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VANGUARD GROUP INC: INSM position timeline

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

VANGUARD GROUP INC held 22,242,827 INSM shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 22,242,827 shares
    Change vs previous 13F +288,256 shares

    0.03% of the 13F portfolio, value $2,371,530,214.

    13F-HR 0002100121-26-001018 filed by VANGUARD PORTFOLIO MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 1,401,552 shares
    • Vanguard Investments Australia, Ltd.: 106,644 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 416,108 shares
    • Vanguard Personalized Indexing Management, LLC: 11,342 shares
    • Vanguard Global Advisers, LLC: 108,325 shares
    • Vanguard National Trust Co: 29 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 9,790,865 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 10,407,962 shares

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

  2. period ended2026-03-31
    13F/A 21,954,571 shares
    Change vs previous 13F +866,803 shares

    0.05% of the 13F portfolio, value $3,590,011,451.

    13F-HR 0002100121-26-000861 filed by VANGUARD PORTFOLIO MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 1,354,516 shares
    • Vanguard Investments Australia, Ltd.: 105,805 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 360,075 shares
    • Vanguard Personalized Indexing Management, LLC: 11,210 shares
    • Vanguard Global Advisers, LLC: 109,003 shares
    • Vanguard National Trust Co: 29 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 9,642,131 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 10,371,802 shares

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

  3. period ended2025-12-31
    13F 21,087,768 shares
    Change vs previous 13F +1,142,396 shares

    0.05% of the 13F portfolio, value $3,670,115,143.

    13F-HR 0000102909-26-000031 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 21,076,344 shares
    • Vanguard Personalized Indexing Management, LLC: 11,424 shares

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

  4. period ended2025-09-30
    13F 19,945,372 shares
    Change vs previous 13F +2,292,799 shares

    0.04% of the 13F portfolio, value $2,872,333,023.

    13F-HR 0000102909-25-000353 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 19,935,820 shares
    • Vanguard Personalized Indexing Management, LLC: 9,552 shares

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

  5. period ended2025-06-30
    13F 17,652,573 shares
    Change vs previous 13F -623,747 shares

    0.03% of the 13F portfolio, value $1,776,554,947.

    13F-HR 0001752724-25-185843 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 17,644,492 shares
    • Vanguard Personalized Indexing Management, LLC: 8,081 shares

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

  6. period ended2025-03-31
    13F 18,276,320 shares
    Change vs previous 13F +50,843 shares

    0.03% of the 13F portfolio, value $1,394,300,453.

    13F-HR 0001752724-25-099331 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 18,268,122 shares
    • Vanguard Personalized Indexing Management, LLC: 8,198 shares

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

  7. period ended2024-12-31
    13F 18,225,477 shares
    Change vs previous 13F +1,075,158 shares

    0.02% of the 13F portfolio, value $1,258,286,932.

    13F-HR 0001752724-25-022205 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 18,218,973 shares
    • Vanguard Personalized Indexing Management, LLC: 6,504 shares

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

  8. period ended2024-09-30
    13F 17,150,319 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $1,251,973,287.

    13F-HR 0001752724-24-248565 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 17,143,177 shares
    • Vanguard Personalized Indexing Management, LLC: 7,142 shares

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