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GAMCO Investors (Gabelli): QDEL position timeline

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

GAMCO Investors (Gabelli) held 427,635 QDEL 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 427,635 shares
    Change vs previous 13F +7,335 shares

    0.03% of the 13F portfolio, value $7,490,027.

    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: 251,235 shares
    • GABELLI FUNDS LLC: 176,400 shares

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

  2. period ended2026-03-31
    13F 420,300 shares
    Change vs previous 13F +11,180 shares

    0.03% of the 13F portfolio, value $6,905,529.

    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: 253,900 shares
    • GABELLI FUNDS LLC: 166,400 shares

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

  3. period ended2025-12-31
    13F 409,120 shares
    Change vs previous 13F +40,100 shares

    0.05% of the 13F portfolio, value $11,684,467.

    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: 237,220 shares
    • GABELLI FUNDS LLC: 171,900 shares

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

  4. period ended2025-09-30
    13F 369,020 shares
    Change vs previous 13F +13,030 shares

    0.04% of the 13F portfolio, value $10,867,639.

    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: 227,920 shares
    • GABELLI FUNDS LLC: 141,100 shares

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

  5. period ended2025-06-30
    13F 355,990 shares
    Change vs previous 13F -19,690 shares

    0.04% of the 13F portfolio, value $10,259,632.

    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: 223,760 shares
    • GABELLI FUNDS LLC: 132,230 shares

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

  6. period ended2025-03-31
    13F 375,680 shares
    Change vs previous 13F -640 shares

    0.06% of the 13F portfolio, value $13,137,530.

    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: 230,150 shares
    • GABELLI FUNDS LLC: 145,530 shares

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

  7. period ended2024-12-31
    13F 376,320 shares
    Change vs previous 13F -10,427 shares

    0.07% of the 13F portfolio, value $16,765,057.

    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: 230,490 shares
    • GABELLI FUNDS LLC: 145,830 shares

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

  8. period ended2024-09-30
    13F 386,747 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $17,635,663.

    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: 231,817 shares
    • GABELLI FUNDS LLC: 154,930 shares

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