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Disclosery

Baron Capital: ACGL position timeline

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

Baron Capital held 15,872,450 ACGL shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 15,872,450 shares
    Change vs previous 13F -837,309 shares

    2.31% of the 13F portfolio, value $1,540,579,997.

    13F-HR 0001017918-26-000067 filed by BAMCO INC /NY/
    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 16,709,759 shares
    Change vs previous 13F -1,277,746 shares

    4.84% of the 13F portfolio, value $1,603,969,766.

    13F-HR 0001017918-26-000043 filed by BAMCO INC /NY/
    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 17,987,505 shares
    Change vs previous 13F -772,150 shares

    4.67% of the 13F portfolio, value $1,725,361,480.

    13F-HR 0001017918-26-000015 filed by BAMCO INC /NY/
    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 18,759,655 shares
    Change vs previous 13F -967,575 shares

    4.51% of the 13F portfolio, value $1,702,063,498.

    13F-HR 0001017918-25-000059 filed by BAMCO INC /NY/
    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 19,727,230 shares
    Change vs previous 13F -239,522 shares

    4.87% of the 13F portfolio, value $1,796,164,291.

    13F-HR 0001017918-25-000041 filed by BAMCO INC /NY/
    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 19,966,752 shares
    Change vs previous 13F -495,972 shares

    5.64% of the 13F portfolio, value $1,920,402,207.

    13F-HR 0001017918-25-000031 filed by BAMCO INC /NY/
    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 20,462,724 shares
    Change vs previous 13F -262,633 shares

    4.88% of the 13F portfolio, value $1,889,732,561.

    13F-HR 0001017918-25-000019 filed by BAMCO INC /NY/
    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 20,725,357 shares
    Change vs previous 13F not available

    6.15% of the 13F portfolio, value $2,318,752,941.

    13F-HR 0001017918-24-000083 filed by BAMCO INC /NY/
    Filed (acceptance time not in the bulk data set), ingested

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