Filing Details

Accession Number:
0001280452-20-000060
Form Type:
4
Zero Holdings:
No
Publication Time:
2020-04-02 17:44:56
Reporting Period:
2020-02-18
Accepted Time:
2020-04-02 17:44:56
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
1308676 Michael Hsing 5808 Lake Washington Blvd Ne
Kirkland WA 98033
Ceo Yes 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 2020-02-18 172 $123.37 1,223,252 No 4 J Direct
Common Stock Disposition 2020-03-31 23,258 $170.00 1,199,994 No 4 S Direct
Common Stock Disposition 2020-04-01 11,150 $162.58 1,188,844 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 J Direct
No 4 S Direct
No 4 S Direct
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 133,040 Indirect by M Hsing 04 Trust
Footnotes
  1. Acquired through the Company's qualified ESPP program.
  2. In accordance with the reporting person's 10b5-1 trading plan.
  3. The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.