### Key Statistics:
1. Institutional Share : Institutional investors now hold 31% of all known Bitcoin holdings, a sharp increase from 14% in 2023 .
2. Total Institutional BTC : Companies and ETFs collectively hold approximately 2.3 million BTC (11% of the total 21 million supply) .
3. ETF Holdings : Spot Bitcoin ETFs hold ~965,000 BTC (nearly 5% of the total supply), with iShares leading at 352,843 BTC .
4. Corporate Leaders : MicroStrategy remains the largest corporate holder, with over 440,000 BTC .
### Major Institutional Holders (as of May 2025):
| Entity | Type | Bitcoin Holdings | Market Value (USD) |
|-----------------------|----------------|-------------------|--------------------|
| MicroStrategy | Public Company | 440,000+ BTC | $$903.5B+ |
| iShares Bitcoin ETF | ETF | 352,843 BTC | N/A |
| Galaxy Digital | Public Company | 6,015 BTC | $$6.0B |
| Marathon Digital | Public Company | Not specified | $$2.4B |
| CleanSpark | Public Company | Not specified | $$2.4B |
### Trends:
- Institutions added 200,000 BTC in Q1 2025 alone, accelerating price growth .
- Bitcoin ETFs now account for ~5% of total supply and continue to attract institutional capital .
For detailed quarterly updates, refer to SEC 13F filings tracked in recent reports .
