Mr. Adams said at a news conference on Monday that he was not worried.

“Everyone is catching up to me,” he said. “I started raising early.”

The mayor actually received $36,000 in contributions, but he ended up netting only $19,000 after adjustments and $21,000 in refunds, including $3,700 to Brock Pierce, a cryptocurrency investor who was recently photographed with Mr. Adams at President Trump’s inauguration. Mr. Pierce had already donated the legal limit of $2,100 to Mr. Adams in 2023.

The mayor had only 38 donors during this filing period. .

A separate super PAC supporting Mr. Cuomo called “Fix the City” raised nearly $1.5 million from 17 donors, including $250,000 from Scott Rechler, a major real estate developer, and $100,000 from SkyBridge Capital, the hedge fund founded by Anthony Scaramucci, who donated to Mr. Adams in 2021 and 2024.

Mr. Cuomo and Mr. Adams have some overlap in terms of their voting and donor bases. Marcella Guarino Hymowitz, whose husband, Gregg S. Hymowitz, is a prominent hedge fund manager, gave $150,000 to Mr. Cuomo’s super PAC this month. In 2021, Mr. Hymowitz gave $100,000 to a super PAC that supported Mr. Adams; Ms. Hymowitz also gave $50,000 to the group.

Luciana Fato, a former top lawyer at the insurance company American International Group, donated $100,000 to Mr. Cuomo’s super PAC after donating to Mr. Adams’s campaign in 2021. Jed Walentas, who runs the development firm Two Trees Management, has donated to Mr. Cuomo and Mr. Adams and to a nonprofit group that promoted Mr. Adams.