BlackRock, one of the largest Bitcoin holders, reportedly joined Telegram's $1.5 billion bond issuance on May 28, along with Mubadala. The 5-year bond offers a 9% yield, aiming to repay debts from the 2021 issuance. Other investors like Citadel are attracted, allowing potential IPO investment at a 20% discount, signaling a capital restructuring effort.