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Disclosery

Summa Corp.: TMO position timeline

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

Summa Corp. held 1,253 TMO 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 1,253 shares
    Change vs previous 13F +253 shares

    0.2% of the 13F portfolio, value $628,204.

    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 1,000 shares
    Change vs previous 13F 0 shares

    0.2% of the 13F portfolio, value $491,530.

    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 1,000 shares
    Change vs previous 13F 0 shares

    0.25% of the 13F portfolio, value $579,450.

    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 1,000 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $485,020.

    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 1,000 shares
    Change vs previous 13F -456 shares

    0.21% of the 13F portfolio, value $405,460.

    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 1,456 shares
    Change vs previous 13F 0 shares

    0.42% of the 13F portfolio, value $724,507.

    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 1,456 shares
    Change vs previous 13F +100 shares

    0.37% of the 13F portfolio, value $757,455.

    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 1,356 shares
    Change vs previous 13F not available

    0.4% of the 13F portfolio, value $838,871.

    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).