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Disclosery

Summa Corp.: COST position timeline

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

Summa Corp. held 300 COST 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 300 shares
    Change vs previous 13F -200 shares

    0.09% of the 13F portfolio, value $280,641.

    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 500 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $498,215.

    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 500 shares
    Change vs previous 13F -44 shares

    0.18% of the 13F portfolio, value $431,170.

    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 544 shares
    Change vs previous 13F +44 shares

    0.22% of the 13F portfolio, value $503,543.

    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 500 shares
    Change vs previous 13F +19 shares

    0.26% of the 13F portfolio, value $494,970.

    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 481 shares
    Change vs previous 13F -50 shares

    0.26% of the 13F portfolio, value $454,920.

    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 531 shares
    Change vs previous 13F -392 shares

    0.24% of the 13F portfolio, value $486,539.

    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 923 shares
    Change vs previous 13F not available

    0.39% of the 13F portfolio, value $818,257.

    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).