The Toronto Stock Exchange reports that Aptose Biosciences Inc. has rolled back its shares on a one-new-for-15-old basis, effective at the open on June 6, 2023. According to the TSX, the shares will continue trading under the symbol APS. The new Cusip number is 03835T 30 9.

The TSX notes that no fractional common shares will be issued. Fractional share entitlements will be rounded down to the next whole share.