Finance reports for the period ending May 17 show that Padilla has $340,235 in cash left in the bank as the June 3 primary nears.
Derek Cressman, a Democrat and former administrator at Common Cause, reported raising the second largest amount in the campaign so far, $620,000, including $354,000 in loans and contributions from his personal finances. He ended the period with $53,00 in cash on hand.
Dan Schnur, a "no-party-preference" candidate who teaches political science at USC, has brought in $455,415, and had $99,868 left in the account as of Saturday.
Republican Pete Peterson reported raising $174,916, with $11,639 left over. He is executive director of the Davenport Institute for Public Engagement and Civic Leadership, a think tank at Pepperdine University.
Green Party candidate David Curtis has raised $6,243, while Democrat Jeffrey H. Drobman and Republican Roy Allmond have not yet reported raising any money.