🟢 Allegro Microsystems is trading 4.21% up in after-hours trading with no clear company-specific announcement

Allegro Microsystems is trading 4.21% up at $37.35, with no clear company-specific announcement identified for September 9, 2026.

• Its latest identified release, dated July 30, reported first-quarter fiscal 2027 sales of $259 million, up 27% year over year; that information predates the move.
• Broader markets were weaker, with the Nasdaq down 2.04%, so market direction does not clearly explain the after-hours gain.