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Disclosery

Corton Capital Inc.: ATEC position timeline

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

Corton Capital Inc. held 10,606 ATEC shares at 2025-09-30 per its 13F-HR filed 2025-11-14.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 10,606 shares
    Change vs previous 13F -8,551 shares

    0.38% of the 13F portfolio, value $154,211.

    13F-HR 0001214659-25-016497 filed by Corton Capital Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-06-30
    13F 19,157 shares
    Change vs previous 13F +5,097 shares

    0.25% of the 13F portfolio, value $212,643.

    13F-HR 0001214659-25-011502 filed by Corton Capital Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-03-31
    13F 14,060 shares
    Change vs previous 13F not available

    0.47% of the 13F portfolio, value $142,568.

    13F-HR 0001214659-25-007085 filed by Corton Capital Inc.
    Filed (acceptance time not in the bulk data set), ingested

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