X0306 4 2021-06-28 0 0001758488 ONESPAWORLD HOLDINGS Ltd OSW 0001018946 STEINER LEISURE Ltd OFFICE NUMBER 2, PINEAPPLE BUSINESS PARK AIRPORT INDUSTRIAL PARK, P.O BOX N-624 NASSAU C5 BAHAMAS 1 0 1 0 0001770500 Nemo Parent, Inc. C/O LENNOX PATON CORPORATE SERVICES LTD 3 BAYSIDE EXECUTIVE PARK WEST BAY STREET, NASSAU D0 BERMUDA 1 0 1 0 0001770497 Nemo Investor Aggregator, Ltd C/O MOURANT OZANNES CORPORATE SERVICES 94 SOLARIS AVENUE, PO BOX 1348 CAMANA BAY, GRAND CAYMAN E9 CAYMAN ISLANDS 1 0 1 0 Common Shares 2021-06-28 4 S 0 9469211 9.0963 D 19097669 I See Footnotes An aggregate of 9,469,211 common shares of the Issuer (the "Common Shares") were sold by Steiner Leisure Limited ("Steiner Leisure" ) in connection with a registered, underwritten public offering of (the "Secondary Offering") common shares of the Issuer by certain selling shareholders, which closed on June 28, 2021. For more information, see the Issuer's final prospectus filed pursuant to Rule 424(b)(5) on June 25, 2021. The Common Shares sold by the reporting person consisted of 5,705,625 voting common shares of the Issuer and 3,763,586 non-voting common shares of the Issuer. Upon their sale to the underwriters in the Secondary Offering, the non-voting common shares of the Issuer sold by the reporting person automatically converted into voting common shares of the Issuer. The Common Shares sold by the reporting person included shares sold pursuant to the exercise in full of the underwriters' option to purchase additional common shares from the reporting person. Of the 19,097,669 common shares of the Issuer beneficially owned by the reporting person following the Secondary Offering, 13,421,914 shares are non-voting common shares of the Issuer and 5,675,755 shares are voting common shares of the Issuer. Steiner Leisure is controlled by Nemo Parent, Inc., an international business company incorporated under the laws of the Commonwealth of the Bahamas. Nemo Parent, Inc. is 100% owned by Nemo Investor Aggregator, Limited, a Cayman Islands exempted company. Nemo Investor Aggregator, Limited is governed by a board of directors consisting of seven directors. Each director has one vote, and the approval of a majority of the directors is required to approve an action of Nemo Investor Aggregator, Limited. (Continued from footnote 2) Under the so-called "rule of three," if voting and dispositive decisions regarding an entity's securities are made by three or more individuals, and a voting or dispositive decision requires the approval of a majority of those individuals, then none of the individuals is deemed a beneficial owner of the entity's securities. Based upon the foregoing analysis, no director of Nemo Investor Aggregator, Limited exercises voting or dispositive control over any of the securities held by Steiner Leisure, even those in which he or she directly holds a pecuniary interest. Accordingly, none of them will be deemed to have or share beneficial ownership of such shares. STEINER LEISURE LIMITED, /s/ Marc Magliacano, Vice President and Assistant Secretary 2021-06-30 NEMO INVESTOR AGGREGATOR, LIMITED, /s/ Marc Magliacano, President and Chairman 2021-06-30 NEMO PARENT, INC., /s/ Marc Magliacano, Vice President 2021-06-30