Lynch, challenging Markey for the Democratic nomination, brought in more than $1.5 million through April 10.

Markey now has $4.6 million cash on hand, after spending about $3.2 million. Lynch has more than $514,000 cash on hand, after spending more than $1.7 million.

A little more than half of the money Markey raised, 53 percent, came from out of state, while 47 percent came from Massachusetts donors, and 83 percent of those who contributed did so in amounts of $100 or less, according to The Associated Press.

Ninety-three percent of Lynch's donors live in Massachusetts, and 45 percent of his contributors gave $100 or less.

Republican Gabriel Gomez, a local businessman who counts a number of Mitt Romney alums as members of his campaign team, raised the most of all three GOP contenders for the seat, bringing in $1.2 million.

That includes $600,000 he loaned his own campaign, according to AP, and he now has a little less than $500,000 cash on hand for the final few weeks of the campaign.

Former George W. Bush official Michael Sullivan raised $174,000 and has $96,000 cash on hand, while state Rep. Daniel Winslow raised just under $400,000 and has $142,000 cash on hand, after contributing $158,000 of his own funds to his campaign.