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Charles Schwab Trust Co: AMBA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Charles Schwab Trust Co on AMBA, newest first. How the timeline and the estimate are built.

Charles Schwab Trust Co held 379,551 AMBA 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 379,551 shares
    Change vs previous 13F +16,260 shares

    <0.01% of the 13F portfolio, value $32,565,476.

    13F-HR 0001752724-26-000057 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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 363,291 shares
    Change vs previous 13F -1,928 shares

    <0.01% of the 13F portfolio, value $18,700,405.

    13F-HR 0001752724-26-000037 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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 365,219 shares
    Change vs previous 13F +7,062 shares

    <0.01% of the 13F portfolio, value $25,872,114.

    13F-HR 0001752724-26-000003 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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 358,157 shares
    Change vs previous 13F +12,285 shares

    <0.01% of the 13F portfolio, value $29,555,078.

    13F-HR 0001752724-25-215019 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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 345,872 shares
    Change vs previous 13F +22,372 shares

    <0.01% of the 13F portfolio, value $22,850,034.

    13F-HR 0001752724-25-186359 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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/A 323,500 shares
    Change vs previous 13F -1,501 shares

    <0.01% of the 13F portfolio, value $16,281,779.

    13F-HR/A 0001752724-25-215014 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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 325,001 shares
    Change vs previous 13F +4,682 shares

    <0.01% of the 13F portfolio, value $23,640,573.

    13F-HR 0001752724-25-020817 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    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 320,319 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $18,067,566.

    13F-HR 0001752724-24-247180 filed by CHARLES SCHWAB INVESTMENT MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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