MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2024

Mar 4, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2024-03-01

Reporting Person: Hsing Michael (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-03-01	Common Stock	S	100	$716.82	Disposed	915093	Direct
2024-03-01	Common Stock	S	100	$717.31	Disposed	914993	Direct
2024-03-01	Common Stock	S	200	$718.52	Disposed	914793	Direct
2024-03-01	Common Stock	S	825	$719.47	Disposed	913968	Direct
2024-03-01	Common Stock	S	312	$720.27	Disposed	913656	Direct
2024-03-01	Common Stock	S	441	$721.60	Disposed	913215	Direct
2024-03-01	Common Stock	S	200	$724.41	Disposed	913015	Direct
2024-03-01	Common Stock	S	300	$725.53	Disposed	912715	Direct
2024-03-01	Common Stock	S	791	$726.72	Disposed	911924	Direct
2024-03-01	Common Stock	S	1275	$727.39	Disposed	910649	Direct
2024-03-01	Common Stock	S	2064	$728.54	Disposed	908585	Direct
2024-03-01	Common Stock	S	972	$729.21	Disposed	907613	Direct
2024-03-01	Common Stock	S	120	$731.82	Disposed	907493	Direct
2024-03-01	Common Stock	S	100	$732.01	Disposed	907393	Direct
2024-03-01	Common Stock	S	200	$733.37	Disposed	907232	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	133040	Indirect
Common Stock	12825	Indirect

Footnotes

F1: 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 $718.44 to $718.60. 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.

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 $719.20 to $719.94. 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: 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 $720.01 to $720.46. 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.

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 $721.17 to $721.81. 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 $724.40 to $724.42. 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.

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 $725.51 to $725.57. 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.

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 $726.32 to $726.95. 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.

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 $727.07 to $727.97. 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 $728.00 to $728.93. 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 $729.04 to $729.94. 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 $731.08 to $731.97. 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: Ending balance includes 39 shares acquired on February 15, 2024 through the Company's qualified ESPP program.