Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionAperio Group, LLC
Latest Disclosed Ownership339,933 shares
Latest Disclosed Value $ 17,966,000
Aperio Group, LLC reports 11.26% decrease in ownership of CIEN / Ciena Corporation

On February 5, 2021 - Aperio Group, LLC filed a 13F-HR form disclosing ownership of 339,933 shares of Ciena Corporation (US:CIEN) valued at $17,965,459 USD as of December 31, 2020. The entity filed a previous 13F-HR on November 6, 2020 disclosing 383,084 shares of Ciena Corporation. This represents a change in shares of -11.26% during the quarter. The current value of the position is $165,958,690 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)
2021-02-05 2020-12-31 13F CIENA COM NEW 171779309 339,933 -43,151 -11.26 17,966 18.16 0.0532
2020-11-06 2020-09-30 13F CIENA COM NEW 171779309 383,084 -35,874 -8.56 15,205 -32.99 0.0514
2020-08-13 2020-06-30 13F CIENA COM NEW 171779309 418,958 4,475 1.08 22,691 37.51 0.0838
2020-05-05 2020-03-31 13F CIENA COM NEW 171779309 414,483 -11,468 -2.69 16,501 -9.26 0.0729
2020-02-13 2019-12-31 13F CIENA COM NEW 171779309 425,951 -22,841 -5.09 18,184 3.28 0.0653
2019-11-06 2019-09-30 13F CIENA COM 171779309 448,792 -88,899 -16.53 17,606 -20.39 0.0696
2019-07-30 2019-06-30 13F CIENA COM NEW 171779309 537,691 -105,782 -16.44 22,115 -7.96 0.0903
2019-05-13 2019-03-31 13F CIENA COM NEW 171779309 643,473 -134,878 -17.33 24,027 -8.97 0.1037
2019-05-06 2018-12-31 13F/A-1 CIENA COM NEW 171779309 778,351 -55,745 -6.68 26,394 1.29 0.1332
2019-02-14 2018-12-31 13F CIENA COM NEW 171779309 779,456 -54,640 26,431
2019-05-06 2018-09-30 13F/A-1 CIENA COM NEW 171779309 834,096 391,506 88.46 26,057 122.08 0.1150
2018-10-17 2018-09-30 13F CIENA CORPORATION COM COMMON 171779309 834,096 391,506 26,057
2019-05-06 2018-06-30 13F/A-1 CIENA COM NEW 171779309 442,590 357,326 419.08 11,733 431.39 0.0561
2018-07-30 2018-06-30 13F CIENA CORPORATION COM COMMON 171779309 442,590 357,326 11,733
2019-05-01 2018-03-31 13F/A-1 CIENA COM NEW 171779309 85,264 55,432 185.81 2,208 253.85 0.0110
2018-05-08 2018-03-31 13F CIENA CORPORATION COM COMMON 171779309 85,264 55,432 2,208
2019-05-01 2017-12-31 13F/A-1 CIENA COM NEW 171779309 29,832 4,851 19.42 624 13.66 0.0032
2018-02-02 2017-12-31 13F CIENA CORPORATION COM COMMON 171779309 29,832 4,851 624
2019-05-01 2017-09-30 13F/A-1 CIENA COM NEW 171779309 24,981 -1,256 -4.79 549 -16.31 0.0031
2017-10-25 2017-09-30 13F CIENA CORPORATION COM COMMON 171779309 24,981 -1,256 549
2019-04-22 2017-06-30 13F/A-1 CIENA COM NEW 171779309 26,237 1,742 7.11 656 13.49 0.0040
2017-07-18 2017-06-30 13F CIENA CORPORATION COM COMMON 171779309 26,237 1,742 656
2019-04-22 2017-03-31 13F/A-1 CIENA COM NEW 171779309 24,495 2,555 11.65 578 7.84 0.0040
2017-05-05 2017-03-31 13F CIENA CORPORATION COM COMMON 171779309 24,495 2,555 578
2019-04-22 2016-12-31 13F/A-1 CIENA COM NEW 171779309 21,940 2,238 11.36 536 24.65 0.0041
2017-02-14 2016-12-31 13F CIENA CORPORATION COM COMMON 171779309 21,940 2,238 536
2019-04-12 2016-09-30 13F/A-1 CIENA COM NEW 171779309 19,702 639 3.35 430 20.45 0.0031
2016-11-01 2016-09-30 13F CIENA CORPORATION COM COMMON 171779309 19,702 639 430
2019-04-12 2016-06-30 13F/A-1 CIENA COM NEW 171779309 19,063 -404 -2.08 357 -3.51 0.0028
2016-08-12 2016-06-30 13F CIENA CORPORATION COM COMMON 171779309 19,063 -404 357
2019-04-12 2016-03-31 13F/A-1 CIENA COM NEW 171779309 19,467 1,124 6.13 370 -2.63 0.0032
2016-04-28 2016-03-31 13F CIENA CORPORATION COM COMMON 171779309 19,467 1,124 370
2016-01-21 2015-12-31 13F CIENA CORPORATION COM COMMON 171779309 18,343 582 3.28 380 3.26 0.0035
2015-10-19 2015-09-30 13F CIENA CORPORATION COM COMMON 171779309 17,761 3,065 20.86 368 5.75 0.0037
2015-07-29 2015-06-30 13F CIENA CORPORATION COM COMMON 171779309 14,696 31 0.21 348 22.97 0.0036
2015-04-29 2015-03-31 13F CIENA CORPORATION COM COMMON 171779309 14,665 14,665 0.00 283 0.0032
2015-01-30 2014-12-31 13F CIENA CORPORATION COM COMMON 171779309 0 -13,330 -100.00 0 -100.00
2014-10-21 2014-09-30 13F CIENA CORPORATION COM COMMON 171779309 13,330 439 3.41 223 -20.07 0.0030
2014-07-23 2014-06-30 13F CIENA CORPORATION COM COMMON 171779309 12,891 -1,171 -8.33 279 -12.81 0.0041
2014-04-25 2014-03-31 13F CIENA CORPORATION COM COMMON 171779309 14,062 320 -4.48 0.0045
2014-01-30 2013-12-31 13F CIENA CORPORATION COM COMMON 171779309 335 3.72 0.0052
2013-10-24 2013-09-30 13F CIENA CORPORATION COM COMMON 171779309 12,930 1,072 9.04 323 40.43 0.0062
2013-07-19 2013-06-30 13F CIENA CORPORATION COM COMMON 171779309 11,858 230
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.