John Thune

Republican / Senate / South Dakota

- Net Worth Est.

- Trade Volume

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- Last Traded

Current Member Yes
Years Active 1997 - Present
Age 64
John Thune was born in Pierre, South Dakota, in 1961. Thune's professional experience included working as a staffer for U.S. Sen. James Abdnor (R), for the Small Business Administration and directing the South Dakota State Republican Party, state Railroad Division, and state Municipal League. He served in the U.S. House of Representatives from 1997 to 2003.

* Biography data provided through our partnership with Ballotpedia.

Supporters
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Corporate Donors
Proposed Legislation
Trades
Live Stock Portfolio
Net Worth
Revolving Door

Trade Volume by Year

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Trades

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Estimated excess return of the underlying stock since the transaction

Stock	Transaction	Filed	Traded	Description	Excess Return

Estimated Live Stock Portfolio

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Net Worth

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Top Holdings

Disclosed Holdings

Ticker	Asset Type	Asset Name	Amount	Owner	Report Year	Filed

*These holdings are collected from annual financial disclosure statements. There are occasionally parsing errors, and it does not include recent transactions.

Revolving Door

Former staff of John Thune who went on to register as lobbyists, and the clients they were disclosed as representing at the time of filing. Parsed from the covered-position disclosures on Lobbying Disclosure Act filings — see the full Revolving Door dashboard.

6 Former staff who have lobbied

13 Public companies represented

44 Clients in total

Jul 20, 2026 Most recent filing

Lobbyist	Role in this office	Disclosed clients	Lobbying firm	Latest filing
Elle Westra New	Intern, Senator John Thune; Staff Assistant, Senator John Thune	IMMX CHILDREN'S HEALTH DEFENSE UMBRA SPACE	AXADVOCACY GOVERNMENT RELATIONS	Jul 20, 2026
Jennifer Bell	Legislative Assistant, Rep. John Thune (R-SD)	COVENANT HEALTHCARE SOCIETY OF HOSPITAL MEDICINE	CHAMBER HILL STRATEGIES	Jul 19, 2026
Paul Poteet New	Senior Policy Advisor and Tax and Trade Counsel, Sen. John Thune; Republican Staff Director, Finance Subcommittee on International Trade, Customs and Global Competitiveness.	LYFT NEOV DRAGONFLY THERAPEUTICS, INC. ELEMENTL POWER INC. +5 more	FGS GLOBAL (US) LLC (FKA FGH HOLDINGS LLC)	Jul 16, 2026
Joseph Boddicker New	Tax Counsel, Senate Finance Cmte; Tax & Trade Counsel, Sen. Thune; Staff Dir., Senate Finance Subcmte on Tax; Tax Counsel/LA, Sen. Heller; Staff Dir., Senate Finance Subcmte on Energy; Finance Counsel, Sen. Gardner; LA/LC/SA, Sen. Thune.	ALV BATRA BSX MHK +6 more	ALSTON & BIRD LLP	May 27, 2026
Jane Lucas New	Special Assistant to the President, White House Office of Legislative Affairs; Principal Deputy Director, IOS-Office of Health Reform, HHS; Legislative Director, U.S. Senator John Thune.	ALV BATRA BSX CTEV +21 more	ALSTON & BIRD LLP	Apr 07, 2026
Summer Mersinger New	Commissioner, CFTC; Chief of Staff, CFTC Commissioner Stump; Director, Office of Legislative Affairs, CFTC; Executive Director, General Counsel, DC Chief of Staff, Senator Thune	BLOCKCHAIN ASSOCIATION	BLOCKCHAIN ASSOCIATION	Jan 20, 2026

Spending in Support of John Thune

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Outside Spending

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Top Receipts

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* Note: This data may contain refunds given to the committee. Names are hidden for individual donations below $250,000.

Outside Spending

Contributor	Support/Oppose	Amount	Date	Filed	Amendment	Memo Text

Other Candidates in District

Candidate	Party	Fundraising over Last Year	Track

Corporate PAC Donors

Ticker	Company Committee	Recipient Committee	Amount	Date	Party	Cycle

Proposed Legislation

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Title	Introduced	Latest Action Date