73 filings
S-8
WLK
Westlake Corporation
11 May 23
Registration of securities for employees
4:26pm
S-3ASR
WLK
Westlake Corporation
3 Nov 22
Automatic shelf registration
4:43pm
424B5
WLK
Westlake Corporation
6 Aug 21
Prospectus supplement for primary offering
5:17pm
FWP
WLK
Westlake Corporation
5 Aug 21
Free writing prospectus
5:15pm
424B5
WLK
Westlake Corporation
5 Aug 21
Prospectus supplement for primary offering
8:45am
424B5
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10 Jun 20
Prospectus supplement for primary offering
5:10pm
FWP
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9 Jun 20
Free writing prospectus
4:12pm
424B5
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9 Jun 20
Prospectus supplement for primary offering
8:59am
S-3ASR
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7 Nov 19
Automatic shelf registration
4:52pm
8-A12B
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17 Jul 19
Registration of securities on exchange
5:17pm
424B5
em8ydp
12 Jul 19
Prospectus supplement for primary offering
12:00am
FWP
6d4qxr36d a5c
10 Jul 19
Free writing prospectus
2:54pm
424B5
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10 Jul 19
Prospectus supplement for primary offering
6:07am
POSASR
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20 Sep 18
Automatic shelf registration (post-effective amendment)
4:09pm
424B5
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14 Nov 17
Prospectus supplement for primary offering
12:00am
424B5
zungxly4oudewb
13 Nov 17
Prospectus supplement for primary offering
12:00am
FWP
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13 Nov 17
Free writing prospectus
12:00am
POSASR
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10 Apr 17
Automatic shelf registration (post-effective amendment)
12:00am
424B5
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27 Mar 17
Prospectus supplement for primary offering
12:00am