 DALLAS--BUSINESS WIRE--- SNDA--In consideration of the upcoming NYSE holiday, Sonida Senior Living NYSE: SNDA will issue its fourth quarter and full year 2021 earnings release pre-market open on April 18, 2022 and will hold its conference call the same day at 1:30 p.m. Eastern Time. The Company will file its 2021 Form 10-K on Friday, April 15, 2022. The conference call-in number is 877-407-0989 no passcode required. A link to a simultaneous webcast of the teleconference will be available here thr 