
John B. Larson bought Mastercard Inc (NYSE: MA)
John B. Larson (D-CT), a U.S. Representative, has disclosed 4 trades in Mastercard Inc (MA) since 2015, 1 purchase and 3 sales, worth an estimated $57K in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts).
The trade highlighted here is a purchase: John B. Larson bought $15,001 - $50,000 of Mastercard Inc (NYSE: MA) on January 15, 2015. Since that trade, MA is up +633.52% against the S&P 500 up +342.60%, an outperformance of +290.92%.
Across these filings, John B. Larson has been a net seller of MA (a buy-to-sell ratio of 0.33). The most recent disclosed MA transaction shown was dated December 18, 2019. Each row in the table below links to that trade and its post-trade performance versus the market.
Data updated
John B. Larson's MA trades vs the price
MA is up +633.52% since John B. Larson bought on January 15, 2015, versus +342.60% for the S&P 500.
Performance since this trade
All John B. Larson MA trades
| Traded | Type | Size | Return | Est. profit | |
|---|---|---|---|---|---|
| December 18, 2019 | SELL | $284.05 | +98.32% | — | |
| August 15, 2019 | SELL | $261.71 | +115.25% | — | |
| August 1, 2018 | SELL | $192.61 | +192.47% | — | |
| January 15, 2015 | BUY | $76.80 | +633.52% | +$190K |
Estimated profit is shown for buys only, marked to the latest close. It is an estimate and does not net later sells, taxes, or fees.
John B. Larson & MA trading FAQ
Is it legal for John B. Larson to trade Mastercard Inc (MA) stock?
Yes. Members of Congress are allowed to trade individual stocks, including Mastercard Inc (MA), but the STOCK Act of 2012 requires them to publicly disclose each transaction within 45 days. Quantellect tracks those disclosures; this page does not imply the trade was improper.
When did John B. Larson buy MA?
John B. Larson disclosed a purchase of $15,001 - $50,000 of Mastercard Inc (MA) on January 15, 2015, according to public STOCK Act filings.
How has MA performed since John B. Larson's trade?
Since John B. Larson bought MA on January 15, 2015, the stock is up +633.52%, versus +342.60% for the S&P 500 over the same period, an outperformance of +290.92%.
How many times has John B. Larson traded MA?
John B. Larson has disclosed 4 MA trades since 2015 (1 purchase and 3 sales). Every disclosed trade is listed on this page.
How soon must members of Congress disclose a trade?
Under the STOCK Act, members of Congress must publicly report a covered transaction within 45 days of the trade. Filings can still be delayed, amended, or contain errors.
Where can I see all congressional MA trades?
Quantellect tracks every disclosed congressional trade in Mastercard Inc (MA) on the Mastercard Inc congressional trading page, which aggregates filings across all members of Congress.
John B. Larson's MA tradesAll congressional filings for Mastercard IncJohn B. Larson's full profile
Not investment advice. Congressional trading data is sourced from public STOCK Act disclosures, which are filed with a delay and may contain errors or be revised. Estimated prices and post-trade returns are derived algorithmically from public filings and end-of-day market data and describe historical activity, not a recommendation. Always do your own research and consult a licensed financial advisor before making investment decisions.

