The fast food chain sued Mr Easterbrook last week, seeking to reclaim millions in compensation paid to him.
McDonald’s sacked Mr Easterbrook in November after he admitted to exchanging videos and text messages in a consensual, non-physical relationship with an employee.
But McDonald’s said it conducted a second investigation last month after it received an anonymous tip that Mr Easterbrook had a physical relationship with another employee.
McDonald’s now alleges that Mr Easterbrook had sexual relationships with three employees and destroyed evidence.
McDonald’s is improperly attempting to get out of its bargain nine months after the fact and despite admitting it always possessed the information upon which is it now relying
The company’s board says it would not have agreed to Mr Easterbrook’s separation agreement – which allowed him to keep more than £32 million in stock-based benefits – if it had that alleged information when he was dismissed.
In a response filed late on Friday in Delaware Chancery Court, Mr Easterbrook said McDonald’s hired outside lawyers to investigate his conduct, including interviewing employees and reviewing electronic information, before it signed off on his separation agreement.
“McDonald’s is improperly attempting to get out of its bargain nine months after the fact and despite admitting it always possessed the information upon which is it now relying,” Mr Easterbrook’s response read.
McDonald’s rejected Mr Easterbrook’s arguments on Monday.
“McDonald’s stands by its complaint, both the factual assertions and the court in which it was filed,” a spokesperson for the company said.
