Madormo Richard plan to sell securities of ALLEGRO MICROSYSTEMS, INC. under Form 144

Madormo Richard filed Form 144 to notify SEC of plan to sell 5000 units of ALLEGRO MICROSYSTEMS, INC. securities around 2026-06-03, with aggregate market value of $263,600.50. The total outstanding units is 186222406.0. The amount planned to be sold represents 0.00% of total outstanding units;