X0306 4 2019-09-16 0 0001775625 SmileDirectClub, Inc. SDC 0001759120 CD&R Investment Associates X, Ltd. C/O MAPLES CORPORATE SERVICES LIMITED, UGLAND HOUSE, SOUTH CHURCH STREET GEORGETOWN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 0001788172 CD&R SDC HOLDINGS, L.P. C/O MAPLES CORPORATE SERVICES LIMITED, UGLAND HOUSE, SOUTH CHURCH STREET GEORGETOWN E9 KY1-1104 CAYMAN ISLANDS 0 0 1 0 Class A common stock, $0.0001 par value 2019-09-16 4 S 0 2275857 21.85 D 26903123 I See Footnote Represents shares of Class A common stock of the Registrant (the "Common Stock"), which shares were previously directly held by CD&R SDC Holdings, L.P. ("CD&R SDC") and which shares were purchased by the Registrant with a portion of the net proceeds of the Registrant's initial public offering. The shares of Common Stock held by the Registrant were purchased at the public offering price of $23.00 per share, less the underwriting discount of $1.15 per share. CD&R Investment Associates X, Ltd. ("CD&R SDC GP") is the general partner of CD&R SDC, the direct holder of the Common Stock. CD&R SDC GP, as the general partner of CD&R SDC, may be deemed to beneficially own the shares of Common Stock held by CD&R SDC. Investment and voting decisions with respect to the shares of Common Stock held by CD&R SDC or CD&R SDC GP are made by an investment committee comprised of more than ten individuals (the "CD&R SDC Investment Committee"). All members of the CD&R SDC Investment Committee disclaim beneficial ownership of the shares of Common Stock held by CD&R SDC. CD&R SDC GP expressly disclaims beneficial ownership of the shares held by CD&R SDC except to the extent of any pecuniary interest therein. Theresa A. Gore, a Vice President, Treasurer and Assistant Secretary of CD&R Investment Associates X, Ltd. 2019-09-17 Theresa A. Gore, a Vice President, Treasurer and Assistant Secretary of the General Partner of CD&R SDC Holdings, L.P. 2019-09-17