CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

TEACHER RETIREMENT SYSTEM OF TEXAS's Holding History (CIK: 0000796848)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 40,102 Value ($000) $9,379 Avg Close $194.00 Range $143.19 - $248.00
Q3 2025
Shares 37,277 Value ($000) $5,430 Avg Close $101.84 Range $76.89 - $146.53
Q2 2025
Shares 41,968 Value ($000) $3,413 Avg Close $71.73 Range $49.21 - $86.21
Q1 2025
Shares 44,641 Value ($000) $2,698 Avg Close $79.05 Range $58.04 - $101.44
Q4 2024
Shares 36,968 Value ($000) $3 Avg Close $71.76 Range $59.60 - $91.82
Q3 2024
Shares 21,356 Value ($000) $1 Avg Close $52.69 Range $44.89 - $63.06
Q2 2024
Shares 16,756 Value ($000) $1 Avg Close $47.46 Range $43.30 - $53.58
Q1 2024
Shares 25,487 Value ($000) $1 Avg Close $52.75 Range $44.22 - $63.24
Q4 2023
Shares 47,229 Value ($000) $2 Avg Close $44.09 Range $39.94 - $48.36
Q3 2023
Shares 39,978 Value ($000) $2 Avg Close $44.08 Range $40.10 - $50.72
Q2 2023
Shares 28,276 Value ($000) $1 Avg Close $45.54 Range $40.84 - $52.67
Q1 2023
Shares 40,811 Value ($000) $2 Avg Close $49.92 Range $45.83 - $54.25
Q4 2022
Shares 46,647 Value ($000) $2 Avg Close $45.21 Range $38.33 - $52.51
Q3 2022
Shares 41,118 Value ($000) $1,662 Avg Close $48.05 Range $39.44 - $56.38
Q2 2022
Shares 25,265 Value ($000) $1,155 Avg Close $51.84 Range $41.63 - $61.78
Q1 2022
Shares 31,636 Value ($000) $1,918 Avg Close $65.45 Range $53.29 - $77.38
Q4 2021
Shares 29,982 Value ($000) $2,308 Avg Close $61.70 Range $51.01 - $78.28
Q3 2021
Shares 25,003 Value ($000) $1,284 Avg Close $55.54 Range $50.34 - $58.85
Q2 2021
Shares 20,165 Value ($000) $1,147 Avg Close $55.12 Range $49.51 - $61.09
Q1 2021
Shares 17,143 Value ($000) $938 Avg Close $53.81 Range $47.52 - $57.57
Q4 2020
Shares 13,990 Value ($000) $739 Avg Close $44.43 Range $38.03 - $54.05
Q3 2020
Shares 8,763 Value ($000) $348 Avg Close $52.62 Range $38.20 - $61.52
Q2 2020
Shares 5,043 Value ($000) $273 Avg Close $49.71 Range $38.00 - $57.19
Q3 2018
Shares 16,912 Value ($000) $528 Avg Close $28.02 Range $25.19 - $32.33
Q2 2018
Shares 29,272 Value ($000) $776 Avg Close $25.40 Range $22.99 - $27.10
Q1 2018
Shares 31,586 Value ($000) $818 Avg Close $23.53 Range $20.71 - $27.73
Q4 2017
Shares 47,620 Value ($000) $997 Avg Close $21.20 Range $19.40 - $22.63
Q3 2017
Shares 11,673 Value ($000) $256 Avg Close $23.93 Range $20.86 - $26.92
Q2 2017
Shares 11,289 Value ($000) $282 Avg Close $23.96 Range $21.43 - $27.98
Q1 2017
Shares 10,989 Value ($000) $259 Avg Close $24.52 Range $22.73 - $26.84
Q4 2016
Shares 10,989 Value ($000) $268 Avg Close $21.85 Range $18.94 - $25.19
Q3 2016
Shares 14,726 Value ($000) $321 Avg Close $20.85 Range $17.59 - $23.60
Q2 2016
Shares 19,137 Value ($000) $359 Avg Close $18.11 Range $15.62 - $21.87
Q1 2016
Shares 15,749 Value ($000) $300 Avg Close $18.47 Range $16.32 - $21.14
Q4 2015
Shares 11,163 Value ($000) $231 Avg Close $22.97 Range $18.98 - $25.46
Q3 2015
Shares 15,174 Value ($000) $314 Avg Close $23.24 Range $17.97 - $26.50
Q2 2015
Shares 4,142 Value ($000) $98 Avg Close $22.84 Range $18.75 - $26.20
Q1 2015
Shares 3,230 Value ($000) $62 Avg Close $19.93 Range $17.86 - $21.47
Q4 2014
Shares 3,198 Value ($000) $62 Avg Close $16.70 Range $13.77 - $20.14
Q3 2014
Shares 3,752 Value ($000) $63 Avg Close $19.60 Range $16.66 - $22.46
Q2 2014
Shares 382,387 Value ($000) $8,283 Avg Close $20.54 Range $18.00 - $24.21
Q1 2014
Shares 382,280 Value ($000) $8,693 Avg Close $23.52 Range $21.41 - $27.16
Q4 2013
Shares 404,444 Value ($000) $9,678 Avg Close $23.81 Range $20.93 - $27.94
Q3 2013
Shares 1,163,627 Value ($000) $29,067 Avg Close $22.53 Range $19.37 - $26.17
Q2 2013
Shares 656,913 Value ($000) $12,757 Avg Close $16.65 Range $14.14 - $20.60