advice.