Acumen Pharmaceuticals, Inc. (ABOS) Form S-3 — Oct 26, 2026

Acumen Pharmaceuticals filed a new Form S-3 universal shelf registration on October 26, 2026, allowing it to offer up to $500 million of common stock, preferred stock, debt securities and warrants on a delayed or continuous basis. No offering was priced in this filing, but the shelf is very large relative to Acumen's size — with 72.3 million shares outstanding at a last sale price of $1.98 (roughly $143 million market cap), full utilization would imply extreme dilution.

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