Public ownership evidence

Quest Diagnostics Inc. (DGX) Ownership Disclosures

Read DGX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Quest Diagnostics Inc.: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-10-02
Trade date
2026-10-01
Reporting owners
WENTWORTH TIMOTHY C
Code
A
Shares
135
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001022079-26-000090
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read DGX fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read DGX fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-10-022026-10-01WENTWORTH TIMOTHY CA135Not reported
2026-09-042026-09-01Davis J. E.S10,000Not reported
2026-09-012026-08-28PREVOZNIK MICHAEL ES430Not reported
2026-09-012026-08-28PREVOZNIK MICHAEL ES6,237Not reported
2026-09-012026-08-28PREVOZNIK MICHAEL ES16,010Not reported
2026-07-302026-07-28DELANEY MARK ES1,600Not reported
2026-07-282026-07-22Gregg Vicky BA72Not reported
2026-07-282026-07-22SAMAD SAMA102Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-2918$3,815None
Cornerstone Financial Management LLC2026-03-312026-08-2918$3,528None
Cornerstone Financial Management LLC2025-12-312026-08-2915$2,603None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-291,404$237,631None
Advisors Asset Management, Inc.2021-12-312026-08-2867,140$11,615,891None
Advisors Asset Management, Inc.2022-12-312026-08-2851,489$8,054,939None
Advisors Asset Management, Inc.2020-06-302026-08-2843,442$4,950,650None
Advisors Asset Management, Inc.2022-06-302026-08-2862,111$8,260,000None
Advisors Asset Management, Inc.2021-09-302026-08-2862,208$9,039,000None
Corient Private Wealth LP2026-06-302026-08-2831,910$6,763,529None
Corient Private Wealth LP2026-06-302026-08-282,182$462,415None
Principia Wealth Advisory, LLC2026-06-302026-08-278$1,696None
Principia Wealth Advisory, LLC2026-03-312026-08-277$1,372None
Advisors Asset Management, Inc.2024-03-312026-08-2747,878$6,373,041None
Advisors Asset Management, Inc.2025-03-312026-08-2729,299$4,957,391None
Advisors Asset Management, Inc.2022-09-302026-08-2761,306$7,522,000None
Advisors Asset Management, Inc.2020-12-312026-08-2749,882$5,944,000None
Advisors Asset Management, Inc.2022-03-312026-08-2766,421$9,090,378None
Advisors Asset Management, Inc.2023-06-302026-08-2746,704$6,564,714None
Advisors Asset Management, Inc.2023-09-302026-08-2746,514$5,668,196None
Advisors Asset Management, Inc.2023-03-312026-08-2749,761$7,040,186None
Advisors Asset Management, Inc.2021-03-312026-08-2755,664$7,143,918None
Advisors Asset Management, Inc.2021-06-302026-08-2758,560$7,728,000None
Advisors Asset Management, Inc.2020-09-302026-08-2746,741$5,351,377None
Advisors Asset Management, Inc.2025-09-302026-08-2717,542$3,343,154None
Advisors Asset Management, Inc.2023-12-312026-08-2743,237$5,961,518None
Advisors Asset Management, Inc.2019-12-312026-08-2634,006$3,631,501None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2680,413$15,759,340None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2679,013$16,746,805None
Advisors Asset Management, Inc.2025-06-302026-08-2521,220$3,811,749None
Vancity Investment Management Ltd2026-06-302026-08-252,548$540,000None
CYBER HORNET ETFs LLC2026-06-302026-08-25304$64,433None
First Eagle Investment Management, LLC2026-06-302026-08-257,583$1,607,217None
First Eagle Investment Management, LLC2026-06-302026-08-2523$4,875None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25174,776$37,043,773None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2537,043,773$174,776,000None
Advisors Asset Management, Inc.2024-09-302026-08-2243,970$6,826,343None
Advisors Asset Management, Inc.2024-06-302026-08-2245,426$6,217,911None
Advisors Asset Management, Inc.2024-12-312026-08-2237,252$5,619,837None
Advisors Asset Management, Inc.2025-12-312026-08-2212,096$2,099,019None
Advisors Asset Management, Inc.2020-03-312026-08-2240,241$3,231,352None
Assenagon Asset Management S.A.2026-06-302026-08-2215,405$3,265,090None
Harvest Fund Management Co., Ltd2026-06-302026-08-21451$96,000None
GILL CAPITAL PARTNERS, LLC2026-06-302026-08-2150$10,598None
Wilson & Boucher Capital Management, LLC2026-06-302026-08-201,200$254,340None
Prosperitas Financial LLC2026-06-302026-08-201,583$335,517None
Archer Investment Corp2026-06-302026-08-20232$49,091None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20104,301$22,106,507None
Beacon Pointe Advisors, LLC2026-06-302026-08-193,169$670,911None
Copia Wealth Management2026-06-302026-08-192$424None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗B. Riley Wealth Advisors, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗

Recent Congressional disclosures

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Ro Khanna2026-10-082026-09-04purchase$1,001 - $15,000

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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