Tether Bought 8,888 Bitcoin in Q1 for $735M; Total Holdings Rise to 92.6K / Tether Raises Bitdeer Stake to 21%: SEC Filing / Tether Brings Its $140B USDT Stablecoin to Bitcoin and Lightning Networks / Crypto Company Tether Wants to Hire AI Filmmakers / Howard Lutnick's Other Top Client: Crypto Giant Tether / Federal Investigators Probe Cryptocurrency Firm Tether / Tether CEO Ardoino Says He Expects U.S. Will Catch Up in Crypto Regulation / Tether Nets $5B Profits This Year, Says Its US Debt Holdings Surpassed Germany's / Tether co-founder Brock Pierce teases possible return to Hong Kong, says China will open to cryptocurrencies