SEC Form 4 · accession 0001280452-18-000073
MONOLITHIC POWER SYSTEMS, INC. · MPWR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Deming Xiao
Officer — Pres. of MPS Asia Operations
Period of report
Feb 15, 2018
Accepted (ET)
May 7, 2018 · 5:20 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 | Feb 15, 2018 | J | 162 | $86.513 | A | 340,198 | D | |
| Common Stock | May 3, 2018 | S | 3,542 | $118.4314 | D | 336,656 | D | |
| Common Stock | May 4, 2018 | S | 2,101 | $122.6625 | D | 334,555 | D | |
| Common Stock | holding | — | — | — | 1,101 | I | by Spouse |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Acquired through the Company's qualified ESPP program.
- F2The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.