ProMIS Neurosciences announces 1-for-20 reverse stock split

ProMIS Neurosciences (PMN) board of directors has determined to effect a one-for-twenty-five reverse stock split of the Company’s common shares, no par value per share. The reverse stock split will take effect at 12:01 a.m. Eastern Time on November 28, 2025, and the Common Shares will begin trading on a split-adjusted basis on The Nasdaq Capital Market as of the opening of trading on November 28, 2025. The CUSIP number of 74346M505 will be assigned to the Common Shares when the reverse stock split becomes effective. When the reverse stock split becomes effective, every twenty-five issued Common Shares will be combined into one issued Common Share, without any change to the par value per share. This will reduce the number of outstanding Common Shares from approximately 53,811,110 million shares to approximately 2,152,444 million shares.