AirTag Competitor Tile Getting Acquired by Location Sharing App Life360

AFAIK Tile did not sell the data.

AFAIK Life360 sells all the data.

FWIW, Tile has been around long, long before AirTag

Is Life360 a publicly traded company?

Yes, it trades on the Australian exchange ASX: https://www2.asx.com.au/markets/company/360