Filing Details

Accession Number:
0001280452-14-000017
Form Type:
4
Zero Holdings:
No
Publication Time:
2014-02-06 21:56:43
Reporting Period:
2014-02-04
Filing Date:
2014-02-06
Accepted Time:
2014-02-06 21:56:43
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 2014-02-04 1,477 $32.19 42,375 No 4 S Direct
Common Stock Acquisiton 2014-02-04 46,382 $0.00 88,757 No 4 A Direct
Common Stock Acquisiton 2014-02-04 10,944 $0.00 99,701 No 4 A Direct
Common Stock Disposition 2014-02-05 8,824 $31.17 90,877 No 4 S Direct
Common Stock Disposition 2014-02-06 504 $31.27 90,373 No 4 S Direct
Common Stock Disposition 2014-02-06 1,992 $32.00 88,381 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct
No 4 A Direct
No 4 A 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. On February 14, 2012, the reporting person was granted a target of 25,665 shares of restricted stock units subject to satisfaction of pre-determined, performance-based vesting criteria. On February 4, 2014, the Company's Board of Directors determined that those performance criteria for the restricted stock units had been satisfied, which resulted in 18,632 additional shares being achieved and granted to the reporting person. In addition, 2,085 shares were granted as a result of an equitable stock dividend adjustment approved by the Board of Directors on December 28, 2012. Of the restricted stock units that were awarded, 23,192 will vest immediately and 23,190 will vest quarterly in the next two years.
  3. 1/8 of the Restricted Stock Units shall vest quarterly following the Vesting Commencement Date, provided that the Grantee continues to be a Service Provider from the Grant Date through each applicable vesting date. Additionally, 32,831 shares of Restricted Stock Units were granted and shall be subject to satisfaction of performance-based vesting criteria based on achievement of certain long term Company performance targets, as determined by the Compensation Committee of the Company, and additional time vesting subsequent to the achievement of those performance targets, provided that the Grantee continues to be a Service Provider from the grant date through each applicable vesting date.
  4. In accordance with the reporting person's 10b5-1 trading plan.