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GAMCO Investors (Gabelli): JPST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GAMCO Investors (Gabelli) on JPST, newest first. How the timeline and the estimate are built.

GAMCO Investors (Gabelli) held 11,181 JPST shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 11,181 shares
    Change vs previous 13F -221,652 shares

    0.01% of the 13F portfolio, value $565,423.

    13F-HR 0001140361-26-032508 filed by GAMCO INVESTORS, INC. ET AL
    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 232,833 shares
    Change vs previous 13F +39,241 shares

    0.12% of the 13F portfolio, value $11,783,678.

    13F-HR 0001140361-26-021334 filed by GAMCO INVESTORS, INC. ET AL
    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 193,592 shares
    Change vs previous 13F +92,687 shares

    0.09% of the 13F portfolio, value $9,793,819.

    13F-HR 0001140361-26-003895 filed by GAMCO INVESTORS, INC. ET AL
    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 100,905 shares
    Change vs previous 13F +27,740 shares

    0.05% of the 13F portfolio, value $5,118,911.

    13F-HR 0001140361-25-041670 filed by GAMCO INVESTORS, INC. ET AL
    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 73,165 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $3,708,002.

    13F-HR 0001140361-25-030814 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

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