The sum relates to HP's ill-fated 2011 acquisition of British software firm Autonomy, which HP claimed was based on an inflated valuation due to fraud.
HP had accused Dr Lynch and Mr Hussain of orchestrating an elaborate fraud before the $11.1 billion purchase, a deal that subsequently unravelled.
A judge had previously ruled in HP's favour in 2022, with this week's decision determining the specific damages owed.
Dr Lynch, who died in 2024, consistently maintained his innocence and was acquitted of related criminal charges in the US.