January 31, 2026 · Form 4 insider transaction
Roberts M Scot bought 5,567 shares of ALT at $3.07 per share, a transaction worth $17.1K. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 3 days after the transaction.
These shares were purchased due to participation by the reporting individual in the Issuer's 2019 Employee Stock Purchase Plan ("ESPP"). It pertains to the ESPP purchase period from August 1, 2025 through January 31, 2026.; In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on August 1, 2025.