SEC Form 4 · accession 0001214659-26-010630
MONOLITHIC POWER SYSTEMS, INC. · MPWR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Robert W Dean II
Officer — Interim CFO
Period of report
Aug 17, 2026
Accepted (ET)
Aug 19, 2026 · 8:44 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001280452
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Aug 17, 2026 | S | 6 | $1,413.64 | D | 7,126 | D | |
| Common Stock | holding | — | — | — | 65 | I | Held by Parent & Daughter |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The reported sale was to cover tax withholding obligations upon the vesting of restricted stock units.