41 filings
SD
WLK
Westlake Corporation
31 May 23
Conflict minerals disclosure
12:28pm
SD
WLK
Westlake Corporation
16 May 22
Conflict minerals disclosure
12:00am
CORRESP
WLK
Westlake Corporation
23 Sep 21
Correspondence with SEC
12:00am
UPLOAD
WLK
Westlake Corporation
23 Sep 21
Letter from SEC
12:00am
UPLOAD
WLK
Westlake Corporation
20 Sep 21
Letter from SEC
12:00am
SD
xlofvik
21 May 21
Conflict minerals disclosure
1:14pm
SD
0al8xn2mbvkc9jouyttu
22 May 20
Conflict minerals disclosure
10:11am
CERT
xeyxesyctkpisewzj
22 Jul 19
Certification of approval for exchange listing
9:15am
SD
acxkqoou0p 1whq
24 May 19
Conflict minerals disclosure
4:33pm
SD
11g9h
22 May 18
Conflict minerals disclosure
4:16pm
SD
8qcpw
31 May 17
Conflict minerals disclosure
12:00am
EFFECT
7lm3cycq
27 Mar 17
Notice of effectiveness
12:00am
CORRESP
zdbejb
22 Mar 17
Correspondence with SEC
12:00am
UPLOAD
7yf229b uq
21 Mar 17
Letter from SEC
12:00am
CORRESP
oo0qmoxj dw
15 Mar 17
Correspondence with SEC
12:00am
SD
r6z82ljwsfdavbzk
31 May 16
Conflict minerals disclosure
12:00am
CORRESP
8v0 6opfp
18 Apr 16
Correspondence with SEC
12:00am
SD
gjomydzo
1 Jun 15
Conflict minerals disclosure
12:00am
SD
w3v8w20uern1n93pfr9
30 May 14
Conflict minerals disclosure
12:00am
UPLOAD
q54 9ymeem4t0ig0
12 Jul 12
Letter from SEC
12:00am