Riso Kagaku updates treasury stock repurchase progress

Riso Kagaku Corporation announced an update on its treasury stock acquisition program, reporting the purchase of 210,000 shares of common stock in September 2025. These shares were acquired for a total of 256,891,900 yen through market purchases on the Tokyo Stock Exchange between September 1 and September 30, 2025.

This latest acquisition is part of a larger resolution approved on July 31, 2025. It authorized the repurchase of up to 580,000 shares, representing 0.90% of outstanding shares (excluding treasury stock), with a maximum expenditure of 500,000,000 yen. The period for this program extends from August 18, 2025, to October 24, 2025.

Cumulatively, as of September 30, 2025, Riso Kagaku has repurchased 350,000 shares, totaling 427,874,000 yen.