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Disclosery

HENNESSY ADVISORS INC: MRK position timeline

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

HENNESSY ADVISORS INC held 114,850 MRK 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 114,850 shares
    Change vs previous 13F -2,950 shares

    0.47% of the 13F portfolio, value $14,758,225.

    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 117,800 shares
    Change vs previous 13F -4,050 shares

    0.51% of the 13F portfolio, value $14,170,162.

    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 121,850 shares
    Change vs previous 13F -3,450 shares

    0.45% of the 13F portfolio, value $12,825,931.

    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 125,300 shares
    Change vs previous 13F -200 shares

    0.36% of the 13F portfolio, value $10,516,429.

    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 125,500 shares
    Change vs previous 13F +1,850 shares

    0.33% of the 13F portfolio, value $9,934,580.

    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 123,650 shares
    Change vs previous 13F +58,700 shares

    0.37% of the 13F portfolio, value $11,098,824.

    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 64,950 shares
    Change vs previous 13F +18,000 shares

    0.19% of the 13F portfolio, value $6,461,226.

    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 46,950 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $5,331,642.

    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).