STOCK Act disclosures · QUEST DIAGNOSTICS INC

Which Members of Congress Traded Quest Diagnostics (DGX)?

13 members of Congress have disclosed 26 trades in Quest Diagnostics (DGX) stock between Dec 30, 2013 and Mar 30, 2026: 12 purchases and 14 full or partial sales. In the last 12 months, 2 members disclosed 3 purchases and 2 sales. The latest is Alan Armstrong’s purchase of $1k – $15k on Mar 30, 2026.

Of the 18 trades whose filing names the account owner, 3 werein a spouse’s account and 5 in a joint account.

House PTR filings as of Oct 20, 2026

Senate PTR filings as of Oct 21, 2026

Members
13
Disclosed trades
26
Purchases
12
Sales
14
Est. bought*
$121k
Est. sold*
$204k

Who are the members of Congress trading DGX?

13 members
MemberPartyStateChamberTradesBuysSellsEst. volume*Latest
Carol MillerRWV-01House422$81k2025-03-10
Earl BlumenauerDOR-03House422$32k2024-04-04
Julie JohnsonDTX-32House312$24k2025-11-03
Alan ArmstrongROKSenate220$16k2026-03-30
Julia LetlowRLA-05House211$16k2025-07-24
Kathy ManningDNC-06House211$16k2022-08-03
Dean PhillipsDMN-03House220$16k2020-01-17
Richard HannaRNY-22House202$16k2014-10-15
Gil CisnerosDCA-31House101$8k2025-01-24
Sara JacobsDCA-53House101$75k2021-04-09
Tom CarperDDESenate110$8k2020-04-02
Mike ConawayRTX-11House101$8k2016-09-12
Lois FrankelDFL-22House101$8k2016-06-20

*Estimated volume adds up the midpoint of each disclosed amount band (e.g. $8,000 for $1,001–$15,000). It is an estimate, not a reported figure. Chamber is the one each trade was filed with.

Are members of Congress buying or selling DGX?

Trade yearTradesBuysSellsMembers
20262201
20258264
20241011
20225323
20212112
20203303
20191101
20162022
20141011
20131011

By the year of the trade. Trades can be reported up to 45 days after they happen, so the latest months fill in as filings arrive.

How quickly were DGX trades reported?

Median days to report
41
90th percentile
279 days
Filed after 45 days
10 of 25
Longest gap
521 days

Days from each trade to the date its periodic transaction report was filed. The STOCK Act asks members to report a trade no later than 45 days after it happens; a later report is a matter of public record, not by itself evidence of wrongdoing. 1 trade could not be matched to a filing date and is not counted. Compare every member on the late-filing tracker.

What are the latest DGX trades by members of Congress?

