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Semanteon Capital Management, LP: ATEC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Semanteon Capital Management, LP on ATEC, newest first. How the timeline and the estimate are built.

Semanteon Capital Management, LP held 0 ATEC shares at 2025-12-31 per its 13F-HR filed 2026-02-10.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -38,490 shares

    13F-HR 0002085853-26-000232 filed by Semanteon Capital Management, LP
    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.

  2. period ended2025-09-30
    13F 38,490 shares
    Change vs previous 13F +27,866 shares

    0.7% of the 13F portfolio, value $559,645.

    13F-HR 0002085853-25-000245 filed by Semanteon Capital Management, LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-06-30
    13F 10,624 shares
    Change vs previous 13F -91,698 shares

    0.18% of the 13F portfolio, value $117,926.

    13F-HR 0001667731-25-001081 filed by Semanteon Capital Management, LP
    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 102,322 shares
    Change vs previous 13F +69,458 shares

    0.56% of the 13F portfolio, value $1,037,545.

    13F-HR 0001667731-25-000619 filed by Semanteon Capital Management, LP
    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 32,864 shares
    Change vs previous 13F not available

    0.16% of the 13F portfolio, value $301,692.

    13F-HR 0001667731-25-000236 filed by Semanteon Capital Management, LP
    Filed (acceptance time not in the bulk data set), ingested

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