Tom Coburn

Oklahoma Republican

Sen. Tom Coburn

What the Post found

Estimated wealth

$3.2 million in 2010

38% since 2004

Financial approach

Heavy Trader

Invests in: Mixed, Finance / Insurance / Real Estate, Energy / Natural Resources

Coburn’s financial disclosure forms

Each year, lawmakers are required to file financial disclosure forms that list assets, liabilities, stock transactions, outside employment, spousal employment and travel reimbursements.

Stock trades and overlapping interests

In 2007, Coburn placed a legislative hold on the Genetic Information Nondiscrimination Act, saying he wanted changes to address fears about exposing employers and insurance companies to lawsuits. Coburn reported buying bonds in a genetic technology company the day a compromise he sought was reached on the bill. Coburn then lifted the hold and voted for the bill.

Response by Coburn

Coburn said the Affymetrix purchases were made without his knowledge by his investment adviser. He said the timing was coincidental. His office said it has no record of any contact with Affymetrix.

Coburn’s financial portrait

The Post examined the personal finances disclosed by all members of Congress and computerized by Center for Responsive Politics to show how they manage their assets and invest their money.


Senate median

Estimated wealth

$3.2 million in 2010

Change in estimated wealth

38% since 2004

More wealth and more aggressive

Lawmakers who use riskier investment strategies and/or borrowing to increase wealth.


More aggressive

Financial approach

Heavy Trader

32 lawmakers are heavily involved in the stock and other markets, and they or their brokers are constantly buying and selling assets. The practice is seen as one of the most aggressive investment strategies.

What industries does Coburn invest in?

Many assets can be tied to specific industries, such as finance, agriculture or
natural resources. "Mixed" investments are assets not tied to a specific industry.

Coburn's estimated
2010 liabilities


What asset types does Coburn hold?

Assets are lumped into groups such as real estate, stocks,
mutual funds or cash.

NOTE: "Mixed" investments are assets that are not tied to a specific industry. Charted change in annual estimated wealth is capped at 200 percent increase and 100 percent decrease for clarity. See the full methodology here.
SOURCES: Congressional financial disclosure forms, Center for Responsive Politics, Washington Post analysis.

About the data

The estimation of assets for lawmakers is based on calculating the midpoint of reported value ranges for holdings and liabilities that members of Congress list on financial disclosure forms. It does not reflect assets lawmakers are not required to disclose, such as personal residences and non-interest bearing bank accounts. The estimation is not intended to provide a complete portrait of the net worth of each legislator, but rather show their relative standing in Congress and how their holdings have changed over time.

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