NATHAN FOUNTAIN plan to sell securities of ACUMEN PHARMACEUTICALS, INC. under Form 144

NATHAN FOUNTAIN filed Form 144 to notify SEC of plan to sell 6400 units of ACUMEN PHARMACEUTICALS, INC. securities around 2026-06-09, with aggregate market value of $14,272.64. The total outstanding units is 72227580.0. The amount planned to be sold represents 0.01% of total outstanding units;