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Disclosery

Baron Capital: AMT position timeline

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

Baron Capital held 0 AMT 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 0 shares
    Change vs previous 13F -23,709 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2026-03-31
    13F 23,709 shares
    Change vs previous 13F -244,104 shares

    0.01% of the 13F portfolio, value $4,091,699.

    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 267,813 shares
    Change vs previous 13F -266,240 shares

    0.13% of the 13F portfolio, value $47,019,928.

    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 534,053 shares
    Change vs previous 13F -33,714 shares

    0.27% of the 13F portfolio, value $102,709,073.

    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 567,767 shares
    Change vs previous 13F -131,909 shares

    0.34% of the 13F portfolio, value $125,487,862.

    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 699,676 shares
    Change vs previous 13F +699,676 shares

    0.45% of the 13F portfolio, value $152,249,498.

    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 0 shares
    Change vs previous 13F -192,717 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  8. period ended2024-09-30
    13F 192,717 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $44,818,266.

    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).