Clubs were busy bolstering promotion bids or steeling their squad as they fight against relegation to the fourth tier.
Some business carried out by Pompey and their rivals was undoubtedly more eye-catching than other deals.
So we’ve assembled what we believe to be the best pieces of business around the division across the winter window.
5. Jay Matete (Sunderland - Plymouth, loan)
Dynamic midfielder with the power to significantly add to Plymouth's midfield on loan from Sunderland. Photo: Frank Reid
6. Harry Boyes (Sheffield United - Lincoln, loan)
Promising central defender spent the first half of the season with Forest Green - and the Sheffield United talent now gets chance to further his reputation with Lincoln. Photo: Darren Staples
7. George Hirst (Leicester - Ipswich, loan)
One which would grate on many Pompey fans. Showed his quality with 15 goals last term and significantly adds to an embarrassment of Ipswich attacking riches. Photo: CameraSport - Rob Newell
8. Nathan Broadhead (Everton - Ipswich, undisclosed)
Ipswich flexed their financial muscle to land the striker for £1.5m from Everton, for a deal which could eventually worth £4m. Photo: Jan Kruger