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GSA CAPITAL PARTNERS LLP: AMSF position timeline

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

GSA CAPITAL PARTNERS LLP held 13,413 AMSF 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 13,413 shares
    Change vs previous 13F +2,892 shares

    0.03% of the 13F portfolio, value $454,000.

    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 10,521 shares
    Change vs previous 13F -12,874 shares

    0.02% of the 13F portfolio, value $351,000.

    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 23,395 shares
    Change vs previous 13F +11,355 shares

    0.08% of the 13F portfolio, value $899,000.

    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 12,040 shares
    Change vs previous 13F +12,040 shares

    0.04% of the 13F portfolio, value $528,000.

    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 0 shares
    Change vs previous 13F -16,456 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  6. period ended2025-03-31
    13F 16,456 shares
    Change vs previous 13F -10,514 shares

    0.08% of the 13F portfolio, value $865,000.

    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 26,970 shares
    Change vs previous 13F -16,621 shares

    0.1% of the 13F portfolio, value $1,390,000.

    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 43,591 shares
    Change vs previous 13F not available

    0.16% of the 13F portfolio, value $2,107,000.

    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).