Trade Summary

Yesterday, Frazier Life Sciences XI, L.P., serving as 10% owner Owner at Attovia Therapeutics, Inc. (ATTO), purchased 588,235 shares at $17.00 per share, for a total transaction value of $9,999,995.00. Following this transaction, Frazier Life Sciences XI, L.P. now holds 6,154,213 shares of ATTO.

This purchase represents a 10.57% increase in Frazier Life Sciences XI, L.P.'s stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Thursday, August 6, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, August 6, 2026 at 5:35 PM ET, meaning the disclosure happened on the same day as the trade.