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MATTERN CAPITAL MANAGEMENT, LLC: WM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MATTERN CAPITAL MANAGEMENT, LLC on WM, newest first. How the timeline and the estimate are built.

MATTERN CAPITAL MANAGEMENT, LLC held 44,162 WM shares at 2026-06-30 per its 13F-HR filed 2026-07-24.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 44,162 shares
    Change vs previous 13F +1,801 shares

    1.15% of the 13F portfolio, value $9,842,827.

    13F-HR 0001725547-26-000252 filed by MATTERN CAPITAL MANAGEMENT, 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 42,361 shares
    Change vs previous 13F +37,547 shares

    1.17% of the 13F portfolio, value $9,734,134.

    13F-HR 0001725547-26-000166 filed by MATTERN CAPITAL MANAGEMENT, 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 4,814 shares
    Change vs previous 13F +452 shares

    0.12% of the 13F portfolio, value $1,057,684.

    13F-HR 0001725547-26-000059 filed by MATTERN CAPITAL MANAGEMENT, 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 4,362 shares
    Change vs previous 13F +820 shares

    0.11% of the 13F portfolio, value $963,260.

    13F-HR 0001725547-25-004185 filed by MATTERN CAPITAL MANAGEMENT, 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 3,542 shares
    Change vs previous 13F +520 shares

    0.1% of the 13F portfolio, value $810,480.

    13F-HR 0001725547-25-003493 filed by MATTERN CAPITAL MANAGEMENT, LLC
    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 3,022 shares
    Change vs previous 13F +302 shares

    0.09% of the 13F portfolio, value $699,623.

    13F-HR 0001725547-25-001447 filed by MATTERN CAPITAL MANAGEMENT, LLC
    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 2,720 shares
    Change vs previous 13F +256 shares

    0.07% of the 13F portfolio, value $548,869.

    13F-HR 0001725547-25-000291 filed by MATTERN CAPITAL MANAGEMENT, LLC
    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 2,464 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $511,526.

    13F-HR 0001725547-24-005983 filed by MATTERN CAPITAL MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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