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Disclosery

BlackRock, Inc.: ALRM position timeline

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

BlackRock, Inc. held 9,492,105 ALRM 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 9,492,105 shares
    Change vs previous 13F +355,310 shares

    0.01% of the 13F portfolio, value $443,471,147.

    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 9,136,795 shares
    Change vs previous 13F -114,498 shares

    0.01% of the 13F portfolio, value $394,618,176.

    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 9,251,293 shares
    Change vs previous 13F -192,127 shares

    0.01% of the 13F portfolio, value $472,000,970.

    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 9,443,420 shares
    Change vs previous 13F +42,379 shares

    0.01% of the 13F portfolio, value $501,256,734.

    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 9,401,041 shares
    Change vs previous 13F +278,531 shares

    0.01% of the 13F portfolio, value $531,816,890.

    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 9,122,510 shares
    Change vs previous 13F -198,817 shares

    0.01% of the 13F portfolio, value $507,667,682.

    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 9,321,327 shares
    Change vs previous 13F +394,420 shares

    0.01% of the 13F portfolio, value $566,736,683.

    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 8,926,907 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $488,034,027.

    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).