Filing Details

Accession Number:
0001280452-21-000036
Form Type:
4
Zero Holdings:
No
Publication Time:
2021-02-23 18:08:09
Reporting Period:
2021-02-16
Accepted Time:
2021-02-23 18:08:09
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
1415033 Theodore Blegen 5808 Lake Washington Blvd Ne
Kirkland WA 98033
Cfo No Yes No No
Transaction Summary
Sold: 4,299 shares Avg. Price: $386.99 Total Value: $1,663,659.39
Number of Shares After Transactions: 158,899 shares
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 2021-02-16 89 $239.17 163,198 No 4 J Direct
Common Stock Disposition 2021-02-19 101 $379.93 163,097 No 4 S Direct
Common Stock Disposition 2021-02-19 50 $381.29 163,047 No 4 S Direct
Common Stock Disposition 2021-02-19 300 $382.62 162,747 No 4 S Direct
Common Stock Disposition 2021-02-19 465 $383.84 162,282 No 4 S Direct
Common Stock Disposition 2021-02-19 208 $385.00 162,074 No 4 S Direct
Common Stock Disposition 2021-02-19 400 $386.11 161,674 No 4 S Direct
Common Stock Disposition 2021-02-19 1,031 $387.29 160,643 No 4 S Direct
Common Stock Disposition 2021-02-19 952 $388.36 159,691 No 4 S Direct
Common Stock Disposition 2021-02-19 250 $389.11 159,441 No 4 S Direct
Common Stock Disposition 2021-02-19 300 $390.41 159,141 No 4 S Direct
Common Stock Disposition 2021-02-19 50 $391.36 159,091 No 4 S Direct
Common Stock Disposition 2021-02-19 100 $392.50 158,991 No 4 S Direct
Common Stock Disposition 2021-02-19 92 $393.44 158,899 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
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. Acquired through the Company's qualified ESPP program.
  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 $382.10 to $383.08. 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.
  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 $383.33 to $384.32. 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 $384.51 to $385.17. 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 $385.69 to $386.39. 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 $386.76 to $387.71. 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 $387.84 to $388.80. 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 $388.99 to $389.24. 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 $390.14 to $390.77. 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 $392.19 to $392.80. 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.