The campaign of Republican congressional candidate Richard Tisei said today he had raised $435,000 in the fourth quarter of 2013, a substantial sum for a congressional race.

Tisei, who officially launched his campaign to unseat US Representative John Tierney last week, opened a fund-raising account in October, which allowed him to begin stockpiling cash.

A former state senator, Tisei ended the year with $394,000 in the bank, his spokesman said.

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Tierney’s fund-raising report for October through December was not available on the Federal Election Commission’s website Wednesday afternoon. Daniel Rubin, a Tierney spokesman, said the campaign was still working on its report. Tierney had $561,000 in cash on hand at the end of September, according to filings.

A candidate’s fund-raising number is a key metric in determining the health of his or her campaign.

A Democrat who represents the North Shore-anchored Sixth Congressional District, Tierney also faces a primary challenge from Seth Moulton, a former Marine, and Marisa DeFranco, an immigration lawyer.

Federal candidates’ fourth-quarter fund-raising reports are due to the FEC on Friday.