I’ve noticed that it takes new orgs up to a year to show up in that search, so it might also be that they’ve applied for or gotten the status recently (given that FTX stuff was so new). Delaware corporation search suggests they are registered as a nonprofit corporation in Delaware—https://icis.corp.delaware.gov/ecorp/entitysearch/NameSearch.aspx, (have to search them by name).
Note I don’t see any results for FTX Foundation or FTX Philanthropy at https://apps.irs.gov/app/eos/determinationLettersSearch So it’s possible it’s not a 501(c)(3) (although it could still be a non-profit corporation).
I’ve noticed that it takes new orgs up to a year to show up in that search, so it might also be that they’ve applied for or gotten the status recently (given that FTX stuff was so new). Delaware corporation search suggests they are registered as a nonprofit corporation in Delaware—https://icis.corp.delaware.gov/ecorp/entitysearch/NameSearch.aspx, (have to search them by name).