Westlake Chemical Partners LP Common Units representing limited WLKP

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Westlake Chemical Partners LP Common Units representing limited partner interests · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 22.31 → 22.00 · -1.4%
23.72020.79517.870 1 2 3 4 5 6 7,8 9 10 11 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 23 Jul 2025 — 24 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
21.8700 22.2500 21.8739 22.0000 13,731
21.9200 22.2600 21.9200 22.0400 22,500
21.9100 22.1770 21.7900 22.0300 24,100
22.0100 22.2000 21.8400 22.0000 35,900
Weekend
Weekend
21.8900 22.2020 21.8700 22.0100 35,100
21.7700 22.2500 21.7000 21.7900 107,700
22.2400 22.2400 21.7700 21.9000 26,900
22.0500 22.3100 21.7500 22.0400 13,400
21.8100 22.4360 21.8100 22.0900 21,500
Weekend
Weekend
22.2100 22.5230 21.8600 21.9600 25,500
22.2900 22.5400 21.7000 22.1500 47,000
22.3800 22.3800 22.2200 22.2900 12,600
22.1100 22.3200 22.0950 22.2900 12,100
22.1900 22.4450 22.0200 22.1000 60,400
Weekend
Weekend
No trading
22.4950 22.5200 22.2600 22.3600 10,500
22.3700 22.8870 22.2700 22.2900 18,400
22.5200 22.9600 22.2600 22.2600 24,100
22.5100 22.8400 22.4000 22.5300 28,800
Weekend
Weekend
22.4100 22.9260 22.4100 22.6600 10,500
22.8200 22.8250 22.5300 22.5300 11,300
22.6300 22.8860 22.6300 22.6500 10,000
22.6200 23.0000 22.5650 22.6900 20,900
22.2600 22.7660 22.2600 22.5700 39,800
Weekend
Weekend
No trading
22.7000 22.7500 22.5800 22.6000 31,200
23.4300 23.4300 22.6300 22.7700 31,400
23.2500 23.3900 23.2500 23.3200 15,700
23.2800 23.4500 22.9920 23.2500 17,400
Weekend
Weekend
23.2900 23.4100 23.2500 23.3300 27,400
23.2800 23.4280 23.2700 23.2900 18,100
23.2100 23.3800 23.2100 23.2800 14,200
23.3600 23.4000 23.0200 23.2100 16,600
23.1400 23.5500 22.9370 23.3200 27,600
Weekend
Weekend
23.0100 23.3000 22.9000 23.1400 21,000
23.1200 23.1500 22.8800 23.0100 28,500
23.2120 23.2750 22.9500 23.1500 34,300
23.1200 23.4900 23.1100 23.2700 15,400
23.0700 23.4900 23.0600 23.1800 47,600
Weekend
Weekend
22.7900 23.2400 22.7800 22.9300 44,200
22.7500 22.8500 22.6200 22.7700 22,500
22.6700 22.8700 22.6700 22.7500 17,700
22.4600 22.8700 22.3300 22.7100 46,900
No trading
Weekend
Weekend
22.7000 22.8000 22.4200 22.5000 18,400
22.4200 22.7100 22.2700 22.5600 15,100
22.3900 22.5400 22.3300 22.3800 14,400
22.7100 22.7100 22.0200 22.4700 37,900
22.5600 22.8640 22.3400 22.7100 30,900
Weekend
Weekend
22.8050 22.9000 22.6200 22.6500 15,400
23.2100 23.3500 22.8100 23.0000 25,700
23.5900 23.7700 23.4800 23.5700 38,200
23.5800 23.7000 23.4100 23.5400 30,400
23.4600 23.8800 23.2100 23.7200 52,600
Weekend
Weekend
23.2100 23.4700 23.1000 23.2800 42,500
23.5300 23.5300 23.2000 23.2000 35,600
11 · 10-Q After market open · 13:49 ET 10-Q ↗
22.5500 23.4500 22.5500 23.4500 70,000
22.7700 23.6000 22.5200 22.5700 59,800
