X0508 4 2024-04-16 0 0000355948 RICHARDSON ELECTRONICS, LTD. RELL 0001588859 Benham James 40W267 KESLINGER ROAD PO BOX 393 LAFOX IL 60147 1 0 0 0 0 Common stock 2024-04-16 4 P 0 2500 10.0123 A 5000 D The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $9.9899 to $10.03 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ Robert J. Ben, attorney-in-fact for James Benham 2024-04-18