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HENNESSY ADVISORS INC: GSK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HENNESSY ADVISORS INC on GSK, newest first. How the timeline and the estimate are built.

HENNESSY ADVISORS INC held 122,460 GSK shares at 2026-06-30 per its 13F-HR filed 2026-07-16.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 122,460 shares
    Change vs previous 13F -2,300 shares

    0.21% of the 13F portfolio, value $6,419,353.

    13F-HR 0000897069-26-001507 filed by HENNESSY ADVISORS INC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2026-03-31
    13F 124,760 shares
    Change vs previous 13F -27,900 shares

    0.25% of the 13F portfolio, value $6,885,504.

    13F-HR 0000897069-26-000920 filed by HENNESSY ADVISORS INC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 152,660 shares
    Change vs previous 13F -8,500 shares

    0.27% of the 13F portfolio, value $7,486,446.

    13F-HR 0000897069-26-000187 filed by HENNESSY ADVISORS INC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 161,160 shares
    Change vs previous 13F -2,500 shares

    0.24% of the 13F portfolio, value $6,955,666.

    13F-HR 0000897069-25-001587 filed by HENNESSY ADVISORS INC
    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 163,660 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $6,284,544.

    13F-HR 0000897069-25-001186 filed by HENNESSY ADVISORS INC
    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 163,660 shares
    Change vs previous 13F +39,100 shares

    0.21% of the 13F portfolio, value $6,340,188.

    13F-HR 0000897069-25-000822 filed by HENNESSY ADVISORS INC
    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 124,560 shares
    Change vs previous 13F -4,500 shares

    0.13% of the 13F portfolio, value $4,212,619.

    13F-HR 0000897069-25-000103 filed by HENNESSY ADVISORS INC
    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 129,060 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $5,275,973.

    13F-HR 0000897069-24-001965 filed by HENNESSY ADVISORS INC
    Filed (acceptance time not in the bulk data set), ingested

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