Congress Stock Trades in Quest Diagnostics Inc. (DGX)

4 members of Congress disclosed 7 trades in Quest Diagnostics Inc. (DGX) in filings dated Jan 13, 2026 to Aug 13, 2026: 4 purchases and 3 sales.

Public record, not advice. These are periodic transaction reports that members of Congress file under the STOCK Act, collected from the Clerk of the House and the Senate Office of Public Records. Filings dated January 2, 2026 to October 5, 2026, collected October 6, 2026. Trades are due within 45 days, but some are filed months or even years later, so check each trade date. A disclosure says nothing about why a trade was made. It is not a recommendation to buy or sell anything, and MarketCast does not give investment advice.

At a glance

CompanyQuest Diagnostics Inc. (DGX)
Disclosed trades7
Purchases4
Sales3
Different members4
Most recent filingAug 13, 2026

Disclosed trades in DGX

MemberTradeDatesAmount
Carol D. Miller
House, WV
SaleTraded Mar 10, 2025
Filed Aug 13, 2026
$15,001 to $50,000
Julie Johnson
House, TX
SaleTraded Oct 30, 2025
Filed Aug 5, 2026
$1,001 to $15,000
Julie Johnson
House, TX
PurchaseTraded Oct 30, 2025
Filed Aug 5, 2026
$1,001 to $15,000
Alan Armstrong
Senate, OK
PurchaseTraded Mar 30, 2026
Filed Jul 21, 2026
$1,001 to $15,000
Alan Armstrong
Senate, OK
PurchaseTraded Mar 27, 2026
Filed Jul 21, 2026
$1,001 to $15,000
Julia Letlow
House, LA
SaleTraded Jul 24, 2025
Filed Jan 13, 2026
$1,001 to $15,000
Julia Letlow
House, LA
PurchaseTraded Apr 28, 2025
Filed Jan 13, 2026
$1,001 to $15,000

How to read this

  • Amounts are ranges. Filers report a bracket such as $1,001 to $15,000, not an exact figure.
  • Dates lag. Trades are due within 45 days and some are reported much later, so compare the trade date with the filing date.
  • Accounts vary. Reports can cover a spouse, a dependent child, or an account a financial adviser manages.
  • Counts are not conviction. Several lots of one stock in a single filing can be one decision, and a partial sale is counted as a sale.

Common questions

Which members of Congress have disclosed trades in Quest Diagnostics Inc.?

4 members filed 7 disclosed trades in Quest Diagnostics Inc. (DGX) in the filings collected here. The table lists them with dates and amount ranges.

Why do disclosed trades show a range instead of an exact amount?

The STOCK Act reporting forms use set dollar brackets, so filers choose a range such as $1,001 to $15,000 instead of stating the exact amount.

How current are these disclosures?

Members are supposed to report a trade within 45 days, but some filings arrive months or years late. Each line shows both the trade date and the filing date, and the data window is at the top of the page.

Does a trade by a member of Congress mean I should buy or sell?

No. Disclosures are a public record of what was filed. They do not say why a trade was made, and they arrive after the fact. MarketCast does not give investment advice.

More stocks in Congress filings

See all stocks in the Congress filings, or read how to read these disclosures.

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