SEC Form 4 · accession 0001209191-15-032429
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
Apr 1, 2015
Accepted (ET)
Apr 3, 2015 · 5:33 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 Stock | Apr 1, 2015 | M | 14,117 | $15.03 | A | 1,052,008 | D | |
| Common StockF2 | Apr 1, 2015 | S | 9,438 | $52.0002 | D | 1,042,570 | D | |
| Common Stock | Apr 1, 2015 | M | 74,154 | $15.03 | A | 1,116,724 | D | |
| Common StockF3 | Apr 1, 2015 | S | 49,572 | $52.0151 | D | 1,067,152 | D | |
| Common Stock | Apr 2, 2015 | M | 107,030 | $15.03 | A | 1,174,182 | D | |
| Common StockF4 | Apr 2, 2015 | S | 71,550 | $52.0021 | D | 1,102,632 | 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
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-Qualified Stock Option (right to buy)F5 | $15.03 | Apr 1, 2015 | M | 14,117 | D | Dec 28, 2012 | Oct 28, 2015 | Common Stock | 14,117 | 0 | D |
| Non-Qualified Stock Option (right to buy)F6 | $15.03 | Apr 1, 2015 | M | 74,154 | D | Oct 28, 2010 | Oct 28, 2015 | Common Stock | 74,154 | 225,846 | D |
| Non-Qualified Stock Option (right to buy)F6 | $15.03 | Apr 2, 2015 | M | 107,030 | D | Oct 28, 2010 | Oct 28, 2015 | Common Stock | 107,030 | 118,816 | D |
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 $52.00 to $52.02. 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.
- F3The 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 $52.00 to $52.60. 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.
- F4The 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 $52.00 to $52.05. 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.
- F5Original option grant was for 14,117 shares. One-hundred percent (100%) of the Shares subject to the Option shall vest immediately. All outstanding options have fully vested.
- F6Original option grant was for 300,000 shares. Fifty percent (50%) of the Shares subject to the Option shall vest twenty-four (24) months after the Vesting Commencement Date, and 1/48 of the Shares subject to the Option shall vest monthly thereafter on the same day of the month as the Vesting Commencement Date, subject to the Optionee continuing to be a Service Provider on such dates. All outstanding options have fully vested.