MPWR · CIK 0001280452
MONOLITHIC POWER SYSTEMS INC (MPWR) SEC Filings
Browse 2982 SEC filings for MONOLITHIC POWER SYSTEMS INC, covering Jul 13, 2004 through Jul 8, 2026, organized by filing purpose with direct links to the original EDGAR documents.
Indexed filings
2,982
Filed in the last 12 months
190
History covered
2004–2026
Latest filing
SCHEDULE 13G/A
Latest important filings
Jump directly to the most recent annual, quarterly, and current reports.
Latest annual report
10-K
Annual report · Feb 27, 2026
Open original filingLatest quarterly report
10-Q
Quarterly report · May 4, 2026
Open original filingLatest company update
8-K
Shareholder vote; Other material event · Jun 12, 2026
Open original filingComplete filing history
Search by form or description, filter by purpose and year, and open the original SEC document.
50 filings
All categories
Search by form or description, filter by purpose and year, and open the original SEC document.
| Form | Description | Period ended | Filed |
|---|---|---|---|
| SCHEDULE 13G/A Amended | SCHEDULE 13G filing | — | Jul 8, 2026 |
| 4 | PRIMARY DOCUMENT | Jul 1, 2026 | Jul 6, 2026 |
| 8-K | Shareholder vote; Other material event | Jun 11, 2026 | Jun 12, 2026 |
| 4 | PRIMARY DOCUMENT | Jun 1, 2026 | Jun 3, 2026 |
| 4 | PRIMARY DOCUMENT | May 29, 2026 | Jun 2, 2026 |
| 144 | Notice of proposed securities sale | — | Jun 1, 2026 |
| 4 | PRIMARY DOCUMENT | May 27, 2026 | May 29, 2026 |
| SD | Specialized disclosure report | — | May 29, 2026 |
| 4 | PRIMARY DOCUMENT | May 26, 2026 | May 28, 2026 |
| 144 | Notice of proposed securities sale | — | May 28, 2026 |
| 4 | PRIMARY DOCUMENT | May 26, 2026 | May 27, 2026 |
| 4 | PRIMARY DOCUMENT | May 22, 2026 | May 27, 2026 |
| 144 | Notice of proposed securities sale | — | May 26, 2026 |
| 144 | Notice of proposed securities sale | — | May 26, 2026 |
| 144 | Notice of proposed securities sale | — | May 22, 2026 |
| 4 | PRIMARY DOCUMENT | May 18, 2026 | May 20, 2026 |
| 4 | PRIMARY DOCUMENT | May 18, 2026 | May 20, 2026 |
| 4 | PRIMARY DOCUMENT | May 15, 2026 | May 19, 2026 |
| 144 | Notice of proposed securities sale | — | May 18, 2026 |
| 144 | Notice of proposed securities sale | — | May 18, 2026 |
| 4 | PRIMARY DOCUMENT | May 13, 2026 | May 15, 2026 |
| 144 | Notice of proposed securities sale | — | May 15, 2026 |
| 4 | PRIMARY DOCUMENT | May 13, 2026 | May 15, 2026 |
| 4 | PRIMARY DOCUMENT | May 6, 2026 | May 8, 2026 |
| 4 | PRIMARY DOCUMENT | May 6, 2026 | May 8, 2026 |
Page 1 of 2
Recent filing activity
Annual filing counts derived from this company's SEC history.
2026
103 filings
2025
138 filings
2024
186 filings
2023
175 filings
2022
98 filings
2021
140 filings
2020
131 filings
2019
134 filings
Sources and methodology
How this filing index is assembled and checked.
Filing metadata comes from SEC EDGAR submissions. Categories and plain-language labels are generated deterministically from SEC form and item codes; filing content is not summarized on this page.
Index updated: 7/15/2026
For research and education only. Always review the original SEC filing before making a decision.