Former Chief Executive Officer of Anglo Irish Bank David Drumm has been given a suspended sentence of 15 months for giving illegal loans to ten developers to prop up Anglo's share price in 2008.

Drumm, 51, from Skerries in Co Dublin is already serving a six-year jail sentence imposed last month for conspiracy to defraud and false accounting. 

A jury found him guilty after an 87-day trial of directing a conspiracy to dress up Anglo's accounts by €7.2bn  and presenting the false figures to the market. 

Mr Drumm is also automatically disqualified from serving as the director of a company for five years. 

He pleaded guilty last month to ten counts of authorising or permitting Anglo to give unlawful financial assistance to ten developers - the so-called 'Maple 10' - to buy shares in the bank between 10-17 July 2008.

The Maple 10 were Brian O'Farrell, Gerard Conlon, Gerard Gannon, Gerard Maguire, John McCabe, Joseph O'Reilly, Patrick Kearney, Patrick McKillen, Seamus Ross and Sean Reilly. 

The loans were part of a scheme designed to unwind a stake of more than 25% in the bank, built up secretly by businessman Sean Quinn.

Mr Quinn bet on the bank's share price using financial instruments called Contracts for Difference.

The bank and the regulatory authorities were concerned that he would not be able to make the payments due on his bets, leading to his shares flooding the market and a collapse of Anglo's share price. 

Lawyers for the prosecution told the court that they intended to withdraw the remaining 21 charges faced by Mr Drumm.

These included six charges of giving illegal loans to members of Mr Quinn's family, 14 charges relating to falsifying loan facility letters in relation to the scheme and one charge of breaching an EU transparency directive by publishing an interim management report that failed to disclose Anglo's substantial exposure to Mr Quinn.

Today's sentencing brings to an end almost a decade of criminal investigations into the former Anglo Irish Bank. 

Mr Drumm's former colleagues, Anglo's former Finance Director, Willie McAteer and former head of Irish lending, Pat Whelan were convicted in 2014 of giving illegal loans to the same ten developers.

But they were sentenced to community service after the judge found the financial regulator had led them into error and illegality.

Judge Karen O'Connor said Mr Drumm had pleaded guilty to the offences, thereby avoiding a lengthy and difficult trial.

However, she said he was the CEO of the bank at the time. And it was up to him to ensure transparency and compliance with legislation. He was the instigator of the scheme and the markets and people who access the markets were entitled to transparency.

The judge said it seemed clear the Financial Regulator was anxious to have Mr Quinn's position unwound and that he knew of a plan to lend money to members of the Quinn family.

There was a degree of ambiguity about what was known in relation to the Maple 10 developers but, she said, the regulator was aware of efforts being made to resolve the difficulty and vulnerability created by Mr Quinn.

She said the situation was not created by Anglo. Mr Quinn had made the bank vulnerable and exposed it.

She said the 240 hours of community service imposed on Mr Drumm's former colleagues Willie McAteer and Pat Whelan for the same offences had not been challenged by the Director of Public Prosecutions.

Community service was not an option for Mr Drumm who was serving a sentence and he had a particular position of seniority in the bank.

She took two years as a starting point for the sentence and reduced it in light of mitigating factors to 15 months, which she wholly suspended. It will run alongside the sentence Mr Drumm is already serving.

The DPP confirmed the other 21 counts faced by Mr Drumm would not be proceeding.

Mr Drumm's defence counsel, Brendan Grehan told Judge O'Connor "that is everything".

Nine and a half years of criminal investigations into Anglo Irish Bank are now at an end.