X0609 4 2026-10-07 0 0001375365 Super Micro Computer, Inc. SMCI 0001392942 Liang Charles false 980 ROCK AVENUE SAN JOSE CA 95131 1 1 1 0 President and CEO 1 Common Stock 2026-10-07 4 S 0 100000 45.02 D 337506 I By Spouse Common Stock 25332520 D Common Stock 40426120 D The broker-assisted sales transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person's spouse on May 26, 2026 during the Company's open window period (the "Trading Plan"). The price reported here is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.00 to $45.06, inclusive. The Reporting Person's spouse undertakes to provide to Super Micro Computer, Inc., any security holder of Super Micro Computer, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. Represents 25,332,520 shares held in a brokerage account jointly owned by the Reporting Person and the Reporting Person's spouse, each of whom is a Section 16 reporting person of the Issuer. These shares are reported as directly beneficially owned by each individual in accordance with the instructions to Form 4. The shares were previously reported as indirectly beneficially owned. This change reflects a reclassification of the form of beneficial ownership for reporting purposes only and does not represent a change in the number of shares beneficially owned by either individual. /s/ David E Weigand, Attorney-In-Fact 2026-10-09