Sanofi bought ATTO
August 6, 2026 · Form 4 insider transaction
Sanofi bought 300,000 shares of ATTO at $17.00 per share, a transaction worth $5.10M. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
300,000
Price
$17.00
Total value
$5.10M
InsiderSanofi
Role10% owner
CompanyATTO
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateAugust 6, 2026
Filing dateAugust 7, 2026
Shares owned after1,082,855
OwnershipIndirect
10b5-1 planNo
AmendedNo
Footnotes
Represents a purchase in the Issuer's IPO.; Sanofi beneficially owns the securities reported herein through various wholly-owned subsidiaries.