X0306 4 2013-06-12 0 0001526119 Verastem, Inc. VSTM 0001219015 CLARKE JOHN K C/O VERASTEM, INC., 215 FIRST STREET, SUITE 440 CAMBRIDGE MA 02142 1 0 0 0 Common Stock 2013-06-12 4 P 0 23171 9.5993 A 2329121 I By CHP III, L.P. Represents a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $9.36 to $9.75, inclusive. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all the reported shares for purposes of Section 16 or for any other purpose. /s/John B. Green, attorney-in-fact 2013-06-13