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BlackRock, Inc.: MESO position timeline

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

BlackRock, Inc. held 664,280 MESO shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 664,280 shares
    Change vs previous 13F +33,425 shares

    <0.01% of the 13F portfolio, value $8,987,708.

    13F-HR 0002012383-26-003238 filed by BlackRock, 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 630,855 shares
    Change vs previous 13F -45,510 shares

    <0.01% of the 13F portfolio, value $9,702,550.

    13F-HR 0002012383-26-001841 filed by BlackRock, 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 676,365 shares
    Change vs previous 13F +135,948 shares

    <0.01% of the 13F portfolio, value $12,201,624.

    13F-HR 0002012383-26-000920 filed by BlackRock, 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 540,417 shares
    Change vs previous 13F -116,417 shares

    <0.01% of the 13F portfolio, value $8,706,118.

    13F-HR 0002012383-25-002949 filed by BlackRock, 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 656,834 shares
    Change vs previous 13F -58,094 shares

    <0.01% of the 13F portfolio, value $7,152,922.

    13F-HR 0001060021-25-000120 filed by BlackRock, 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 714,928 shares
    Change vs previous 13F -12,324 shares

    <0.01% of the 13F portfolio, value $8,922,302.

    13F-HR 0001576419-25-000869 filed by BlackRock, 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 727,252 shares
    Change vs previous 13F +645,773 shares

    <0.01% of the 13F portfolio, value $14,399,590.

    13F-HR 0001060021-25-000002 filed by BlackRock, 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 81,479 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $665,683.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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