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Disclosery

PRICE T ROWE ASSOCIATES INC /MD/: CIEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PRICE T ROWE ASSOCIATES INC /MD/ on CIEN, newest first. How the timeline and the estimate are built.

PRICE T ROWE ASSOCIATES INC /MD/ held 4,071,401 CIEN 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 4,071,401 shares
    Change vs previous 13F -1,171,401 shares

    0.2% of the 13F portfolio, value $1,997,267,000.

    13F-HR 0000080255-26-000519 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 5,242,802 shares
    Change vs previous 13F +1,191,177 shares

    0.24% of the 13F portfolio, value $2,035,414,000.

    13F-HR 0000080255-26-000381 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 4,051,625 shares
    Change vs previous 13F +1,404,132 shares

    0.1% of the 13F portfolio, value $947,554,000.

    13F-HR 0000080255-26-000231 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 2,647,493 shares
    Change vs previous 13F +2,385,270 shares

    0.04% of the 13F portfolio, value $385,661,000.

    13F-HR 0000080255-25-000782 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 262,223 shares
    Change vs previous 13F -907,726 shares

    <0.01% of the 13F portfolio, value $21,327,000.

    13F-HR 0000080255-25-000547 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,169,949 shares
    Change vs previous 13F -3,456,204 shares

    0.01% of the 13F portfolio, value $70,701,000.

    13F-HR 0000080255-25-000284 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 4,626,153 shares
    Change vs previous 13F +3,062,883 shares

    0.05% of the 13F portfolio, value $392,345,000.

    13F-HR 0000080255-25-000216 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,563,270 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $96,283,000.

    13F-HR 0001897612-24-002014 filed by PRICE T ROWE ASSOCIATES INC /MD/
    Filed (acceptance time not in the bulk data set), ingested

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