Skip to content
Disclosery

SEI INVESTMENTS CO: AMAT position timeline

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

SEI INVESTMENTS CO held 505,531 AMAT shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 505,531 shares
    Change vs previous 13F -149,360 shares

    0.32% of the 13F portfolio, value $365,504,535.

    13F-HR 0002048251-26-006553 filed by SEI INVESTMENTS CO
    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 654,891 shares
    Change vs previous 13F +164,436 shares

    0.21% of the 13F portfolio, value $223,836,826.

    13F-HR 0002048251-26-003739 filed by SEI INVESTMENTS CO
    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 490,455 shares
    Change vs previous 13F +50,281 shares

    0.12% of the 13F portfolio, value $126,038,657.

    13F-HR 0000350894-26-000005 filed by SEI INVESTMENTS CO
    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 440,174 shares
    Change vs previous 13F +17,480 shares

    0.1% of the 13F portfolio, value $90,117,640.

    13F-HR 0002048251-25-002343 filed by SEI INVESTMENTS CO
    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 422,694 shares
    Change vs previous 13F +116,588 shares

    0.09% of the 13F portfolio, value $77,383,479.

    13F-HR 0001041062-25-000162 filed by SEI INVESTMENTS CO
    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/A 306,106 shares
    Change vs previous 13F +38,302 shares

    0.06% of the 13F portfolio, value $44,428,143.

    13F-HR/A 0001041062-25-000106 filed by SEI INVESTMENTS CO
    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 267,804 shares
    Change vs previous 13F -95,238 shares

    0.06% of the 13F portfolio, value $43,553,793.

    13F-HR 0001041062-25-000019 filed by SEI INVESTMENTS CO
    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 363,042 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $73,351,334.

    13F-HR 0001041062-24-000165 filed by SEI INVESTMENTS CO
    Filed (acceptance time not in the bulk data set), ingested

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