SEC Form 4 · accession 0001280452-19-000037
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
Feb 25, 2019
Accepted (ET)
Feb 27, 2019 · 6:27 pm EST
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 | Feb 25, 2019 | S | 19,000 | $137.5535 | D | 1,202,378 | D | |
| Common StockF3 | Feb 26, 2019 | S | 20,558 | $137.1051 | D | 1,181,820 | D | |
| Common StockF4 | Feb 27, 2019 | S | 35,683 | $135.075 | D | 1,146,137 | D | |
| 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
- F1Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.
- 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 $137.29 to $137.93. 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.
- 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 $136.41 to $137.72. 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 $134.56 to $135.83. 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.