The assessment is based on a direct calculation using data from multiple high-authority primary sources. Several sources, including a major financial news outlet and a dedicated third-party tracker, consistently report MicroStrategy's Bitcoin holdings at 671,268 BTC. Concurrently, highly credible cryptocurrency exchanges and data providers like Coinbase and CoinMarketCap place the circulating supply of Bitcoin at approximately 19.96 million BTC. Calculating the percentage of the total supply held by MicroStrategy: (671,268 / 19,962,846) * 100 ≈ 3.36%. This result of 3.36% is clearly greater than the 3% threshold stated in the claim. The evidence is highly consistent across all authoritative sources, with no contradictions. Furthermore, a crypto-focused news outlet directly corroborates the claim, stating that the company's holdings account for more than 3% of the total supply. The consistency of the raw data and the resulting calculation provide a high degree of confidence in the statement's truthfulness.