FMR LLC: CIEN position timeline

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

FMR LLC held 19,113,538 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

period ended2026-06-30
13F 19,113,538 shares
Change vs previous 13F -2,096,218 shares
0.41% of the 13F portfolio, value $9,376,337,063.
13F-HR 0000315066-26-002260 filed by FMR LLC
Filed 2026-08-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 21,209,756 shares
Change vs previous 13F not available
0.43% of the 13F portfolio, value $8,234,263,456.
13F-HR 0000315066-26-001390 filed by FMR LLC
Filed 2026-05-15 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
Acceptance time not in the bulk data set (spec §4.2).