CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

SIT INVESTMENT ASSOCIATES INC's Holding History (CIK: 0000769317)

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

Q4 2025

Shares 46,775 Value ($000) $11 Avg Close $194.00 Range $143.19 - $248.00

Q3 2025

Shares 46,775 Value ($000) $7 Avg Close $101.84 Range $76.89 - $146.53

Q2 2025

Shares 46,775 Value ($000) $4 Avg Close $71.73 Range $49.21 - $86.21

Q1 2025

Shares 48,200 Value ($000) $3 Avg Close $79.05 Range $58.04 - $101.44

Q4 2024

Shares 48,200 Value ($000) $4 Avg Close $71.76 Range $59.60 - $91.82

Q3 2024

Shares 48,200 Value ($000) $3 Avg Close $52.69 Range $44.89 - $63.06

Q2 2024

Shares 48,200 Value ($000) $2 Avg Close $47.46 Range $43.30 - $53.58

Q1 2024

Shares 48,200 Value ($000) $2 Avg Close $52.75 Range $44.22 - $63.24

Q4 2023

Shares 48,200 Value ($000) $2 Avg Close $44.09 Range $39.94 - $48.36

Q3 2023

Shares 48,200 Value ($000) $2 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 52,420 Value ($000) $2 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 52,420 Value ($000) $3 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 51,870 Value ($000) $3 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 52,685 Value ($000) $2,130 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 52,685 Value ($000) $2,408 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 52,085 Value ($000) $3,158 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 48,825 Value ($000) $3,758 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 48,825 Value ($000) $2,507 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 48,825 Value ($000) $2,778 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 98,125 Value ($000) $5,369 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 98,175 Value ($000) $5,189 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 169,440 Value ($000) $6,725 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 164,515 Value ($000) $8,910 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 162,315 Value ($000) $6,462 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 166,650 Value ($000) $7,114 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 169,800 Value ($000) $6,661 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 131,900 Value ($000) $5,425 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 116,890 Value ($000) $4,365 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 116,825 Value ($000) $3,962 Avg Close $31.69 Range $28.23 - $36.55

Q3 2018

Shares 173,875 Value ($000) $5,432 Avg Close $28.02 Range $25.19 - $32.33

Q2 2018

Shares 190,510 Value ($000) $5,050 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 188,860 Value ($000) $4,891 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 197,150 Value ($000) $4,126 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 270,950 Value ($000) $5,953 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 273,500 Value ($000) $6,843 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 274,800 Value ($000) $6,488 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 299,760 Value ($000) $7,317 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 313,610 Value ($000) $6,837 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 317,010 Value ($000) $5,944 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 371,910 Value ($000) $7,074 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 375,510 Value ($000) $7,769 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 390,010 Value ($000) $8,081 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 392,810 Value ($000) $9,302 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 395,910 Value ($000) $7,645 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 444,955 Value ($000) $8,637 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 457,645 Value ($000) $7,652 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 685,730 Value ($000) $14,853 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 707,965 Value ($000) $16,099 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 704,890 Value ($000) $16,868 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 643,655 Value ($000) $16,097 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 660,515 Value ($000) $12,834 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	46,775	$11	$194.00	$143.19 - $248.00
Q3 2025	46,775	$7	$101.84	$76.89 - $146.53
Q2 2025	46,775	$4	$71.73	$49.21 - $86.21
Q1 2025	48,200	$3	$79.05	$58.04 - $101.44
Q4 2024	48,200	$4	$71.76	$59.60 - $91.82
Q3 2024	48,200	$3	$52.69	$44.89 - $63.06
Q2 2024	48,200	$2	$47.46	$43.30 - $53.58
Q1 2024	48,200	$2	$52.75	$44.22 - $63.24
Q4 2023	48,200	$2	$44.09	$39.94 - $48.36
Q3 2023	48,200	$2	$44.08	$40.10 - $50.72
Q2 2023	52,420	$2	$45.54	$40.84 - $52.67
Q1 2023	52,420	$3	$49.92	$45.83 - $54.25
Q4 2022	51,870	$3	$45.21	$38.33 - $52.51
Q3 2022	52,685	$2,130	$48.05	$39.44 - $56.38
Q2 2022	52,685	$2,408	$51.84	$41.63 - $61.78
Q1 2022	52,085	$3,158	$65.45	$53.29 - $77.38
Q4 2021	48,825	$3,758	$61.70	$51.01 - $78.28
Q3 2021	48,825	$2,507	$55.54	$50.34 - $58.85
Q2 2021	48,825	$2,778	$55.12	$49.51 - $61.09
Q1 2021	98,125	$5,369	$53.81	$47.52 - $57.57
Q4 2020	98,175	$5,189	$44.43	$38.03 - $54.05
Q3 2020	169,440	$6,725	$52.62	$38.20 - $61.52
Q2 2020	164,515	$8,910	$49.71	$38.00 - $57.19
Q1 2020	162,315	$6,462	$41.03	$30.58 - $44.61
Q4 2019	166,650	$7,114	$38.10	$33.22 - $43.97
Q3 2019	169,800	$6,661	$41.92	$37.94 - $46.78
Q2 2019	131,900	$5,425	$38.48	$32.76 - $46.23
Q1 2019	116,890	$4,365	$38.83	$32.85 - $45.70
Q4 2018	116,825	$3,962	$31.69	$28.23 - $36.55
Q3 2018	173,875	$5,432	$28.02	$25.19 - $32.33
Q2 2018	190,510	$5,050	$25.40	$22.99 - $27.10
Q1 2018	188,860	$4,891	$23.53	$20.71 - $27.73
Q4 2017	197,150	$4,126	$21.20	$19.40 - $22.63
Q3 2017	270,950	$5,953	$23.93	$20.86 - $26.92
Q2 2017	273,500	$6,843	$23.96	$21.43 - $27.98
Q1 2017	274,800	$6,488	$24.52	$22.73 - $26.84
Q4 2016	299,760	$7,317	$21.85	$18.94 - $25.19
Q3 2016	313,610	$6,837	$20.85	$17.59 - $23.60
Q2 2016	317,010	$5,944	$18.11	$15.62 - $21.87
Q1 2016	371,910	$7,074	$18.47	$16.32 - $21.14
Q4 2015	375,510	$7,769	$22.97	$18.98 - $25.46
Q3 2015	390,010	$8,081	$23.24	$17.97 - $26.50
Q2 2015	392,810	$9,302	$22.84	$18.75 - $26.20
Q1 2015	395,910	$7,645	$19.93	$17.86 - $21.47
Q4 2014	444,955	$8,637	$16.70	$13.77 - $20.14
Q3 2014	457,645	$7,652	$19.60	$16.66 - $22.46
Q2 2014	685,730	$14,853	$20.54	$18.00 - $24.21
Q1 2014	707,965	$16,099	$23.52	$21.41 - $27.16
Q4 2013	704,890	$16,868	$23.81	$20.93 - $27.94
Q3 2013	643,655	$16,097	$22.53	$19.37 - $26.17
Q2 2013	660,515	$12,834	$16.65	$14.14 - $20.60