SEC Form 4 · accession 0001280452-15-000086
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 7, 2015
Accepted (ET)
May 11, 2015 · 6:33 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 StockF1 | May 7, 2015 | S | 2,000 | $51.966 | D | 254,483 | D | |
| Common StockF2 | May 7, 2015 | S | 2,779 | $51.7857 | D | 251,704 | D | |
| Common Stock | May 8, 2015 | S | 1,852 | $51.79 | D | 249,852 | D | |
| Common Stock | May 8, 2015 | S | 88 | $51.79 | D | 249,764 | D | |
| Common Stock | May 8, 2015 | S | 1,744 | $52.5201 | D | 248,020 | D | |
| Common Stock | May 11, 2015 | S | 1,757 | $52.408 | D | 246,263 | D | |
| Common Stock | holding | — | — | — | 1,667 | I | by Spouse |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The 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 $51.90 to $52.07. 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.
- 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 $51.76 to $51.79. 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.