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VANGUARD GROUP INC: ACM position timeline

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

VANGUARD GROUP INC held 12,305,811 ACM 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 12,305,811 shares
    Change vs previous 13F +21,698 shares

    0.01% of the 13F portfolio, value $858,945,609.

    13F-HR 0002100119-26-001527 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 812,607 shares
    • Vanguard Investments Australia, Ltd.: 32,059 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 107,096 shares
    • Vanguard Personalized Indexing Management, LLC: 10,495 shares
    • Vanguard Global Advisers, LLC: 48,875 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 5,808,042 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 5,486,637 shares

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

  2. period ended2026-03-31
    13F/A 12,284,113 shares
    Change vs previous 13F -14,213 shares

    0.02% of the 13F portfolio, value $1,041,938,465.

    13F-HR/A 0002100119-26-001311 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 802,679 shares
    • Vanguard Investments Australia, Ltd.: 61,094 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 49,664 shares
    • Vanguard Personalized Indexing Management, LLC: 12,091 shares
    • Vanguard Global Advisers, LLC: 51,940 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 5,800,366 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 5,506,279 shares

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

  3. period ended2025-12-31
    13F 12,298,326 shares
    Change vs previous 13F -231,968 shares

    0.02% of the 13F portfolio, value $1,172,399,418.

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

    • VANGUARD GROUP INC: 12,285,802 shares
    • Vanguard Personalized Indexing Management, LLC: 12,524 shares

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

  4. period ended2025-09-30
    13F 12,530,294 shares
    Change vs previous 13F -93,063 shares

    0.02% of the 13F portfolio, value $1,634,827,458.

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

    • VANGUARD GROUP INC: 12,517,170 shares
    • Vanguard Personalized Indexing Management, LLC: 13,124 shares

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

  5. period ended2025-06-30
    13F 12,623,357 shares
    Change vs previous 13F -112,877 shares

    0.02% of the 13F portfolio, value $1,424,672,071.

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

    • VANGUARD GROUP INC: 12,610,310 shares
    • Vanguard Personalized Indexing Management, LLC: 13,047 shares

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

  6. period ended2025-03-31
    13F 12,736,234 shares
    Change vs previous 13F -81,375 shares

    0.02% of the 13F portfolio, value $1,181,030,978.

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

    • VANGUARD GROUP INC: 12,724,801 shares
    • Vanguard Personalized Indexing Management, LLC: 11,433 shares

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

  7. period ended2024-12-31
    13F 12,817,609 shares
    Change vs previous 13F -89,904 shares

    0.02% of the 13F portfolio, value $1,369,176,995.

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

    • VANGUARD GROUP INC: 12,804,619 shares
    • Vanguard Personalized Indexing Management, LLC: 12,990 shares

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

  8. period ended2024-09-30
    13F 12,907,513 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $1,332,958,868.

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

    • VANGUARD GROUP INC: 12,895,120 shares
    • Vanguard Personalized Indexing Management, LLC: 12,393 shares

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