SEC Form 4 · accession 0001280452-15-000048
MONOLITHIC POWER SYSTEMS, INC. · MPWR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Pilkington Karen A Smith-
Director
Period of report
Feb 19, 2015
Accepted (ET)
Feb 23, 2015 · 2:09 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 Stock | Feb 19, 2015 | M | 705 | $22.01 | A | 21,520 | D | |
| Common Stock | Feb 19, 2015 | S | 705 | $50.9576 | D | 20,815 | D | |
| Common Stock | Feb 19, 2015 | M | 15,000 | $23.05 | A | 35,815 | D | |
| Common Stock | Feb 19, 2015 | S | 15,000 | $50.9576 | D | 20,815 | D |
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) | $22.01 | Feb 19, 2015 | M | 705 | D | May 22, 2009 | May 22, 2015 | Common Stock | 705 | 0 | D |
| Non-Qualified Stock Option (right to buy) | $23.05 | Feb 19, 2015 | M | 15,000 | D | May 22, 2009 | May 22, 2015 | Common Stock | 15,000 | 0 | D |
Explanation of responses
- F1Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.