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Disclosery

Penbrook Management LLC: WMB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Penbrook Management LLC on WMB, newest first. How the timeline and the estimate are built.

Penbrook Management LLC held 19,130 WMB shares at 2026-06-30 per its 13F-HR filed 2026-07-23.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 19,130 shares
    Change vs previous 13F 0 shares

    0.91% of the 13F portfolio, value $1,422,124.

    13F-HR 0001381055-26-000003 filed by Penbrook 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 19,130 shares
    Change vs previous 13F 0 shares

    1.05% of the 13F portfolio, value $1,392,281.

    13F-HR 0001381055-26-000002 filed by Penbrook 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 19,130 shares
    Change vs previous 13F -150 shares

    0.79% of the 13F portfolio, value $1,149,904.

    13F-HR 0001381055-26-000001 filed by Penbrook 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 19,280 shares
    Change vs previous 13F -450 shares

    0.85% of the 13F portfolio, value $1,221,388.

    13F-HR 0001381055-25-000008 filed by Penbrook 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/A 19,730 shares
    Change vs previous 13F 0 shares

    0.93% of the 13F portfolio, value $1,239,241.

    13F-HR/A 0001381055-25-000006 filed by Penbrook 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 19,730 shares
    Change vs previous 13F -200 shares

    0.89% of the 13F portfolio, value $1,179,065.

    13F-HR 0001381055-25-000002 filed by Penbrook 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 19,930 shares
    Change vs previous 13F -100 shares

    0.74% of the 13F portfolio, value $1,078,612.

    13F-HR 0001381055-25-000001 filed by Penbrook 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 20,030 shares
    Change vs previous 13F not available

    0.59% of the 13F portfolio, value $914,370.

    13F-HR 0001381055-24-000005 filed by Penbrook Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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