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Disclosery

HENNESSY ADVISORS INC: NGG position timeline

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

HENNESSY ADVISORS INC held 194,044 NGG 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 194,044 shares
    Change vs previous 13F +13,100 shares

    0.51% of the 13F portfolio, value $16,080,426.

    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 180,944 shares
    Change vs previous 13F +300 shares

    0.55% of the 13F portfolio, value $15,307,862.

    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 180,644 shares
    Change vs previous 13F -4,900 shares

    0.5% of the 13F portfolio, value $13,972,813.

    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 185,544 shares
    Change vs previous 13F -25,500 shares

    0.47% of the 13F portfolio, value $13,483,482.

    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 211,044 shares
    Change vs previous 13F +11,700 shares

    0.52% of the 13F portfolio, value $15,703,784.

    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 199,344 shares
    Change vs previous 13F -9,800 shares

    0.44% of the 13F portfolio, value $13,078,960.

    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 209,144 shares
    Change vs previous 13F +5,700 shares

    0.37% of the 13F portfolio, value $12,427,336.

    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 203,444 shares
    Change vs previous 13F not available

    0.45% of the 13F portfolio, value $14,173,943.

    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).