Filing Details

Accession Number:
0001280452-21-000035
Form Type:
4
Zero Holdings:
No
Publication Time:
2021-02-19 16:38:44
Reporting Period:
2021-02-17
Accepted Time:
2021-02-19 16:38:44
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 5808 Lake Washington Blvd Ne
Kirkland WA 98033
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 2021-02-17 591 $372.78 292,952 No 4 S Direct
Common Stock Disposition 2021-02-17 1,809 $373.68 291,143 No 4 S Direct
Common Stock Disposition 2021-02-17 1,393 $374.71 289,750 No 4 S Direct
Common Stock Disposition 2021-02-17 810 $375.67 288,940 No 4 S Direct
Common Stock Disposition 2021-02-17 3,200 $376.77 285,740 No 4 S Direct
Common Stock Disposition 2021-02-17 4,684 $377.86 281,056 No 4 S Direct
Common Stock Disposition 2021-02-17 3,634 $378.71 277,422 No 4 S Direct
Common Stock Disposition 2021-02-17 3,095 $379.73 274,327 No 4 S Direct
Common Stock Disposition 2021-02-17 1,700 $380.73 272,627 No 4 S Direct
Common Stock Disposition 2021-02-17 410 $381.71 272,217 No 4 S Direct
Common Stock Disposition 2021-02-17 400 $382.90 271,817 No 4 S Direct
Common Stock Disposition 2021-02-17 300 $384.23 271,517 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
No 4 S Direct
No 4 S Direct
Footnotes
  1. 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 $372.17 to $373.08. 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.
  2. 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 $373.18 to $374.18. 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.
  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 $374.20 to $375.19. 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 $375.25 to $376.22. 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 $376.30 to $377.27. 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 $377.31 to $378.25. 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.
  7. 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 $378.33 to $379.30. 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.
  8. 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 $379.34 to $380.33. 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.
  9. 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 $380.40 to $381.19. 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.
  10. 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 $381.45 to $381.95. 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.
  11. 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 $382.53 to $383.03. 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.
  12. 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 $383.68 to $384.54. 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.