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GAMCO Investors (Gabelli): GBX position timeline

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

GAMCO Investors (Gabelli) held 229,400 GBX 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 229,400 shares
    Change vs previous 13F -9,971 shares

    0.04% of the 13F portfolio, value $11,242,894.

    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: 147,200 shares
    • GABELLI FUNDS LLC: 82,200 shares

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

  2. period ended2026-03-31
    13F 239,371 shares
    Change vs previous 13F -4,329 shares

    0.05% of the 13F portfolio, value $12,602,883.

    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: 147,200 shares
    • GABELLI FUNDS LLC: 92,171 shares

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

  3. period ended2025-12-31
    13F 243,700 shares
    Change vs previous 13F +4,000 shares

    0.05% of the 13F portfolio, value $11,390,538.

    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: 149,200 shares
    • GABELLI FUNDS LLC: 94,500 shares

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

  4. period ended2025-09-30
    13F 239,700 shares
    Change vs previous 13F +8,804 shares

    0.04% of the 13F portfolio, value $11,066,949.

    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: 145,200 shares
    • GABELLI FUNDS LLC: 94,500 shares

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

  5. period ended2025-06-30
    13F 230,896 shares
    Change vs previous 13F +36,296 shares

    0.04% of the 13F portfolio, value $10,632,761.

    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: 141,200 shares
    • GABELLI FUNDS LLC: 89,696 shares

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

  6. period ended2025-03-31
    13F 194,600 shares
    Change vs previous 13F -7,200 shares

    0.04% of the 13F portfolio, value $9,967,412.

    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: 112,100 shares
    • GABELLI FUNDS LLC: 82,500 shares

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

  7. period ended2024-12-31
    13F 201,800 shares
    Change vs previous 13F -23,300 shares

    0.05% of the 13F portfolio, value $12,307,782.

    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: 118,300 shares
    • GABELLI FUNDS LLC: 83,500 shares

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

  8. period ended2024-09-30
    13F 225,100 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $11,455,339.

    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: 138,100 shares
    • GABELLI FUNDS LLC: 87,000 shares

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