# Quest Diagnostics Inc: filings

DGX · NYSE · CIK 1022079 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/dgx.md) · [Financials](/companies/dgx/financials.md) · [Filings](/companies/dgx/filings.md) · [Insiders](/companies/dgx/insiders.md)

## Reports and events: 311 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 1142, 8-K 211, 144 61, 10-Q 54, SC 13G/A 45, 3 29, 11-K 26, DEFA14A 19, 10-K 18, DEF 14A 18, 424B2 17, UPLOAD 16, SC 13G 13, SC TO-T/A 13, FWP 12, CORRESP 11, S-8 10, S-8 POS 8, 8-K/A 7, ARS 7, 424B3 6, S-3ASR 6, CT ORDER 5, PRE 14A 5, 4/A 4, SCHEDULE 13G/A 4, NO ACT 3, POSASR 3, PX14A6G 3, SCHEDULE 13G 3, SC 13D/A 2, 3/A 1, 424B7 1, 5 1, SC 13D 1, SC TO-T 1, SD 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-23 | 16:18 ET | [10-Q](/filings/0001022079-26-000108.md) | Quarterly report, period 2026-09-30 | 0001022079-26-000108 |
| 2026-10-22 | 06:53 ET | [8-K](/filings/0000947871-26-000941.md) | 8.01 Other events | 0000947871-26-000941 |
| 2026-10-22 | 06:49 ET | [8-K](/filings/0001022079-26-000097.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-26-000097 |
| 2026-10-06 | 16:30 ET | [8-K](/filings/0000947871-26-000922.md) | 5.02 Departure or appointment of officers or directors | 0000947871-26-000922 |
| 2026-07-23 | 16:16 ET | [10-Q](/filings/0001022079-26-000070.md) | Quarterly report, period 2026-06-30 | 0001022079-26-000070 |
| 2026-07-23 | 06:46 ET | [8-K](/filings/0001022079-26-000067.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-26-000067 |
| 2026-05-21 | 16:48 ET | [8-K](/filings/0001022079-26-000052.md) | 5.07 Shareholder vote results | 0001022079-26-000052 |
| 2026-05-08 | 16:15 ET | [8-K](/filings/0001104659-26-057938.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001104659-26-057938 |
| 2026-05-01 | 16:15 ET | [8-K](/filings/0001104659-26-054141.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-054141 |
| 2026-04-22 | 16:12 ET | [10-Q](/filings/0001022079-26-000043.md) | Quarterly report, period 2026-03-31 | 0001022079-26-000043 |
| 2026-04-21 | 06:48 ET | [8-K](/filings/0001022079-26-000040.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-26-000040 |
| 2026-04-06 | 16:32 ET | [DEF 14A](/filings/0001140361-26-013356.md) | Proxy statement, period 2026-05-20 | 0001140361-26-013356 |
| 2026-03-12 | 16:30 ET | [8-K](/filings/0000947871-26-000244.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000947871-26-000244 |
| 2026-02-26 | 16:38 ET | [10-K](/filings/0001022079-26-000015.md) | Annual report, period 2025-12-31 | 0001022079-26-000015 |
| 2026-02-10 | 06:53 ET | [8-K](/filings/0001022079-26-000005.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001022079-26-000005 |
| 2026-01-12 | 16:37 ET | [8-K](/filings/0000947871-26-000025.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000947871-26-000025 |
| 2025-10-21 | 06:50 ET | [8-K](/filings/0001022079-25-000219.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-25-000219 |
| 2025-10-21 | 06:31 ET | [10-Q](/filings/0001022079-25-000218.md) | Quarterly report, period 2025-09-30 | 0001022079-25-000218 |
| 2025-07-23 | 16:25 ET | [10-Q](/filings/0001022079-25-000175.md) | Quarterly report, period 2025-06-30 | 0001022079-25-000175 |
| 2025-07-22 | 06:48 ET | [8-K](/filings/0001022079-25-000172.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-25-000172 |
| 2025-05-22 | 06:28 ET | [8-K](/filings/0001022079-25-000154.md) | 5.07 Shareholder vote results | 0001022079-25-000154 |
| 2025-04-23 | 16:21 ET | [10-Q](/filings/0001022079-25-000120.md) | Quarterly report, period 2025-03-31 | 0001022079-25-000120 |
| 2025-04-22 | 06:44 ET | [8-K](/filings/0001022079-25-000116.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-25-000116 |
