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TANAKA CAPITAL MANAGEMENT INC: PM position timeline

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

TANAKA CAPITAL MANAGEMENT INC held 2,851 PM 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 2,851 shares
    Change vs previous 13F -3,485 shares

    0.79% of the 13F portfolio, value $471,000.

    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 6,336 shares
    Change vs previous 13F -10 shares

    1.85% of the 13F portfolio, value $1,016,000.

    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 6,346 shares
    Change vs previous 13F -34 shares

    1.85% of the 13F portfolio, value $1,029,000.

    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).

  4. period ended2025-03-31
    13F 6,380 shares
    Change vs previous 13F +19 shares

    2.41% of the 13F portfolio, value $1,013,000.

    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).

  5. period ended2024-12-31
    13F 6,361 shares
    Change vs previous 13F -25 shares

    1.75% of the 13F portfolio, value $766,000.

    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).

  6. period ended2024-09-30
    13F 6,386 shares
    Change vs previous 13F -25 shares

    1.79% of the 13F portfolio, value $775,000.

    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).

  7. period ended2024-06-30
    13F 6,411 shares
    Change vs previous 13F not available

    1.54% of the 13F portfolio, value $650,000.

    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).