Notes: May 31, 2023 -- Verastem Oncology, (Nasdaq: VSTM), a biopharmaceutical company committed to advancing new medicines for patients with cancer, today announced that it will effect a 1-for-12 reverse stock split of its issued and outstanding common stock. Verastem’s stockholders approved an amendment to Verastem’s Restated Certificate of Incorporation (as amended, the “Amended Charter”) to effect the reverse stock split at Verastem’s Annual Meeting of Stockholders held on May 15, 2023. The reverse stock split is intended to increase the per share trading price of the Verastem’s common stock to ensure Verastem will satisfy the price requirement for continued listing on the Nasdaq Global Market, and potentially attract a broader range of investors. Pursuant to the Amended Charter, the reverse stock split will become effective at 5:00 p.m. Eastern Time on May 31, 2023 (the “Effective Time”) and the Company expects that its common stock will open for trading on June 1, 2023 on the Nasdaq Capital Market on a split-adjusted basis under the Company’s existing trading symbol “VSTM”. As a result of the reverse stock split, the CUSIP number for the Company’s common stock will now be 92337C203.