Bitcoin whales awaken after 15 years of hibernation! - Whales from the Satoshi era (2010-2011) moved 6,500 Bitcoins (worth $325 million) to new wallets for the first time in over a decade!

- Source: Old mined blocks (possibly mining rewards or early transactions).

Possibilities:

1. Preparing for sale as the price of Bitcoin approaches $96,000 (concerns about sell pressure).

2. Higher security (moved to updated wallets or more secure storage).

3. Activating inheritance or legal plans after many years.