SEC Form 4 · accession 0001280452-15-000026
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
Feb 6, 2015
Accepted (ET)
Feb 9, 2015 · 8:25 pm EST
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 | Feb 6, 2015 | S | 2,060 | $47.39 | D | 591,809 | D | |
| Common Stock | Feb 9, 2015 | S | 4,363 | $47.5574 | D | 587,446 | D | |
| Common Stock | Feb 9, 2015 | S | 206 | $47.557 | D | 587,240 | D | |
| Common Stock | holding | — | — | — | 465,566 | I | By Jointly w/Spouse | |
| Common Stock | holding | — | — | — | 133,040 | I | By S. Hsing 04 Trust | |
| Common Stock | holding | — | — | — | 26,301 | I | Hsing Fam Foundation | |
| 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
- F1Shares sold to pay tax obligations resulting from the vesting of restricted stock units.