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Disclosery

Summa Corp.: MRVL position timeline

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

Summa Corp. held 50,000 MRVL 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 50,000 shares
    Change vs previous 13F +8,000 shares

    4.67% of the 13F portfolio, value $14,894,500.

    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 42,000 shares
    Change vs previous 13F +2,000 shares

    1.72% of the 13F portfolio, value $4,160,100.

    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 40,000 shares
    Change vs previous 13F +2,000 shares

    1.46% of the 13F portfolio, value $3,399,200.

    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 38,000 shares
    Change vs previous 13F +5,400 shares

    1.4% of the 13F portfolio, value $3,194,660.

    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 32,600 shares
    Change vs previous 13F -10,363 shares

    1.31% of the 13F portfolio, value $2,523,240.

    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 42,963 shares
    Change vs previous 13F +563 shares

    1.53% of the 13F portfolio, value $2,645,232.

    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 42,400 shares
    Change vs previous 13F -969 shares

    2.3% of the 13F portfolio, value $4,683,080.

    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 43,369 shares
    Change vs previous 13F not available

    1.5% of the 13F portfolio, value $3,127,772.

    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).