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Disclosery

MASSACHUSETTS FINANCIAL SERVICES CO /MA/: ATRC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MASSACHUSETTS FINANCIAL SERVICES CO /MA/ on ATRC, newest first. How the timeline and the estimate are built.

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ held 580,621 ATRC shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 580,621 shares
    Change vs previous 13F -4,732 shares

    0.01% of the 13F portfolio, value $16,245,776.

    13F-HR 0000912938-26-000775 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 585,353 shares
    Change vs previous 13F +74,140 shares

    0.01% of the 13F portfolio, value $16,700,121.

    13F-HR 0000912938-26-000604 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 511,213 shares
    Change vs previous 13F +86,532 shares

    0.01% of the 13F portfolio, value $20,223,587.

    13F-HR 0000912938-26-000025 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 424,681 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $14,970,005.

    13F-HR 0000912938-25-000200 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    Filed (acceptance time not in the bulk data set), ingested

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