Newest 26 of 26
Trade dateMemberTypeAmountOwnerFiledFiling
2026-03-30Alan Armstrong · R-OK · SenateBuy$1k – $15kSelf2026-07-21 · 113dPTR
2026-03-27Alan Armstrong · R-OK · SenateBuy$1k – $15kSelf2026-07-21 · 116dPTR
2025-11-03Julie Johnson · D-TX-32 · HouseSell$1k – $15kJoint2025-12-11 · 38dPTR
2025-10-30Julie Johnson · D-TX-32 · HouseBuy$1k – $15kJoint2026-08-05 · 279dPTR
2025-10-30Julie Johnson · D-TX-32 · HouseSell$1k – $15kJoint2026-08-05 · 279dPTR
2025-07-24Julia Letlow · R-LA-05 · HouseSell$1k – $15kSelf2026-01-13 · 173dPTR
2025-04-28Julia Letlow · R-LA-05 · HouseBuy$1k – $15kSelf2026-01-13 · 260dPTR
2025-03-10Carol Miller · R-WV-01 · HouseSell$15k – $50kSpouse2026-08-13 · 521dPTR
2025-03-10Carol Miller · R-WV-01 · HouseSell$1k – $15kSelf2025-04-11 · 32dPTR
2025-01-24Gil Cisneros · D-CA-31 · HousePartial sell$1k – $15kSelf2025-02-11 · 18dPTR
2024-04-04Earl Blumenauer · D-OR-03 · HouseSell$1k – $15kSpouse2024-05-04 · 30dPTR
2022-11-14Carol Miller · R-WV-01 · HouseBuy$1k – $15kSelf2022-12-13 · 29dPTR
2022-08-03Kathy Manning · D-NC-06 · HouseSell$1k – $15kJoint2022-09-14 · 42dPTR
2022-07-20Kathy Manning · D-NC-06 · HouseBuy$1k – $15kJoint2022-08-10 · 21dPTR
2022-03-14Earl Blumenauer · D-OR-03 · HouseSell$1k – $15kSelf2022-04-01 · 18dPTR
2022-02-24Earl Blumenauer · D-OR-03 · HouseBuyDue to miscommunication with my financial advisor, this stock was purchased in error. Once I was informed of the transaction, I sold the stock.$1k – $15kSelf2022-04-01 · 36dPTR
2021-07-28Carol Miller · R-WV-01 · HouseBuy$15k – $50kSpouse2022-09-02 · 401dPTR
2021-04-09Sara Jacobs · D-CA-53 · HouseSell$50k – $100kSelf2021-05-28 · 49dPTR
2020-04-02Tom Carper · D-DE · SenateBuy--$1k – $15k——PTR
2020-03-02Earl Blumenauer · D-OR-03 · HouseBuy$1k – $15k—2020-04-16 · 45d—
2020-01-17Dean Phillips · D-MN-03 · HouseBuy$1k – $15k—2020-02-07 · 21d—
2019-05-03Dean Phillips · D-MN-03 · HouseBuy$1k – $15k—2019-06-13 · 41d—
2016-09-12Mike Conaway · R-TX-11 · HouseSell$1k – $15k—2016-10-12 · 30d—
2016-06-20Lois Frankel · D-FL-22 · HouseSell$1k – $15k—2016-08-16 · 57d—
2014-10-15Richard Hanna · R-NY-22 · HouseSell$1k – $15k—2014-11-11 · 27d—
2013-12-30Richard Hanna · R-NY-22 · HouseSell$1k – $15k—2014-01-15 · 16d—

Days after the filing date count from the trade to the report; a highlighted figure is past the 45-day deadline.

What do these records cover?

House trades come from the official House Clerk filings from 2021 on; earlier House rows come from an archive of the same reports. Senate trades come from the Senate eFD filings (3 of the 26 trades here). Scanned paper filings are not itemised, so their trades are not counted.

These are trades reported on periodic transaction reports, not current holdings: a member who bought DGX may have sold it since, and a position bought before the records start, or held through a fund, does not show here. Amounts are disclosed as bands. This page is educational and is not a recommendation to buy or sell DGX.

DGX Congress trades: questions answered from the filings

Which members of Congress have traded Quest Diagnostics (DGX) stock?

13 members of Congress disclosed 26 trades in DGX between Dec 30, 2013 and Mar 30, 2026. The most active were Carol Miller (R-WV-01, 4 trades), Earl Blumenauer (D-OR-03, 4 trades) and Julie Johnson (D-TX-32, 3 trades).

Are members of Congress buying or selling DGX?

Across every disclosed trade, 12 were purchases and 14 were full or partial sales. In the 12 months since Oct 23, 2025, 2 members disclosed 3 purchases and 2 sales.

Who was the latest member of Congress to trade DGX?

Alan Armstrong (R-OK) disclosed a purchase of $1k – $15k dated Mar 30, 2026, reported on Jul 21, 2026 (113 days later). The earliest DGX trade in these records is Richard Hanna's sale on Dec 30, 2013.

How much DGX stock have members of Congress bought and sold?

Periodic transaction reports give an amount band, not an exact value. Taking the midpoint of each band, disclosed purchases add up to about $121k and sales to about $204k; this is an estimate. The largest single disclosed trade was Sara Jacobs's sale of $50k – $100k on Apr 9, 2021.

How long did members of Congress take to report DGX trades?

Of the 25 DGX trades matched to a filing date, the median was reported 41 days after the trade and 90% within 279 days. 10 were filed after the STOCK Act's 45-day deadline, the longest 521 days after the trade.

Do Democrats or Republicans trade DGX more?

8 Democrats disclosed 15 DGX trades and 5 Republicans disclosed 11 trades. Democrats account for more of the trades.

Source: periodic transaction reports filed under the STOCK Act with the House Clerk and the Senate. See Quest Diagnostics’s DGX stock page for insider, 13F and company data, the stocks Congress members are buying, the most active traders in Congress and how we collect this.