Harvard University's endowment fund management reduced its holdings in BlackRock's iShares Bitcoin Trust ETF by approximately 21% in Q4 2025, while establishing a new position in BlackRock's iShares Ethereum Trust ETF worth about $86.8 million. According to its 13F filing with the U.S. Securities and Exchange Commission, as of December 31, 2025, Harvard still held approximately $266 million in Bitcoin ETFs, marking its largest publicly disclosed position. The new Ethereum ETF position comprises about 3.87 million shares.