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GAMCO Investors (Gabelli): BSX position timeline

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

GAMCO Investors (Gabelli) held 146,613 BSX 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 146,613 shares
    Change vs previous 13F -334,009 shares

    0.02% of the 13F portfolio, value $6,257,443.

    13F-HR 0001140361-26-032509 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 64,563 shares
    • GABELLI FUNDS LLC: 82,050 shares

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

  2. period ended2026-03-31
    13F 480,622 shares
    Change vs previous 13F +48,302 shares

    0.12% of the 13F portfolio, value $30,159,031.

    13F-HR 0001140361-26-021337 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 155,146 shares
    • GABELLI FUNDS LLC: 325,476 shares

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

  3. period ended2025-12-31
    13F 432,320 shares
    Change vs previous 13F -13,793 shares

    0.16% of the 13F portfolio, value $41,221,712.

    13F-HR 0001140361-26-003893 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 111,639 shares
    • GABELLI FUNDS LLC: 320,681 shares

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

  4. period ended2025-09-30
    13F 446,113 shares
    Change vs previous 13F -2,707 shares

    0.17% of the 13F portfolio, value $43,554,012.

    13F-HR 0001140361-25-041671 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 123,992 shares
    • GABELLI FUNDS LLC: 322,121 shares

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

  5. period ended2025-06-30
    13F 448,820 shares
    Change vs previous 13F -1,233 shares

    0.2% of the 13F portfolio, value $48,207,757.

    13F-HR 0001140361-25-030816 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 125,199 shares
    • GABELLI FUNDS LLC: 323,621 shares

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

  6. period ended2025-03-31
    13F 450,053 shares
    Change vs previous 13F -74,868 shares

    0.2% of the 13F portfolio, value $45,401,346.

    13F-HR 0001140361-25-018974 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 126,582 shares
    • GABELLI FUNDS LLC: 323,471 shares

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

  7. period ended2024-12-31
    13F 524,921 shares
    Change vs previous 13F +2,235 shares

    0.21% of the 13F portfolio, value $46,885,944.

    13F-HR 0001140361-25-004328 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 129,325 shares
    • GABELLI FUNDS LLC: 395,596 shares

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

  8. period ended2024-09-30
    13F 522,686 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $43,801,087.

    13F-HR 0001140361-24-046503 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 120,290 shares
    • GABELLI FUNDS LLC: 402,396 shares

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