X0306 4 2019-11-07 1 0001709768 Sentinel Energy Services Inc. STNL 0001326389 Polar Asset Management Partners Inc. 401 BAY STREET SUITE 1900, P.O. BOX 19 TORONTO A6 M5H 2Y4 ONTARIO, CANADA 0 0 1 0 Class A Common Stock 2019-11-07 4 J 0 4300000 10.29 D 0 I See footnote Sentinel Energy Services Inc. (the "Company") announced in a press release dated November 6, 2019 and filed with the SEC on Form 8-K dated November 6, 2019 (the "Press Release") that it would be redeeming all of its outstanding shares of Class A Common Stock (the "Shares") effective as of the close of business on November 7, 2019, because the Company did not consummate an initial business combination within the time period required by its certificate of incorporation. As described in the Press Release, the Shares, including those held by the Polar Vehicles (as defined below), were redeemed at an approximate price of $10.29 per Share. Polar Asset Management Partners Inc., a company incorporated under the laws of Ontario, Canada, (the "Reporting Person") serves as investment advisor to Polar Multi-Strategy Master Fund, a Cayman Islands exempted company ("PMSMF") and certain managed accounts (together with PMSMF, the "Polar Vehicles") and has sole voting and investment discretion with respect to the securities reported herein which are held by the Polar Vehicles. The Reporting Person disclaims beneficial ownership of the securities reported herein, and this report shall not be deemed an admission that Reporting Person is the beneficial owner of the securities reported herein for the purpose of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose, except to the extent of Reporting Person's pecuniary interest therein. /s/ POLAR ASSET MANAGEMENT PARTNERS INC., by Greg Lemaich, General Counsel 2019-11-12