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Quantum Portfolio Management LLC: DGX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Quantum Portfolio Management LLC on DGX, newest first. How the timeline and the estimate are built.

Quantum Portfolio Management LLC held 7,451 DGX shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 7,451 shares
    Change vs previous 13F +14 shares

    0.57% of the 13F portfolio, value $1,579,239.

    13F-HR 0001420506-26-001701 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F/A 7,437 shares
    Change vs previous 13F -268 shares

    0.63% of the 13F portfolio, value $1,457,503.

    13F-HR/A 0001172661-26-001580 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 7,705 shares
    Change vs previous 13F -3,954 shares

    0.59% of the 13F portfolio, value $1,337,049.

    13F-HR 0001172661-26-000672 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 11,659 shares
    Change vs previous 13F +4,453 shares

    0.66% of the 13F portfolio, value $2,221,972.

    13F-HR 0001172661-25-004476 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 7,206 shares
    Change vs previous 13F -127 shares

    0.62% of the 13F portfolio, value $1,294,414.

    13F-HR 0001172661-25-003208 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 7,333 shares
    Change vs previous 13F +479 shares

    0.63% of the 13F portfolio, value $1,240,744.

    13F-HR 0001172661-25-001852 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 6,854 shares
    Change vs previous 13F +655 shares

    0.56% of the 13F portfolio, value $1,033,994.

    13F-HR 0001172661-25-000338 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 6,199 shares
    Change vs previous 13F not available

    0.52% of the 13F portfolio, value $962,395.

    13F-HR 0001172661-24-004357 filed by Quantum Portfolio Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).