Ciena Corporation
MX ˙ BMV ˙ US1717793095
SecurityMX:CIEN / Ciena Corporation
InstitutionUs Bancorp \de\
Latest Disclosed Ownership13,845 shares
Latest Disclosed Value $ 5,375,044
Us Bancorp \de\ reports 3.45% increase in ownership of CIEN / Ciena Corporation

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 13,845 shares of Ciena Corporation (MX:CIEN) valued at $5,375,044 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 13,383 shares of Ciena Corporation. This represents a change in shares of 3.45% 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)
2026-05-14 2026-03-31 13F CIENA COM NEW 171779309 13,845 462 3.45 5,375 71.78 0.0020
2026-01-30 2025-12-31 13F CIENA COM NEW 171779309 13,383 2,634 24.50 3,130 99.94 0.0037
2025-11-12 2025-09-30 13F CIENA COM NEW 171779309 10,749 331 3.18 1,566 84.77 0.0019
2025-07-24 2025-06-30 13F CIENA COM NEW 171779309 10,418 -560 -5.10 847 27.75 0.0011
2025-05-08 2025-03-31 13F CIENA COM NEW 171779309 10,978 519 4.96 663 -25.25 0.0009
2025-02-05 2024-12-31 13F CIENA COM NEW 171779309 10,459 152 1.47 887 39.91 0.0012
2024-10-28 2024-09-30 13F CIENA COM NEW 171779309 10,307 244 2.42 635 30.99 0.0008
2024-08-07 2024-06-30 13F CIENA COM NEW 171779309 10,063 -7,324 -42.12 485 -43.66 0.0007
2024-05-08 2024-03-31 13F CIENA COM NEW 171779309 17,387 -1,338 -7.15 860 2.02 0.0012
2024-02-09 2023-12-31 13F CIENA COM NEW 171779309 18,725 -23,562 -55.72 843 -57.86 0.0012
2023-11-03 2023-09-30 13F CIENA COM NEW 171779309 42,287 -3,161 -6.96 1,998 3.47 0.0033
2023-08-10 2023-06-30 13F CIENA COM NEW 171779309 45,448 -3,121 -6.43 1,931 -24.27 0.0031
2023-05-09 2023-03-31 13F CIENA COMMON STOCK 171779309 48,569 -8,274 -14.56 2,551 -11.98 0.0043
2023-02-13 2022-12-31 13F CIENA COMMON STOCK 171779309 56,843 -7,452 -11.59 2,898 11.42 0.0051
2022-10-27 2022-09-30 13F CIENA COMMON STOCK 171779309 64,295 -9,321 -12.66 2,600 -22.69 0.0054
2022-08-01 2022-06-30 13F CIENA COMMON STOCK 171779309 73,616 -5,214 -6.61 3,363 -29.61 0.0065
2022-05-11 2022-03-31 13F CIENA COMMON STOCK 171779309 78,830 3,751 5.00 4,778 -17.32 0.0080
2022-02-11 2021-12-31 13F CIENA COMMON STOCK 171779309 75,079 1,033 1.40 5,779 52.04 0.0091
2021-11-10 2021-09-30 13F CIENA COMMON STOCK 171779309 74,046 2,558 3.58 3,801 -6.56 0.0071
2021-08-05 2021-06-30 13F CIENA COMMON STOCK 171779309 71,488 1,820 2.61 4,068 6.72 0.0076
2021-04-28 2021-03-31 13F CIENA COMMON STOCK 171779309 69,668 5,281 8.20 3,812 12.05 0.0077
2021-02-04 2020-12-31 13F CIENA COMMON STOCK 171779309 64,387 2,319 3.74 3,402 38.18 0.0073
2020-11-10 2020-09-30 13F CIENA COMMON STOCK 171779309 62,068 -1,003 -1.59 2,462 -27.93 0.0060
2020-08-07 2020-06-30 13F CIENA COMMON STOCK 171779309 63,071 1,692 2.76 3,416 39.77 0.0090
