Follow the people · Insider
Michael E. Prevoznik
Michael E. Prevoznik files insider transactions with the SEC as a svp & general counsel of Quest Diagnostics (DGX). We hold 4 disclosed purchases and sales filed since 17 February 2006, 1 of them in the last 90 days.
- Files forDGX
- Disclosed buys and sells4 in all, 1 in the last 90 days
- Last disclosure31 August 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 15 February 2006 — 28 August 2026SVP & General Counsel · Quest Diagnostics (DGX)299 Form 4 lines · source: SEC Form 4
- Filed 4 March 2008 — 4 March 2008Sr VP and General Counsel · Quest Diagnostics (dgx)2 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- exercised options over 22,677 shares of Quest DiagnosticsSEC Form 431 August 2026Common Stock · traded 28 August 2026 · filed 31 August 2026
- ▼ sold on the open market 16,010 shares of Quest DiagnosticsSEC Form 431 August 2026Common Stock · traded 28 August 2026 · filed 31 August 2026
- ▼ sold on the open market 6,237 shares of Quest DiagnosticsSEC Form 431 August 2026Common Stock · traded 28 August 2026 · filed 31 August 2026
- ▼ sold on the open market 430 shares of Quest DiagnosticsSEC Form 431 August 2026Common Stock · traded 28 August 2026 · filed 31 August 2026
- gave away 1,000 shares of Quest DiagnosticsSEC Form 431 August 2026Common Stock · traded 28 August 2026 · filed 31 August 2026
- exercised options over 22,677 shares of Quest Diagnostics (a derivative holding)SEC Form 431 August 2026Non-Qualifed Stock Option (right to buy) · traded 28 August 2026 · filed 31 August 2026
- was granted 7,232 shares of Quest DiagnosticsSEC Form 46 March 2026Common Stock · traded 4 March 2026 · filed 6 March 2026
- had shares withheld for tax on 3,354 shares of Quest DiagnosticsSEC Form 46 March 2026Common Stock · traded 4 March 2026 · filed 6 March 2026
- ▼ sold on the open market 3,878 shares of Quest DiagnosticsSEC Form 46 March 2026Common Stock · traded 5 March 2026 · filed 6 March 2026
- was granted 7,232 shares of Quest DiagnosticsSEC Form 46 March 2026Common Stock · traded 4 March 2026 · filed 6 March 2026
- had shares withheld for tax on 3,354 shares of Quest DiagnosticsSEC Form 46 March 2026Common Stock · traded 4 March 2026 · filed 6 March 2026
- ▼ sold on the open market 3,878 shares of Quest DiagnosticsSEC Form 46 March 2026Common Stock · traded 5 March 2026 · filed 6 March 2026
- had shares withheld for tax on 288 shares of Quest DiagnosticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 526 shares of Quest DiagnosticsSEC Form 44 March 2026Common Stock · traded 3 March 2026 · filed 4 March 2026
- had shares withheld for tax on 288 shares of Quest DiagnosticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 526 shares of Quest DiagnosticsSEC Form 44 March 2026Common Stock · traded 3 March 2026 · filed 4 March 2026
- was granted 2,013 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- had shares withheld for tax on 301 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- had shares withheld for tax on 347 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- was granted 9,289 shares of Quest Diagnostics (a derivative holding)SEC Form 420 February 2026Non-Qualifed Stock Option (right to buy) · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 1,111 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 19 February 2026 · filed 20 February 2026
- was granted 9,289 shares of Quest Diagnostics (a derivative holding)SEC Form 420 February 2026Non-Qualifed Stock Option (right to buy) · traded 18 February 2026 · filed 20 February 2026
