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Disclosery

Kidder Stephen W: AMAT position timeline

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

Kidder Stephen W held 22,000 AMAT shares at 2026-06-30 per its 13F-HR filed 2026-08-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 22,000 shares
    Change vs previous 13F -265 shares

    4.02% of the 13F portfolio, value $15,906,000.

    13F-HR 0001314377-26-000008 filed by Kidder Stephen W
    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 22,265 shares
    Change vs previous 13F +2,190 shares

    2.24% of the 13F portfolio, value $7,609,954.

    13F-HR 0001314377-26-000007 filed by Kidder Stephen W
    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 20,075 shares
    Change vs previous 13F +8,068 shares

    1.45% of the 13F portfolio, value $5,159,074.

    13F-HR 0001314377-26-000001 filed by Kidder Stephen W
    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 12,007 shares
    Change vs previous 13F +7,957 shares

    0.7% of the 13F portfolio, value $2,458,312.

    13F-HR 0001314377-25-000003 filed by Kidder Stephen W
    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 4,050 shares
    Change vs previous 13F not available

    0.22% of the 13F portfolio, value $741,433.

    13F-HR 0001314376-25-000004 filed by Kidder Stephen W
    Filed (acceptance time not in the bulk data set), ingested

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