NYSE:CIEN | Shares Outstanding | CIENA CORP

Complete source-backed shares outstanding history.

Available history
2009-10-31 to 2026-08-28
Data captured

Historical Shares Outstanding

DateShares outstanding
2026-08-28141,808,525
2026-08-01141,897,511
2026-05-29141,552,922
2026-05-02141,597,550
2026-02-27141,398,427
2026-01-31141,452,656
2025-12-05140,854,735
2025-11-01141,016,300
2025-08-29141,055,908
2025-08-02141,342,527
2025-05-30141,367,218
2025-05-03141,686,082
2025-03-07142,145,676
2025-02-01142,528,510
2024-12-13142,115,595
2024-11-02142,656,116
2024-08-30144,427,200
2024-07-27144,426,873
2024-05-31143,705,017
2024-04-27144,199,201
2024-03-01144,602,692
2024-01-27144,946,510
2023-12-08144,830,337
2023-10-28144,829,938
2023-09-01147,842,355
2023-07-29148,772,513
2023-06-02149,498,607
2023-04-29149,498,465
2023-03-03149,159,768
2023-01-28149,157,588
2022-12-09148,415,009
2022-10-29148,412,943
2022-09-02148,141,810
2022-07-30148,293,357
2022-06-03149,704,796
2022-04-30150,865,553
2022-03-04152,126,441
2022-01-29152,990,723
2021-12-10154,882,650
2021-10-30154,858,981
2021-09-03154,929,206
2021-07-31155,103,315
2021-06-04154,767,152
2021-05-01154,962,122
2021-03-05155,003,312
2021-01-30155,187,945
2020-12-11154,564,349
2020-10-31154,563,005
2020-09-04154,319,547
2020-08-01154,318,197
2020-06-05153,644,375
2020-05-02153,641,565
2020-03-06153,503,455
2020-01-31153,946,833
2019-12-16154,054,072
2019-11-02154,403,850
2019-10-31154,403,850
2019-09-06154,696,211
2019-07-31155,113,012
2019-06-07155,088,524
2019-04-30155,566,701
2019-03-06155,953,204
2019-01-31156,336,210
2018-12-17156,481,822
2018-10-31154,318,531
2018-08-31142,601,249
2018-07-31143,050,180
2018-06-04142,827,652
2018-04-30143,427,976
2018-03-05143,586,925
2018-01-31144,180,782
2017-12-15143,679,592
2017-10-31143,043,227
2017-09-01142,688,322
2017-07-31142,672,784
2017-06-02141,831,617
2017-04-30141,768,448
2017-03-03141,317,330
2017-01-31141,262,606
2016-12-16140,379,744
2016-10-31139,767,627
2016-09-02139,341,312
2016-07-31139,253,617
2016-06-03138,116,410
2016-04-30138,008,639
2016-03-04137,548,675
2016-01-31137,436,562
2015-12-11135,790,185
2015-10-31135,612,217
2015-09-04134,754,004
2015-07-31118,725,874
2015-06-05117,746,722
2015-04-30117,695,169
2015-03-06108,281,817
2015-01-31108,246,661
2014-12-12106,985,271
2014-10-31106,979,960
2014-09-02106,566,064
2014-07-31106,566,064
2014-06-06105,593,414