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Charles Schwab Trust Co: ZBIO position timeline

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

Charles Schwab Trust Co held 302,085 ZBIO 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 302,085 shares
    Change vs previous 13F +77,683 shares

    <0.01% of the 13F portfolio, value $7,666,917.

    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 224,402 shares
    Change vs previous 13F +11,209 shares

    <0.01% of the 13F portfolio, value $4,387,059.

    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 213,193 shares
    Change vs previous 13F +34,797 shares

    <0.01% of the 13F portfolio, value $7,741,038.

    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 178,396 shares
    Change vs previous 13F +56,186 shares

    <0.01% of the 13F portfolio, value $3,960,391.

    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 122,210 shares
    Change vs previous 13F +6,070 shares

    <0.01% of the 13F portfolio, value $1,184,215.

    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 116,140 shares
    Change vs previous 13F -2,520 shares

    <0.01% of the 13F portfolio, value $917,506.

    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 118,660 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $971,825.

    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).