Skip to content
Disclosery

BlackRock, Inc.: ATRC position timeline

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

BlackRock, Inc. held 4,474,548 ATRC shares at 2026-06-30 per its 13F-HR filed 2026-08-07, and reported 7,837,484 shares, 15.4%, in a 13G/A filed 2026-10-05.

Estimated current stake: 7,837,484 shares, 15.4% of the class

Estimated from 13G/A of 2026-10-05. As of 2026-09-30, 13G/A 0002012383-26-003315.

Shares are the reporting group's aggregate and may include entities that do not file a 13F.

Percent of portfolio stays on the 13F for 2026-06-30.

  1. event date2026-09-30
    13G/A 7,837,484 shares
    Share basis changed not comparable

    15.4% of the class. Different basis (group aggregate from 13G/A).

    13G/A 0002012383-26-003315 filed by BlackRock, Inc.
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2026-06-30
    13F 4,474,548 shares
    Change vs previous 13F +431,867 shares

    <0.01% of the 13F portfolio, value $125,197,854.

    13F-HR 0002012383-26-003238 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 4,042,681 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $115,337,702.

    13F-HR 0002012383-26-001841 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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