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GAMCO Investors (Gabelli): CNS position timeline

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

GAMCO Investors (Gabelli) held 551,745 CNS 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 551,745 shares
    Change vs previous 13F +58,255 shares

    0.16% of the 13F portfolio, value $42,009,864.

    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: 351,873 shares
    • GABELLI FUNDS LLC: 199,872 shares

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

  2. period ended2026-03-31
    13F 493,490 shares
    Change vs previous 13F +62,145 shares

    0.12% of the 13F portfolio, value $30,867,799.

    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: 303,095 shares
    • GABELLI FUNDS LLC: 190,395 shares

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

  3. period ended2025-12-31
    13F 431,345 shares
    Change vs previous 13F +150,502 shares

    0.11% of the 13F portfolio, value $27,079,839.

    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: 293,350 shares
    • GABELLI FUNDS LLC: 137,995 shares

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

  4. period ended2025-09-30
    13F 280,843 shares
    Change vs previous 13F +4,616 shares

    0.18% of the 13F portfolio, value $18,426,109.

    13F-HR 0001140361-25-041670 filed by GAMCO INVESTORS, INC. ET AL
    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 276,227 shares
    Change vs previous 13F +750 shares

    0.21% of the 13F portfolio, value $20,813,704.

    13F-HR 0001140361-25-030814 filed by GAMCO INVESTORS, INC. ET AL
    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 275,477 shares
    Change vs previous 13F -1,333 shares

    0.24% of the 13F portfolio, value $22,107,029.

    13F-HR 0001140361-25-018975 filed by GAMCO INVESTORS, INC. ET AL
    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 276,810 shares
    Change vs previous 13F -22,287 shares

    0.27% of the 13F portfolio, value $25,560,635.

    13F-HR 0001140361-25-004330 filed by GAMCO INVESTORS, INC. ET AL
    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 299,097 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $28,698,357.

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

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