48 filings
SD
CIEN
CIENA Corp.
30 May 24
Conflict minerals disclosure
3:32pm
SD
CIEN
CIENA Corp.
31 May 23
Conflict minerals disclosure
11:25am
SD
CIEN
CIENA Corp.
31 May 22
Conflict minerals disclosure
4:30pm
SD
CIEN
CIENA Corp.
28 May 21
Conflict minerals disclosure
8:52am
SD
CIEN
CIENA Corp.
29 May 20
Conflict minerals disclosure
5:25pm
UPLOAD
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27 Apr 20
Letter from SEC
12:00am
CORRESP
ta3 f3hpprtfq
23 Apr 20
Correspondence with SEC
12:00am
UPLOAD
usofg7n7 a2v2mfwf
16 Apr 20
Letter from SEC
12:00am
CT ORDER
ed383fw bwg5
24 Oct 19
Confidential treatment order
12:37pm
SD
lcxvi7sv5l9
29 May 19
Conflict minerals disclosure
3:36pm
SD
gk6vi4l
24 May 18
Conflict minerals disclosure
12:04pm
UPLOAD
ycm1ks7i
27 Feb 18
Letter from SEC
12:00am
CORRESP
6po3hehe1psjxszw
15 Feb 18
Correspondence with SEC
12:00am
UPLOAD
h4yhjhh 9oe1xcz
8 Feb 18
Letter from SEC
12:00am
EFFECT
dptaqe 4nwxr36rh
28 Jul 17
Notice of effectiveness
12:00am
CORRESP
21zlquaol2w m8jpa
14 Jul 17
Correspondence with SEC
12:00am
UPLOAD
aykxp3bbighjf9
10 Jul 17
Letter from SEC
12:00am
SD
5ng1ea xa
26 May 17
Conflict minerals disclosure
12:00am
SD
5g7o3
27 May 16
Conflict minerals disclosure
12:00am
UPLOAD
rxmd5 s26ab
14 Apr 16
Letter from SEC
12:00am