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HARBOR ADVISORY CORP /MA/: COST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HARBOR ADVISORY CORP /MA/ on COST, newest first. How the timeline and the estimate are built.

HARBOR ADVISORY CORP /MA/ held 0 COST shares at 2025-12-31 per its 13F-HR filed 2026-02-06.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -227 shares

    13F-HR 0001765380-26-000072 filed by HARBOR ADVISORY CORP /MA/
    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 ended2025-09-30
    13F 227 shares
    Change vs previous 13F 0 shares

    0.06% of the 13F portfolio, value $210,118.

    13F-HR 0001765380-25-000479 filed by HARBOR ADVISORY CORP /MA/
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-06-30
    13F 227 shares
    Change vs previous 13F 0 shares

    0.07% of the 13F portfolio, value $224,716.

    13F-HR 0001765380-25-000360 filed by HARBOR ADVISORY CORP /MA/
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-03-31
    13F 227 shares
    Change vs previous 13F -46 shares

    0.07% of the 13F portfolio, value $214,692.

    13F-HR 0001765380-25-000220 filed by HARBOR ADVISORY CORP /MA/
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-12-31
    13F 273 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $250,142.

    13F-HR 0001100710-25-000001 filed by HARBOR ADVISORY CORP /MA/
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-09-30
    13F 273 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $242,020.

    13F-HR 0001100710-24-000004 filed by HARBOR ADVISORY CORP /MA/
    Filed (acceptance time not in the bulk data set), ingested

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