Celtic 2025 summer transfers: Every confirmed signing and sale for Brendan Rodgers' side

Celtic further demonstrated their dominance over the Scottish Premiership in 2024-25, being crowned the champions of Scotland for the fourth time in a row. 

Brendan Rodgers's side also won the Scottish League Cup, though the famous treble eluded them after a narrow loss to Aberdeen on penalties in the Scottish FA Cup final. 

Celtic also fared respectably in the Champions League, reaching the knockout phase and putting up a solid fight against German giants Bayern Munich, where they lost 3-2 on aggregate in the knockout playoff round.

The Hoops have since lost a key member of Rodgers's squad from last season, with Nicolas Kuhn departing for Serie A side Como over the summer.

In an attempt to bolster their ranks, Celtic have paid fees to recruit defender Hayato Inamura, winger Benjamin Nygren and forward Shin Yamada. 

They have also re-signed Kieran Tierney following his Arsenal exit, while Ross Doohan and Jahmai Simpson-Pusey have arrived on a free and loan respectively. 

The deals kept happening until the very last moment for Celtic, as the Bhoys also added a number more additions in the final days of the window.

Here, Sports Mole tracks all of Celtic's summer transfer business.

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Celtic confirmed transfers in: Summer 2025

Kieran Tierney (free from Arsenal)

Ross Doohan (free from Aberdeen)

Callum Osmand (free from Fulham U21)

Benjamin Nygren (£2m from Nordsjaelland)

Hayato Inamura (£250,000)

Shin Yamada (£1.5m from Kawasaki Frontale)

Jahmai Simpson-Pusey (loan from Manchester City)

Sebastian Tounekti (undisclosed from Hammarby)

Michel Ange Balikwisha (undisclosed from Royal Antwerp)

Marcelo Saracchi (loan from Boca Juniors)

Celtic confirmed transfers out: Summer 2025

Scott Bain (free to Falkirk)

Greg Taylor (free to PAOK)

Daniel Cummings (free to West Ham United)

Gustaf Lagerbielke (£2.2m to Braga)

Nicolas Kuhn (£16.5m to Como)

Maik Nawrocki (loan to Hannover 96)

Luis Palma (loan to Lech Poznan)

Adam Montgomery (loan to Livingston)

Josh Clarke (loan to Partick Thistle)

Kwon Hyeok-kyu (undisclosed to Nantes)

Marco Tilio (undisclosed to Rapid Vienna)

Adam Idah (undisclosed to Swansea City)

Stephen Welsh (loan to Motherwell)

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How much have Celtic spent and earned during the summer 2025 transfer window?

Celtic total spend summer 2025: £3.75m

Celtic total income summer 2025: £18.7m

Celtic total net spend summer 2025: £14.95m

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Latest Celtic transfer rumours

You can find a complete list of the latest Celtic transfer rumours by clicking here.

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Celtic squad

You can view Celtic current squad ahead of the 2025-26 season by clicking here.

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