Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionAxa S.a.
Latest Disclosed Ownership3,327 shares
Latest Disclosed Value $ 1,291,641
Axa S.a. reports 51.98% decrease in ownership of CIEN / Ciena Corporation

On May 15, 2026 - Axa S.a. filed a 13F-HR form disclosing ownership of 3,327 shares of Ciena Corporation (US:CIEN) valued at $1,291,641 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,928 shares of Ciena Corporation. This represents a change in shares of -51.98% during the quarter. The current value of the position is $2,063,971 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 3,327 -3,601 -51.98 1,292 -20.31 0.4553
2026-02-13 2025-12-31 13F CIENA COM NEW 171779309 6,928 -8,288 -54.47 1,620 -26.90 0.7666
2025-11-14 2025-09-30 13F CIENA COM NEW 171779309 15,216 -334,165 -95.64 2,217 -92.20 1.1115
2025-08-14 2025-06-30 13F CIENA COM NEW 171779309 349,381 -119,716 -25.52 28,415 0.24 0.0816
2025-05-15 2025-03-31 13F CIENA COM NEW 171779309 469,097 -10,838 -2.26 28,348 -30.36 0.0931
2025-02-14 2024-12-31 13F CIENA COM NEW 171779309 479,935 -54,187 -10.15 40,703 23.73 0.1236
2024-11-14 2024-09-30 13F CIENA COM NEW 171779309 534,122 -33,968 -5.98 32,897 20.19 0.0974
2025-02-25 2024-06-30 13F/A-1 CIENA COM NEW 171779309 568,090 -73,588 -11.47 27,371 -13.74 0.0814
2024-08-14 2024-06-30 13F CIENA COM NEW 171779309 568,090 -73,588 27,371 0.0814
2024-05-15 2024-03-31 13F CIENA COM NEW 171779309 641,678 -203,136 -24.05 31,731 -16.55 0.0951
2024-07-16 2023-12-31 13F/A-1 CIENA COM NEW 171779309 844,814 -109,110 -11.44 38,025 -15.65 0.1226
2024-02-14 2023-12-31 13F CIENA COM NEW 171779309 844,814 -109,110 38,025 0.0745
2023-11-14 2023-09-30 13F CIENA COM NEW 171779309 953,924 -64,315 -6.32 45,082 4.20 0.1585
2023-08-14 2023-06-30 13F CIENA COM NEW 171779309 1,018,239 49,811 5.14 43,265 -14.94 0.1438
2023-05-15 2023-03-31 13F CIENA COM NEW 171779309 968,428 92,491 10.56 50,862 13.90 0.1749
2023-02-14 2022-12-31 13F CIENA COM NEW 171779309 875,937 205,757 30.70 44,655 64.81 0.1611
2023-02-14 2022-09-30 13F/A-1 Ciena COM NEW 171779309 670,180 141,470 26.76 27,095 12.14 0.1066
2022-11-14 2022-09-30 13F Ciena COM NEW 171779309 670,180 141,470 27,096 0.1066
2023-02-14 2022-06-30 13F/A-1 Ciena COM NEW 171779309 528,710 13,660 2.65 24,162 -22.62 0.0895
2022-08-15 2022-06-30 13F Ciena COM NEW 171779309 528,710 13,660 24,162 0.0895
2023-02-14 2022-03-31 13F/A-1 Ciena COM NEW 171779309 515,050 58,750 12.88 31,227 -11.09 0.0888
2022-05-13 2022-03-31 13F Ciena COM NEW 171779309 515,050 58,750 31,227 0.0888
2022-02-14 2021-12-31 13F Ciena COM NEW 171779309 456,300 0 0.00 35,121 49.89 0.0898
2021-11-15 2021-09-30 13F Ciena COM NEW 171779309 456,300 -45,900 -9.14 23,431 -17.99 0.0658
2021-08-13 2021-06-30 13F/A-1 Ciena COM NEW 171779309 502,200 44,300 9.67 28,570 14.02 0.0806
