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Disclosery

SRB CORP: AMZN position timeline

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

SRB CORP held 450,434 AMZN 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 450,434 shares
    Change vs previous 13F 0 shares

    5.77% of the 13F portfolio, value $107,356,439.

    13F-HR 0000904454-26-000456 filed by SRB CORP
    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 450,434 shares
    Change vs previous 13F -10,016 shares

    5.76% of the 13F portfolio, value $93,811,889.

    13F-HR 0000904454-26-000289 filed by SRB CORP
    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 460,450 shares
    Change vs previous 13F 0 shares

    5.83% of the 13F portfolio, value $106,281,069.

    13F-HR 0000904454-26-000102 filed by SRB CORP
    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 460,450 shares
    Change vs previous 13F -29,822 shares

    5.79% of the 13F portfolio, value $101,101,006.

    13F-HR 0000904454-25-000595 filed by SRB CORP
    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 490,272 shares
    Change vs previous 13F 0 shares

    6.45% of the 13F portfolio, value $107,560,774.

    13F-HR 0000904454-25-000420 filed by SRB CORP
    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 490,272 shares
    Change vs previous 13F 0 shares

    6.08% of the 13F portfolio, value $93,279,151.

    13F-HR 0000904454-25-000270 filed by SRB CORP
    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 490,272 shares
    Change vs previous 13F 0 shares

    6.17% of the 13F portfolio, value $107,560,774.

    13F-HR 0000904454-25-000128 filed by SRB CORP
    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 490,272 shares
    Change vs previous 13F not available

    5.12% of the 13F portfolio, value $91,352,382.

    13F-HR 0000904454-24-000609 filed by SRB CORP
    Filed (acceptance time not in the bulk data set), ingested

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