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Disclosery

Cornerstone Advisors, LLC: AMAT position timeline

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

Cornerstone Advisors, LLC held 21,733 AMAT shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 21,733 shares
    Change vs previous 13F +21,733 shares

    0.52% of the 13F portfolio, value $15,712,959.

    13F-HR 0001398344-26-013809 filed by Cornerstone Advisors, 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 0 shares
    Change vs previous 13F -36,300 shares

    13F-HR 0001398344-26-008799 filed by Cornerstone Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  3. period ended2025-12-31
    13F 36,300 shares
    Change vs previous 13F -49,400 shares

    0.31% of the 13F portfolio, value $9,328,737.

    13F-HR 0001398344-26-003109 filed by Cornerstone Advisors, 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 85,700 shares
    Change vs previous 13F 0 shares

    0.58% of the 13F portfolio, value $17,546,218.

    13F-HR 0001398344-25-020535 filed by Cornerstone Advisors, 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 85,700 shares
    Change vs previous 13F -1,900 shares

    0.54% of the 13F portfolio, value $15,689,099.

    13F-HR 0001398344-25-014846 filed by Cornerstone Advisors, 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 87,600 shares
    Change vs previous 13F +11,300 shares

    0.55% of the 13F portfolio, value $12,712,512.

    13F-HR 0001398344-25-009115 filed by Cornerstone Advisors, 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 76,300 shares
    Change vs previous 13F +24,600 shares

    0.49% of the 13F portfolio, value $12,408,669.

    13F-HR 0001398344-25-002231 filed by Cornerstone Advisors, 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 51,700 shares
    Change vs previous 13F not available

    0.41% of the 13F portfolio, value $10,445,985.

    13F-HR 0001398344-24-020355 filed by Cornerstone Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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