Ciena Corporation
MX ˙ BMV ˙ US1717793095
SecurityMX:CIEN / Ciena Corporation
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership45,215 shares
Latest Disclosed Value $ 17,553,819
Victory Capital Management Inc reports 16.46% decrease in ownership of CIEN / Ciena Corporation

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 45,215 shares of Ciena Corporation (MX:CIEN) valued at $17,553,819 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 54,125 shares of Ciena Corporation. This represents a change in shares of -16.46% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CIENA COM 171779309 45,215 -8,910 -16.46 17,554 38.67 0.0084
2026-02-13 2025-12-31 13F CIENA COM 171779309 54,125 13,255 32.43 12,658 112.63 0.0071
2025-11-12 2025-09-30 13F CIENA COM 171779309 40,870 -4,101 -9.12 5,954 62.78 0.0035
2025-08-13 2025-06-30 13F CIENA COM 171779309 44,971 5,571 14.14 3,657 53.66 0.0024
2025-05-02 2025-03-31 13F CIENA COM 171779309 39,400 -337,116 -89.54 2,381 -92.55 0.0024
2025-02-06 2024-12-31 13F CIENA COM 171779309 376,516 -1,494,811 -79.88 31,932 -72.29 0.0314
2024-11-05 2024-09-30 13F CIENA COM 171779309 1,871,327 -178,137 -8.69 115,255 16.72 0.1110
2024-08-05 2024-06-30 13F CIENA COM 171779309 2,049,464 301,390 17.24 98,743 14.23 0.0990
2024-05-03 2024-03-31 13F CIENA COM 171779309 1,748,074 -390,617 -18.26 86,442 -10.20 0.0844
2024-02-05 2023-12-31 13F CIENA COM 171779309 2,138,691 -128,603 -5.67 96,262 -10.16 0.1013
2023-11-06 2023-09-30 13F CIENA COM 171779309 2,267,294 -291,753 -11.40 107,152 -1.45 0.1232
2023-07-27 2023-06-30 13F CIENA COM 171779309 2,559,047 242,394 10.46 108,734 -10.63 0.1196
2023-05-02 2023-03-31 13F CIENA COM 171779309 2,316,653 338,136 17.09 121,671 20.63 0.1367
2023-04-25 2022-12-31 13F/A-3 CIENA COM 171779309 1,978,517 1,565,539 379.09 100,865 504.08 0.1161
2023-03-10 2022-12-31 13F/A-2 CIENA COM 171779309 1,978,517 1,565,539 100,865 0.1101
2023-02-10 2022-12-31 13F/A-1 CIENA COM 171779309 1,978,517 1,565,539 100,865 0.0696
2023-02-09 2022-12-31 13F CIENA COM 171779309 1,979,153 1,566,175 100,931 0.0686
2022-11-02 2022-09-30 13F CIENA COM 171779309 412,978 604 0.15 16,697 -11.40 0.0195
2022-08-01 2022-06-30 13F CIENA COM 171779309 412,374 104,987 34.15 18,845 2.32 0.0215
2022-05-04 2022-03-31 13F CIENA COM 171779309 307,387 46,771 17.95 18,418 -8.19 0.0184
2022-02-07 2021-12-31 13F CIENA COM 171779309 260,616 -4,029 -1.52 20,060 47.61 0.0185
2021-11-02 2021-09-30 13F CIENA COM 171779309 264,645 -1,599 -0.60 13,590 -10.27 0.0133
2021-08-03 2021-06-30 13F CIENA COM 171779309 266,244 54,543 25.76 15,146 30.74 0.0145
2021-05-04 2021-03-31 13F CIENA COM 171779309 211,701 119,029 128.44 11,585 136.53 0.0119
