Wall Street vs Abu Dhabi: Who Held Bitcoin ETFs?

Photo: Coindoo
Key Takeaways Millennium and Mubadala both added IBIT in Q4. Their paths parted only in early 2026. Millennium’s stake fell about 72% from December. Mubadala’s share count was flat in Q2. Galaxy set out the argument in its November 6 research brief , which draws on an October report comparing 13F filings at September 30, 2025, and June 30, 2026. Galaxy’s endpoints have a logic. September 30, 2025, was the last quarter-end before Bitcoin’s October peak, and the cycle low came on June 30, 2026. Across that span, Galaxy says, ETF holdings reported by 13F filers fell 14%.
Source: Coindoo







