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GSA CAPITAL PARTNERS LLP: ATAT position timeline

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

GSA CAPITAL PARTNERS LLP held 48,984 ATAT 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 48,984 shares
    Change vs previous 13F +17,992 shares

    0.1% of the 13F portfolio, value $1,558,000.

    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 30,992 shares
    Change vs previous 13F -11,422 shares

    0.07% of the 13F portfolio, value $1,141,000.

    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 42,414 shares
    Change vs previous 13F +4,183 shares

    0.14% of the 13F portfolio, value $1,671,000.

    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 38,231 shares
    Change vs previous 13F +19,894 shares

    0.12% of the 13F portfolio, value $1,437,000.

    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 18,337 shares
    Change vs previous 13F +6,852 shares

    0.04% of the 13F portfolio, value $596,000.

    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 11,485 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $326,000.

    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).