Picture
The 17-year-old Ashcroft made four first team appearances for Reading, making his debut at the Den in a 1-0 defeat to Millwall in November 2021.
He was also a regular for Noel Hunt's Under-23s playing more than 20 times in PL2.
Ashcroft was part of Spurs' academy Premier League 2 title-winning side in 2023/24.
The 21-year-old made 110 appearances for the Spurs academy side making 89 starts. The defender scored two goals and kept 12 clean sheets.
A club spokesman said: "We extend our grateful thanks to all departing players and their families for their contributions to the club and wish them every success in the future."
Source