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Disclosery

Kidder Stephen W: ATR position timeline

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

Kidder Stephen W held 56,968 ATR 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 56,968 shares
    Change vs previous 13F -4,055 shares

    1.8% of the 13F portfolio, value $7,132,394.

    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 61,023 shares
    Change vs previous 13F -1,500 shares

    2.26% of the 13F portfolio, value $7,690,119.

    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 62,523 shares
    Change vs previous 13F -170 shares

    2.15% of the 13F portfolio, value $7,625,305.

    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 62,693 shares
    Change vs previous 13F -406 shares

    2.4% of the 13F portfolio, value $8,379,547.

    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 63,099 shares
    Change vs previous 13F -549 shares

    2.97% of the 13F portfolio, value $9,870,576.

    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).

  6. period ended2025-03-31
    13F 63,648 shares
    Change vs previous 13F -389 shares

    2.94% of the 13F portfolio, value $9,444,092.

    13F-HR 0001215208-25-000002 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).

  7. period ended2024-12-31
    13F 64,037 shares
    Change vs previous 13F -593 shares

    3.03% of the 13F portfolio, value $10,060,213.

    13F-HR 0001494234-25-000006 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).

  8. period ended2024-09-30
    13F 64,630 shares
    Change vs previous 13F not available

    3.06% of the 13F portfolio, value $10,353,079.

    13F-HR 0001053914-24-000006 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).