Latest filings (excl ownership)
POSASR
Automatic shelf registration (post-effective amendment)
20 Sep 18
15-15D
Suspension of duty to report
20 Sep 18
424B5
Prospectus supplement for primary offering
13 Nov 17
POSASR
Automatic shelf registration (post-effective amendment)
10 Apr 17
424B5
Prospectus supplement for primary offering
27 Mar 17
EFFECT
Notice of effectiveness
27 Mar 17
CORRESP
Correspondence with SEC
22 Mar 17
UPLOAD
Letter from SEC
21 Mar 17
S-3ASR
Automatic shelf registration
9 Sep 13
424B5
Prospectus supplement for primary offering
11 Jul 12
424B5
Prospectus supplement for primary offering
10 Jul 12
S-3ASR
Automatic shelf registration
30 Sep 11
POS AM
Prospectus update (post-effective amendment)
11 Jun 08
POS AM
Prospectus update (post-effective amendment)
15 May 08
EFFECT
Notice of effectiveness
22 Apr 08
S-3
Shelf registration
11 Apr 08
S-3/A
Shelf registration (amended)
2 Dec 05
S-3/A
Shelf registration (amended)
23 Nov 05
S-3
Shelf registration
3 May 05
S-4
Registration of securities issued in business combination transactions
22 Sep 03
Latest ownership filings
SC 13G/A
Westlake Chemical Partners LP
23 Jan 23
SC 13G/A
Westlake Chemical Partners LP
21 Jan 22
SC 13G/A
Westlake Chemical Partners LP
15 Jan 21
SC 13G/A
Westlake Chemical Partners LP
27 Jan 20
SC 13G
WPT LLC
6 Feb 19
SC 13G/A
Westlake Chemical Partners LP
26 Jan 18
4
Westlake Chemical Partners LP
31 Aug 17
SC 13G/A
Westlake Chemical Partners LP
13 Feb 17
SC 13G/A
Westlake Chemical Partners LP
12 Feb 16
SC 13G
Westlake Chemical Partners LP
13 Feb 15