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Michael K. Simpson

Republican / House / Idaho

- Net Worth Est.
- Trade Volume
- Total Trades
- Last Traded
  • Current Member Yes
  • Years Active 1999 - Present
  • Age 75
  • Simpson was born in Cassia County, Idaho and graduated from Blackfoot High School. He earned a bachelor's degree from Utah State University and his degree in dental medicine from Washington University. He worked as a dentist and served in the Idaho House.

    * Biography data provided through our partnership with Ballotpedia.

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

Trade Volume by Year

Buy
Sell
- Trade Volume
- Total Trades
Top Traded Sectors

Trades

Click on a trade or stock for more details

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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Current Holding
Portfolio Allocation

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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 Michael K. Simpson 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.

    1 Former staff who have lobbied
    0 Public companies represented
    1 Client in total
    Apr 21, 2025 Most recent filing
    Lobbyist Role in this office Disclosed clients Lobbying firm Latest filing
    Katherine Myers New Office of Rep. Mike Simpson (Senior Legislative Assistant, Intern); Office of Sen. Mike Crapo (Office Manager, Staff Assistant, Intern)
    SIERRA NEVADA COMPANY, LLC
    		SIERRA NEVADA COMPANY, LLC Apr 21, 2025

    Spending in Support of Michael K. Simpson

    Total Receipts

    Outside Spending

    Contributor
    Support/Oppose
    Amount
    Date
    Filed
    Amendment
    Details

    Top Receipts

    Name
    Amount
    Date
    Loaded
    Memo Text

    * 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

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    Company Committee
    Recipient Committee
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    Date
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    Cycle

    Proposed Legislation

    Click on a row for more details

    Title
    Introduced
    Latest Action Date