Alan Armstrong bought Quest Diagnostics Incorporated (NYSE: DGX)
Alan Armstrong (R-OK), a U.S. Senator, has disclosed 2 trades in Quest Diagnostics Incorporated (DGX) since 2026, all purchases, worth an estimated $16K in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts).
The trade highlighted here is a purchase: Alan Armstrong bought $1,001 - $15,000 of Quest Diagnostics Incorporated (NYSE: DGX) on March 27, 2026. Since that trade, DGX is up +20.36% against the S&P 500 up +16.97%, an outperformance of +3.39%.
Across these filings, Alan Armstrong has been a net buyer of DGX. The most recent disclosed DGX transaction shown was dated March 30, 2026. Each row in the table below links to that trade and its post-trade performance versus the market.
Data updated
Alan Armstrong's DGX trades vs the price
DGX is up +20.36% since Alan Armstrong bought on March 27, 2026, versus +16.97% for the S&P 500.
Performance since this trade
All Alan Armstrong DGX trades
Alan Armstrong & DGX trading FAQ
Is it legal for Alan Armstrong to trade Quest Diagnostics Incorporated (DGX) stock?
Yes. Members of Congress are allowed to trade individual stocks, including Quest Diagnostics Incorporated (DGX), 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 Alan Armstrong buy DGX?
Alan Armstrong disclosed a purchase of $1,001 - $15,000 of Quest Diagnostics Incorporated (DGX) on March 27, 2026, according to public STOCK Act filings.
How has DGX performed since Alan Armstrong's trade?
Since Alan Armstrong bought DGX on March 27, 2026, the stock is up +20.36%, versus +16.97% for the S&P 500 over the same period, an outperformance of +3.39%.
How many times has Alan Armstrong traded DGX?
Alan Armstrong has disclosed 2 DGX trades since 2026. 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 DGX trades?
Quantellect tracks every disclosed congressional trade in Quest Diagnostics Incorporated (DGX) on the Quest Diagnostics Incorporated congressional trading page, which aggregates filings across all members of Congress.
Alan Armstrong's DGX tradesAll congressional filings for Quest Diagnostics IncorporatedAlan Armstrong'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.