Home > Insider Trading > Filing (0001280452-21-000042)

Filing Details

Accession Number:: 0001280452-21-000042
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2021-03-31 17:07:36
Reporting Period:: 2021-02-16

Accepted Time:: 2021-03-31 17:07:36
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

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2021-02-16	89	$239.17	1,091,992	No	4	J	Direct
Common Stock	Disposition	2021-03-30	600	$334.96	1,091,392	No	4	S	Direct
Common Stock	Disposition	2021-03-30	3,200	$336.03	1,088,192	No	4	S	Direct
Common Stock	Disposition	2021-03-30	5,828	$337.12	1,082,364	No	4	S	Direct
Common Stock	Disposition	2021-03-30	19,713	$338.11	1,062,651	No	4	S	Direct
Common Stock	Disposition	2021-03-30	17,593	$338.92	1,045,058	No	4	S	Direct
Common Stock	Disposition	2021-03-30	6,208	$339.83	1,038,850	No	4	S	Direct
Common Stock	Disposition	2021-03-30	1,200	$340.89	1,037,650	No	4	S	Direct
Common Stock	Disposition	2021-03-30	3,310	$342.11	1,034,340	No	4	S	Direct
Common Stock	Disposition	2021-03-30	3,039	$343.22	1,031,301	No	4	S	Direct
Common Stock	Disposition	2021-03-30	2,692	$344.14	1,028,609	No	4	S	Direct
Common Stock	Disposition	2021-03-30	200	$344.74	1,028,409	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
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

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	12,825	Indirect	ZH Family 2020 Trust
Common Stock	133,040	Indirect	by M Hsing 04 Trust

Footnotes

Acquired through the Company's qualified ESPP program.
In accordance with the reporting person's 10b5-1 trading plan.
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 $334.38 to $335.38. 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.
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 $335.45 to $336.43. 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.
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 $336.47 to $337.46. 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.
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 $337.48 to $338.48. 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.
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 $338.49 to $339.48. 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.
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 $339.50 to $340.50. 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.
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 $340.53 to $341.42. 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.
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 $341.54 to $342.54. 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.
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 $342.58 to $343.57. 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.
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 $343.59 to $344.56. 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.
The securities are held by the ZH Family 2020 Irrevocable Trust dated December 18, 2020, of which Michael Hsing and Alliance Trust Company of Nevada are co-trustees.
The securities are held by the Michael Hsing 2004 Tr Dtd 2/23/04 Michael Hsing TTEE Trust dated February 23, 2004, of which Michael Hsing is the trustee.