Filing Details

Accession Number:
0001280452-12-000320
Form Type:
4
Zero Holdings:
No
Publication Time:
2012-12-03 20:21:49
Reporting Period:
2012-11-29
Filing Date:
2012-12-03
Accepted Time:
2012-12-03 20:21:49
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
1312593 Saria Tseng 79 Great Oaks Blvd
San Jose CA 95119
Vp & General Counsel No Yes 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 2012-11-29 20,000 $8.00 106,915 No 4 M Direct
Common Stock Disposition 2012-11-29 20,000 $21.00 86,915 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 2012-11-29 20,000 $0.00 20,000 $8.00
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
19,001 2005-10-15 2014-11-17 No 4 M Direct