The investment by sports media tycoon Radrizzani, through his company Aser Group Holding, meant a share of the club with the controversial Cellino.
Here is a look at Cellino's stormy tenure at Elland Road.
April 5 2014 - Independent QC overturns Football League's decision to disqualify Cellino due to a tax conviction and the Italian completes club takeover after agreeing deal in January to buy 75 per cent stake from Gulf Finance House
May 30 2014 - Manager Brian McDermott, who Cellino had previously tried to sack, departs club by mutual consent
June 19 2014 - Former Forest Green boss Dave Hockaday appointed head coach.
August 28 2014 - Hockaday sacked after six games.
September 22 2014 - Former Sturm Graz manager Darko Milanic appointed.
October 25 2014 - Milanic sacked after six games.
October 27 2014 - Acadmey boss Neil Redfearn signs rolling contract to become head coach
December 1 2014 - Cellino disqualified by Football League for three months after Italian court confirms tax evasion had been dishonest act
March 5 2015 - Cellino ban extended from March until end of 2014/15 season.
April 2 2015 - Redfearn's assistant Steve Thompson suspended following alleged fall out with director of football Nicola Salerno
April 18 - Six first-team players withdraw from Redfearn's squad before 2-1 defeat at Charlton
May 8 2015 - Cellino returns to office at Elland Road.
May 20 2015 - Uwe Rosler appointed head coach
Redfearn reverts back to academy boss
July 16 2015 - Redfearn resigns.
October 19 2015 - Football League announce Cellino disqualified following another tax conviction in Italy
He appeals again
On same day Rosler is sacked after 12 games and Steve Evans appointed
October 30 2015 - Cellino announces he will sell club to fans' group Leeds Fans United
November 4 2015 - Former Cagliari owner changes his mind over the sale, accusing Leeds Fans United of telling ''fairytales''
December 5 2015 - Leeds fans protest at 'pie tax' during home game against Hull after introduction of a mandatory Â£5 increase on South Stand ticket prices in return for food and drink vouchers
December 29 2015 - Cellino relents at last minute to avoid Football League action after banning Sky Sports production crew from entering Elland Road to broadcast game against Derby
February 10 2016 - Cellino insists he was joking after telling an Italian newspaper 'pie tax' introduced as punishment to fans who criticised him
February 14 2016 - Leeds deny taking legal action against Football League in bid to dismantle collective selling of television rights and instead sell their own games
February 29 2016 - Cellino instructs Evans not to speak to media after 4-0 defeat at Brighton
Later accuses head coach of ''talking too much''
March 4 2016 - Cellino's sons and club directors Ercole and Edoardo involved in abusive social media exchanges with club fans
Edoardo later apologises after calling one a ''spastic''
April 6 2016 - Football Association charges Edoardo for abusive and insulting comments and an ''aggravated breach'' as they included reference to disability
Leeds refuse to comment and are branded ''disgusting'' and an ''embarrassment'' by fans' group 'Time To Go Massimo'
May 31 2016 - Evans becomes the latest manager to fall foul of Cellino as his contract is not renewed
June 2 2016 - Garry Monk is appointed as Evans' replacement.
August 7 2016 - Leeds start the season with a 3-0 loss at QPR
Cellino is pictured in the stands alongside a man who turns out to be Andrea Radrizzani
November 28 2016 - With Leeds enjoying a period of stability on the field, Radrizzani admits he is working on a deal to purchase some of Cellino's stake in Leeds
December 7 2016 - As reports emerge that Cellino is to be banned by the FA for breaching its agent regulations over the sale of Ross McCormack, the Italian releases a statement saying he intends to appeal
December 8 2016 - The FA confirms it has banned Cellino for 18 months, effective of February 1, 2017, and fined both him and Leeds Â£250,000
January 4 2017 - The club announced the completion of an investment by Aser Group Holding that left Cellino with a 50 per cent share of the club
Source : PA