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Disclosery

FIRST MANHATTAN CO. LLC.: AMTM position timeline

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

FIRST MANHATTAN CO. LLC. held 14,242 AMTM 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 14,242 shares
    Change vs previous 13F +125 shares

    <0.01% of the 13F portfolio, value $294,382.

    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 14,117 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $368,171.

    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 14,117 shares
    Change vs previous 13F -83 shares

    <0.01% of the 13F portfolio, value $409,393.

    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 14,200 shares
    Change vs previous 13F -1,235 shares

    <0.01% of the 13F portfolio, value $340,090.

    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 15,435 shares
    Change vs previous 13F -574 shares

    <0.01% of the 13F portfolio, value $364,420.

    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 16,009 shares
    Change vs previous 13F -1,593 shares

    <0.01% of the 13F portfolio, value $291,364.

    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 17,602 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $370,170.

    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).