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OSTERWEIS CAPITAL MANAGEMENT INC: ATRC position timeline

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

OSTERWEIS CAPITAL MANAGEMENT INC held 501,355 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 501,355 shares
    Change vs previous 13F +151,710 shares

    0.66% of the 13F portfolio, value $14,027,913.

    13F-HR 0001007524-26-000003 filed by OSTERWEIS CAPITAL MANAGEMENT INC
    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 349,645 shares
    Change vs previous 13F +146,070 shares

    0.51% of the 13F portfolio, value $9,975,372.

    13F-HR 0001007524-26-000002 filed by OSTERWEIS CAPITAL 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 203,575 shares
    Change vs previous 13F -118,505 shares

    0.34% of the 13F portfolio, value $8,053,427.

    13F-HR 0001007524-26-000001 filed by OSTERWEIS CAPITAL 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 322,080 shares
    Change vs previous 13F +6,550 shares

    0.51% of the 13F portfolio, value $11,353,320.

    13F-HR 0001007524-25-000003 filed by OSTERWEIS CAPITAL MANAGEMENT INC
    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 315,530 shares
    Change vs previous 13F +19,925 shares

    0.49% of the 13F portfolio, value $10,339,918.

    13F-HR 0001085146-25-005142 filed by OSTERWEIS CAPITAL MANAGEMENT INC
    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/A 295,605 shares
    Change vs previous 13F not available

    0.47% of the 13F portfolio, value $9,536,217.

    13F-HR/A 0001085146-25-003428 filed by OSTERWEIS CAPITAL MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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