Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionSilvercrest Asset Management Group Llc
Latest Disclosed Ownership3,018 shares
Latest Disclosed Value $ 1,171,678
Silvercrest Asset Management Group Llc reports 92.50% decrease in ownership of CIEN / Ciena Corporation

On May 15, 2026 - Silvercrest Asset Management Group Llc filed a 13F-HR form disclosing ownership of 3,018 shares of Ciena Corporation (US:CIEN) valued at $1,171,678 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 40,260 shares of Ciena Corporation. This represents a change in shares of -92.50% during the quarter. The current value of the position is $1,872,277 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 CORP COM COM 171779309 3,018 -37,242 -92.50 1,172 -87.56 0.0085
2026-02-17 2025-12-31 13F CIENA CORP COM COM 171779309 40,260 -30,569 -43.16 9,416 -8.74 0.0647
2025-11-14 2025-09-30 13F CIENA CORP COM COM 171779309 70,829 -50,982 -41.85 10,318 4.15 0.0683
2025-08-14 2025-06-30 13F CIENA COM NEW 171779309 121,811 54,485 80.93 9,907 143.51 0.0665
2025-05-15 2025-03-31 13F CIENA COM NEW 171779309 67,326 -12,372 -15.52 4,069 -39.81 0.0291
2025-02-14 2024-12-31 13F CIENA COM NEW 171779309 79,698 65,569 464.07 6,759 676.90 0.0452
2024-11-14 2024-09-30 13F CIENA CORP COM COM 171779309 14,129 3,540 33.43 870 70.59 0.0059
2024-08-15 2024-06-30 13F/A-1 CIENA CORP COM COM 171779309 10,589 2,083 24.49 510 21.43 0.0035
2024-08-14 2024-06-30 13F CIENA CORP COM COM 171779309 21,178 12,672 1,020 0.0023
2024-05-15 2024-03-31 13F CIENA CORP COM COM 171779309 8,506 -548 -6.05 421 3.19 0.0028
2024-02-14 2023-12-31 13F CIENA CORP COM COM 171779309 9,054 314 3.59 408 -1.45 0.0029
2023-11-14 2023-09-30 13F CIENA CORP COM COM 171779309 8,740 971 12.50 413 25.15 0.0031
2023-08-14 2023-06-30 13F CIENA CORP COM COM 171779309 7,769 3,375 76.81 330 43.48 0.0024
2023-05-15 2023-03-31 13F CIENA CORP COM COM 171779309 4,394 4,394 231 0.0018
2020-11-16 2020-09-30 13F CIENA CORP COM COM 171779309 0 -4,959 -100.00 0 -100.00
2020-08-14 2020-06-30 13F CIENA CORP COM COM 171779309 4,959 4,959 269 0.0024
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.