Whitman's latest multimillion-dollar contribution was made last Thursday, two days after the gubernatorial primary. It was recorded by the secretary of state's office on Monday.
Whitman, former eBay executive, now has spent more than $91 million of her own money in trying to secure her first political office. The job pays $173,987 annually, but Whitman's campaign has said she, Like Gov. Arnold Schwarzenegger, would not take a salary if elected.
Whitman will square off against Democratic gubernatorial candidate Jerry Brown in the Nov. 2 general election.