MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2022

Feb 24, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2022-02-22

Reporting Person: BLEGEN THEODORE (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-02-22	Common Stock	S	60	$445.22	Disposed	134647	Direct
2022-02-22	Common Stock	S	60	$447.07	Disposed	134587	Direct
2022-02-22	Common Stock	S	81	$448.33	Disposed	134506	Direct
2022-02-22	Common Stock	S	544	$449.84	Disposed	133962	Direct
2022-02-22	Common Stock	S	137	$450.48	Disposed	133825	Direct
2022-02-22	Common Stock	S	95	$451.58	Disposed	133730	Direct
2022-02-22	Common Stock	S	80	$452.60	Disposed	133650	Direct
2022-02-22	Common Stock	S	80	$453.91	Disposed	133570	Direct
2022-02-22	Common Stock	S	122	$455.27	Disposed	133448	Direct
2022-02-22	Common Stock	S	40	$456.06	Disposed	133408	Direct
2022-02-22	Common Stock	S	60	$457.48	Disposed	133348	Direct
2022-02-22	Common Stock	S	40	$458.19	Disposed	133308	Direct
2022-02-22	Common Stock	S	60	$459.84	Disposed	133248	Direct
2022-02-22	Common Stock	S	60	$461.14	Disposed	133188	Direct
2022-02-22	Common Stock	S	20	$463.65	Disposed	133168	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5331	Indirect
Common Stock	5331	Indirect

Footnotes

F1: Shares sold pursuant to the reporting person's 10b5-1 plan.

F2: 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 $444.82 to $445.73. 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.

F3: Ending balance includes 55 shares acquired on February 15, 2022 through the Company's qualified ESPP program.

F4: 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 $446.85 to $447.47. 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.

F5: 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 $447.96 to $448.70. 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.

F6: 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 $449.18 to $450.17. 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.

F7: 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 $450.26 to $450.74. 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.

F8: 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 $451.31 to $452.13. 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.

F9: 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 $452.34 to $453.04. 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.

F10: 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 $453.39 to $454.38. 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.

F11: 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 $454.83 to $455.74. 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.

F12: 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 $455.96 to $456.15. 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.

F13: 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 $457.03 to $457.82. 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.

F14: 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 $458.12 to $458.25. 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.

F15: 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 $459.47 to $460.32. 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.

F16: 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 $460.79 to $461.65. 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.