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Disclosery

BlackRock, Inc.: MARA position timeline

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

BlackRock, Inc. held 64,095,643 MARA 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 64,095,643 shares
    Change vs previous 13F +4,320,342 shares

    0.01% of the 13F portfolio, value $890,288,483.

    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 59,775,301 shares
    Change vs previous 13F +1,217,604 shares

    0.01% of the 13F portfolio, value $487,766,458.

    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 58,557,697 shares
    Change vs previous 13F +1,096,317 shares

    0.01% of the 13F portfolio, value $525,848,115.

    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 57,461,380 shares
    Change vs previous 13F +2,578,234 shares

    0.02% of the 13F portfolio, value $1,049,244,799.

    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 54,883,146 shares
    Change vs previous 13F +971,929 shares

    0.02% of the 13F portfolio, value $860,567,728.

    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 53,911,217 shares
    Change vs previous 13F +3,814,515 shares

    0.01% of the 13F portfolio, value $619,978,999.

    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 50,096,702 shares
    Change vs previous 13F +4,886,462 shares

    0.02% of the 13F portfolio, value $840,121,692.

    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 45,210,240 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $733,310,093.

    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).