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Disclosery

Brooklyn Investment Group: CSTM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Brooklyn Investment Group on CSTM, newest first. How the timeline and the estimate are built.

Brooklyn Investment Group held 17,996 CSTM shares at 2026-03-31 per its 13F-HR filed 2026-04-29.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 17,996 shares
    Change vs previous 13F +1,453 shares

    0.01% of the 13F portfolio, value $442,342.

    13F-HR 0001795705-26-000002 filed by Brooklyn Investment Group
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-12-31
    13F 16,543 shares
    Change vs previous 13F +16,543 shares

    0.01% of the 13F portfolio, value $312,829.

    13F-HR 0001795705-26-000001 filed by Brooklyn Investment Group
    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/A 0 shares
    Change vs previous 13F -6 shares

    13F-HR/A 0001795705-25-000009 filed by Brooklyn Investment Group
    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.

  4. period ended2025-06-30
    13F/A 6 shares
    Change vs previous 13F -101 shares

    <0.01% of the 13F portfolio, value $80.

    13F-HR/A 0001795705-25-000005 filed by Brooklyn Investment Group
    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 107 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,080.

    13F-HR 0001795705-25-000003 filed by Brooklyn Investment Group
    Filed (acceptance time not in the bulk data set), ingested

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