MicroStrategy Surpasses 1% of Total BTC Supply Milestone Using Proceeds of Yet Another $600M Convertible Note Offering
"As of March 18, 2024, MicroStrategy, together with its subsidiaries, held an aggregate of approximately 214,246 bitcoins, which were acquired at an aggregate purchase price of approximately $7.53 billion and an average purchase price of approximately $35,160 per bitcoin, inclusive of fees and expenses."
https://www.nobsbitcoin.com/microstrategy-acquires-over-1-of-total-btc-supply-following/
And they haven't contributed a single penny to open source development