Quest Diagnostics Incorporated Congressional Trading
According to U.S. congressional financial disclosures filed under the STOCK Act, members of Congress have reported 91 trades in Quest Diagnostics Incorporated (NYSE: DGX) since 2013, across 16 members, worth an estimated $2M in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts). 46 buys against 45 sells, a modestly buy-led skew, with Democratic members responsible for 45% of the trades and Republican members 55%. The most recent disclosure shown was filed March 2026, and Ro Khanna has filed the most DGX transactions among those shown, with 2. Other recent filers include Julie Johnson and Julia Letlow. One notable disclosed move was a purchase by Ro Khanna on January 29, 2026, up 6.7% since. These figures are drawn from public House and Senate periodic transaction reports and reflect what members were required to disclose, not the current market value of any position. For the full record, including the month-by-month buy and sell timeline, the party breakdown, top buyers and sellers, and every individual filing, see the Quest Diagnostics Incorporated (DGX) stock overview and the complete trade table below.
Data updated
Price & congressional trade timeline
Party breakdown
Quest Diagnostics congressional trading activity
| Politician | Published | Traded | Filed After | Type | Size | Return | |
|---|---|---|---|---|---|---|---|
 Ro Khanna House | Mar 9, 2026 | Feb 17, 2026 | 20 days | SELL |  $1,001 - $15,000 | -5.34% | |
Ro Khanna House | Feb 6, 2026 | Jan 29, 2026 | 8 days | BUY | $1,001 - $15,000 | +6.67% | |
 Julie Johnson House | Dec 11, 2025 | Nov 3, 2025 | 38 days | SELL | $1,001 - $15,000 | +9.26% | |
 Julia Letlow House | Jan 13, 2026 | Jul 24, 2025 | 173 days | SELL | $1,001 - $15,000 | +14.18% |
Quest Diagnostics (DGX) congressional trading FAQ
Can members of Congress legally trade Quest Diagnostics (DGX) stock?
Yes. Members of Congress are permitted to trade individual stocks, including Quest Diagnostics (DGX), but the STOCK Act of 2012 requires them to publicly disclose each transaction within 45 days. BullishWhales tracks those disclosures; it does not imply any trade was improper.
Are congressional Quest Diagnostics (DGX) trades public?
Yes. Every congressional trade in Quest Diagnostics (DGX) on this page comes from mandatory public STOCK Act disclosure filings, which are filed with a delay and may be revised.
How many times has Congress traded Quest Diagnostics (DGX)?
Members of Congress have disclosed 91 trades in Quest Diagnostics (DGX) worth $2M across 16 members, according to public STOCK Act filings.
Which members of Congress have traded Quest Diagnostics (DGX)?
Recent and active filers of Quest Diagnostics (DGX) disclosures include Ro Khanna, Julie Johnson, Julia Letlow. The full member-by-member trade list is on this page.
Do Democrats or Republicans trade Quest Diagnostics (DGX) more?
Across disclosed Quest Diagnostics (DGX) trades, 45% were by Democrats and 55% by Republicans, led by Republicans (55%).
What is the most recent congressional Quest Diagnostics (DGX) trade?
The most recent disclosed Quest Diagnostics (DGX) trade was a sale by Ro Khanna, filed Mar 8, 2026.
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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. The Tide Score and other figures are generated algorithmically from public filings and market data and describe historical activity, not a recommendation. Always do your own research and consult a licensed financial advisor before making investment decisions.