UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (date of earliest event reported):

~~April~~June 3011, 2026

MONOLITHIC POWER SYSTEMS, INC.

(Exact name of registrant as specified in its charter)

Delaware

000-51026

77-0466789

(State or other jurisdiction of

(Commission

(I.R.S. Employer

incorporation or organization)

File Number)

Identification Number)

1555 Palm Beach Lakes Blvd., ~~West Palm Beach, Florida 33401 (Address of principal executive offices)(Zip Code)(1)~~

~~(561)~~West ~~839-3999~~Palm ~~(Registrant’s telephone number~~Beach, ~~including~~Florida ~~area code)~~33401

(Address of principal executive offices)(Zip Code)(1)

(561) 839-3999

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.001 per share	MPWR	The NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as deﬁned in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

(1) We have operations in multiple locations in the USU.S., Europe and Asia and have not identified a single location as the Company’s headquarters. We are including this address to comply with the Securities and Exchange Commission’s requirements.

Item 25.0207 ~~Results~~Submission of ~~Operations~~Matters ~~and~~to ~~Financial~~a ~~Condition~~Vote of Security Holders.

On ~~April~~ 30June 11, 2026, Monolithic Power Systems, Inc. ~~issued~~ a(the ~~press~~“Company”) ~~release~~held ~~regarding~~ its ~~financial results for the quarter ended March 31,~~ 2026. ~~The~~annual ~~press~~meeting ~~release~~of isstockholders ~~attached~~(the ~~hereto~~“Annual ~~as Exhibit 99~~Meeting”).1 ~~and~~At isthe ~~incorporated~~Annual byMeeting, ~~reference~~the ~~herein.~~Company’s stockholders:

~~The information under Item 2~~1.02Elected oftwo ~~this~~Class ~~Current~~I ~~Report~~directors onto ~~Form~~serve ~~8-K and Exhibit 99.1 attached hereto are being furnished and shall not be deemed “filed”~~ for ~~purposes~~three-year ofterms ~~Section 18~~until of the ~~Securities~~Company’s ~~Exchange~~annual ~~Act~~meeting of ~~1934,~~stockholders asin ~~amended (the “1934 Act”)~~2029, ~~nor~~or ~~shall~~until ~~they~~their berespective ~~deemed~~successors ~~incorporated~~are byduly ~~reference~~elected ~~in any filing with the Securities~~ and ~~Exchange Commission under the 1934 Act or the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing~~qualified.

2.Ratified the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2026.

3.Approved, on an advisory basis, the 2025 compensation of the Company’s named executive officers.

The number of votes cast for, against or withheld, as well as the number of abstentions and broker non-votes as to each such matter, is set forth below.

1.Election of two Class I directors:


Nominee	For	Withheld	Broker Non-Votes
Victor K. Lee	39,298,042	4,440,848	1,699,761
Jeff Zhou	41,135,949	2,602,941	1,699,761

2.Ratification of the appointment of the Company's independent registered public accounting firm for the year ending December 31, 2026:


For	Against	Abstain	Broker Non-Votes
45,354,955	72,479	11,217	-

3.Approval, on an advisory basis, of the 2025 compensation of the Company's named executive officers:


For	Against	Abstain	Broker Non-Votes
42,164,328	1,411,084	163,478	1,699,761

Item 8.01 Other Events.

On June 12, 2026, the Company issued a press release announcing the second quarter cash dividend of $2.00 per share to all stockholders of record as of the close of business on June 30, 2026. The dividend will be paid to stockholders on July 15, 2026. A copy of the press release is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit	~~Description~~	Description
99.1	~~Press release issued on April 30, 2026 for the quarter ended March 31, 2026.~~	Press release issued on June 12, 2026.
104	~~Cover Page Interactive Data File (embedded within the Inline XBRL Document).~~	Cover Page Interactive Data File (embedded within the Inline XBRL Document).

~~SIGNATURES~~SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: April 30, 2026	By:	/s/ Robert Dean
Date: June 12, 2026			By:	/s/ Saria Tseng
		Robert Dean
				Saria Tseng
		Interim Chief Financial Officer
				Executive Vice President, General Counsel

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