Katherine Clark
The most recent attempt to refresh these records was only partly successful. What you see is the last data we received on November 9, 2026. An automatic update is scheduled and will try again.
Reporting period: January 1, 2025 to October 14, 2026. Money raised after that date is not included yet. Totals are the FEC's figures and already account for amended filings and refunds as the FEC records them.
Where the money came from
| Source | Amount | Share |
|---|---|---|
| Individual donors Donations from individual people (itemized gifts plus small unitemized ones). | $1,262,871 | 25% |
| PACs and other committees Contributions from political action committees and other non-party committees. | $2,107,007 | 42% |
| Transfers from the candidate's other committees Money moved between the candidate's own authorized committees. | $1,575,039 | 31% |
| Other reported receipts Computed: total receipts minus the lines above. Includes anything the FEC summary does not itemize here, such as refunds adjustments, interest or event income. | $81,141 | 2% |
Individual donors include small gifts the campaign was not required to itemize. These categories are kept apart on purpose: a gift from a person is not a gift from a company, and a PAC is not a person.
Fundraising history by cycle
Raised Spent
| Cycle | Raised | Spent | Reported through |
|---|---|---|---|
| 2025–2026 | $5,026,058 | $5,122,401 | October 14, 2026 |
| 2023–2024 | $4,984,889 | $4,766,148 | December 31, 2024 |
| 2021–2022 | $2,174,712 | $2,360,337 | December 31, 2022 |
| 2019–2020 | $1,815,928 | $1,542,099 | December 31, 2020 |
| 2017–2018 | $1,492,081 | $1,425,351 | December 31, 2018 |
| 2015–2016 | $1,317,554 | $669,000 | December 31, 2016 |
| 2013–2014 | $2,246,750 | $1,943,089 | December 31, 2014 |
Largest committee contributions
Political action committees (PACs) and other committees, grouped by their FEC committee ID. This list is built from the 87 largest itemized contributions the FEC lists for the campaign, so it is a partial list, not a complete ranking. The PAC total above is the complete figure.
| Committee | Reported total | Contributions |
|---|---|---|
| KATHERINE CLARK MAJORITY FUND | $1,300,188 | 17 |
| KATHERINE CLARK VICTORY FUND | $81,500 | 6 |
| DEFEND THE VOTE LEADERSHIP FUND | $43,750 | 3 |
| CLARK TRAHAN PRESSLEY VICTORY FUND | $18,000 | 2 |
| THE NORTHWESTERN MUTUAL LIFE INSURANCE COMPANY POLITICAL ACTION COMMITTEE (NMPAC) | $10,000 | 2 |
| DEPOSITORY TRUST AND CLEARING CORPORATION PAC - DTCC PAC; THE | $10,000 | 2 |
| PROGRESSIVE TURNOUT PROJECT | $10,000 | 2 |
| PRICEWATERHOUSECOOPERS POLITICAL ACTION COMMITTEE I | $10,000 | 2 |
| NATIONAL ELECTRICAL CONTRACTORS ASSOCIATION POLITICAL ACTION COMMITTEE | $10,000 | 2 |
| THE HOME DEPOT INC. POLITICAL ACTION COMMITTEE | $5,000 | 1 |
| MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY POLITICAL ACTION COMMITTEE | $5,000 | 1 |
| FRATERNITY & SORORITY POLITICAL ACTION COMMITTEE | $5,000 | 1 |
| FEDERATION OF AMERICAN HOSPITALS PAC | $5,000 | 1 |
| DELAWARE NORTH COMPANIES, INC. POLITICAL ACTION COMMITTEE | $5,000 | 1 |
| CORNING INCORPORATED EMPLOYEES POLITICAL ACTION COMMITTEE (COREPAC) | $5,000 | 1 |
Largest individual contributions
Each line is one itemized gift as reported, in the donor's own words (employer and occupation are what the donor told the campaign; an employer is not the donor). Gifts are never added together by name. Information about individual contributors is public record, but federal law forbids using it to solicit contributions or for any commercial purpose (52 U.S.C. § 30111(a)(4)). People who share a name are never combined here, and no street addresses are shown.
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Independent expenditures (outside spending)
Independent expenditures are spent by outside groups to support or oppose a candidate without coordinating with the campaign. They are not contributions to the campaign and are not included in the receipts above. Support and opposition are shown separately.
Spent to support
$10
Outside groups spending in favor of this candidate.
| Group | Reported |
|---|---|
| SIERRA CLUB INDEPENDENT ACTION | $10 |
Spent to oppose
$0
Outside groups spending against this candidate.
Official sources
- Candidate record at FEC.gov (ID H4MA05084)
- Campaign committee at FEC.gov (ID C00541888)
- Every itemized receipt for this cycle at FEC.gov
Data from the FEC's OpenFEC service. Imported November 9, 2026.
Figures are copied from Federal Election Commission (FEC) filings and are only as complete and current as those filings. Reports are filed on a schedule, so recent money may not appear yet. FloorHoller does not alter official amounts. A campaign contribution is a lawful, public, reported act. Nothing on this page suggests that any contribution, or any amount, is improper. How this works