Are senators required to disclose stock trades?

Yes. The STOCK Act (Stop Trading on Congressional Knowledge Act), signed in 2012, requires US senators and members of Congress to publicly disclose stock trades over $1,000 within 45 days of the transaction.

Where does Capitol Gains get its data?

Capitol Gains aggregates and indexes public US Senate financial disclosure records to make them searchable by senator, ticker, and trade type.

How often is Senate stock trade data updated?

Capitol Gains runs automated checks for new Senate disclosures and indexes filings after they are collected and processed.

Which senators trade stocks the most?

Trading activity varies by senator and year. Capitol Gains tracks all active traders. Visit capitalgains.app to see the most recent disclosures sorted by activity.

Is it illegal for senators to trade stocks?

It is legal for senators to trade stocks, but it is illegal to trade on material non-public information obtained through their official duties. The STOCK Act makes this explicit and requires public disclosure of all trades.

What is the penalty for senators who fail to disclose trades on time?

The current penalty for late STOCK Act disclosure is $200 — widely criticized as too low to be a meaningful deterrent. Capitol Gains tracks disclosure dates so you can see which trades were filed late.

Markwayne Mullin

buy

$ISRG

Amount: $50,001 - $100,000
Transaction date: September 24, 2025
Filing date: Not captured

Source record link is not available for this legacy row.Source: legacy_unknown

Committee membership

Armed ServicesEnvironment & Public WorksIndian Affairs

Mullin sits on the Armed Services committee.

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Markwayne Mullin

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