- was granted 2,013 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- had shares withheld for tax on 301 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- had shares withheld for tax on 347 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 1,111 shares of Quest DiagnosticsSEC Form 420 February 2026Common Stock · traded 19 February 2026 · filed 20 February 2026
- exercised options over 227 shares of Quest Diagnostics (a derivative holding)SEC Form 430 September 2025Non-Qualifed Stock Option (right to buy) · traded 26 September 2025 · filed 30 September 2025
- exercised options over 227 shares of Quest DiagnosticsSEC Form 430 September 2025Common Stock · traded 26 September 2025 · filed 30 September 2025
- ▼ sold on the open market 83 shares of Quest DiagnosticsSEC Form 430 September 2025Common Stock · traded 26 September 2025 · filed 30 September 2025
- ▼ sold on the open market 144 shares of Quest DiagnosticsSEC Form 430 September 2025Common Stock · traded 26 September 2025 · filed 30 September 2025
- exercised options over 28,288 shares of Quest Diagnostics (a derivative holding)SEC Form 425 September 2025Non-Qualifed Stock Option (right to buy) · traded 23 September 2025 · filed 25 September 2025
- exercised options over 175 shares of Quest Diagnostics (a derivative holding)SEC Form 425 September 2025Non-Qualifed Stock Option (right to buy) · traded 24 September 2025 · filed 25 September 2025
- exercised options over 28,288 shares of Quest DiagnosticsSEC Form 425 September 2025Common Stock · traded 23 September 2025 · filed 25 September 2025
- ▼ sold on the open market 28,288 shares of Quest DiagnosticsSEC Form 425 September 2025Common Stock · traded 23 September 2025 · filed 25 September 2025
- exercised options over 175 shares of Quest DiagnosticsSEC Form 425 September 2025Common Stock · traded 24 September 2025 · filed 25 September 2025
- ▼ sold on the open market 175 shares of Quest DiagnosticsSEC Form 425 September 2025Common Stock · traded 24 September 2025 · filed 25 September 2025
- ▼ sold on the open market 4,643 shares of Quest DiagnosticsSEC Form 419 March 2025Common Stock · traded 17 March 2025 · filed 19 March 2025
- had shares withheld for tax on 322 shares of Quest DiagnosticsSEC Form 45 March 2025Common Stock · traded 3 March 2025 · filed 5 March 2025
- ▼ sold on the open market 592 shares of Quest DiagnosticsSEC Form 45 March 2025Common Stock · traded 4 March 2025 · filed 5 March 2025
- was granted 8,549 shares of Quest DiagnosticsSEC Form 45 March 2025Common Stock · traded 4 March 2025 · filed 5 March 2025
- had shares withheld for tax on 3,906 shares of Quest DiagnosticsSEC Form 45 March 2025Common Stock · traded 4 March 2025 · filed 5 March 2025
- had shares withheld for tax on 286 shares of Quest DiagnosticsSEC Form 428 February 2025Common Stock · traded 26 February 2025 · filed 28 February 2025
- ▼ sold on the open market 528 shares of Quest DiagnosticsSEC Form 428 February 2025Common Stock · traded 27 February 2025 · filed 28 February 2025
- had shares withheld for tax on 374 shares of Quest DiagnosticsSEC Form 421 February 2025Common Stock · traded 19 February 2025 · filed 21 February 2025
- ▼ sold on the open market 604 shares of Quest DiagnosticsSEC Form 421 February 2025Common Stock · traded 20 February 2025 · filed 21 February 2025
- was granted 8,991 shares of Quest Diagnostics (a derivative holding)SEC Form 414 February 2025Non-Qualifed Stock Option (right to buy) · traded 12 February 2025 · filed 14 February 2025
- was granted 2,345 shares of Quest DiagnosticsSEC Form 414 February 2025Common Stock · traded 12 February 2025 · filed 14 February 2025
