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MONOLITHIC POWER SYSTEMS, INC.

LISTEDNASDAQ

SYMBOLMPWR

SIC3674

STATE OF INC.DE

FISCAL YEAR ENDSDecember 31

CIK1280452

SEMICONDUCTORS & RELATED DEVICES · LARGE ACCELERATED FILER · 10 FISCAL YEARS OF SEC XBRL DATA, 2016–2025

Fiscal years labelled by the calendar year in which they end. Bars in $ billions; per-share figures as reported.

CAPITALIZATION 12/31/25

($ millions)	Amount	%
Total debt	–	–
Stockholders' equity	3,531	100.0
Total capitalization	3,531	100.0

49,143,000 shares outstanding at 29 July 2026 (cover page of the 10-Q filed 5 August 2026).

LONG-TERM DEBT 12/31/25

($ millions)	Amount
Not tagged in XBRL

CAPITAL STOCK 12/31/25

Common shares authorized	150,000,000
Common shares issued	48,709,000
Par or stated value per share ($)	0.001
Outstanding at 7/29/26	49,143,000

DIVIDENDS DECLARED/PAID

Fiscal year	Per share $	Payout %
2025	6.24	48.5
2024	5.00	15.3
2023	4.00	45.7
2022	3.00	33.1
2021	2.40	47.5

HISTORY AND BUSINESS

HISTORY: Incorporated in Delaware.

BUSINESS: Classified by the SEC under Standard Industrial Classification 3674, Semiconductors & Related Devices. Large accelerated filer. Principal executive office: 1555 Palm Beach Lakes Blvd., West Palm Beach, FL 33401. Fiscal year ends December 31. For a description of the business, see Item 1 of the latest 10-K.

CONSOLIDATED INCOME ACCOUNT, YEARS ENDED

($ millions)	12/31/25	12/31/24	12/31/23
Revenues	2,790	2,207	1,821
Cost of revenues	1,251	986	800
Gross profit	1,540	1,221	1,021
Research and development	382	325	264
Selling, general and administrative	429	357	276
Depreciation and amortization	53	36	40
Operating income	729	539	482
Income before income taxes	766	573	506
Income taxes	145	(1,019)	78
Net income	621	1,592	427
Earned per share, diluted ($)	12.86	32.60	8.76
Dividends per share ($)	6.24	5.00	4.00

CONSOLIDATED BALANCE SHEET

($ millions)	12/31/25	12/31/24
Cash and equivalents	1,099	692
Receivables, net	256	173
Inventories	565	420
Total current assets	2,184	1,565
Property, plant and equipment, net	628	495
Goodwill	26	26
Total assets	4,194	3,516
Total current liabilities	369	295
Total liabilities	663	565
Stockholders' equity	3,531	2,951
Total liabilities and equity	4,194	3,516

TEN-YEAR STATISTICS: FISCAL YEARS ($ millions except per share)

Fiscal year ended	Revenues	Oper. income	Net income	Net margin %	EPS diluted $	Div. per share $	Oper. cash flow	Capital expend.	Free cash flow	Total assets	Total liabilities	Total debt	Stockholders' equity	ROE %	Debt / equity
12/31/25	2,790	729	621	22.3	12.86	6.24	838	172	666	4,194	663	–	3,531	17.6	–
12/31/24	2,207	539	1,592	72.1	32.60	5.00	788	146	642	3,516	565	–	2,951	53.9	–
12/31/23	1,821	482	427	23.5	8.76	4.00	638	58	581	2,434	384	–	2,050	20.8	–
12/31/22	1,794	527	438	24.4	9.05	3.00	247	59	188	2,059	390	–	1,669	26.2	–
12/31/21	1,208	262	242	20.0	5.05	2.40	320	94	226	1,586	342	–	1,244	19.5	–
12/31/20	844	159	164	19.5	3.50	2.00	268	56	212	1,208	242	–	967	17.0	–
12/31/19	628	103	109	17.3	2.38	1.60	216	96	120	956	183	–	773	14.1	–
12/31/18	582	113	105	18.1	2.36	1.20	141	23	119	793	153	–	640	16.4	–
12/31/17	471	77	65	13.8	1.50	0.80	134	66	68	653	131	–	522	12.5	–
12/31/16	389	54	53	13.6	1.26	0.80	108	37	71	511	80	–	431	12.2	–

Net margin = net income ÷ revenues; ROE = net income ÷ year-end stockholders’ equity; total debt = long-term debt including current maturities plus short-term borrowings/commercial paper, as tagged in XBRL; free cash flow = operating cash flow − purchases of property, plant and equipment; d = derived as total assets − total equity where the filing does not tag total liabilities; – = not reported in XBRL for that year.

REGISTRANT:

MONOLITHIC POWER SYSTEMS, INC.
CIK 1280452 · EIN 77-0466789

PRINCIPAL OFFICE:

1555 Palm Beach Lakes Blvd., West Palm Beach, FL 33401
Tel.: 561-839-3999

INCORPORATED:

Delaware

INDUSTRY (SEC SIC CODE):

3674 · Semiconductors & Related Devices

FILER STATUS:

Large accelerated filer

LATEST ANNUAL REPORT:

10-K for period ended 12/31/25, filed 27 February 2026

FORMER NAMES:

MONOLITHIC POWER SYSTEMS INC

RECENT FILINGS (ANNUAL REPORT REFERENCES BELOW):

9/10/26	8-K	period 9/10/26
8/5/26	10-Q	period 6/30/26
7/30/26	8-K	period 7/30/26
6/12/26	8-K	period 6/11/26
5/4/26	10-Q	period 3/31/26
4/30/26	8-K	period 4/30/26
4/30/26	DEF 14A	period 6/11/26
2/27/26	10-K	period 12/31/25

Sources: SEC XBRL company facts (all financial figures) · SEC submissions (registrant, address, SIC, filings) · annual reports: 10-K FY2025 (filed 2/27/26) · 10-K FY2024 (filed 3/3/25) · 10-K FY2023 (filed 2/29/24) · 10-K FY2022 (filed 2/24/23) · 10-K FY2021 (filed 2/25/22) · 10-K FY2020 (filed 3/1/21) · 10-K FY2019 (filed 2/28/20) · 10-K FY2018 (filed 3/1/19). Values are the latest figures filed for each fiscal year (restated where a later 10-K restated them). Ratios and free cash flow are Pathos calculations from those figures. Retrieved 31 October 2026.