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Minerva Advisors LLC: ATRO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Minerva Advisors LLC on ATRO, newest first. How the timeline and the estimate are built.

Minerva Advisors LLC held 55,041 ATRO 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 55,041 shares
    Change vs previous 13F -15,299 shares

    2.83% of the 13F portfolio, value $4,472,632.

    13F-HR 0001420506-26-001549 filed by Minerva Advisors LLC
    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 70,340 shares
    Change vs previous 13F -31,904 shares

    3.03% of the 13F portfolio, value $4,693,789.

    13F-HR 0001420506-26-000931 filed by Minerva Advisors LLC
    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 102,244 shares
    Change vs previous 13F -92,797 shares

    3.7% of the 13F portfolio, value $5,545,715.

    13F-HR 0001420506-26-000218 filed by Minerva Advisors LLC
    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 195,041 shares
    Change vs previous 13F -60,864 shares

    5.65% of the 13F portfolio, value $8,895,820.

    13F-HR 0001420506-25-003135 filed by Minerva Advisors LLC
    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 255,905 shares
    Change vs previous 13F -207,200 shares

    5.61% of the 13F portfolio, value $8,562,582.

    13F-HR 0001462390-25-000018 filed by Minerva Advisors LLC
    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/A 463,105 shares
    Change vs previous 13F 0 shares

    7.96% of the 13F portfolio, value $11,193,248.

    13F-HR/A 0001462390-25-000012 filed by Minerva Advisors LLC
    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 463,105 shares
    Change vs previous 13F 0 shares

    4.32% of the 13F portfolio, value $7,391,156.

    13F-HR 0001462390-25-000003 filed by Minerva Advisors LLC
    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 463,105 shares
    Change vs previous 13F not available

    5.21% of the 13F portfolio, value $8,988,868.

    13F-HR 0001462390-24-000047 filed by Minerva Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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