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Disclosery

ROBOTTI ROBERT: ATKR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ROBOTTI ROBERT on ATKR, newest first. How the timeline and the estimate are built.

ROBOTTI ROBERT held 0 ATKR shares at 2025-09-30 per its 13F-HR filed 2025-11-12.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -7,000 shares

    13F-HR 0001140361-25-041433 filed by ROBOTTI ROBERT
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-06-30
    13F 7,000 shares
    Change vs previous 13F -5,500 shares

    0.08% of the 13F portfolio, value $493,850.

    13F-HR 0001140361-25-030741 filed by ROBOTTI ROBERT
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 12,500 shares
    Change vs previous 13F 0 shares

    0.15% of the 13F portfolio, value $749,875.

    13F-HR 0001140361-25-018531 filed by ROBOTTI ROBERT
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-12-31
    13F 12,500 shares
    Change vs previous 13F -1,000 shares

    0.18% of the 13F portfolio, value $1,043,125.

    13F-HR 0001140361-25-003938 filed by ROBOTTI ROBERT
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-09-30
    13F 13,500 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $1,143,990.

    13F-HR 0001140361-24-046733 filed by ROBOTTI ROBERT
    Filed (acceptance time not in the bulk data set), ingested

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