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Disclosery

TANDEM CAPITAL MANAGEMENT CORP /ADV: MA position timeline

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

TANDEM CAPITAL MANAGEMENT CORP /ADV held 554 MA shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 554 shares
    Change vs previous 13F +554 shares

    0.12% of the 13F portfolio, value $284,534.

    13F-HR 0000873759-26-000003 filed by TANDEM CAPITAL MANAGEMENT CORP /ADV
    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 0 shares
    Change vs previous 13F -389 shares

    13F-HR 0000873759-26-000001 filed by TANDEM CAPITAL MANAGEMENT CORP /ADV
    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.

  3. period ended2025-09-30
    13F 389 shares
    Change vs previous 13F 0 shares

    0.1% of the 13F portfolio, value $221,267.

    13F-HR 0000873759-25-000006 filed by TANDEM CAPITAL MANAGEMENT CORP /ADV
    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 389 shares
    Change vs previous 13F 0 shares

    0.11% of the 13F portfolio, value $218,595.

    13F-HR 0000873759-25-000004 filed by TANDEM CAPITAL MANAGEMENT CORP /ADV
    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 389 shares
    Change vs previous 13F 0 shares

    0.12% of the 13F portfolio, value $213,219.

    13F-HR 0000873759-25-000002 filed by TANDEM CAPITAL MANAGEMENT CORP /ADV
    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 389 shares
    Change vs previous 13F not available

    0.11% of the 13F portfolio, value $204,836.

    13F-HR 0000873759-25-000001 filed by TANDEM CAPITAL MANAGEMENT CORP /ADV
    Filed (acceptance time not in the bulk data set), ingested

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