Portsmouth supporters went into the 2024-25 Championship campaign with low expectations after their promotion, but alarm bells were ringing when they failed to win a single game before matchday 10.
However, Pompey stuck by head coach John Mousinho and were rewarded for their faith when he guided the team to safety, securing another season in the division with a 16th-placed finish.
Portsmouth will be looking to build upon their work from last season by assembling a squad that can compete towards the top half of the Championship table.
Pompey have seen a number of players leave this summer, with academy product Matt Ritchie on the brink of becoming the latest departure, just one year after returning to his hometown club.
In regard to new arrivals, the south coast side have recruited Portsmouth-born John Swift on a free transfer and highly-rated Adrian Segecic from Sydney FC for an undisclosed fee.
Mousinho will want to see a few more faces through the door before his team kick off the new season with an away game against Oxford United on August 9.
Here, Sports Mole follows every arrival and departure from Portsmouth in the 2025 summer transfer window.
Portsmouth confirmed transfers in: Summer 2025
Adrian Segecic (undisclosed, Sydney FC)
John Swift (free, West Brom)
Portsmouth confirmed transfers out: Summer 2025
Christian Saydee (undisclosed fee to Wigan Athletic)
Kusini Yengi (free to Aberdeen)
Cohen Bramall (free)
Alexander Milosevic (free)
Anthony Scully (free)
Tom Lowery (free)
Toby Steward (loan to St Johnstone)
Ryley Towler (undisclosed to Lincoln City)
How much have Portsmouth spent and earned during the summer 2025 transfer window?
Portsmouth total spend summer 2025: £0m
Portsmouth total income summer 2025: £0m
Portsmouth total net spend summer 2025: £0m
Latest Portsmouth transfer rumours
You can find a complete list of the latest Portsmouth transfer rumours by clicking here.
Portsmouth squad
You can view Portsmouth's current squad ahead of the 2025-26 season by clicking here.