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Disclosery

Barton Investment Management: AMZN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Barton Investment Management on AMZN, newest first. How the timeline and the estimate are built.

Barton Investment Management held 486,832 AMZN shares at 2026-06-30 per its 13F-HR filed 2026-07-20.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 486,832 shares
    Change vs previous 13F -10,406 shares

    15.72% of the 13F portfolio, value $116,031,539.

    13F-HR 0001387818-26-000003 filed by Barton Investment Management
    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 497,238 shares
    Change vs previous 13F -8,438 shares

    12.99% of the 13F portfolio, value $103,559,759.

    13F-HR 0001387818-26-000002 filed by Barton Investment Management
    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 505,676 shares
    Change vs previous 13F -7,011 shares

    12.58% of the 13F portfolio, value $116,720,135.

    13F-HR 0001387818-26-000001 filed by Barton Investment Management
    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 512,687 shares
    Change vs previous 13F -3,758 shares

    11.46% of the 13F portfolio, value $112,570,685.

    13F-HR 0001387818-25-000005 filed by Barton Investment Management
    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 516,445 shares
    Change vs previous 13F -3,452 shares

    11.74% of the 13F portfolio, value $113,302,869.

    13F-HR 0001387818-25-000004 filed by Barton Investment Management
    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 519,897 shares
    Change vs previous 13F -78,929 shares

    12.15% of the 13F portfolio, value $98,915,604.

    13F-HR 0001387818-25-000002 filed by Barton Investment Management
    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 598,826 shares
    Change vs previous 13F -5,290 shares

    13.93% of the 13F portfolio, value $131,376,437.

    13F-HR 0001387818-25-000001 filed by Barton Investment Management
    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 604,116 shares
    Change vs previous 13F not available

    14.08% of the 13F portfolio, value $112,564,935.

    13F-HR 0001387818-24-000005 filed by Barton Investment Management
    Filed (acceptance time not in the bulk data set), ingested

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