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OBERNDORF WILLIAM E: AMZN position timeline

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

OBERNDORF WILLIAM E held 36,031 AMZN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 36,031 shares
    Change vs previous 13F 0 shares

    15.61% of the 13F portfolio, value $8,587,629.

    13F-HR 0001193125-26-348152 filed by OBERNDORF WILLIAM E
    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 36,031 shares
    Change vs previous 13F -16,897 shares

    14.07% of the 13F portfolio, value $7,504,176.

    13F-HR 0001193125-26-222994 filed by OBERNDORF WILLIAM E
    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 52,928 shares
    Change vs previous 13F 0 shares

    15.47% of the 13F portfolio, value $12,216,841.

    13F-HR 0001193125-26-050038 filed by OBERNDORF WILLIAM E
    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 52,928 shares
    Change vs previous 13F 0 shares

    15.67% of the 13F portfolio, value $11,621,401.

    13F-HR 0001193125-25-279251 filed by OBERNDORF WILLIAM E
    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 52,928 shares
    Change vs previous 13F -18,821 shares

    12.83% of the 13F portfolio, value $11,611,874.

    13F-HR 0000950123-25-007482 filed by OBERNDORF WILLIAM E
    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 71,749 shares
    Change vs previous 13F 0 shares

    17.52% of the 13F portfolio, value $13,650,965.

    13F-HR 0000950123-25-005008 filed by OBERNDORF WILLIAM E
    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 71,749 shares
    Change vs previous 13F 0 shares

    26.28% of the 13F portfolio, value $15,741,013.

    13F-HR 0000950123-25-002836 filed by OBERNDORF WILLIAM E
    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 71,749 shares
    Change vs previous 13F not available

    17.72% of the 13F portfolio, value $13,368,991.

    13F-HR 0000950123-24-011025 filed by OBERNDORF WILLIAM E
    Filed (acceptance time not in the bulk data set), ingested

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