- exercised options over 35,146 shares of Quest Diagnostics (a derivative holding)SEC Form 42 December 2024Non-Qualifed Stock Option (right to buy) · traded 29 November 2024 · filed 2 December 2024
- exercised options over 35,146 shares of Quest DiagnosticsSEC Form 42 December 2024Common Stock · traded 29 November 2024 · filed 2 December 2024
- ▼ sold on the open market 3,009 shares of Quest DiagnosticsSEC Form 42 December 2024Common Stock · traded 29 November 2024 · filed 2 December 2024
- ▼ sold on the open market 32,137 shares of Quest DiagnosticsSEC Form 42 December 2024Common Stock · traded 29 November 2024 · filed 2 December 2024
- exercised options over 32,551 shares of Quest Diagnostics (a derivative holding)SEC Form 43 September 2024Non-Qualifed Stock Option (right to buy) · traded 29 August 2024 · filed 3 September 2024
- exercised options over 32,551 shares of Quest DiagnosticsSEC Form 43 September 2024Common Stock · traded 29 August 2024 · filed 3 September 2024
- ▼ sold on the open market 32,551 shares of Quest DiagnosticsSEC Form 43 September 2024Common Stock · traded 29 August 2024 · filed 3 September 2024
- had shares withheld for tax on 405 shares of Quest DiagnosticsSEC Form 41 March 2024Common Stock · traded 28 February 2024 · filed 1 March 2024
- had shares withheld for tax on 456 shares of Quest DiagnosticsSEC Form 41 March 2024Common Stock · traded 28 February 2024 · filed 1 March 2024
- ▼ sold on the open market 5,611 shares of Quest DiagnosticsSEC Form 41 March 2024Common Stock · traded 29 February 2024 · filed 1 March 2024
- was granted 7,569 shares of Quest DiagnosticsSEC Form 427 February 2024Common Stock · traded 23 February 2024 · filed 27 February 2024
- had shares withheld for tax on 2,825 shares of Quest DiagnosticsSEC Form 427 February 2024Common Stock · traded 23 February 2024 · filed 27 February 2024
- had shares withheld for tax on 407 shares of Quest DiagnosticsSEC Form 423 February 2024Common Stock · traded 21 February 2024 · filed 23 February 2024
- ▼ sold on the open market 661 shares of Quest DiagnosticsSEC Form 423 February 2024Common Stock · traded 22 February 2024 · filed 23 February 2024
- was granted 12,231 shares of Quest Diagnostics (a derivative holding)SEC Form 416 February 2024Non-Qualifed Stock Option (right to buy) · traded 14 February 2024 · filed 16 February 2024
- was granted 2,935 shares of Quest DiagnosticsSEC Form 416 February 2024Common Stock · traded 14 February 2024 · filed 16 February 2024
- gave away 188 shares of Quest DiagnosticsSEC Form 419 January 2024Common Stock · traded 10 May 2023 · filed 19 January 2024
- was granted 8,595 shares of Quest DiagnosticsSEC Form 48 March 2023Common Stock · traded 6 March 2023 · filed 8 March 2023
- had shares withheld for tax on 3,841 shares of Quest DiagnosticsSEC Form 48 March 2023Common Stock · traded 6 March 2023 · filed 8 March 2023
- ▼ sold on the open market 4,754 shares of Quest DiagnosticsSEC Form 48 March 2023Common Stock · traded 7 March 2023 · filed 8 March 2023
- had shares withheld for tax on 320 shares of Quest DiagnosticsSEC Form 43 March 2023Common Stock · traded 1 March 2023 · filed 3 March 2023
- ▼ sold on the open market 593 shares of Quest DiagnosticsSEC Form 43 March 2023Common Stock · traded 2 March 2023 · filed 3 March 2023
- was granted 9,653 shares of Quest Diagnostics (a derivative holding)SEC Form 427 February 2023Non-Qualifed Stock Option (right to buy) · traded 23 February 2023 · filed 27 February 2023
- had shares withheld for tax on 811 shares of Quest DiagnosticsSEC Form 427 February 2023Common Stock · traded 23 February 2023 · filed 27 February 2023
- was granted 2,442 shares of Quest DiagnosticsSEC Form 427 February 2023Common Stock · traded 23 February 2023 · filed 27 February 2023
