SEC Form 4 · accession 0001280452-15-000080
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 4, 2015
Accepted (ET)
May 6, 2015 · 6:36 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 4, 2015 | S | 1,162 | $52.70 | D | 1,088,793 | D | |
| Common Stock | May 5, 2015 | S | 2,679 | $52.54 | D | 1,086,114 | D | |
| Common Stock | May 6, 2015 | S | 3,113 | $51.3586 | D | 1,083,001 | D | |
| Common Stock | May 6, 2015 | S | 5,678 | $51.3586 | D | 1,077,323 | D | |
| Common Stock | holding | — | — | — | 29,000 | 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.