SEC Form 4 · accession 0001280452-15-000082
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
May 4, 2015
Accepted (ET)
May 6, 2015 · 6:43 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 StockF2 | May 4, 2015 | S | 2,064 | $52.7749 | D | 261,757 | D | |
| Common Stock | May 4, 2015 | S | 353 | $52.70 | D | 261,404 | D | |
| Common Stock | May 5, 2015 | S | 814 | $52.54 | D | 260,590 | D | |
| Common Stock | May 5, 2015 | S | 730 | $52.54 | D | 259,860 | D | |
| Common Stock | May 6, 2015 | S | 1,196 | $51.3586 | D | 258,664 | D | |
| Common Stock | May 6, 2015 | S | 2,181 | $51.3586 | D | 256,483 | D | |
| Common Stock | May 4, 2015 | S | 113 | $52.70 | D | 1,667 | I | by Spouse |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1In accordance with the reporting person's 10b5-1 trading plan.
- F2The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $52.62 to $52.93. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- F3Shares sold to pay tax obligations resulting from the vesting of restricted stock units.