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Disclosery

Stolper Co: GAM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Stolper Co on GAM, newest first. How the timeline and the estimate are built.

Stolper Co held 6,307 GAM shares at 2026-06-30 per its 13F-HR filed 2026-07-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 6,307 shares
    Change vs previous 13F -35,854 shares

    0.1% of the 13F portfolio, value $402,000.

    13F-HR 0001808195-26-000003 filed by Stolper Co
    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 42,161 shares
    Change vs previous 13F +35,784 shares

    0.32% of the 13F portfolio, value $1,135,000.

    13F-HR 0001808195-26-000002 filed by Stolper Co
    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 6,377 shares
    Change vs previous 13F +534 shares

    0.11% of the 13F portfolio, value $375,000.

    13F-HR 0001808195-26-000001 filed by Stolper Co
    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/A 5,843 shares
    Change vs previous 13F 0 shares

    0.11% of the 13F portfolio, value $363,000.

    13F-HR/A 0001808195-25-000011 filed by Stolper Co
    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 5,843 shares
    Change vs previous 13F -36 shares

    0.11% of the 13F portfolio, value $327,000.

    13F-HR 0001808195-25-000008 filed by Stolper Co
    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 5,879 shares
    Change vs previous 13F 0 shares

    0.1% of the 13F portfolio, value $296,000.

    13F-HR 0001808195-25-000006 filed by Stolper Co
    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 5,879 shares
    Change vs previous 13F +368 shares

    0.1% of the 13F portfolio, value $300,000.

    13F-HR 0001808195-25-000001 filed by Stolper Co
    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 5,511 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $295,000.

    13F-HR 0001808195-24-000010 filed by Stolper Co
    Filed (acceptance time not in the bulk data set), ingested

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