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TANDEM CAPITAL MANAGEMENT CORP /ADV: AMAT position timeline

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

TANDEM CAPITAL MANAGEMENT CORP /ADV held 15,601 AMAT 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 15,601 shares
    Change vs previous 13F -681 shares

    4.74% of the 13F portfolio, value $11,279,523.

    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 ended2026-03-31
    13F 16,282 shares
    Change vs previous 13F -959 shares

    2.79% of the 13F portfolio, value $5,565,025.

    13F-HR 0000873759-26-000002 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).

  3. period ended2025-12-31
    13F 17,241 shares
    Change vs previous 13F -881 shares

    2.02% of the 13F portfolio, value $4,430,765.

    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).

  4. period ended2025-09-30
    13F 18,122 shares
    Change vs previous 13F -200 shares

    1.73% of the 13F portfolio, value $3,710,298.

    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).

  5. period ended2025-06-30
    13F 18,322 shares
    Change vs previous 13F -36 shares

    1.7% of the 13F portfolio, value $3,354,209.

    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).

  6. period ended2025-03-31
    13F 18,358 shares
    Change vs previous 13F +20 shares

    1.49% of the 13F portfolio, value $2,664,113.

    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).

  7. period ended2024-12-31
    13F 18,338 shares
    Change vs previous 13F -190 shares

    1.6% of the 13F portfolio, value $2,982,309.

    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).

  8. period ended2024-09-30
    13F/A 18,528 shares
    Change vs previous 13F not available

    1.97% of the 13F portfolio, value $3,743,582.

    13F-HR/A 0000873759-24-000007 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).