Skip to content
Disclosery

TANAKA CAPITAL MANAGEMENT INC: IONS position timeline

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

TANAKA CAPITAL MANAGEMENT INC held 6,714 IONS shares at 2025-03-31 per its 13F-HR filed 2025-05-15.

the latest 13F is the newest step

  1. period ended2025-03-31
    13F 6,714 shares
    Change vs previous 13F -178 shares

    0.48% of the 13F portfolio, value $203,000.

    13F-HR 0000816788-25-000002 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 ended2024-12-31
    13F 6,892 shares
    Change vs previous 13F -7,620 shares

    0.55% of the 13F portfolio, value $241,000.

    13F-HR 0000816788-25-000001 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 ended2024-09-30
    13F 14,512 shares
    Change vs previous 13F 0 shares

    1.34% of the 13F portfolio, value $581,000.

    13F-HR 0000816788-24-000004 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).

  4. period ended2024-06-30
    13F 14,512 shares
    Change vs previous 13F not available

    1.64% of the 13F portfolio, value $692,000.

    13F-HR 0000816788-24-000003 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).