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GAMCO Investors (Gabelli): GATX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GAMCO Investors (Gabelli) on GATX, newest first. How the timeline and the estimate are built.

GAMCO Investors (Gabelli) held 1,866,112 GATX 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 1,866,112 shares
    Change vs previous 13F -80,311 shares

    1.23% of the 13F portfolio, value $330,656,386.

    13F-HR 0001140361-26-032508 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,054,962 shares
    • GABELLI FUNDS LLC: 811,150 shares

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

  2. period ended2026-03-31
    13F 1,946,423 shares
    Change vs previous 13F -165,064 shares

    1.33% of the 13F portfolio, value $332,332,263.

    13F-HR 0001140361-26-021334 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,100,973 shares
    • GABELLI FUNDS LLC: 845,450 shares

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

  3. period ended2025-12-31
    13F 2,111,487 shares
    Change vs previous 13F -41,602 shares

    1.42% of the 13F portfolio, value $358,108,195.

    13F-HR 0001140361-26-003895 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,197,637 shares
    • GABELLI FUNDS LLC: 913,850 shares

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

  4. period ended2025-09-30
    13F 2,153,089 shares
    Change vs previous 13F -98,164 shares

    1.5% of the 13F portfolio, value $376,359,957.

    13F-HR 0001140361-25-041670 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,226,539 shares
    • GABELLI FUNDS LLC: 926,550 shares

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

  5. period ended2025-06-30
    13F 2,251,253 shares
    Change vs previous 13F -36,040 shares

    1.43% of the 13F portfolio, value $345,702,411.

    13F-HR 0001140361-25-030814 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,285,953 shares
    • GABELLI FUNDS LLC: 965,300 shares

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

  6. period ended2025-03-31
    13F 2,287,293 shares
    Change vs previous 13F -41,122 shares

    1.6% of the 13F portfolio, value $355,147,984.

    13F-HR 0001140361-25-018975 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,300,493 shares
    • GABELLI FUNDS LLC: 986,800 shares

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

  7. period ended2024-12-31
    13F 2,328,415 shares
    Change vs previous 13F -60,290 shares

    1.58% of the 13F portfolio, value $360,811,188.

    13F-HR 0001140361-25-004330 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,321,265 shares
    • GABELLI FUNDS LLC: 1,007,150 shares

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

  8. period ended2024-09-30
    13F 2,388,705 shares
    Change vs previous 13F not available

    1.34% of the 13F portfolio, value $316,383,977.

    13F-HR 0001140361-24-046738 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 1,361,805 shares
    • GABELLI FUNDS LLC: 1,026,900 shares

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