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Disclosery

Harbor Island Capital LLC: AMAT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Harbor Island Capital LLC on AMAT, newest first. How the timeline and the estimate are built.

Harbor Island Capital LLC held 92,498 AMAT shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 92,498 shares
    Change vs previous 13F -25,564 shares

    17.81% of the 13F portfolio, value $66,876,054.

    13F-HR 0001172661-26-002936 filed by Harbor Island Capital 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 118,062 shares
    Change vs previous 13F -11,465 shares

    14.99% of the 13F portfolio, value $40,352,411.

    13F-HR 0001172661-26-001706 filed by Harbor Island Capital 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 129,527 shares
    Change vs previous 13F -14,103 shares

    12.76% of the 13F portfolio, value $33,287,144.

    13F-HR 0001172661-26-000293 filed by Harbor Island Capital 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 143,630 shares
    Change vs previous 13F -21,890 shares

    12.59% of the 13F portfolio, value $29,406,806.

    13F-HR 0001172661-25-004359 filed by Harbor Island Capital 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 165,520 shares
    Change vs previous 13F -9,218 shares

    14.22% of the 13F portfolio, value $30,301,746.

    13F-HR 0001172661-25-002945 filed by Harbor Island Capital 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 174,738 shares
    Change vs previous 13F -2,671 shares

    12.56% of the 13F portfolio, value $25,357,979.

    13F-HR 0001172661-25-001627 filed by Harbor Island Capital 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 177,409 shares
    Change vs previous 13F 0 shares

    13.8% of the 13F portfolio, value $28,852,026.

    13F-HR 0001172661-25-000369 filed by Harbor Island Capital 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 177,409 shares
    Change vs previous 13F not available

    16.96% of the 13F portfolio, value $35,845,488.

    13F-HR 0001172661-24-004296 filed by Harbor Island Capital LLC
    Filed (acceptance time not in the bulk data set), ingested

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