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Disclosery

BlackRock, Inc.: MNTN position timeline

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

BlackRock, Inc. held 4,259,878 MNTN 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 4,259,878 shares
    Change vs previous 13F +3,998,073 shares

    <0.01% of the 13F portfolio, value $39,190,877.

    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 261,805 shares
    Change vs previous 13F -2,083,573 shares

    <0.01% of the 13F portfolio, value $2,303,884.

    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 2,345,378 shares
    Change vs previous 13F +680,048 shares

    <0.01% of the 13F portfolio, value $28,003,814.

    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 1,665,330 shares
    Change vs previous 13F -226,268 shares

    <0.01% of the 13F portfolio, value $30,891,872.

    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 1,891,598 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $41,369,248.

    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).