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Nantahala Capital Management, LLC: JACK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Nantahala Capital Management, LLC on JACK, newest first. How the timeline and the estimate are built.

Nantahala Capital Management, LLC held 1,728,659 JACK shares at 2026-06-30 per its 13F-HR/A filed 2026-08-19.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 1,728,659 shares
    Change vs previous 13F +185,944 shares

    1.65% of the 13F portfolio, value $27,330,099.

    13F-HR/A 0001104659-26-098416 filed by Nantahala Capital Management, 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 1,542,715 shares
    Change vs previous 13F +676,725 shares

    0.93% of the 13F portfolio, value $14,918,054.

    13F-HR 0001104659-26-062659 filed by Nantahala Capital Management, 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 865,990 shares
    Change vs previous 13F +265,990 shares

    0.98% of the 13F portfolio, value $16,410,510.

    13F-HR 0001104659-26-015271 filed by Nantahala Capital Management, 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 600,000 shares
    Change vs previous 13F 0 shares

    0.73% of the 13F portfolio, value $11,862,000.

    13F-HR 0001104659-25-112624 filed by Nantahala Capital Management, 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 600,000 shares
    Change vs previous 13F not available

    0.74% of the 13F portfolio, value $10,476,000.

    13F-HR 0001104659-25-078700 filed by Nantahala Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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