2021-02-01 2020-12-31 13F CIENA COM 171779309 92,672 -8,726 -8.61 4,898 21.72 0.0055
2020-11-09 2020-09-30 13F Ciena COM 171779309 101,398 20,163 24.82 4,024 -8.55 0.0052
2020-08-07 2020-06-30 13F CIENA COM 171779309 81,235 4,784 6.26 4,400 44.55 0.0060
2020-05-12 2020-03-31 13F/A-1 CIENA COM 171779309 76,451 -11,197 -12.77 3,044 -18.65 0.0051
2020-05-04 2020-03-31 13F CIENA COM 171779309 76,451 -11,197 3,044 3,331.3487
2020-02-06 2019-12-31 13F/A-1 CIENA COM 171779309 87,648 -134,685 -60.58 3,742 -57.10 0.0045
2020-02-04 2019-12-31 13F CIENA COM 171779309 98,671 -123,662 4,013 4,810.3456
2019-11-12 2019-09-30 13F CIENA COM 171779309 222,333 22,988 11.53 8,722 6.38 0.0112
2019-08-15 2019-06-30 13F CIENA COM 171779309 199,345 -809,927 -80.25 8,199 -78.24 0.0165
2019-05-03 2019-03-31 13F CIENA Common Stock 171779309 1,009,272 32,306 3.31 37,686 13.76 0.0857
2019-05-02 2018-12-31 13F/A-1 CIENA COM 171779309 976,966 -933,265 -48.86 33,129 -44.48 0.0832
2019-02-05 2018-12-31 13F CIENA COM 171779309 976,966 -933,265 33,129
2018-11-01 2018-09-30 13F CIENA COM 171779309 1,910,231 -243,494 -11.31 59,675 4.52 0.1231
2018-08-02 2018-06-30 13F CIENA COM 171779309 2,153,725 1,016,354 89.36 57,095 93.82 0.1215
2018-05-04 2018-03-31 13F CIENA COM 171779309 1,137,371 1,137,371 29,458 0.0643
2018-02-01 2017-12-31 13F CIENA COM 171779309 0 -2,130,544 -100.00 0 -100.00
2017-10-27 2017-09-30 13F CIENA COM 171779309 2,130,544 -499,181 -18.98 46,808 -28.86 0.1052
2017-08-07 2017-06-30 13F CIENA COM 171779309 2,629,725 -142,392 -5.14 65,796 0.53 0.1540
2017-05-10 2017-03-31 13F CIENA COM 171779309 2,772,117 241,353 9.54 65,450 5.95 0.1558
2017-02-09 2016-12-31 13F Ciena COM 171779309 2,530,764 4,832 0.19 61,776 12.19 0.1558
2016-11-02 2016-09-30 13F Ciena COM 171779309 2,525,932 -136,364 -5.12 55,065 10.31 0.1542
2016-08-09 2016-06-30 13F Ciena COM 171779309 2,662,296 147,947 5.88 49,918 4.38 0.1997
2016-05-17 2016-03-31 13F/A-2 Ciena COM 171779309 2,514,349 417,187 19.89 47,823 10.22 0.1975
2016-05-12 2016-03-31 13F/A-1 Ciena COM 171779309 2,513,706 -643 47,811 0.1962
2016-05-12 2016-03-31 13F Ciena COM 171779309 2,513,706 47,811
2016-02-10 2015-12-31 13F Ciena COM 171779309 2,097,162 488,818 30.39 43,390 30.20 0.1802
2015-11-06 2015-09-30 13F Ciena COM 171779309 1,608,344 -69,991 -4.17 33,326 -16.15 0.1373
2015-08-14 2015-06-30 13F/A-01 Ciena COM 171779309 1,678,335 -82,537 -4.69 39,743 16.88 0.1471
2015-08-07 2015-06-30 13F Ciena COM 171779309 1,678,335 39,743
2015-05-07 2015-03-31 13F Ciena COM 171779309 1,760,872 -58,036 -3.19 34,002 -3.69 0.1221
2015-02-11 2014-12-31 13F Ciena COM 171779309 1,818,908 1,818,908 35,305 0.1301
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.