On the first day of each month, Ripple unlocks 1 billion XRP tokens from an escrow system using the XRP Ledger.
On January 1 (Wednesday), the company will unlock over 2 billion dollars worth
of tokens in three transactions of 200 million, 300 million, and 500
million XRP.

Interestingly, the unlock in January 2025 accounts for
1.74% of the total supply of 57.25 billion currently circulating. Furthermore, accumulated
for 2.63% of the remaining 38 billion XRP tokens locked in escrow accounts
under the control of Ripple.

Three escrow accounts will reach completion in the final minutes of December 31, held by two known wallet addresses owned by Ripple. Specifically, 'Ripple (24)' will unlock 200 and 300 million XRP, previously locked in December 2020 and January 2021.

$XRP

Secondly, 'Ripple (25)'
will unlock 500 million tokens, previously locked in January 2021.
These will be the final unlocks from 'Ripple (24) and (25)', but there are
many more escrow accounts in addresses controlled by Ripple.

Source: cryptorank