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DARK FOREST CAPITAL MANAGEMENT LP: ATEC position timeline

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

DARK FOREST CAPITAL MANAGEMENT LP held 0 ATEC shares at 2026-03-31 per its 13F-HR filed 2026-05-15.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -22,240 shares

    13F-HR 0002073679-26-000055 filed by DARK FOREST 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 ended2025-12-31
    13F 22,240 shares
    Change vs previous 13F -98,472 shares

    0.02% of the 13F portfolio, value $467,930.

    13F-HR 0001853322-26-000001 filed by DARK FOREST 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 ended2025-09-30
    13F/A 120,712 shares
    Change vs previous 13F +46,167 shares

    0.07% of the 13F portfolio, value $1,755,152.

    13F-HR/A 0001853322-25-000011 filed by DARK FOREST 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 ended2025-06-30
    13F 74,545 shares
    Change vs previous 13F -16,476 shares

    0.03% of the 13F portfolio, value $827,450.

    13F-HR 0001853322-25-000007 filed by DARK FOREST 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 ended2025-03-31
    13F 91,021 shares
    Change vs previous 13F +91,021 shares

    0.04% of the 13F portfolio, value $922,953.

    13F-HR 0001853322-25-000005 filed by DARK FOREST CAPITAL MANAGEMENT LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 0 shares
    Change vs previous 13F -10,570 shares

    13F-HR 0001853322-25-000003 filed by DARK FOREST 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.

  7. period ended2024-09-30
    13F 10,570 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $58,769.

    13F-HR 0001853322-24-000008 filed by DARK FOREST CAPITAL MANAGEMENT LP
    Filed (acceptance time not in the bulk data set), ingested

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