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Disclosery

Summa Corp.: T position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Summa Corp. on T, newest first. How the timeline and the estimate are built.

Summa Corp. held 16,000 T shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 16,000 shares
    Change vs previous 13F +10,000 shares

    0.1% of the 13F portfolio, value $331,200.

    13F-HR 0001214659-26-009701 filed by Summa Corp.
    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 6,000 shares
    Change vs previous 13F -10,000 shares

    0.19% of the 13F portfolio, value $463,840.

    13F-HR 0001214659-26-005326 filed by Summa Corp.
    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 16,000 shares
    Change vs previous 13F 0 shares

    0.17% of the 13F portfolio, value $397,440.

    13F-HR 0001214659-26-000679 filed by Summa Corp.
    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 16,000 shares
    Change vs previous 13F -600 shares

    0.2% of the 13F portfolio, value $451,840.

    13F-HR 0001214659-25-015365 filed by Summa Corp.
    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 16,600 shares
    Change vs previous 13F -5,000 shares

    0.25% of the 13F portfolio, value $480,404.

    13F-HR 0001214659-25-010906 filed by Summa Corp.
    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 21,600 shares
    Change vs previous 13F -400 shares

    0.35% of the 13F portfolio, value $610,848.

    13F-HR 0001214659-25-006133 filed by Summa Corp.
    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 22,000 shares
    Change vs previous 13F +100 shares

    0.25% of the 13F portfolio, value $500,940.

    13F-HR 0001214659-25-001191 filed by Summa Corp.
    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 21,900 shares
    Change vs previous 13F not available

    0.23% of the 13F portfolio, value $481,800.

    13F-HR 0001214659-24-017623 filed by Summa Corp.
    Filed (acceptance time not in the bulk data set), ingested

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