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ALLIANCEBERNSTEIN L.P.: ATRC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ALLIANCEBERNSTEIN L.P. on ATRC, newest first. How the timeline and the estimate are built.

ALLIANCEBERNSTEIN L.P. held 2,768,365 ATRC shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,768,365 shares
    Change vs previous 13F -490,507 shares

    0.03% of the 13F portfolio, value $78,981,453.

    13F-HR 0001109448-26-000261 filed by ALLIANCEBERNSTEIN L.P.
    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 3,258,872 shares
    Change vs previous 13F -304,710 shares

    0.04% of the 13F portfolio, value $128,920,976.

    13F-HR 0001109448-26-000101 filed by ALLIANCEBERNSTEIN L.P.
    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 3,563,582 shares
    Change vs previous 13F +4,990 shares

    0.04% of the 13F portfolio, value $140,975,304.

    13F-HR 0001109448-26-000021 filed by ALLIANCEBERNSTEIN L.P.
    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 3,558,592 shares
    Change vs previous 13F -15,057 shares

    0.04% of the 13F portfolio, value $125,440,368.

    13F-HR 0001109448-25-000079 filed by ALLIANCEBERNSTEIN L.P.
    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 3,573,649 shares
    Change vs previous 13F -103,200 shares

    0.04% of the 13F portfolio, value $117,108,478.

    13F-HR 0001532155-25-000161 filed by ALLIANCEBERNSTEIN L.P.
    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 3,676,849 shares
    Change vs previous 13F -158,600 shares

    0.04% of the 13F portfolio, value $118,615,149.

    13F-HR 0001532155-25-000116 filed by ALLIANCEBERNSTEIN L.P.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 3,835,449 shares
    Change vs previous 13F -136,999 shares

    0.04% of the 13F portfolio, value $117,211,321.

    13F-HR 0001532155-25-000050 filed by ALLIANCEBERNSTEIN L.P.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 3,972,448 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $111,387,442.

    13F-HR 0001532155-24-000162 filed by ALLIANCEBERNSTEIN L.P.
    Filed (acceptance time not in the bulk data set), ingested

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