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Disclosery

FIRST MANHATTAN CO. LLC.: AMT position timeline

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

FIRST MANHATTAN CO. LLC. held 21,826 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 21,826 shares
    Change vs previous 13F -173,622 shares

    0.01% of the 13F portfolio, value $3,608,879.

    13F-HR 0000728083-26-000007 filed by FIRST MANHATTAN CO. LLC.
    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 195,448 shares
    Change vs previous 13F -5,226 shares

    0.09% of the 13F portfolio, value $33,730,416.

    13F-HR 0000728083-26-000005 filed by FIRST MANHATTAN CO. LLC.
    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 200,674 shares
    Change vs previous 13F -8,148 shares

    0.09% of the 13F portfolio, value $35,573,480.

    13F-HR 0000728083-26-000002 filed by FIRST MANHATTAN CO. LLC.
    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 208,822 shares
    Change vs previous 13F -12,046 shares

    0.11% of the 13F portfolio, value $40,515,644.

    13F-HR 0000728083-25-000015 filed by FIRST MANHATTAN CO. LLC.
    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 220,868 shares
    Change vs previous 13F +1,354 shares

    0.14% of the 13F portfolio, value $49,190,293.

    13F-HR 0000728083-25-000010 filed by FIRST MANHATTAN CO. LLC.
    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 219,514 shares
    Change vs previous 13F +9,246 shares

    0.14% of the 13F portfolio, value $47,766,246.

    13F-HR 0001750312-25-000007 filed by FIRST MANHATTAN CO. LLC.
    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 210,268 shares
    Change vs previous 13F +17,524 shares

    0.12% of the 13F portfolio, value $41,874,704.

    13F-HR 0000728083-25-000003 filed by FIRST MANHATTAN CO. LLC.
    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 192,744 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $44,824,544.

    13F-HR 0001172661-24-004939 filed by FIRST MANHATTAN CO. LLC.
    Filed (acceptance time not in the bulk data set), ingested

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