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Great Diamond Partners, LLC: AMT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Great Diamond Partners, LLC on AMT, newest first. How the timeline and the estimate are built.

Great Diamond Partners, LLC held 2,234 AMT shares at 2026-06-30 per its 13F-HR filed 2026-07-17.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,234 shares
    Change vs previous 13F -15 shares

    0.06% of the 13F portfolio, value $365,415.

    13F-HR 0001172661-26-002658 filed by Great Diamond Partners, LLC
    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 2,249 shares
    Change vs previous 13F -9 shares

    0.07% of the 13F portfolio, value $388,132.

    13F-HR 0001172661-26-001739 filed by Great Diamond Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 2,258 shares
    Change vs previous 13F -85 shares

    0.08% of the 13F portfolio, value $396,437.

    13F-HR 0001172661-26-000514 filed by Great Diamond Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 2,343 shares
    Change vs previous 13F -22 shares

    0.09% of the 13F portfolio, value $450,606.

    13F-HR 0001172661-25-004336 filed by Great Diamond Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 2,365 shares
    Change vs previous 13F not available

    0.11% of the 13F portfolio, value $522,712.

    13F-HR 0001172661-25-003158 filed by Great Diamond Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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