CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

Municipal Employees' Retirement System of Michigan's Holding History (CIK: 0001588873)

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

Q1 2020

Shares 29,030 Value ($000) $1,156 Avg Close $41.03 Range $30.58 - $44.61

Q4 2019

Shares 28,770 Value ($000) $1,228 Avg Close $38.10 Range $33.22 - $43.97

Q3 2019

Shares 28,460 Value ($000) $1,116 Avg Close $41.92 Range $37.94 - $46.78

Q2 2019

Shares 26,590 Value ($000) $1,094 Avg Close $38.48 Range $32.76 - $46.23

Q1 2019

Shares 26,310 Value ($000) $982 Avg Close $38.83 Range $32.85 - $45.70

Q4 2018

Shares 34,270 Value ($000) $1,162 Avg Close $31.69 Range $28.23 - $36.55

Q2 2018

Shares 33,610 Value ($000) $891 Avg Close $25.40 Range $22.99 - $27.10

Q1 2018

Shares 44,840 Value ($000) $1,161 Avg Close $23.53 Range $20.71 - $27.73

Q4 2017

Shares 42,880 Value ($000) $897 Avg Close $21.20 Range $19.40 - $22.63

Q3 2017

Shares 42,880 Value ($000) $942 Avg Close $23.93 Range $20.86 - $26.92

Q2 2017

Shares 54,720 Value ($000) $1,369 Avg Close $23.96 Range $21.43 - $27.98

Q1 2017

Shares 64,570 Value ($000) $1,524 Avg Close $24.52 Range $22.73 - $26.84

Q4 2016

Shares 63,770 Value ($000) $1,557 Avg Close $21.85 Range $18.94 - $25.19

Q3 2016

Shares 58,050 Value ($000) $1,265 Avg Close $20.85 Range $17.59 - $23.60

Q2 2016

Shares 57,230 Value ($000) $1,073 Avg Close $18.11 Range $15.62 - $21.87

Q1 2016

Shares 43,070 Value ($000) $819 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 40,540 Value ($000) $839 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 40,050 Value ($000) $830 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 36,860 Value ($000) $873 Avg Close $22.84 Range $18.75 - $26.20

Q1 2015

Shares 32,300 Value ($000) $624 Avg Close $19.93 Range $17.86 - $21.47

Q4 2014

Shares 34,600 Value ($000) $672 Avg Close $16.70 Range $13.77 - $20.14

Q3 2014

Shares 29,800 Value ($000) $498 Avg Close $19.60 Range $16.66 - $22.46

Q2 2014

Shares 28,500 Value ($000) $617 Avg Close $20.54 Range $18.00 - $24.21

Q1 2014

Shares 28,500 Value ($000) $648 Avg Close $23.52 Range $21.41 - $27.16

Q4 2013

Shares 28,300 Value ($000) $677 Avg Close $23.81 Range $20.93 - $27.94

Q3 2013

Shares 16,700 Value ($000) $417 Avg Close $22.53 Range $19.37 - $26.17

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	29,030	$1,156	$41.03	$30.58 - $44.61
Q4 2019	28,770	$1,228	$38.10	$33.22 - $43.97
Q3 2019	28,460	$1,116	$41.92	$37.94 - $46.78
Q2 2019	26,590	$1,094	$38.48	$32.76 - $46.23
Q1 2019	26,310	$982	$38.83	$32.85 - $45.70
Q4 2018	34,270	$1,162	$31.69	$28.23 - $36.55
Q2 2018	33,610	$891	$25.40	$22.99 - $27.10
Q1 2018	44,840	$1,161	$23.53	$20.71 - $27.73
Q4 2017	42,880	$897	$21.20	$19.40 - $22.63
Q3 2017	42,880	$942	$23.93	$20.86 - $26.92
Q2 2017	54,720	$1,369	$23.96	$21.43 - $27.98
Q1 2017	64,570	$1,524	$24.52	$22.73 - $26.84
Q4 2016	63,770	$1,557	$21.85	$18.94 - $25.19
Q3 2016	58,050	$1,265	$20.85	$17.59 - $23.60
Q2 2016	57,230	$1,073	$18.11	$15.62 - $21.87
Q1 2016	43,070	$819	$18.47	$16.32 - $21.14
Q4 2015	40,540	$839	$22.97	$18.98 - $25.46
Q3 2015	40,050	$830	$23.24	$17.97 - $26.50
Q2 2015	36,860	$873	$22.84	$18.75 - $26.20
Q1 2015	32,300	$624	$19.93	$17.86 - $21.47
Q4 2014	34,600	$672	$16.70	$13.77 - $20.14
Q3 2014	29,800	$498	$19.60	$16.66 - $22.46
Q2 2014	28,500	$617	$20.54	$18.00 - $24.21
Q1 2014	28,500	$648	$23.52	$21.41 - $27.16
Q4 2013	28,300	$677	$23.81	$20.93 - $27.94
Q3 2013	16,700	$417	$22.53	$19.37 - $26.17