CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

PLATINUM INVESTMENT MANAGEMENT LTD's Holding History (CIK: 0001256071)

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

Q3 2023

Shares 34,172 Value ($000) $1,615 Avg Close $44.08 Range $40.10 - $50.72

Q2 2023

Shares 48,123 Value ($000) $2,045 Avg Close $45.54 Range $40.84 - $52.67

Q1 2023

Shares 71,693 Value ($000) $3,765 Avg Close $49.92 Range $45.83 - $54.25

Q4 2022

Shares 1,243,489 Value ($000) $63,393 Avg Close $45.21 Range $38.33 - $52.51

Q3 2022

Shares 1,249,966 Value ($000) $50,536 Avg Close $48.05 Range $39.44 - $56.38

Q2 2022

Shares 1,249,966 Value ($000) $57,123 Avg Close $51.84 Range $41.63 - $61.78

Q1 2022

Shares 1,254,226 Value ($000) $76,044 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 1,352,330 Value ($000) $104,089 Avg Close $61.70 Range $51.01 - $78.28

Q3 2021

Shares 1,352,330 Value ($000) $69,442 Avg Close $55.54 Range $50.34 - $58.85

Q2 2021

Shares 1,323,864 Value ($000) $75,315 Avg Close $55.12 Range $49.51 - $61.09

Q1 2021

Shares 726,248 Value ($000) $39,740 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 16,465 Value ($000) $870 Avg Close $44.43 Range $38.03 - $54.05

Q1 2017

Shares 103,900 Value ($000) $2,453 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 116,900 Value ($000) $2,853 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 128,900 Value ($000) $2,810 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 937,377 Value ($000) $17,575 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 937,377 Value ($000) $17,828 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 937,377 Value ($000) $19,394 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 1,170,260 Value ($000) $24,247 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 6,154,825 Value ($000) $145,746 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 6,563,925 Value ($000) $126,749 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 6,563,925 Value ($000) $127,405 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 6,523,325 Value ($000) $109,069 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 7,715,200 Value ($000) $167,111 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 7,245,200 Value ($000) $164,755 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 7,229,200 Value ($000) $172,994 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 6,486,200 Value ($000) $162,213 Avg Close $22.53 Range $19.37 - $26.17

Q2 2013

Shares 6,686,200 Value ($000) $129,912 Avg Close $16.65 Range $14.14 - $20.60

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	34,172	$1,615	$44.08	$40.10 - $50.72
Q2 2023	48,123	$2,045	$45.54	$40.84 - $52.67
Q1 2023	71,693	$3,765	$49.92	$45.83 - $54.25
Q4 2022	1,243,489	$63,393	$45.21	$38.33 - $52.51
Q3 2022	1,249,966	$50,536	$48.05	$39.44 - $56.38
Q2 2022	1,249,966	$57,123	$51.84	$41.63 - $61.78
Q1 2022	1,254,226	$76,044	$65.45	$53.29 - $77.38
Q4 2021	1,352,330	$104,089	$61.70	$51.01 - $78.28
Q3 2021	1,352,330	$69,442	$55.54	$50.34 - $58.85
Q2 2021	1,323,864	$75,315	$55.12	$49.51 - $61.09
Q1 2021	726,248	$39,740	$53.81	$47.52 - $57.57
Q4 2020	16,465	$870	$44.43	$38.03 - $54.05
Q1 2017	103,900	$2,453	$24.52	$22.73 - $26.84
Q4 2016	116,900	$2,853	$21.85	$18.94 - $25.19
Q3 2016	128,900	$2,810	$20.85	$17.59 - $23.60
Q2 2016	937,377	$17,575	$18.11	$15.62 - $21.87
Q1 2016	937,377	$17,828	$18.47	$16.32 - $21.14
Q4 2015	937,377	$19,394	$22.97	$18.98 - $25.46
Q3 2015	1,170,260	$24,247	$23.24	$17.97 - $26.50
Q2 2015	6,154,825	$145,746	$22.84	$18.75 - $26.20
Q1 2015	6,563,925	$126,749	$19.93	$17.86 - $21.47
Q4 2014	6,563,925	$127,405	$16.70	$13.77 - $20.14
Q3 2014	6,523,325	$109,069	$19.60	$16.66 - $22.46
Q2 2014	7,715,200	$167,111	$20.54	$18.00 - $24.21
Q1 2014	7,245,200	$164,755	$23.52	$21.41 - $27.16
Q4 2013	7,229,200	$172,994	$23.81	$20.93 - $27.94
Q3 2013	6,486,200	$162,213	$22.53	$19.37 - $26.17
Q2 2013	6,686,200	$129,912	$16.65	$14.14 - $20.60