시에나 주식회사
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionCI Private Wealth, LLC
Latest Disclosed Ownership34,280 shares
Latest Disclosed Value $ 13,237,596
CI Private Wealth, LLC reports 40.99% increase in ownership of CIEN / Ciena Corporation

On May 15, 2026 - CI Private Wealth, LLC filed a 13F-HR form disclosing ownership of 34,280 shares of Ciena Corporation (US:CIEN) valued at $13,308,524 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 9, 2026 disclosing 24,313 shares of Ciena Corporation. This represents a change in shares of 40.99% during the quarter. The current value of the position is $16,735,839 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)
2026-05-15 2026-03-31 13F CIENA COM NEW 171779309 34,280 9,967 40.99 13,238 132.80 0.0184
2026-03-09 2025-12-31 13F/A-1 CIENA COM NEW 171779309 24,313 14,812 155.90 5,686 310.84 0.0077
2026-02-19 2025-12-31 13F CIENA COM NEW 171779309 2,870,677 2,861,176 5,685 0.0021
2025-11-14 2025-09-30 13F CIENA COM NEW 171779309 9,501 1,034 12.21 1,384 101.16 0.0022
2025-09-26 2025-06-30 13F/A-1 CIENA COM NEW 171779309 8,467 -7,956 -48.44 689 -30.65 0.0009
2025-08-15 2025-06-30 13F CIENA COM NEW 171779309 8,467 -7,956 689 0.0006
2025-05-14 2025-03-31 13F CIENA COM NEW 171779309 16,423 -3,406 -17.18 992 -40.99 0.0016
2025-02-10 2024-12-31 13F CIENA COM NEW 171779309 19,829 233 1.19 1,682 39.39 0.0028
2024-11-12 2024-09-30 13F CIENA COM NEW 171779309 19,596 3,743 23.61 1,207 58.06 0.0019
2024-08-13 2024-06-30 13F CIENA COM NEW 171779309 15,853 -470 -2.88 764 -5.45 0.0013
2024-05-09 2024-03-31 13F CIENA COM NEW 171779309 16,323 -12,061 -42.49 807 -36.81 0.0014
2024-02-09 2023-12-31 13F CIENA COM NEW 171779309 28,384 3,415 13.68 1,278 8.22 0.0023
2023-11-03 2023-09-30 13F CIENA COM NEW 171779309 24,969 4,047 19.34 1,180 32.88 0.0027
2023-08-10 2023-06-30 13F CIENA COM NEW 171779309 20,922 11,633 125.23 889 82.34 0.0021
2023-05-15 2023-03-31 13F CIENA COM NEW 171779309 9,289 9,289 488 0.0013
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.