X0508 4 2023-12-21 0 0001043000 SONIDA SENIOR LIVING, INC. SNDA 0001804502 Ortelius Advisors, L.P. 450 PARK AVENUE, SUITE 2700 NEW YORK NY 10022 0 0 1 0 0001645708 Pangaea Ventures, L.P. C/O ORTELIUS ADVISORS, L.P. 450 PARK AVENUE, SUITE 2700 NEW YORK NY 10022 0 0 1 0 0001804470 DeSorcy Peter 450 PARK AVENUE, SUITE 2700 NEW YORK NY 10022 0 0 1 0 0 Common Stock 2023-12-21 4 P 0 268630 10.00 A 679580 I See footnotes Common Stock 2023-12-21 4 S 0 268630 10.00 D 679580 I See footnotes Pangaea Ventures, L.P. ("Pangaea") acquired 268,630 shares from Hudson Investors, Ltd. ("Hudson"), which was previously included as a reporting person with the reporting persons named herein. Accordingly, the aggregate amount of shares beneficially owned by the reporting persons is unchanged. All of these shares are held by Pangaea. Hudson disposed of 268,630 shares to Pangaea. Hudson was previously included as a reporting person with the reporting persons named herein. Accordingly, the aggregate amount of shares beneficially owned by the reporting persons is unchanged. None of these shares are held by Hudson. Accordingly, Hudson and Ortelius Capital Partners, LLC, the investment manager of Hudson, have been removed as reporting persons. Ortelius Advisors, L.P. ("Ortelius Advisors") is the investment manager of Pangaea. Peter DeSorcy is the Managing Member of the general partner of Ortelius Advisors and has a controlling interest in Ortelius Advisors. Each of Ortelius Advisors and Mr. DeSorcy disclaims beneficial ownership of any of the shares of common stock owned by Pangaea, except to the extent of their pecuniary interest therein. ORTELIUS ADVISORS, L.P. By: Ortelius Management, LLC, its general partner By: /s/ Peter DeSorcy, Managing Member 2023-12-22 PANGAEA VENTURES, L.P. By: Ortelius Advisors GP I, LLC, its general partner By: /s/ Peter DeSorcy, Managing Member 2023-12-22 /s/ Peter DeSorcy 2023-12-22