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GAMCO Investors (Gabelli): RUSHB position timeline

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

GAMCO Investors (Gabelli) held 1,558,375 RUSHB 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 1,558,375 shares
    Change vs previous 13F -38,100 shares

    0.44% of the 13F portfolio, value $119,215,688.

    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: 1,052,375 shares
    • GABELLI FUNDS LLC: 506,000 shares

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

  2. period ended2026-03-31
    13F 1,596,475 shares
    Change vs previous 13F -18,200 shares

    0.41% of the 13F portfolio, value $102,733,166.

    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: 1,065,975 shares
    • GABELLI FUNDS LLC: 530,500 shares

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

  3. period ended2025-12-31
    13F 1,614,675 shares
    Change vs previous 13F -11,500 shares

    0.36% of the 13F portfolio, value $90,841,616.

    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: 1,073,675 shares
    • GABELLI FUNDS LLC: 541,000 shares

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

  4. period ended2025-09-30
    13F 1,626,175 shares
    Change vs previous 13F -4,686 shares

    0.37% of the 13F portfolio, value $93,374,969.

    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: 1,079,175 shares
    • GABELLI FUNDS LLC: 547,000 shares

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

  5. period ended2025-06-30
    13F 1,630,861 shares
    Change vs previous 13F -7,264 shares

    0.35% of the 13F portfolio, value $85,587,585.

    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: 1,081,675 shares
    • GABELLI FUNDS LLC: 549,186 shares

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

  6. period ended2025-03-31
    13F 1,638,125 shares
    Change vs previous 13F -6,800 shares

    0.42% of the 13F portfolio, value $92,586,825.

    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: 1,082,875 shares
    • GABELLI FUNDS LLC: 555,250 shares

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

  7. period ended2024-12-31
    13F 1,644,925 shares
    Change vs previous 13F -2,000 shares

    0.39% of the 13F portfolio, value $89,549,717.

    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: 1,086,675 shares
    • GABELLI FUNDS LLC: 558,250 shares

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

  8. period ended2024-09-30
    13F 1,646,925 shares
    Change vs previous 13F not available

    0.33% of the 13F portfolio, value $78,970,054.

    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: 1,088,675 shares
    • GABELLI FUNDS LLC: 558,250 shares

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