2021-08-13 2021-06-30 13F Ciena COM NEW 171779309 502,200 44,300 28,570 0.0482
2021-05-14 2021-03-31 13F Ciena COM NEW 171779309 457,900 0 0.00 25,056 3.54 0.0763
2021-02-12 2020-12-31 13F Ciena COM NEW 171779309 457,900 14,396 3.25 24,200 37.48 0.0760
2021-02-11 2020-09-30 13F/A-1 Ciena COM NEW 171779309 443,504 115,504 35.21 17,602 -0.92 0.0636
2020-11-13 2020-09-30 13F Ciena COM NEW 171779309 443,504 115,504 17,602 35,136.3856
2021-02-12 2020-06-30 13F/A-1 CIENA COM NEW 171779309 328,000 41,800 14.61 17,765 55.92 0.0700
2020-08-14 2020-06-30 13F CIENA COM NEW 171779309 328,000 41,800 17,765 70,058.8700
2021-02-12 2020-03-31 13F/A-2 CIENA COM NEW 171779309 286,200 -9,600 -3.25 11,394 -9.77 0.0569
2020-06-15 2020-03-31 13F/A-1 CIENA COM NEW 171779309 286,200 0 11,394 0.0570
2020-05-15 2020-03-31 13F CIENA COM NEW 171779309 286,200 -9,600 11,394 31,686.9100
2021-02-12 2019-12-31 13F/A-1 CIENA COM NEW 171779309 295,800 198,600 204.32 12,628 231.18 0.0514
2020-02-18 2019-12-31 13F CIENA COM NEW 171779309 295,800 198,600 12,628 51,416.8983
2021-02-12 2019-09-30 13F/A-1 CIENA COM NEW 171779309 97,200 -124,100 -56.08 3,813 -58.11 0.0152
2019-11-14 2019-09-30 13F CIENA COM NEW 171779309 97,200 -124,100 3,813 15,195.0477
2021-02-12 2019-06-30 13F/A-1 CIENA COM NEW 171779309 221,300 -95,500 -30.15 9,102 -23.06 0.0355
2019-08-13 2019-06-30 13F CIENA COM NEW 171779309 221,300 -95,500 9,102 35,694.2156
2019-05-14 2019-03-31 13F CIENA COM NEW 171779309 316,800 316,800 11,830 0.0462
2019-02-13 2018-12-31 13F CIENA COM NEW 171779309 0 -65,400 -100.00 0 -100.00
2018-11-08 2018-09-30 13F CIENA COM NEW 171779309 65,400 8,800 15.55 2,043 36.20 0.0075
2018-08-13 2018-06-30 13F CIENA COM NEW 171779309 56,600 -1,400 -2.41 1,500 -0.13 0.0057
2018-05-14 2018-03-31 13F CIENA COM NEW 171779309 58,000 58,000 1,502 0.0060
2017-02-13 2016-12-31 13F CIENA COM NEW 171779309 0 -33,400 -100.00 0 -100.00
2016-11-10 2016-09-30 13F CIENA COM NEW 171779309 33,400 -300 -0.89 728 15.19 0.0032
2016-08-11 2016-06-30 13F CIENA COM NEW 171779309 33,700 -355,300 -91.34 632 -91.46 0.0028
2016-05-13 2016-03-31 13F CIENA COM NEW 171779309 389,000 -405,610 -51.05 7,399 -55.00 0.0332
2016-02-12 2015-12-31 13F CIENA COM NEW 171779309 794,610 794,610 0.00 16,441 0.0718
2014-11-13 2014-09-30 13F CIENA COM NEW 171779309 0 -182,000 -100.00 0 -100.00
2014-08-13 2014-06-30 13F CIENA COM NEW 171779309 182,000 -226,233 -55.42 3,942 -57.54 0.0164
2014-05-13 2014-03-31 13F CIENA COM NEW 171779309 408,233 -30,763 -7.01 9,283 -11.63 0.0404
2014-02-13 2013-12-31 13F CIENA COM NEW 171779309 438,996 -20,705 -4.50 10,505 -8.52 0.0470
2013-11-13 2013-09-30 13F CIENA COM NEW 171779309 459,701 0 0.00 11,483 28.63 0.0566
2013-08-12 2013-06-30 13F CIENA COM NEW 171779309 459,701 459,701 8,927 0.0474
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.