1. Allegro MicroSystems will present at Morgan Stanley's Technology, Media & Telecom Conference on March 4, 2025; 2. Derek D’Antilio, EVP and CFO, will participate in a fireside chat; 3. The webcast of the fireside chat will be available on the company's website.

1. Allegro MicroSystems announced its participation in the Nasdaq Investor Conference in London on June 13-14, in partnership with Jefferies. 2. Vineet Nargolwala, President and CEO, and Derek D’Antilio, CFO, will participate in a fireside chat on June 14. 3. A live and archived webcast of the event will be available on Allegro's Investor Relations page.