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Congress Stock Tracker

Tracking congressional stock trades from public STOCK Act Periodic Transaction Reports (PTRs) filed by members of the US House and Senate.

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© 2026 Congress Stock Tracker. Data from public STOCK Act filings.For informational purposes only. Not financial advice.
Stocks
Quest Diagnostics Incorporated

Quest Diagnostics IncorporatedDGX

NYSEHealthcareDiagnostics & Research$199.70-0.59%

A leading provider of diagnostic testing, information, and services, Quest Diagnostics operates one of the largest clinical laboratories in the U.S. Investors monitor the company for its role in preventive care, chronic disease management, and COVID-19 testing capabilities. The firm's scale and data analytics offerings position it as a key player in lab-based diagnostics.

Market Cap: $22.2B52W Range: $157.20 – $213.50

Congressional Interest in Quest Diagnostics Incorporated (DGX)

5 members of Congress have disclosed 10 trades in Quest Diagnostics Incorporated (DGX), a Healthcare company. The buy/sell breakdown shows 8 purchases versus 2 sales, indicating net buying interest from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
10
Unique Politicians
5
Buys
8
Sells
2

Who in Congress Is Trading DGX?

DatePoliticianTypeAmountSecurity
2010-08-11David P. Roebuy$3,036.23Stock
2010-08-11David P. Roebuy$15,231.74Stock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
2010-08-11David P. Roebuy$4,301.32Stock
2010-08-11David P. Roebuy$15,231.74Stock
2010-01-07JUDY BIGGERTbuy$1K – $15KStock
2009-01-06MICHAEL T. MCCAULbuy$1K – $15KStock
2009-01-06MICHAEL T. MCCAULbuy$1K – $15KStock
2008-02-01Bill Cassidysell$2,506.50Stock
2007-02-08JUDY BIGGERTsell$1K – $15KStock
2006-02-28Alan Graysonbuy$15K – $50KStock
David P. Roebuy
2010-08-11$3,036.23
Stock
David P. Roebuy
2010-08-11$15,231.74
Stock
David P. Roebuy
2010-08-11$4,301.32
Stock
David P. Roebuy
2010-08-11$15,231.74
Stock
JUDY BIGGERTbuy
2010-01-07$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2009-01-06$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2009-01-06$1K – $15K
Stock
Bill Cassidysell
2008-02-01$2,506.50
Stock
JUDY BIGGERTsell
2007-02-08$1K – $15K
Stock
Alan Graysonbuy
2006-02-28$15K – $50K
Stock
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