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Northstar Group, Inc.: ACGL position timeline

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

Northstar Group, Inc. held 135,252 ACGL shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 135,252 shares
    Change vs previous 13F +4,073 shares

    1.69% of the 13F portfolio, value $13,127,588.

    13F-HR 0001631408-26-000003 filed by Northstar Group, Inc.
    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 131,179 shares
    Change vs previous 13F +986 shares

    1.78% of the 13F portfolio, value $12,591,900.

    13F-HR 0001631408-26-000002 filed by Northstar Group, Inc.
    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 130,193 shares
    Change vs previous 13F +4,009 shares

    1.7% of the 13F portfolio, value $12,488,189.

    13F-HR 0001631408-26-000001 filed by Northstar Group, Inc.
    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 126,184 shares
    Change vs previous 13F +1,816 shares

    1.67% of the 13F portfolio, value $11,448,752.

    13F-HR 0001631408-25-000002 filed by Northstar Group, Inc.
    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 124,368 shares
    Change vs previous 13F +753 shares

    1.75% of the 13F portfolio, value $11,323,694.

    13F-HR 0001085146-25-003976 filed by Northstar Group, Inc.
    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 123,615 shares
    Change vs previous 13F +1,418 shares

    1.93% of the 13F portfolio, value $11,889,277.

    13F-HR 0001085146-25-002183 filed by Northstar Group, Inc.
    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 122,197 shares
    Change vs previous 13F +5,947 shares

    1.89% of the 13F portfolio, value $11,284,880.

    13F-HR 0001085146-25-000528 filed by Northstar Group, Inc.
    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 116,250 shares
    Change vs previous 13F not available

    2.27% of the 13F portfolio, value $13,006,050.

    13F-HR 0001085146-24-004715 filed by Northstar Group, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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