Monolithic Power Systems, Inc.

MPWR·NASDAQ·$1662.98Share Price as of 11/2·$82BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/05/26 10-QQ1 ended 03/31/2605/04/26 10-KFY 202502/27/26 10-QQ3 ended 09/30/2511/05/25 10-QQ2 ended 06/30/2508/04/25

Disclosures

8-KCurrent report10/29/26 8-KCurrent report09/10/26 8-KCurrent report07/30/26 8-KCurrent report06/12/26 8-KCurrent report04/30/26

Prospectuses and Registrations

S-8Registration of securities for employees08/03/20

Proxies

DEF 14ADefinitive proxy04/30/26 DEFA14AAdditional proxy materials04/30/26 DEFR14ADefinitive proxy (revised)05/02/25 DEF 14ADefinitive proxy04/30/25 DEFA14AAdditional proxy materials04/30/25

Ownership

Form 3Initial insider ownership10/29/26 Form 4Insider transaction09/30/26 144Proposed sale of securities09/28/26 Form 4Insider transaction09/02/26 Form 4Insider transaction08/26/26

Other

SDConflict Minerals disclosure05/29/26 ARSAnnual report to shareholders04/30/26 SDConflict Minerals disclosure05/28/25 ARSAnnual report to shareholders04/30/25 SDConflict Minerals disclosure05/30/24