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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 2026-11-07T14:03:26.246Z

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2026-11-062026-11-03Ramachandran SubuA352Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-11-03 and its public availability date is 2026-11-06. Subtracting those calendar dates gives 3 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent Form 4 activity

Inspect all 19 displayed rows: Recent Form 4 activity

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2026-11-062026-11-03Ramachandran SubuA352Not reported
2026-11-062026-11-03Ramachandran SubuA1,386Not reported
2026-11-062026-11-03Doherty Catherine T.S2,907Not reported
2026-11-062026-11-03Doherty Catherine T.S2,877Not reported
2026-11-062026-11-03Doherty Catherine T.S3,004Not reported
2026-11-062026-11-03Doherty Catherine T.S2,358Not reported
2026-11-062026-11-03Doherty Catherine T.S1,151Not reported
2026-11-062026-11-03Doherty Catherine T.S5,990Not reported
2026-11-062026-11-03Doherty Catherine T.S3,818Not reported
2026-11-062026-11-03Doherty Catherine T.A4,827Not reported
2026-11-062026-11-03DELANEY MARK EA2,615Not reported
2026-10-282026-10-26PFEIFFER GARY MS1,203Not reported
2026-10-232026-10-21SAMAD SAMA90Not reported
2026-10-232026-10-21Gregg Vicky BA63Not reported
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

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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.

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.