Filing Details

Accession Number:
0001280452-14-000102
Form Type:
4
Zero Holdings:
No
Publication Time:
2014-05-06 21:43:12
Reporting Period:
2014-05-02
Filing Date:
2014-05-06
Accepted Time:
2014-05-06 20:43:12
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 Disposition 2014-05-02 1,350 $36.77 58,497 No 4 S Direct
Common Stock Disposition 2014-05-02 1,148 $36.71 57,349 No 4 S Direct
Common Stock Disposition 2014-05-02 53 $36.51 57,296 No 4 S Direct
Common Stock Disposition 2014-05-05 463 $36.25 56,833 No 4 S Direct
Common Stock Disposition 2014-05-05 23 $36.25 56,810 No 4 S Direct
Common Stock Disposition 2014-05-05 724 $36.25 56,086 No 4 S Direct
Common Stock Disposition 2014-05-05 430 $36.55 55,656 No 4 S Direct
Common Stock Disposition 2014-05-05 5,056 $36.68 50,600 No 4 S Direct
Common Stock Disposition 2014-05-06 701 $36.41 49,899 No 4 S Direct
Common Stock Disposition 2014-05-06 644 $36.62 49,255 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 2,000 Indirect S.Tseng Charity Fund
Footnotes
  1. Shares sold to pay tax obligations resulting from the vesting of restricted stock units.
  2. In accordance with the reporting person's 10b5-1 trading plan.
  3. The 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 $36.56 to $36.91. 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.
  4. The 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 $36.18 to $36.89. 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.
  5. The 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 $36.23 to $37.12. 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.
  6. The 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 $36.49 to $36.73. 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.