Ferguson returned to the club in January 2023 and took charge of 161 games, winning 73 and losing 55.
Posh finished 18th last season, having been in the play-offs in the two previous campaign.
In 2022-23, they looked set to reach the final after thumping Sheffield Wednesday 4-0 in the first leg of their semi-final.
However, the Owls pulled off the greatest comeback in play-off history to win through on a penalty shootout after winning the second leg 5-1.
They recovered from that setback to once again finish in the top six in 2023-24 but were again beaten by the team who eventually won the final as they lost 2-1 on aggregate to an Oxford side, who had finished seven points below them in the regular season.
A mixed start to last season followed but a 6-1 demolition of local rivals Cambridge United moved them to within three points of the play-off places.
That was as good as it got and they were at one stage in serious danger of dropping back down to the fourth tier for the first time since Ferguson took them up out of that division in 2007-08.
In the end, they finished five points clear of the drop zone but lost key players over the summer including Kwame Poku, Ricky-Jade Jones, Hector Kypriano and Mallik Mothersille.
Six defeats in their opening seven league games set the tone for this campaign from which Ferguson ultimately could not improve.
