Filing Details

Accession Number:
0001280452-12-000244
Form Type:
4
Zero Holdings:
No
Publication Time:
2012-08-29 15:40:09
Reporting Period:
2012-08-27
Filing Date:
2012-08-29
Accepted Time:
2012-08-29 14:40:09
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1280452 Monolithic Power Systems Inc MPWR Semiconductors & Related Devices (3674) 770466789
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1191548 A Karen Pilkington Smith- 79 Great Oaks Blvd
San Jose CA 95119
Yes No No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2012-08-27 25,000 $12.86 35,535 No 4 M Direct
Common Stock Disposition 2012-08-27 25,000 $23.00 10,535 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 S Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Non-Qualified Stock Option (right to buy) Disposition 2012-08-27 25,000 $0.00 25,000 $12.86
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
0 2010-02-18 2016-02-18 No 4 M Direct
Footnotes
  1. In accordance with the reporting person's 10b5-1 trading plan.