10 · 8-K Pre-market · 07:30 ET 8-K ↗
23.0000 23.2700 22.6700 22.6700 32,900
Weekend
Weekend
23.0800 23.4900 22.8000 22.9900 19,000
22.9500 23.3200 22.5500 23.0500 36,600
22.9000 22.9500 22.5000 22.8600 13,000
22.6900 22.9130 22.6750 22.8200 24,900
22.5300 22.7000 22.5000 22.5300 22,400
Weekend
Weekend
22.2700 22.6450 22.2500 22.5600 20,100
22.4200 22.5000 22.2000 22.4600 19,700
22.4700 22.5240 22.2500 22.4600 21,200
22.2500 22.5000 22.2400 22.3300 8,200
9 · 8-K After-hours · 17:08 ET 8-K ↗
22.3900 22.9300 22.1700 22.3400 24,200
Weekend
Weekend
22.4600 22.5000 22.2000 22.3900 24,900
22.4600 22.6000 22.1700 22.3300 21,800
22.4600 22.7400 22.2300 22.3000 10,400
22.1500 22.6500 22.1500 22.6000 6,900
22.1200 22.7200 22.1200 22.6500 29,800
Weekend
Weekend
22.6100 22.8400 22.5200 22.6600 19,000
22.7900 22.8500 22.5000 22.6800 29,000
22.0800 22.7400 22.0800 22.5700 35,600
22.0000 22.7200 22.0000 22.4000 33,200
22.0700 22.4000 21.8600 22.1000 32,500
Weekend
Weekend
No trading
22.2300 22.3900 22.0200 22.1300 5,600
22.1800 22.5000 22.0100 22.3900 23,900
21.7000 22.4200 21.6800 22.0900 34,200
21.7000 22.2250 21.5100 21.7400 61,500
Weekend
Weekend
22.2300 22.3650 21.7100 21.7100 57,000
22.2100 22.5500 22.1500 22.1800 29,800
22.4100 22.5000 22.1300 22.4000 20,700
22.0500 22.4700 22.0500 22.3000 23,500
22.2900 22.5950 22.0500 22.0500 35,200
Weekend
Weekend
22.7500 22.7500 21.9850 22.2200 16,000
22.2400 22.5500 22.1650 22.4500 25,900
22.1990 22.5600 22.1150 22.3600 27,400
21.8550 22.4500 21.8550 22.3300 14,800
22.2900 22.5800 21.9800 22.0300 51,700
Weekend
Weekend
22.5000 22.6500 22.0300 22.4500 50,400
22.2600 22.7300 22.1040 22.7300 31,100
22.2000 22.2100 21.8500 22.2100 19,100
21.5900 22.2400 21.5600 22.1200 25,500
21.9900 22.0000 21.5300 21.7000 49,200
Weekend
Weekend
22.5600 22.5600 22.0310 22.1000 24,100
21.9700 22.7400 21.9600 22.7300 76,100
8 · 10-K After market open · 13:01 ET 10-K ↗ 7 · S-3 After-hours · 17:08 ET S-3 ↗
22.1500 22.3400 21.8200 22.1500 22,200
21.9600 22.3500 21.6000 22.0100 57,800
21.7100 22.2800 21.7100 22.1900 29,200
Weekend
Weekend
21.7000 22.1100 21.5900 22.0200 55,900
21.8000 21.8900 21.5000 21.8600 71,300
22.3000 22.3000 21.5800 22.0100 94,600
21.3700 22.1500 21.3600 22.0800 52,800
6 · 8-K Pre-market · 07:22 ET 8-K ↗ 5 · 8-K After-hours · 16:56 ET 8-K ↗
21.2200 21.4000 21.0000 21.2400 78,300
Weekend
Weekend
20.9700 21.4900 20.9650 21.2100 63,700
21.2700 21.4200 20.7800 20.9400 61,200
21.1100 21.5300 21.0700 21.3400 38,700
21.4000 21.4000 21.0100 21.1900 13,800
No trading
Weekend
Weekend
21.2300 21.4000 21.1100 21.3200 23,300
21.6800 21.7000 21.1500 21.1500 69,800
21.1400 21.5500 21.1400 21.5000 88,700
21.1500 21.4000 21.0100 21.1800 26,500
20.7500 21.2400 20.7500 21.2200 41,800
Weekend
Weekend
21.0500 21.0500 20.4600 20.6800 78,000
21.8000 21.8520 21.4000 21.6100 82,000
21.7600 22.2400 21.6550 21.8000 65,500
