A detailed history of California State Teachers Retirement System transactions in Ciena Corp stock. As of the latest transaction made, California State Teachers Retirement System holds 142,076 shares of CIEN stock, worth $9.99 Million. This represents 0.01% of its overall portfolio holdings.

Number of Shares
142,076
Previous 146,099 2.75%
Holding current value
$9.99 Million
Previous $7.22 Million 5.25%
% of portfolio
0.01%
Previous 0.01%

Shares

28 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q2 2024

Aug 14, 2024

SELL
$43.56 - $49.56 $175,241 - $199,379
-4,023 Reduced 2.75%
142,076 $6.85 Million
Q1 2024

May 15, 2024

SELL
$44.58 - $62.48 $493,857 - $692,153
-11,078 Reduced 7.05%
146,099 $7.22 Million
Q4 2023

Feb 13, 2024

SELL
$40.6 - $47.16 $361,624 - $420,054
-8,907 Reduced 5.36%
157,177 $7.07 Million
Q3 2023

Nov 14, 2023

SELL
$40.43 - $49.98 $635,963 - $786,185
-15,730 Reduced 8.65%
166,084 $7.85 Million
Q2 2023

Aug 21, 2023

SELL
$41.02 - $52.27 $173,473 - $221,049
-4,229 Reduced 2.27%
181,814 $7.73 Million
Q1 2023

May 09, 2023

SELL
$46.18 - $52.52 $187,583 - $213,336
-4,062 Reduced 2.14%
186,043 $9.77 Million
Q4 2022

Feb 14, 2023

SELL
$39.16 - $51.83 $26,237 - $34,726
-670 Reduced 0.35%
190,105 $9.69 Million
Q3 2022

Nov 18, 2022

SELL
$39.71 - $56.37 $214,394 - $304,341
-5,399 Reduced 2.75%
190,775 $7.71 Million
Q2 2022

Aug 15, 2022

SELL
$42.04 - $61.74 $119,225 - $175,094
-2,836 Reduced 1.43%
196,174 $8.97 Million
Q1 2022

May 16, 2022

SELL
$53.7 - $77.38 $888,735 - $1.28 Million
-16,550 Reduced 7.68%
199,010 $12.1 Million
Q4 2021

Feb 15, 2022

SELL
$51.73 - $77.6 $2.28 Million - $3.41 Million
-43,987 Reduced 16.95%
215,560 $16.6 Million
Q3 2021

Nov 15, 2021

SELL
$50.84 - $58.51 $147,893 - $170,205
-2,909 Reduced 1.11%
259,547 $13.3 Million
Q2 2021

Aug 16, 2021

SELL
$49.52 - $60.77 $154,601 - $189,723
-3,122 Reduced 1.18%
262,456 $14.9 Million
Q1 2021

May 18, 2021

SELL
$48.87 - $57.24 $31,130 - $36,461
-637 Reduced 0.24%
265,578 $14.5 Million
Q4 2020

Feb 16, 2021

BUY
$38.44 - $53.47 $148,186 - $206,126
3,855 Added 1.47%
266,215 $14.1 Million
Q3 2020

Nov 17, 2020

BUY
$38.82 - $60.99 $203,882 - $320,319
5,252 Added 2.04%
262,360 $10.4 Million
Q2 2020

Aug 17, 2020

BUY
$39.97 - $56.31 $88,813 - $125,120
2,222 Added 0.87%
257,108 $13.9 Million
Q1 2020

May 13, 2020

BUY
$34.5 - $44.47 $519,915 - $670,162
15,070 Added 6.28%
254,886 $10.1 Million
Q4 2019

Feb 14, 2020

SELL
$34.61 - $42.72 $246,803 - $304,636
-7,131 Reduced 2.89%
239,816 $10.2 Million
Q3 2019

Nov 15, 2019

BUY
$38.91 - $45.95 $25,952 - $30,648
667 Added 0.27%
246,947 $9.69 Million
Q2 2019

Aug 14, 2019

BUY
$33.18 - $45.49 $888,361 - $1.22 Million
26,774 Added 12.2%
246,280 $10.1 Million
Q1 2019

May 09, 2019

SELL
$32.87 - $43.68 $160,438 - $213,202
-4,881 Reduced 2.18%
219,506 $8.2 Million
Q4 2018

Feb 13, 2019

BUY
$28.24 - $34.91 $142,894 - $176,644
5,060 Added 2.31%
224,387 $7.61 Million
Q3 2018

Nov 14, 2018

SELL
$25.36 - $32.07 $1,978 - $2,501
-78 Reduced 0.04%
219,327 $6.85 Million
Q2 2018

Aug 14, 2018

BUY
$23.05 - $26.88 $19,569 - $22,821
849 Added 0.39%
219,405 $5.82 Million
Q1 2018

May 15, 2018

SELL
$21.04 - $27.49 $82,939 - $108,365
-3,942 Reduced 1.77%
218,556 $5.66 Million
Q4 2017

Feb 14, 2018

SELL
$19.57 - $22.56 $69,258 - $79,839
-3,539 Reduced 1.57%
222,498 $4.66 Million
Q3 2017

Nov 13, 2017

BUY
$21.11 - $25.99 $4.77 Million - $5.87 Million
226,037
226,037 $4.97 Million

Others Institutions Holding CIEN

About CIENA CORP


  • Ticker CIEN
  • Exchange NYSE
  • Sector Technology
  • Industry Communication Equipment
  • Shares Outstandng 148,142,000
  • Market Cap $10.4B
  • Description
  • Ciena Corporation provides network hardware, software, and services that support the transport, routing, switching, aggregation, service delivery, and management of video, data, and voice traffic on communications networks worldwide. The company's Networking Platforms segment offers hardware networking products and solutions that optimized for t...
More about CIEN
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