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

Campaign receipts per two-year cycle
Cycle	Receipts
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.

Cycle2025–26 2023–24 2021–22 2019–20 2017–18 2015–16 2013–14

PAC contributions

2017–18

From committees

$616K

Net of refunds

Committees

190

Contributions

359

By type of committee

All Corporate$254K · 41%Labor union$173K · 28%Trade association$82,250 · 13%Ideological / issue$55,500 · 9%Membership org$23,108 · 4%Leadership PAC$16,000 · 3%Cooperative$13,000 · 2%

Committee	Company / sponsor	Member's trades	Contributions	Total
International Union of Painters and Allied Trades Political Action Together Political CommitteeLabor union	International Union of Painters and Allied Trades	—	3	$10,000
Machinists Non Partisan Political League of the International Association of Machinists & Aerospace WorkersLabor union	International Association of Machinists and Aerospace Workers	—	2	$10,000
United Food and Commercial Workers International Union Active Ballot ClubLabor union	United Food and Commercial Workers International Union	—	3	$10,000
Nea Fund for Children and Public EducationLabor union	—	—	2	$10,000
Laborers' International Union of North America (LIUNA) PACLabor union	Laborers' International Union of North America	—	4	$10,000
American Federation of State County & Municipal Employees P E O P L ELabor union	District Council 37, AFSCME Public Employees Organized for Pol & Leg Equality	—	5	$10,000
American Federation of Teachers, Afl-Cio Committee on Political EducationLabor union	American Federation of Teachers, Afl-Cio	—	2	$10,000
Engineers Political Education Committee (EPEC)/International Union of Operating EngineersLabor union	Iuoe 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 union	International Brotherhood of Teamsters	—	2	$10,000
Anheuser-Busch Companies Inc. Political Action CommitteeCorporate	Anheuser-Busch Companies Inc.	—	2	$10,000
American Crystal Sugar Company Political Action CommitteeCooperative	American Crystal Sugar Compay	—	2	$10,000
The Boeing Company Political Action CommitteeCorporate	BABoeing Co	4 trades	6	$10,000
National Beer Wholesalers Association Political Action CommitteeTrade association	—	—	4	$10,000
National Air Traffic Controllers Association PACLabor union	National Air Traffic Controllers Association	—	8	$10,000
Thermo Fisher Scientific Inc. PACCorporate	TMOThermo Fisher Scientific Inc.	—	3	$10,000
American College of Radiology Association PACIdeological / issue	American College of Radiology Association	—	4	$10,000
PAC for a Level Playing FieldLeadership PAC	—	—	2	$10,000
LPL Financial LLC Political Action Committee (LPL PAC)Corporate	LPLALPL Financial Holdings Inc.	—	4	$9,000
United Transportation Union Political Action Committee (UTU PAC)Labor union	United Transportation Union	—	4	$7,500
Culac the PAC of Credit Union National AssociationTrade association	Credit Union National Association	—	3	$7,500
American Association for Justice Political Action Committee (AAJ PAC)Trade association	American Association for Justice	—	7	$7,500
International Association of Firefighters Interested in Registration and Education PACLabor union	International Association of Fire Fighters	—	3	$7,500
Sanofi US Services Inc. Employees' Political Action CommitteeCorporate	Sanofi US Services Inc.	—	3	$7,500
Liberty Mutual Insurance Company - PACCorporate	Liberty Mutual Insurance Company	—	5	$7,500
Dell Technologies Political Action CommitteeCorporate	DELLDell Technologies Inc.	—	2	$7,500

Top 25 of 190Show all

Contributions (incl. in-kind) from PACs, party and other candidate committees to Katherine M. Clark's campaign committees in the 2017–18 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

2017–18 · through the latest regular FEC reports

Supporting

$10

Opposing

Spenders

Spender	Supporting	Opposing
Sierra Club Political CommitteeMembership org	$10	—

1 spender

Independent expenditures for or against Katherine M. Clark in the 2017–18 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.