Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionCENTRAL TRUST Co
Latest Disclosed Ownership891 shares
Latest Disclosed Value $ 345,913
CENTRAL TRUST Co reports 12.30% decrease in ownership of CIEN / Ciena Corporation

On April 17, 2026 - CENTRAL TRUST Co filed a 13F-HR form disclosing ownership of 891 shares of Ciena Corporation (US:CIEN) valued at $345,913 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,016 shares of Ciena Corporation. This represents a change in shares of -12.30% during the quarter. The current value of the position is $552,750 USD.

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)
2026-04-17 2026-03-31 13F CIENA COM NEW 171779309 891 -125 -12.30 346 45.57 0.0037
2026-02-02 2025-12-31 13F CIENA COM NEW 171779309 1,016 -119 -10.48 238 43.64 0.0047
2025-11-06 2025-09-30 13F CIENA COM NEW 171779309 1,135 0 0.00 165 79.35 0.0035
2025-08-07 2025-06-30 13F CIENA COM NEW 171779309 1,135 0 0.00 92 35.29 0.0021
2025-04-18 2025-03-31 13F CIENA COM NEW 171779309 1,135 0 0.00 69 -29.17 0.0017
2025-01-24 2024-12-31 13F CIENA COM NEW 171779309 1,135 0 0.00 96 39.13 0.0024
2024-10-22 2024-09-30 13F CIENA COM NEW 171779309 1,135 -4 -0.35 70 27.78 0.0016
2024-08-05 2024-06-30 13F CIENA COM NEW 171779309 1,139 -1,400 -55.14 55 -56.80 0.0013
2024-04-24 2024-03-31 13F CIENA COM NEW 171779309 2,539 0 0.00 126 9.65 0.0031
2024-01-24 2023-12-31 13F CIENA COM NEW 171779309 2,539 0 0.00 114 -4.20 0.0030
2023-10-26 2023-09-30 13F CIENA COM NEW 171779309 2,539 -1,963 -43.60 120 -37.70 0.0035
2023-07-26 2023-06-30 13F CIENA COM NEW 171779309 4,502 2,000 79.94 191 45.80 0.0053
2023-04-19 2023-03-31 13F CIENA COM NEW 171779309 2,502 -210 -7.74 131 -5.07 0.0038
2023-01-26 2022-12-31 13F CIENA COM NEW 171779309 2,712 -562 -17.17 138 3.76 0.0043
2022-11-17 2022-09-30 13F/A-2 CIENA COM NEW 171779309 3,274 1,400 74.71 133 54.65 0.0046
2022-11-04 2022-09-30 13F/A-1 CIENA COM NEW 171779309 1,874 0 86 0.0015
2022-11-03 2022-09-30 13F CIENA COM NEW 171779309 1,874 0 86 0.0015
2022-08-09 2022-06-30 13F CIENA COM NEW 171779309 1,874 -41 -2.14 86 -25.86 0.0028
2022-05-03 2022-03-31 13F CIENA COMMON STOCK 171779309 1,915 -75 -3.77 116 -24.18 0.0033
2022-02-08 2021-12-31 13F CIENA COMMON STOCK 171779309 1,990 0 0.00 153 50.00 0.0043
2021-10-19 2021-09-30 13F CIENA COMMON STOCK 171779309 1,990 0 0.00 102 -9.73 0.0036
2021-07-23 2021-06-30 13F CIENA COMMON STOCK 171779309 1,990 0 0.00 113 3.67 0.0041
2021-04-23 2021-03-31 13F CIENA COMMON STOCK 171779309 1,990 -316 -13.70 109 -10.66 0.0043
2021-01-29 2020-12-31 13F CIENA COMMON STOCK 171779309 2,306 -2,933 -55.98 122 -41.35 0.0050
2020-10-22 2020-09-30 13F CIENA COMMON STOCK 171779309 5,239 -11,955 -69.53 208 -77.66 0.0094
2020-07-14 2020-06-30 13F CIENA COMMON STOCK 171779309 17,194 15,951 1,283.27 931 1,800.00 0.0467
2020-04-17 2020-03-31 13F CIENA COMMON STOCK 171779309 1,243 -487 -28.15 49 -33.78 0.0030
2020-01-21 2019-12-31 13F CIENA COMMON STOCK 171779309 1,730 745 75.63 74 89.74 0.0038
2019-10-28 2019-09-30 13F CIENA COMMON STOCK 171779309 985 985 39 0.0022
2017-10-17 2017-09-30 13F CIENA COMMON STOCK 171779309 0 -837 -100.00 0 -100.00
2017-07-14 2017-06-30 13F CIENA COMMON STOCK 171779309 837 -1,163 -58.15 21 -55.32 0.0014
2017-04-06 2017-03-31 13F CIENA COMMON STOCK 171779309 2,000 0 0.00 47 -4.08 0.0031
2017-01-24 2016-12-31 13F CIENA COMMON STOCK 171779309 2,000 -367 -15.50 49 -5.77 0.0034
2016-10-24 2016-09-30 13F CIENA COMMON STOCK 171779309 2,367 0 0.00 52 18.18 0.0038
2016-08-08 2016-06-30 13F CIENA COMMON STOCK 171779309 2,367 -118 -4.75 44 -6.38 0.0033
2016-04-11 2016-03-31 13F CIENA COMMON STOCK 171779309 2,485 1,804 264.90 47 235.71 0.0037
2016-01-21 2015-12-31 13F CIENA COMMON STOCK 171779309 681 681 14 0.0012
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.