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Quantum Portfolio Management LLC: VST position timeline

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

Quantum Portfolio Management LLC held 5,655 VST 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 5,655 shares
    Change vs previous 13F -593 shares

    0.32% of the 13F portfolio, value $897,053.

    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 6,248 shares
    Change vs previous 13F -2,521 shares

    0.41% of the 13F portfolio, value $939,262.

    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 8,769 shares
    Change vs previous 13F -3,426 shares

    0.62% of the 13F portfolio, value $1,414,703.

    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 12,195 shares
    Change vs previous 13F +6,167 shares

    0.71% of the 13F portfolio, value $2,389,244.

    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 6,028 shares
    Change vs previous 13F -394 shares

    0.56% of the 13F portfolio, value $1,168,287.

    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 6,422 shares
    Change vs previous 13F not available

    0.38% of the 13F portfolio, value $754,200.

    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).