| 2025-04-04 | 16:37 ET | [DEF 14A](/filings/0000930413-25-001171.md) | Proxy statement, period 2025-05-15 | 0000930413-25-001171 |
| 2025-03-19 | 16:32 ET | [8-K](/filings/0000947871-25-000321.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000947871-25-000321 |
| 2025-03-19 | 08:31 ET | [8-K](/filings/0000947871-25-000317.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000947871-25-000317 |
| 2025-02-20 | 16:30 ET | [10-K](/filings/0001022079-25-000044.md) | Annual report, period 2024-12-31 | 0001022079-25-000044 |
| 2025-01-30 | 06:47 ET | [8-K](/filings/0001022079-25-000008.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001022079-25-000008 |
| 2024-10-23 | 17:24 ET | [10-Q](/filings/0001022079-24-000190.md) | Quarterly report, period 2024-09-30 | 0001022079-24-000190 |
| 2024-10-22 | 06:48 ET | [8-K](/filings/0001022079-24-000187.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-24-000187 |
| 2024-08-29 | 16:41 ET | [8-K](/filings/0001022079-24-000173.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001022079-24-000173 |
| 2024-08-19 | 16:33 ET | [8-K](/filings/0001104659-24-090867.md) | 1.01 Entry into a material agreement; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-090867 |
| 2024-07-24 | 16:44 ET | [10-Q](/filings/0001022079-24-000156.md) | Quarterly report, period 2024-06-30 | 0001022079-24-000156 |
| 2024-07-23 | 06:46 ET | [8-K](/filings/0001022079-24-000153.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-24-000153 |
| 2024-07-03 | 09:18 ET | [8-K](/filings/0000947871-24-000587.md) | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000947871-24-000587 |
| 2024-05-21 | 16:29 ET | [8-K](/filings/0001022079-24-000138.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001022079-24-000138 |
| 2024-05-21 | 09:19 ET | [8-K](/filings/0001022079-24-000133.md) | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001022079-24-000133 |
| 2024-04-24 | 16:12 ET | [10-Q](/filings/0001022079-24-000099.md) | Quarterly report, period 2024-03-31 | 0001022079-24-000099 |
| 2024-04-23 | 06:47 ET | [8-K](/filings/0001022079-24-000096.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-24-000096 |
| 2024-04-05 | 16:33 ET | [DEF 14A](/filings/0000930413-24-001247.md) | Proxy statement, period 2024-05-16 | 0000930413-24-001247 |
| 2024-02-22 | 16:18 ET | [10-K](/filings/0001022079-24-000041.md) | Annual report, period 2023-12-31 | 0001022079-24-000041 |
| 2024-02-01 | 06:49 ET | [8-K](/filings/0001022079-24-000009.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001022079-24-000009 |
| 2023-11-01 | 16:25 ET | [8-K](/filings/0001022079-23-000172.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001022079-23-000172 |
| 2023-10-25 | 16:25 ET | [10-Q](/filings/0001022079-23-000157.md) | Quarterly report, period 2023-09-30 | 0001022079-23-000157 |
| 2023-10-24 | 06:47 ET | [8-K](/filings/0001022079-23-000154.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-23-000154 |
| 2023-09-29 | 16:55 ET | [8-K](/filings/0001022079-23-000147.md) | 5.02 Departure or appointment of officers or directors | 0001022079-23-000147 |
| 2023-07-27 | 16:14 ET | [10-Q](/filings/0001022079-23-000136.md) | Quarterly report, period 2023-06-30 | 0001022079-23-000136 |
| 2023-07-26 | 06:48 ET | [8-K](/filings/0001022079-23-000131.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001022079-23-000131 |
| 2023-05-19 | 16:33 ET | [8-K](/filings/0001022079-23-000104.md) | 5.07 Shareholder vote results | 0001022079-23-000104 |
| 2023-04-28 | 16:10 ET | [10-Q](/filings/0001022079-23-000093.md) | Quarterly report, period 2023-03-31 | 0001022079-23-000093 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 29, 2026, 04:31 ET. No prices; not investment advice.