Patience really does pay off in crypto, at least for one very lucky early adopter. A Bitcoin (BTC) whale who hasn't touched their stash in over twelve years just started selling, and the numbers are eye-watering.

The wallet, nicknamed "5K BTC OG," originally accumulated 5,000 BTC back in 2012 at the bargain price of $332 per coin. Now they've sold half of it—2,500 BTC—for roughly $265 million, exiting at an average price of $106,164. That's a 31,250% return for anyone keeping score at home.

According to data from Lookonchain, the selling has been methodical. The OG has been moving 250-500 BTC per transaction, spreading the sales across at least 10 separate transfers to Binance over the past five months. Another 500 BTC, valued at $47.77 million, was recently moved to the exchange as well.

Here's what has traders nervous: the wallet still holds 2,500 BTC, worth around $237.5 million. With Bitcoin hovering just below $100,000 in what's already a dense resistance zone, another large dump from legacy holders could add serious downward pressure.

All told, the OG's total profits now exceed $500 million, making this one of the most successful HODL-to-exit stories in Bitcoin history. While long-term believers are celebrating the "diamond hands," many traders are getting anxious. These coins have been frozen since the early post-Satoshi days, and now they're live and liquid—and half of them are already gone.