2020-05-13 2020-03-31 13F CIENA COMMON STOCK 171779309 61,379 40,568 194.94 2,444 174.92 0.0076
2020-02-04 2019-12-31 13F CIENA COMMON STOCK 171779309 20,811 -2,273 -9.85 889 -1.77 0.0023
2019-11-08 2019-09-30 13F CIENA COMMON STOCK 171779309 23,084 316 1.39 905 -3.31 0.0025
2019-08-13 2019-06-30 13F CIENA COMMON STOCK 171779309 22,768 12,539 122.58 936 144.39 0.0026
2019-05-08 2019-03-31 13F CIENA COMMON STOCK 171779309 10,229 -4,238 -29.29 383 -21.84 0.0011
2019-02-13 2018-12-31 13F CIENA COMMON STOCK 171779309 14,467 905 6.67 490 15.57 0.0016
2018-10-31 2018-09-30 13F CIENA COMMON STOCK 171779309 13,562 2,197 19.33 424 40.86 0.0012
2018-08-08 2018-06-30 13F CIENA COMMON STOCK 171779309 11,365 110 0.98 301 3.08 0.0009
2018-05-08 2018-03-31 13F CIENA COMMON STOCK 171779309 11,255 -1,607 -12.49 292 8.55 0.0009
2018-02-02 2017-12-31 13F CIENA COMMON STOCK 171779309 12,862 -6,575 -33.83 269 -37.00 0.0008
2017-11-13 2017-09-30 13F CIENA COMMON STOCK 171779309 19,437 -9,450 -32.71 427 -40.86 0.0014
2017-07-19 2017-06-30 13F CIENA COMMON STOCK 171779309 28,887 -41,875 -59.18 722 -56.79 0.0024
2017-05-03 2017-03-31 13F CIENA COMMON STOCK 171779309 70,762 -118,905 -62.69 1,671 -63.91 0.0057
2017-02-08 2016-12-31 13F CIENA COMMON STOCK 171779309 189,667 -17,682 -8.53 4,630 2.43 0.0167
2016-11-04 2016-09-30 13F CIENA COMMON STOCK 171779309 207,349 5,752 2.85 4,520 19.55 0.0168
2016-08-10 2016-06-30 13F CIENA COMMON STOCK 171779309 201,597 22,641 12.65 3,781 11.11 0.0144
2016-05-13 2016-03-31 13F CIENA COMMON STOCK 171779309 178,956 41,960 30.63 3,403 20.08 0.0134
2016-02-10 2015-12-31 13F CIENA COMMON STOCK 171779309 136,996 30,689 28.87 2,834 28.70 0.0114
2015-11-16 2015-09-30 13F CIENA COMMON STOCK 171779309 106,307 92,624 676.93 2,202 579.63 0.0092
2015-08-10 2015-06-30 13F CIENA COMMON STOCK 171779309 13,683 -1,130 -7.63 324 13.29 0.0013
2015-05-08 2015-03-31 13F CIENA COMMON STOCK 171779309 14,813 1,760 13.48 286 13.04 0.0011
2015-02-13 2014-12-31 13F CIENA COMMON STOCK 171779309 13,053 -3,849 -22.77 253 -10.60 0.0010
2014-11-14 2014-09-30 13F CIENA COMMON STOCK 171779309 16,902 -2,340 -12.16 283 -32.13 0.0011
2014-08-14 2014-06-30 13F CIENA COMMON STOCK 171779309 19,242 -671 -3.37 417 -7.95 0.0017
2014-05-14 2014-03-31 13F CIENA COMMON STOCK 171779309 19,913 4,721 31.08 453 24.45 0.0019
2014-02-13 2013-12-31 13F CIENA COMMON STOCK 171779309 15,192 4,878 47.29 364 41.09 0.0015
2013-11-07 2013-09-30 13F CIENA COMMON STOCK 171779309 10,314 -323 -3.04 258 24.64 0.0011
2013-08-09 2013-06-30 13F CIENA COMMON STOCK 171779309 10,637 10,637 207 0.0009
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.