Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionPacifica Partners Inc.
Latest Disclosed Ownership11,950 shares
Latest Disclosed Value $ 4,639,348
Pacifica Partners Inc. reports 1.48% decrease in ownership of CIEN / Ciena Corporation

On April 9, 2026 - Pacifica Partners Inc. filed a 13F-HR form disclosing ownership of 11,950 shares of Ciena Corporation (US:CIEN) valued at $4,639,348 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 12,130 shares of Ciena Corporation. This represents a change in shares of -1.48% during the quarter. The current value of the position is $6,400,778 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)
2026-04-09 2026-03-31 13F CIENA COM NEW 171779309 11,950 -180 -1.48 4,639 55.46 1.5403
2026-01-09 2025-12-31 13F CIENA COM NEW 171779309 12,130 -4,225 -25.83 2,985 20.32 1.3262
2025-10-09 2025-09-30 13F CIENA COM NEW 171779309 16,355 -14,270 -46.60 2,480 -1.35 0.8874
2025-07-14 2025-06-30 13F CIENA COM NEW 171779309 30,625 -88 -0.29 2,515 45.74 1.0207
2025-04-08 2025-03-31 13F CIENA COM NEW 171779309 30,713 -2,982 -8.85 1,726 -38.46 0.7877
2025-01-14 2024-12-31 13F CIENA COM NEW 171779309 33,695 -1,905 -5.35 2,804 27.87 1.2116
2024-10-07 2024-09-30 13F CIENA COM NEW 171779309 35,600 -160 -0.45 2,193 30.71 0.9054
2024-07-11 2024-06-30 13F CIENA COM NEW 171779309 35,760 -300 -0.83 1,678 -6.52 0.7202
2024-04-12 2024-03-31 13F CIENA COM NEW 171779309 36,060 -20 -0.06 1,794 8.73 0.7952
2024-01-08 2023-12-31 13F CIENA COM NEW 171779309 36,080 0 0.00 1,651 4.50 0.8122
2023-10-10 2023-09-30 13F CIENA COM NEW 171779309 36,080 -30 -0.08 1,579 1.94 0.8594
2023-07-17 2023-06-30 13F CIENA COM NEW 171779309 36,110 -20 -0.06 1,550 -14.70 0.8764
2023-04-11 2023-03-31 13F CIENA COM NEW 171779309 36,130 36,030 36,030.00 1,816 45,300.00 1.0936
2023-01-19 2022-12-31 13F/A-1 CIENA COM NEW 171779309 100 0 0.00 5 0.00 0.0034
2023-01-12 2022-12-31 13F CIENA COM NEW 171779309 100 0 5 3.3954
2022-10-14 2022-09-30 13F CIENA COM NEW 171779309 100 0 0.00 4 -20.00 0.0029
2022-07-22 2022-06-30 13F CIENA COM NEW 171779309 100 0 0.00 5 -28.57 0.0034
2022-04-12 2022-03-31 13F CIENA COM NEW 171779309 100 0 0.00 7 0.00 0.0046
2022-01-13 2021-12-31 13F CIENA COM NEW 171779309 100 0 0.00 7 40.00 0.0046
2021-10-07 2021-09-30 13F CIENA COM NEW 171779309 100 100 5 0.0036
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.