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Disclosery

North Star Investment Management Corp.: ZLAB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of North Star Investment Management Corp. on ZLAB, newest first. How the timeline and the estimate are built.

North Star Investment Management Corp. held 97 ZLAB shares at 2026-06-30 per its 13F-HR filed 2026-07-28.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 97 shares
    Change vs previous 13F +97 shares

    <0.01% of the 13F portfolio, value $1,843.

    13F-HR 0001062993-26-003882 filed by North Star Investment Management Corp.
    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 0 shares
    Change vs previous 13F -27 shares

    13F-HR 0001062993-26-002110 filed by North Star Investment Management Corp.
    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.

  3. period ended2025-12-31
    13F 27 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $476.

    13F-HR 0001062993-26-000502 filed by North Star Investment Management Corp.
    Filed (acceptance time not in the bulk data set), ingested

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