https://apnews.com/26067b6dc575c02d1112c6823a3982c8 > Billionaire Elon Musk has strengthened the equity stake of his offer to buy Twitter with commitments of more than $7 billion from a range of investors, including Silicon Valley heavy hitters like Oracle co-founder Larry Ellison. > Other investors include Sequoia Capital Fund, which pledged $800 million, and VyCapital, which pledged $700 million, according to a Thursday filing with the U.S. Securities and Exchange Commission. But Ellison, who is also a and Tesla board member, is making the biggest contribution, pegged at $1 billion.