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Disclosery

BlackRock, Inc.: INSM position timeline

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

BlackRock, Inc. held 15,807,984 INSM 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 15,807,984 shares
    Change vs previous 13F -870,162 shares

    0.03% of the 13F portfolio, value $1,685,447,191.

    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 16,678,146 shares
    Change vs previous 13F +1,613,094 shares

    0.05% of the 13F portfolio, value $2,727,210,442.

    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 15,065,052 shares
    Change vs previous 13F +2,700,148 shares

    0.04% of the 13F portfolio, value $2,621,921,693.

    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 12,364,904 shares
    Change vs previous 13F +1,222,472 shares

    0.03% of the 13F portfolio, value $1,780,669,886.

    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 11,142,432 shares
    Change vs previous 13F -4,906,450 shares

    0.02% of the 13F portfolio, value $1,121,374,365.

    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 16,048,882 shares
    Change vs previous 13F +15,938 shares

    0.03% of the 13F portfolio, value $1,224,369,208.

    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 16,032,944 shares
    Change vs previous 13F +1,062,792 shares

    0.02% of the 13F portfolio, value $1,106,914,454.

    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 14,970,152 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $1,092,821,096.

    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).