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FRONTIER CAPITAL MANAGEMENT CO LLC: CCOI position timeline

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

FRONTIER CAPITAL MANAGEMENT CO LLC held 382,608 CCOI 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 382,608 shares
    Change vs previous 13F -16,600 shares

    0.05% of the 13F portfolio, value $5,310,595.

    13F-HR 0001172661-26-003509 filed by FRONTIER CAPITAL MANAGEMENT CO 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 399,208 shares
    Change vs previous 13F +53,405 shares

    0.08% of the 13F portfolio, value $7,521,081.

    13F-HR 0001172661-26-002082 filed by FRONTIER CAPITAL MANAGEMENT CO 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 345,803 shares
    Change vs previous 13F +83,783 shares

    0.08% of the 13F portfolio, value $7,455,517.

    13F-HR 0001172661-26-000845 filed by FRONTIER CAPITAL MANAGEMENT CO 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 262,020 shares
    Change vs previous 13F +97,341 shares

    0.09% of the 13F portfolio, value $10,048,459.

    13F-HR 0001172661-25-004908 filed by FRONTIER CAPITAL MANAGEMENT CO 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 164,679 shares
    Change vs previous 13F -520 shares

    0.07% of the 13F portfolio, value $7,939,159.

    13F-HR 0001172661-25-003311 filed by FRONTIER CAPITAL MANAGEMENT CO 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 165,199 shares
    Change vs previous 13F -5,057 shares

    0.11% of the 13F portfolio, value $10,128,337.

    13F-HR 0001172661-25-002022 filed by FRONTIER CAPITAL MANAGEMENT CO 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 170,256 shares
    Change vs previous 13F -347 shares

    0.12% of the 13F portfolio, value $13,121,616.

    13F-HR 0001172661-25-001009 filed by FRONTIER CAPITAL MANAGEMENT CO 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 170,603 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $12,952,173.

    13F-HR 0001172661-24-004972 filed by FRONTIER CAPITAL MANAGEMENT CO LLC
    Filed (acceptance time not in the bulk data set), ingested

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