Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionPacer Advisors, Inc.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Pacer Advisors, Inc. closes position in CIEN / Ciena Corporation

On May 6, 2026 - Pacer Advisors, Inc. filed a 13F-HR form disclosing ownership of 0 shares of Ciena Corporation (US:CIEN) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 24, 2026 disclosing 37,180 shares of Ciena Corporation. The current value of the position is $0 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)
2026-05-06 2026-03-31 13F Ciena Common Stock - Domestic 171779309 0 -100.00 0
2026-02-24 2025-12-31 13F/A-1 Ciena Common Stock - Domestic 171779309 37,180 10,153 37.57 8,695 120.85 0.0222
2026-02-04 2025-12-31 13F Ciena Common Stock - Domestic 171779309 0 -27,027 -100.00 0 -100.00
2025-10-15 2025-09-30 13F Ciena Common Stock - Domestic 171779309 27,027 24,117 828.76 3,937 1,568.22 0.0099
2025-08-12 2025-06-30 13F Ciena Common Stock - Domestic 171779309 2,910 -411 -12.38 237 18.00 0.0006
2025-05-06 2025-03-31 13F Ciena Common Stock - Domestic 171779309 3,321 -21,223 -86.47 201 -90.39 0.0005
2025-01-22 2024-12-31 13F Ciena Common Stock - Domestic 171779309 24,544 984 4.18 2,082 43.42 0.0045
2024-11-12 2024-09-30 13F Ciena Common Stock - Domestic 171779309 23,560 -1,942,854 -98.80 1,451 -98.47 0.0031
2024-08-13 2024-06-30 13F Ciena Common Stock - Domestic 171779309 1,966,414 1,941,419 7,767.23 94,742 7,565.13 0.2147
2024-05-10 2024-03-31 13F Ciena Common Stock - Domestic 171779309 24,995 1,041 4.35 1,236 14.66 0.0028
2024-01-16 2023-12-31 13F CIENA Common Stock - Domestic 171779309 23,954 9,362 64.16 1,078 56.46 0.0031
2023-11-13 2023-09-30 13F CIENA Common Stock - Domestic 171779309 14,592 -13,520 -48.09 690 -42.29 0.0026
2023-07-12 2023-06-30 13F CIENA Common Stock - Domestic 171779309 28,112 28,003 25,690.83 1,194 23,780.00 0.0048
2023-05-02 2023-03-31 13F CIENA Common Stock - Domestic 171779309 109 -28,379 -99.62 6 -99.66 0.0000
2023-02-06 2022-12-31 13F CIENA Common Stock - Domestic 171779309 28,488 28,386 27,829.41 1,452 36,200.00 0.0074
2022-10-18 2022-09-30 13F CIENA Common Stock - Domestic 171779309 102 -4 -3.77 4 -20.00 0.0000
2022-08-12 2022-06-30 13F CIENA Common Stock - Domestic 171779309 106 106 5 0.0000
2022-04-05 2022-03-31 13F CIENA Common Stock - Domestic 171779309 0 -17,046 -100.00 0 -100.00
2022-02-03 2021-12-31 13F CIENA Common Stock - Domestic 171779309 17,046 -834 -4.66 1,312 42.92 0.0135
2021-10-15 2021-09-30 13F CIENA Common Stock - Domestic 171779309 17,880 1,529 9.35 918 -1.29 0.0116
2021-07-21 2021-06-30 13F CIENA Common Stock - Domestic 171779309 16,351 -195 -1.18 930 2.76 0.0133
2021-04-05 2021-03-31 13F CIENA Common Stock 171779309 16,546 -20,878 -55.79 905 -54.25 0.0157
2021-01-20 2020-12-31 13F CIENA Common Stock 171779309 37,424 -2,747 -6.84 1,978 24.09 0.0371
2020-10-19 2020-09-30 13F CIENA Common Stock 171779309 40,171 40,171 1,594 0.0339
2020-04-23 2020-03-31 13F CIENA Common Stock 171779309 0 -51,812 -100.00 0 -100.00
2020-02-10 2019-12-31 13F CIENA Common Stock 171779309 51,812 -3,937 -7.06 2,212 1.14 0.0999
2019-10-10 2019-09-30 13F CIENA Common Stock 171779309 55,749 -1,475 -2.58 2,187 -7.09 0.0492
2019-08-12 2019-06-30 13F CIENA Common Stock 171779309 57,224 57,224 2,354 0.0576
2019-02-13 2018-12-31 13F CIENA Common Stock 171779309 0 -50,301 -100.00 0 -100.00
2018-11-14 2018-09-30 13F CIENA Common Stock 171779309 50,301 5,591 12.51 1,571 32.57 0.0591
2018-08-14 2018-06-30 13F CIENA Common Stock 171779309 44,710 4,772 11.95 1,185 14.60 0.0536
2018-05-14 2018-03-31 13F Ciena COM 171779309 39,938 5,690 16.61 1,034 44.21 0.0572
2018-02-14 2017-12-31 13F Ciena Com 171779309 34,248 14,789 76.00 717 67.52 0.0503
2017-11-08 2017-09-30 13F Ciena Com 171779309 19,459 3,419 21.32 428 6.73 0.0379
2017-08-08 2017-06-30 13F CIENA Com 171779309 16,040 1,710 11.93 401 18.64 0.0397
2017-05-09 2017-03-31 13F CIENA Com 171779309 14,330 2,590 22.06 338 17.77 0.0414
2017-02-08 2016-12-31 13F CIENA Com 171779309 11,740 -392 -3.23 287 8.71 0.0409
2016-11-10 2016-09-30 13F CIENA Com 171779309 12,132 531 4.58 264 21.10 0.0401
2016-08-12 2016-06-30 13F CIENA Com 171779309 11,601 11,601 218 0.0344
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.