Citadel founder and CEO Ken Griffin filed documents with the U.S. Securities and Exchange Commission (SEC), disclosing his personal holdings of a 4.5% stake in digital asset treasury firm DeFi Development Corp. (DFDV), approximately 1.3 million common shares, valued at approximately $600 million. DFDV primarily manages Solana (SOL) asset reserves and is currently the second-largest Solana treasury company. Additionally, Citadel Advisors LLC and its affiliated entities hold approximately 800,000 shares of DFDV, representing a 2.7% stake. This disclosure makes Citadel one of DFDV's major institutional investors and marks a further expansion of the traditional financial giant into the digital asset space. The documents show that DFDV purchased a cumulative $117 million worth of SOL over an eight-day period earlier this month and currently holds approximately 2.19 million SOL, valued at approximately $400 million. Analysts believe Griffin's move reflects that institutional investors are viewing crypto treasuries as a new asset class, although their valuations remain significantly impacted by crypto market volatility. (FINANCE FEEDS)