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Katherine M. Clark

Katherine M. Clark

Representative · MA-5
DemocratCurrent memberServed 2013–presentAge 63

Campaign fundraising

House · MA-05
Raised, 2025–26
$5.03M
Spent
$5.12M
Cash on hand
$1.23M
Reported through
Oct 14, 2026
Current cycle

Receipts per two-year cycle

$0$5M$10M2013–14: $2,246,750.002013–142015–16: $1,317,553.842015–162017–18: $1,492,081.452017–182019–20: $1,815,927.752019–202021–22: $2,174,711.802021–222023–24: $4,984,888.622023–242025–26: $5,026,057.812025–26
Campaign receipts per two-year cycle
CycleReceipts
2013–14$2,246,750.00
2015–16$1,317,553.84
2017–18$1,492,081.45
2019–20$1,815,927.75
2021–22$2,174,711.80
2023–24$4,984,888.62
2025–26$5,026,057.81

2026 race · MA-05

  • Katherine Clark · D · Incumbent$5.03M
  • Jonathan Paz · D · Challenger$119K
  • Tarik Samman · D · Challenger$44K

Total receipts for the whole 2026 election period. 3 candidates reported receipts.

Source: Federal Election Commission candidate totals, all authorized campaign committees combined; principal campaign committee KATHERINE CLARK FOR CONGRESS; cycles since 2013–14; updated Nov 4, 2026. No individual donor data.

Cycle2025–262023–242021–222019–202017–182015–162013–14

PAC contributions

2013–14
From committees
$425K
Net of refunds
Committees
122
Contributions
210

By type of committee

AllLabor union$167K · 39%Corporate$114K · 27%Membership org$49,750 · 12%Trade association$27,000 · 6%Ideological / issue$26,750 · 6%Candidate committee$23,000 · 5%Leadership PAC$18,100 · 4%
CommitteeCompany / sponsorMember's tradesContributionsTotal
Laborers' International Union of North America (LIUNA) PACLabor unionLaborers' International Union of North America—6$15,000
Int'l. Association of Bridge, Structural, Ornamental & Reinforcing Iron Workers (IPAL)Labor unionInt'l. Association of Bridge, Structural, Ornamental & Reinforcing Iron Workers—3$15,000
Raytheon Company Political Action CommittteeCorporateRTXRTX Corp—4$15,000
American Association for Justice Political Action Committee (AAJ PAC)Membership orgAmerican Association for Justice—4$12,500
American Federation of State County & Municipal Employees P E O P L ELabor union——4$11,000
National Association of Realtors Political Action CommitteeMembership orgIllinois Rpac Fed—5$11,000
Off the Sidelines PACIdeological / issueGillibrand—3$11,000
Carpenters Legislative Improvement Committee United Brotherhood of Carpenters and JoinersLabor unionUnited Brotherhood of Carpenters and Joiners of America—2$10,000
International Brotherhood of Electrical Workers Political Action CommitteeLabor unionInternational Brotherhood of Electrical Workers—2$10,000
Engineers Political Education Committee (EPEC)/International Union of Operating EngineersLabor unionIuoe Local 965 Pef—2$10,000
D.R.I.V.E. Democrat, Republican, Independent Voter Education (THE PAC OF THE International Brotherhood OF Teamsters)Labor unionInternational Brotherhood of Teamsters—2$10,000
Emily's ListMembership orgEmily's List Women Vote—2$10,000
Biogen Idec Political Action CommitteeCorporateBIIBBiogen Inc.—4$10,000
Nea Fund for Children and Public EducationLabor union——2$9,000
American Federation of Teachers, Afl-Cio Committee on Political EducationLabor union——4$8,500
International Union of Painters and Allied Trades Political Action Together Political CommLabor unionInternational Union of Painters and Allied Trades—2$7,500
International Association of Firefighters Interested in Registration and Education PACLabor unionInternational Association of Fire Fighters—2$7,500
Sanofi US Services Inc. Employees' Political Action CommitteeCorporate——3$7,500
Cubist Pharmaceuticals Inc. PAC (Cubist PAC)Corporate——4$7,500
Thermo Fisher Scientific Inc. PACCorporateTMOThermo Fisher Scientific Inc.—4$7,000
Zeneca Inc. Political Action CommitteeCorporate——3$5,500
Alkermes, Inc. Political Action CommitteeCorporateALKSAlkermes plc.—2$5,100
Machinists Non Partisan Political League of the International Association of Machinists & Aerospace WorkersLabor unionInternational Association of Machinists and Aerospace Workers—1$5,000
United Food and Commercial Workers International Union Active Ballot ClubLabor unionUnited Food and Commercial Workers International Union—2$5,000
UAW - V - Cap (UAW Voluntary Community Action Program)Labor unionInt'l Union United Automobile Aerospace & Agricultural Implement Workers of America UAW—1$5,000
Top 25 of 122Show all

Contributions (incl. in-kind) from PACs, party and other candidate committees to Katherine M. Clark's campaign committees in the 2013–14 cycle, net of refunds, from the committees' own FEC reports. Donations from individuals passed through WinRed or ActBlue are not included. Company and ticker matched by name; no ticker means no listed company was found; for other committees the sponsor as registered with the FEC. Member's trades counts every disclosed trade in that company's stock. Filers that aren't committees are combined into one line.

Outside spending

2013–14 · through the latest regular FEC reports
Supporting
$140K
Opposing
$0
Spenders
3
SpenderSupportingOpposing
Women Vote!Super PAC$140K—
Individuals and groups that aren't committees (1 combined)$57—
Sierra Club Political CommitteeMembership org$20—
3 spenders

Independent expenditures for or against Katherine M. Clark in the 2013–14 cycle, through the latest regular FEC reports. Spending reported on 24- and 48-hour notices in the final weeks before an election appears here once the spender's next regular report is processed. Spenders that aren't registered committees (individuals and groups filing FEC Form 5) are combined into one line.

Source: Federal Election Commission bulk data (committee contributions and independent expenditures); updated Nov 4, 2026. No individual donor data.