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Disclosery

Cornerstone Advisory, LLC: GAB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Cornerstone Advisory, LLC on GAB, newest first. How the timeline and the estimate are built.

Cornerstone Advisory, LLC held 0 GAB shares at 2026-03-31 per its 13F-HR filed 2026-05-04.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -18,515 shares

    13F-HR 0001765380-26-000144 filed by Cornerstone Advisory, 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.

  2. period ended2025-12-31
    13F 18,515 shares
    Change vs previous 13F +250 shares

    0.01% of the 13F portfolio, value $114,238.

    13F-HR 0001765380-26-000050 filed by Cornerstone Advisory, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 18,265 shares
    Change vs previous 13F +244 shares

    0.01% of the 13F portfolio, value $111,232.

    13F-HR 0001765380-25-000443 filed by Cornerstone Advisory, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 18,021 shares
    Change vs previous 13F +258 shares

    0.01% of the 13F portfolio, value $104,879.

    13F-HR 0001765380-25-000271 filed by Cornerstone Advisory, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 17,763 shares
    Change vs previous 13F +256 shares

    0.01% of the 13F portfolio, value $98,583.

    13F-HR 0001765380-25-000178 filed by Cornerstone Advisory, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 17,507 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $97,165.

    13F-HR 0001765380-25-000128 filed by Cornerstone Advisory, LLC
    Filed (acceptance time not in the bulk data set), ingested

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