X0306 4 2023-01-13 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 0001769348 Ortelius Capital Partners, LLC 450 PARK AVENUE, SUITE 2700 NEW YORK NY 10022 0 0 1 0 0001804483 Hudson Investors, Ltd. C/O ORTELIUS CAPITAL PARTNERS, LLC 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 Common Stock 2023-01-13 4 L 0 621 14.85 A 670805 I See footnotes Common Stock 2023-01-20 4 P 0 973 15.25 A 671778 I See footnotes Common Stock 2023-01-23 4 P 0 5000 15.48 A 676778 I See footnotes The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $14.70 to $14.85, inclusive. The reporting persons undertake to provide upon request to the issuer, the Securities and Exchange Commission or any security holder of the issuer full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (1). These shares include 408,148 shares held by Pangaea Ventures, L.P. ("Pangaea") and 262,657 shares held by Hudson Investors, Ltd. ("Hudson"). Ortelius Advisors, L.P. ("Ortelius Advisors") is the investment manager of Pangaea. Ortelius Capital Partners, LLC ("Ortelius Capital") is the investment manager of Hudson. Peter DeSorcy is the Managing Member of the general partner of Ortelius Advisors and is the Managing Member of Ortelius Capital, and Mr. DeSorcy has a controlling interest in both Ortelius Advisors and Ortelius Capital. Each of Ortelius Advisors, Ortelius Capital, and Mr. DeSorcy disclaim beneficial ownership of any of the shares of common stock owned by Pangaea and Hudson, except to the extent of their pecuniary interest therein. These shares include 408,148 shares held by Pangaea and 263,630 shares held by Hudson. The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $15.46 to $15.50, inclusive. The reporting persons undertake to provide upon request to the issuer, the Securities and Exchange Commission or any security holder of the issuer full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (5). These shares include 408,148 shares held by Pangaea and 268,630 shares held by Hudson. ORTELIUS ADVISORS, L.P. By: Ortelius Management, LLC, its general partner By: /s/ Peter DeSorcy, Managing Member 2023-01-24 PANGAEA VENTURES, L.P. By: Ortelius Advisors GP I, LLC, its general partner By: /s/ Peter DeSorcy, Managing Member 2023-01-24 ORTELIUS CAPITAL PARTNERS, LLC By: /s/ Peter DeSorcy, Managing Member 2023-01-24 HUDSON INVESTORS, LTD. By: /s/ Peter DeSorcy, Director 2023-01-24 /s/ Peter DeSorcy 2023-01-24