Recent SEC 13F filings reveal a sharp divergence in how major institutional investors managed their exposure to BlackRock's iShares Bitcoin Trust (IBIT) during the second quarter of 2025. While Harvard Management Company (HMC) paused its previous selling, two prominent hedge funds made deep cuts to their positions.
Harvard Management Company, which oversees Harvard University's endowment, held its IBIT stake steady at 3,044,612 shares as of June 30, 2025, according to its latest 13F filing with the U.S. Securities and Exchange Commission. The position, estimated to be worth over $100 million based on IBIT's average quarterly trading price, matches the prior quarter's total. This marks a notable pause after HMC reduced its IBIT holdings by 21% in Q4 2024 and by 43% in Q1 2025.
The steady holding is significant because Harvard's endowment is one of the largest in the world, and its investment decisions are closely watched by institutional peers. The decision to stop reducing exposure could signal a cautious but stable approach to Bitcoin among conservative, long-term investors, even if it does not necessarily confirm a long-term commitment.
In contrast, Brevan Howard cut its IBIT holdings by approximately 70.4%, falling to 7.21 million shares from 24.3 million shares at the end of the first quarter. Graham Capital reduced its position by about 72%, trimming its stake to 259,000 shares from 926,000 shares.
The divergent moves reflect a broader recalibration among institutional players who initially embraced spot Bitcoin ETFs following their launch in January 2024. The reductions came amid heightened volatility in the cryptocurrency market, driven by macroeconomic factors such as interest rate expectations and regulatory developments. However, 13F filings only provide a quarterly snapshot, and hedge funds frequently rebalance portfolios for reasons unrelated to their overall outlook on the asset class.
While some funds reduced exposure, others maintained or increased their positions, indicating that institutional sentiment remains split. The broader trend of institutional adoption of spot Bitcoin ETFs remains intact, with BlackRock's IBIT continuing to rank among the largest such products in the market. For everyday investors, the mixed filings underscore that even sophisticated money managers are navigating the digital asset space with measured, and sometimes divergent, steps.
