A sliding device for a vehicle seat includes a pair of tracks, each having a lower rail and an upper rail, and a locking arrangement having a pair of locking assemblies, each including locking pins for locking a respective one of the upper rails to a respective one of the lower rails. The locking arrangement includes a releasing assembly for driving the locking pins of each of the locking assemblies to an unlocking configuration. The releasing assembly includes a releasing member and a pair of connecting members. The connecting members are each in a force transmission connection with the releasing member and with the locking pins of a respective one of the locking assemblies. The connecting members are entirely received within the tracks, and the releasing assembly is configured to convert rotational movement of the releasing member into linear movement of the locking pins of each of the locking assemblies.