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GSA CAPITAL PARTNERS LLP: ALTO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GSA CAPITAL PARTNERS LLP on ALTO, newest first. How the timeline and the estimate are built.

GSA CAPITAL PARTNERS LLP held 232,071 ALTO shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 232,071 shares
    Change vs previous 13F +76,316 shares

    0.08% of the 13F portfolio, value $1,323,000.

    13F-HR 0001362033-26-000006 filed by GSA CAPITAL PARTNERS LLP
    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 155,755 shares
    Change vs previous 13F -119,884 shares

    0.05% of the 13F portfolio, value $754,000.

    13F-HR 0001362033-26-000005 filed by GSA CAPITAL PARTNERS LLP
    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 275,639 shares
    Change vs previous 13F -419,738 shares

    0.07% of the 13F portfolio, value $794,000.

    13F-HR 0001362033-26-000001 filed by GSA CAPITAL PARTNERS LLP
    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 695,377 shares
    Change vs previous 13F +6,810 shares

    0.06% of the 13F portfolio, value $751,000.

    13F-HR 0001362033-25-000016 filed by GSA CAPITAL PARTNERS LLP
    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 688,567 shares
    Change vs previous 13F +173,233 shares

    0.06% of the 13F portfolio, value $792,000.

    13F-HR 0001362033-25-000007 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 515,334 shares
    Change vs previous 13F +119,149 shares

    0.05% of the 13F portfolio, value $587,000.

    13F-HR 0001362033-25-000006 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 396,185 shares
    Change vs previous 13F +148,509 shares

    0.05% of the 13F portfolio, value $618,000.

    13F-HR 0001362033-25-000005 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 247,676 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $399,000.

    13F-HR 0001362033-24-000011 filed by GSA CAPITAL PARTNERS LLP
    Filed (acceptance time not in the bulk data set), ingested

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