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Disclosery

CONTRAVISORY INVESTMENT MANAGEMENT, INC.: ATEC position timeline

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

CONTRAVISORY INVESTMENT MANAGEMENT, INC. held 0 ATEC shares at 2026-06-30 per its 13F-HR filed 2026-07-09.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 0 shares
    Change vs previous 13F -17,023 shares

    13F-HR 0001580642-26-004344 filed by CONTRAVISORY INVESTMENT MANAGEMENT, INC.
    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 ended2026-03-31
    13F 17,023 shares
    Change vs previous 13F -28 shares

    0.04% of the 13F portfolio, value $185,210.

    13F-HR 0001580642-26-002567 filed by CONTRAVISORY INVESTMENT MANAGEMENT, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 17,051 shares
    Change vs previous 13F -631 shares

    0.07% of the 13F portfolio, value $358,753.

    13F-HR 0001580642-26-000220 filed by CONTRAVISORY INVESTMENT MANAGEMENT, INC.
    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 17,682 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $257,096.

    13F-HR 0001580642-25-006507 filed by CONTRAVISORY INVESTMENT MANAGEMENT, INC.
    Filed (acceptance time not in the bulk data set), ingested

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