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Quantum Portfolio Management LLC: AMLP position timeline

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

Quantum Portfolio Management LLC held 21,109 AMLP 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 21,109 shares
    Change vs previous 13F +286 shares

    0.39% of the 13F portfolio, value $1,094,502.

    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 20,823 shares
    Change vs previous 13F -12,754 shares

    0.48% of the 13F portfolio, value $1,096,123.

    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 33,577 shares
    Change vs previous 13F -40,382 shares

    0.7% of the 13F portfolio, value $1,578,791.

    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 73,959 shares
    Change vs previous 13F +73,959 shares

    1.03% of the 13F portfolio, value $3,470,896.

    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 0 shares
    Change vs previous 13F -9,734 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  6. period ended2025-03-31
    13F 9,734 shares
    Change vs previous 13F 0 shares

    0.26% of the 13F portfolio, value $505,584.

    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 9,734 shares
    Change vs previous 13F -46 shares

    0.25% of the 13F portfolio, value $468,789.

    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 9,780 shares
    Change vs previous 13F not available

    0.25% of the 13F portfolio, value $460,931.

    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).