Two major blockchain trackers, Lookonchain and Whale Alert, have detected movement of 20,000 bitcoin, triggering the activation of previously dormant wallets containing 10,000 bitcoin each. These transactions date back to 2011, when the funds were initially deposited. The total potential profit from the activated wallets is estimated at over $2 billion.
Source: https://www.marketwatch.com/story/sleeping-beauty-bitcoin-wallets-wake-up-after-14-years-to-the-tune-of-2-billion-79f1f11f