Sanofi bought $5.1M of ATTO stock

Sanofi, 10% owner of Attovia Therapeutics, Inc. (ATTO), bought 300,000 shares of ATTO stock worth $5.1M, per an SEC Form 4 filed Aug 7, 2026.

It was an open-market purchase.

The trade happened on Aug 6, 2026, 1 day before it was made public.

ATTO has moved -25.8% since the trade date, from $20.38 to $15.13 (Nov 13, 2026 close).