AlphaTauri has announced that Tost will step down as team principal at the end of the 2023 season, with Mekies due to return to the Italian squad in his place - and will join the team at an undisclosed date.
In addition, former FIA executive director Peter Bayer will join AlphaTauri later this season as its CEO, with his remit to oversee the strategic direction of the team across both its facilities in Italy and the UK.
Tost had been in charge of the team since 2006, having been appointed by Red Bull GmbH once it had completed its takeover of the Minardi team at the end of 2005.
More to follow
Source: Autosport