SEC Form 4 · accession 0001280452-18-000072
MONOLITHIC POWER SYSTEMS, INC. · MPWR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Michael Hsing
Officer — CEO · Director
Period of report
May 3, 2018
Accepted (ET)
May 7, 2018 · 5:19 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001280452
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | May 3, 2018 | S | 11,665 | $118.4314 | D | 1,213,124 | D | |
| Common Stock | May 4, 2018 | S | 6,916 | $122.6625 | D | 1,206,208 | D | |
| Common Stock | holding | — | — | — | 133,040 | I | by M Hsing 04 Trust |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.