The closing price for Amazon (AMZN) on December 31, 2021 was $166.74. It was down 1.1% for the day (down 1.1% from previous close). The latest price is $227.47.
The 4th halving event is expected to occur on February 26, 2024 once 840,000 blocks have been mined. The block reward will decrease from 6.25 to 3.13 coins per block.