This is quite old data. As of now, MicroStrategy holds 528,185 BTC, worth nearly $60 billion.
By the way, if you want to update news quickly through AI, chatgpt is not the ideal choice because its data is not updated in real time.
https://mstracker.net/You can have more latest data with other websites.
https://saylortracker.com/https://intel.arkm.com/explorer/entity/microstrategyStrategy have intention to keep their Bitcoin addresses privately so all information are made from public announcements of Strategy on their Bitcoin purchases. The tracking page from Strategy is their own on-chain analysis job but it has somewhat inaccuracy.