Senate fundraising figures for the third quarter are trickling in this week ahead of Saturday’s filing deadline, and several incumbents and challengers posted hauls of more than $1 million.

Ohio Treasurer Josh Mandel (R) raised more than Sen. Sherrod Brown (D) for the second quarter in a row, bringing in $1.5 million compared with the Senator’s $1.25 million.

The Ohio Democrat still has a hefty $4.2 million war chest. A Mandel aide said the campaign was not ready to release its cash-on-hand total.

The third fundraising quarter wrapped up Sept. 30, and many candidates will wait the allotted 15 days after that to file their financial reports.

Sen. Debbie Stabenow is among the few who have already released their results. The Michigan Democrat raised $1.2 million in the third quarter, bringing her war chest to $5 million, according to fundraising figures obtained by Roll Call. That’s slightly more than the frontrunner for the GOP nomination, former Rep. Pete Hoekstra, who raised about $1 million. Charter schools executive Clark Durant (R) brought in $750,000 for his campaign.

In Nebraska, Attorney General Jon Bruning (R) brought in $584,000 for his challenge to Sen. Ben Nelson (D), according to the Washington Post. He has $1.6 million in the bank.

Another Nelson foe, state Sen. Deb Fischer (R), raised $228,600 and banked $206,000. State Treasurer Don Stenberg is also running for the GOP nod, but he has not made his fundraising totals public yet.

Nelson’s campaign manager, Paul Johnson, said the Senator’s fundraising figures were not ready to be released.

Finally, two Republican Senators vulnerable to primary challenges posted big hauls. 

Sen. Orrin Hatch (R-Utah) raised $1.6 million in the past three months, giving him $4 million in the bank.

Sen. Dick Lugar (R-Ind.) raised $842,500 in the third quarter, giving him $3.8 million in cash on hand. A spokesman for Lugar’s primary opponent, state Treasurer Richard Mourdock, confirmed in an e-mail that the campaign’s fundraising totals were not available for release yet.

Kyle Trygstad contributed to this report.