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TANAKA CAPITAL MANAGEMENT INC: NUVB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of TANAKA CAPITAL MANAGEMENT INC on NUVB, newest first. How the timeline and the estimate are built.

TANAKA CAPITAL MANAGEMENT INC held 901,825 NUVB shares at 2026-03-31 per its 13F-HR filed 2026-05-18.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 901,825 shares
    Change vs previous 13F +60,220 shares

    6.46% of the 13F portfolio, value $3,869,000.

    13F-HR 0000816788-26-000002 filed by TANAKA CAPITAL MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-12-31
    13F 841,605 shares
    Change vs previous 13F +156,500 shares

    13.76% of the 13F portfolio, value $7,541,000.

    13F-HR 0000816788-26-000001 filed by TANAKA CAPITAL MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 685,105 shares
    Change vs previous 13F not available

    4.56% of the 13F portfolio, value $2,535,000.

    13F-HR 0000816788-25-000005 filed by TANAKA CAPITAL MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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