Skip to content
Disclosery

Champlain Investment Partners, LLC: ATRC position timeline

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

Champlain Investment Partners, LLC held 938,567 ATRC shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 938,567 shares
    Change vs previous 13F -32,544 shares

    0.67% of the 13F portfolio, value $26,261,105.

    13F-HR 0001315478-26-000020 filed by Champlain Investment Partners, LLC
    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 971,111 shares
    Change vs previous 13F -202,494 shares

    0.35% of the 13F portfolio, value $27,705,797.

    13F-HR 0001315478-26-000017 filed by Champlain Investment Partners, LLC
    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 1,173,605 shares
    Change vs previous 13F -804,608 shares

    0.47% of the 13F portfolio, value $46,427,814.

    13F-HR 0001315478-26-000015 filed by Champlain Investment Partners, LLC
    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 1,978,213 shares
    Change vs previous 13F -38,541 shares

    0.53% of the 13F portfolio, value $69,732,008.

    13F-HR 0001315478-25-000030 filed by Champlain Investment Partners, LLC
    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 2,016,754 shares
    Change vs previous 13F -121,209 shares

    0.46% of the 13F portfolio, value $66,089,029.

    13F-HR 0001315478-25-000025 filed by Champlain Investment Partners, LLC
    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 2,137,963 shares
    Change vs previous 13F -390,651 shares

    0.5% of the 13F portfolio, value $68,970,686.

    13F-HR 0001315478-25-000012 filed by Champlain Investment Partners, LLC
    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 2,528,614 shares
    Change vs previous 13F -262,144 shares

    0.49% of the 13F portfolio, value $77,274,444.

    13F-HR 0001315478-25-000003 filed by Champlain Investment Partners, LLC
    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 2,790,758 shares
    Change vs previous 13F not available

    0.47% of the 13F portfolio, value $78,252,854.

    13F-HR 0001315478-24-000048 filed by Champlain Investment Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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