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
vl6e9ip
27 Apr 20
Letter from SEC
12:00am
CORRESP
5alivf1 iy91lkwrt
23 Apr 20
Correspondence with SEC
12:00am
UPLOAD
jcbx3
16 Apr 20
Letter from SEC
12:00am
CT ORDER
ccneesy57zvwwi8le fu
24 Oct 19
Confidential treatment order
12:37pm
SD
jp5wy5h6u4ht29kv0jj
29 May 19
Conflict minerals disclosure
3:36pm
SD
c5suv
24 May 18
Conflict minerals disclosure
12:04pm
UPLOAD
vtgbz4 wixp
27 Feb 18
Letter from SEC
12:00am
CORRESP
67qghkvo90s2sh
15 Feb 18
Correspondence with SEC
12:00am
UPLOAD
vctvrurb2n4i6
8 Feb 18
Letter from SEC
12:00am
EFFECT
e6pt7pspe9654k
28 Jul 17
Notice of effectiveness
12:00am
CORRESP
kp4swrzuvx9bd4qq6z5d
14 Jul 17
Correspondence with SEC
12:00am
UPLOAD
52bt bbkip
10 Jul 17
Letter from SEC
12:00am
SD
pa6qx4lzm8m7xj5lr
26 May 17
Conflict minerals disclosure
12:00am
SD
hd8kyj0y
27 May 16
Conflict minerals disclosure
12:00am
UPLOAD
a4zvo1q
14 Apr 16
Letter from SEC
12:00am