- ▼ sold on the open market 1,415 shares of Quest DiagnosticsSEC Form 427 February 2023Common Stock · traded 24 February 2023 · filed 27 February 2023
- exercised options over 50,604 shares of Quest Diagnostics (a derivative holding)SEC Form 419 May 2022Non-Qualifed Stock Option (right to buy) · traded 17 May 2022 · filed 19 May 2022
- exercised options over 50,604 shares of Quest DiagnosticsSEC Form 419 May 2022Common Stock · traded 17 May 2022 · filed 19 May 2022
- ▼ sold on the open market 50,604 shares of Quest DiagnosticsSEC Form 419 May 2022Common Stock · traded 17 May 2022 · filed 19 May 2022
- was granted 11,544 shares of Quest DiagnosticsSEC Form 49 March 2022Common Stock · traded 7 March 2022 · filed 9 March 2022
- had shares withheld for tax on 5,316 shares of Quest DiagnosticsSEC Form 49 March 2022Common Stock · traded 7 March 2022 · filed 9 March 2022
- ▼ sold on the open market 6,228 shares of Quest DiagnosticsSEC Form 49 March 2022Common Stock · traded 8 March 2022 · filed 9 March 2022
- ▼ sold on the open market 661 shares of Quest DiagnosticsSEC Form 42 March 2022Common Stock · traded 28 February 2022 · filed 2 March 2022
- was granted 13,301 shares of Quest Diagnostics (a derivative holding)SEC Form 428 February 2022Non-Qualifed Stock Option (right to buy) · traded 24 February 2022 · filed 28 February 2022
- ▼ sold on the open market 1,669 shares of Quest DiagnosticsSEC Form 428 February 2022Common Stock · traded 24 February 2022 · filed 28 February 2022
- was granted 2,741 shares of Quest DiagnosticsSEC Form 428 February 2022Common Stock · traded 24 February 2022 · filed 28 February 2022
- had shares withheld for tax on 933 shares of Quest DiagnosticsSEC Form 425 February 2022Common Stock · traded 23 February 2022 · filed 25 February 2022
- had shares withheld for tax on 406 shares of Quest DiagnosticsSEC Form 425 February 2022Common Stock · traded 23 February 2022 · filed 25 February 2022
- exercised options over 44,939 shares of Quest DiagnosticsSEC Form 47 May 2021Common Stock · traded 5 May 2021 · filed 7 May 2021
- ▼ sold on the open market 44,939 shares of Quest DiagnosticsSEC Form 47 May 2021Common Stock · traded 5 May 2021 · filed 7 May 2021
- exercised options over 44,939 shares of Quest Diagnostics (a derivative holding)SEC Form 47 May 2021Non-Qualifed Stock Option (right to buy) · traded 5 May 2021 · filed 7 May 2021
- was granted 9,791 shares of Quest DiagnosticsSEC Form 411 March 2021Common Stock · traded 9 March 2021 · filed 11 March 2021
- had shares withheld for tax on 4,217 shares of Quest DiagnosticsSEC Form 411 March 2021Common Stock · traded 9 March 2021 · filed 11 March 2021
- ▼ sold on the open market 5,574 shares of Quest DiagnosticsSEC Form 411 March 2021Common Stock · traded 10 March 2021 · filed 11 March 2021
- ▼ sold on the open market 801 shares of Quest DiagnosticsSEC Form 41 March 2021Common Stock · traded 25 February 2021 · filed 1 March 2021
- had shares withheld for tax on 693 shares of Quest DiagnosticsSEC Form 425 February 2021Common Stock · traded 23 February 2021 · filed 25 February 2021
- had shares withheld for tax on 455 shares of Quest DiagnosticsSEC Form 425 February 2021Common Stock · traded 24 February 2021 · filed 25 February 2021
- ▼ sold on the open market 438 shares of Quest DiagnosticsSEC Form 425 February 2021Common Stock · traded 24 February 2021 · filed 25 February 2021
- ▼ sold on the open market 750 shares of Quest DiagnosticsSEC Form 425 February 2021Common Stock · traded 24 February 2021 · filed 25 February 2021
- was granted 3,202 shares of Quest DiagnosticsSEC Form 419 February 2021Common Stock · traded 17 February 2021 · filed 19 February 2021
