Skip to content
Disclosery

BROWN BROTHERS HARRIMAN & CO: AMT position timeline

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

BROWN BROTHERS HARRIMAN & CO held 18,702 AMT shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 18,702 shares
    Change vs previous 13F +1,142 shares

    0.01% of the 13F portfolio, value $3,059,086.

    13F-HR 0001104659-26-094581 filed by BROWN BROTHERS HARRIMAN & CO
    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 17,560 shares
    Change vs previous 13F +2,667 shares

    0.02% of the 13F portfolio, value $3,030,505.

    13F-HR 0001104659-26-060871 filed by BROWN BROTHERS HARRIMAN & CO
    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 14,893 shares
    Change vs previous 13F -5,311 shares

    0.01% of the 13F portfolio, value $2,614,764.

    13F-HR 0001104659-26-014005 filed by BROWN BROTHERS HARRIMAN & CO
    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 20,204 shares
    Change vs previous 13F -2,239 shares

    0.02% of the 13F portfolio, value $3,885,633.

    13F-HR 0001104659-25-111114 filed by BROWN BROTHERS HARRIMAN & CO
    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 22,443 shares
    Change vs previous 13F -151 shares

    0.03% of the 13F portfolio, value $4,960,352.

    13F-HR 0001104659-25-076057 filed by BROWN BROTHERS HARRIMAN & CO
    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 22,594 shares
    Change vs previous 13F -4,221 shares

    0.03% of the 13F portfolio, value $4,916,454.

    13F-HR 0001104659-25-048255 filed by BROWN BROTHERS HARRIMAN & CO
    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 26,815 shares
    Change vs previous 13F -33,454 shares

    0.03% of the 13F portfolio, value $4,918,139.

    13F-HR 0001104659-25-011961 filed by BROWN BROTHERS HARRIMAN & CO
    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 60,269 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $14,016,159.

    13F-HR 0001104659-24-117355 filed by BROWN BROTHERS HARRIMAN & CO
    Filed (acceptance time not in the bulk data set), ingested

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