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Disclosery

Birch Hill Investment Advisors LLC: COPX position timeline

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

Birch Hill Investment Advisors LLC held 24,520 COPX shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 24,520 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $1,887,304.

    13F-HR 0001172661-26-002717 filed by Birch Hill Investment Advisors 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 24,520 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $1,872,102.

    13F-HR 0001172661-26-001564 filed by Birch Hill Investment Advisors 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 24,520 shares
    Change vs previous 13F 0 shares

    0.07% of the 13F portfolio, value $1,760,291.

    13F-HR 0001172661-26-000323 filed by Birch Hill Investment Advisors 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 24,520 shares
    Change vs previous 13F -4,500 shares

    0.06% of the 13F portfolio, value $1,466,541.

    13F-HR 0001172661-25-004406 filed by Birch Hill Investment Advisors 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 29,020 shares
    Change vs previous 13F -220 shares

    0.06% of the 13F portfolio, value $1,305,900.

    13F-HR 0001172661-25-002792 filed by Birch Hill Investment Advisors 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 29,240 shares
    Change vs previous 13F +360 shares

    0.05% of the 13F portfolio, value $1,142,407.

    13F-HR 0001172661-25-001512 filed by Birch Hill Investment Advisors 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 28,880 shares
    Change vs previous 13F +1,191 shares

    0.05% of the 13F portfolio, value $1,102,638.

    13F-HR 0001172661-25-000385 filed by Birch Hill Investment Advisors 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 27,689 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $1,308,859.

    13F-HR 0001172661-24-004212 filed by Birch Hill Investment Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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