- was granted 17,958 shares of Quest Diagnostics (a derivative holding)SEC Form 419 February 2021Non-Qualifed Stock Option (right to buy) · traded 17 February 2021 · filed 19 February 2021
- exercised options over 35,591 shares of Quest Diagnostics (a derivative holding)SEC Form 415 October 2020Stock Options (Right to Buy) · traded 14 October 2020 · filed 15 October 2020
- exercised options over 35,591 shares of Quest DiagnosticsSEC Form 415 October 2020Common Stock · traded 14 October 2020 · filed 15 October 2020
- ▼ sold on the open market 35,591 shares of Quest DiagnosticsSEC Form 415 October 2020Common Stock · traded 14 October 2020 · filed 15 October 2020
- was granted 4,349 shares of Quest DiagnosticsSEC Form 412 March 2020Common Stock · traded 10 March 2020 · filed 12 March 2020
- had shares withheld for tax on 2,174 shares of Quest DiagnosticsSEC Form 412 March 2020Common Stock · traded 10 March 2020 · filed 12 March 2020
- ▼ sold on the open market 2,175 shares of Quest DiagnosticsSEC Form 412 March 2020Common Stock · traded 11 March 2020 · filed 12 March 2020
- ▼ sold on the open market 321 shares of Quest DiagnosticsSEC Form 428 February 2020Common Stock · traded 26 February 2020 · filed 28 February 2020
- had shares withheld for tax on 668 shares of Quest DiagnosticsSEC Form 428 February 2020Common Stock · traded 26 February 2020 · filed 28 February 2020
- ▼ sold on the open market 690 shares of Quest DiagnosticsSEC Form 428 February 2020Common Stock · traded 27 February 2020 · filed 28 February 2020
- had shares withheld for tax on 382 shares of Quest DiagnosticsSEC Form 426 February 2020Common Stock · traded 24 February 2020 · filed 26 February 2020
- had shares withheld for tax on 307 shares of Quest DiagnosticsSEC Form 426 February 2020Common Stock · traded 25 February 2020 · filed 26 February 2020
- was granted 22,677 shares of Quest Diagnostics (a derivative holding)SEC Form 420 February 2020Non-Qualifed Stock Option (right to buy) · traded 18 February 2020 · filed 20 February 2020
- was granted 3,477 shares of Quest DiagnosticsSEC Form 420 February 2020Common Stock · traded 18 February 2020 · filed 20 February 2020
- gave away 480 shares of Quest DiagnosticsSEC Form 410 February 2020Common Stock · traded 7 February 2020 · filed 10 February 2020
- exercised options over 11,863 shares of Quest Diagnostics (a derivative holding)SEC Form 44 December 2019Stock Options (Right to Buy) · traded 27 November 2019 · filed 4 December 2019
- exercised options over 32,693 shares of Quest Diagnostics (a derivative holding)SEC Form 44 December 2019Stock Options (Right to Buy) · traded 27 November 2019 · filed 4 December 2019
- exercised options over 11,863 shares of Quest DiagnosticsSEC Form 44 December 2019Common Stock · traded 27 November 2019 · filed 4 December 2019
- exercised options over 32,693 shares of Quest DiagnosticsSEC Form 44 December 2019Common Stock · traded 27 November 2019 · filed 4 December 2019
- ▼ sold on the open market 11,863 shares of Quest DiagnosticsSEC Form 44 December 2019Common Stock · traded 27 November 2019 · filed 4 December 2019
- ▼ sold on the open market 32,193 shares of Quest DiagnosticsSEC Form 44 December 2019Common Stock · traded 27 November 2019 · filed 4 December 2019
- ▼ sold on the open market 500 shares of Quest DiagnosticsSEC Form 44 December 2019Common Stock · traded 27 November 2019 · filed 4 December 2019
- was granted 6,647 shares of Quest DiagnosticsSEC Form 45 March 2019Common Stock · traded 1 March 2019 · filed 5 March 2019
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.