21.9500 22.3000 21.7700 21.8600 100,500
21.5700 22.0690 21.4790 21.9300 79,700
Weekend
Weekend
21.6300 21.6400 21.3520 21.4600 48,300
21.4400 21.6900 21.3250 21.6800 62,000
21.2400 21.4700 21.0260 21.4100 39,000
21.2500 21.3630 21.0600 21.1800 50,900
21.2900 21.2900 20.9100 21.1100 41,800
Weekend
Weekend
21.3300 21.4180 20.8210 21.0900 41,800
21.2600 21.4100 21.2570 21.3100 45,300
20.9000 21.2100 20.9000 21.2100 18,800
20.8000 20.9900 20.5700 20.8300 27,300
No trading
Weekend
Weekend
20.7500 20.9850 20.7500 20.8500 33,400
20.6000 21.1600 20.6000 20.9400 27,200
20.4600 21.0500 20.4600 20.9100 44,500
20.3800 20.6100 20.2950 20.3300 57,800
20.2500 20.4900 20.1100 20.2500 84,900
Weekend
Weekend
20.2800 20.4180 20.0000 20.3000 30,000
19.7500 20.1700 19.7500 20.1100 41,400
19.9000 19.9700 19.5950 19.7400 36,700
19.2700 19.9800 19.2100 19.8800 83,700
18.9900 19.3650 18.8170 19.1900 40,700
Weekend
Weekend
19.0500 19.4200 18.7500 18.9500 33,000
No trading
18.7400 19.0400 18.7010 19.0000 72,900
18.4800 18.8050 18.3300 18.6200 123,300
18.5500 18.5900 18.3300 18.5000 105,900
Weekend
Weekend
18.9500 19.0800 18.6000 18.6600 68,800
No trading
18.9900 19.1700 18.8300 18.8800 40,900
19.0000 19.3340 18.9010 19.0500 74,800
19.1000 19.5000 19.0000 19.1000 89,700
Weekend
Weekend
19.5000 19.5520 19.0100 19.1000 66,500
19.1500 19.4700 19.1400 19.3900 97,600
19.2800 19.3200 19.1500 19.2100 47,900
19.1500 19.5000 19.1230 19.2500 52,900
19.7500 19.7600 19.0700 19.2100 81,200
Weekend
Weekend
19.8700 20.0000 19.7000 19.7600 38,100
19.2600 19.7830 19.2400 19.7300 73,800
19.1200 19.3650 18.8750 19.3200 75,500
18.8800 19.1800 18.8800 19.0200 34,500
19.1900 19.1900 18.9200 18.9700 52,700
Weekend
Weekend
19.1000 19.1800 18.8400 19.1600 64,300
18.9200 19.0500 18.8200 18.9300 49,200
18.8500 19.1600 18.8500 19.0000 41,400
18.8000 19.0100 18.7500 18.9600 50,200
18.8800 19.1900 18.8100 18.8200 75,700
Weekend
Weekend
19.2000 19.2000 18.9020 18.9600 30,800
No trading
18.8000 19.2550 18.6300 19.0600 149,200
18.2600 18.9770 18.2600 18.7200 56,600
18.2700 18.4900 18.2500 18.4500 47,300
Weekend
Weekend
17.8500 18.3100 17.8500 18.2000 57,600
17.9900 18.1900 17.8600 17.8700 71,900
17.9400 18.1400 17.8900 17.9100 47,800
17.9200 18.1810 17.7500 17.9000 79,700
18.4900 18.5950 17.9200 17.9200 131,400
Weekend
Weekend
18.7800 18.9120 18.5000 18.5400 71,000
19.0500 19.1500 18.6870 18.7800 54,000
18.1500 19.1500 18.1500 19.0500 154,700
18.3800 18.7950 18.0400 18.1500 134,100
18.2000 18.5600 18.1900 18.3800 134,800
Weekend
Weekend
18.5500 18.8000 18.5000 18.6900 176,700
18.7300 18.9900 18.5000 18.6900 81,900
18.6100 18.9000 18.6000 18.6600 45,300
18.5400 19.0850 18.5000 18.5000 133,600
18.8600 18.9300 18.3900 18.6700 189,200
Weekend
Weekend
4 · 10-Q After market open · 15:02 ET 10-Q ↗
18.9600 19.4000 18.8000 18.8600 114,100
18.9600 19.4320 18.1140 18.9500 128,200
3 · 8-K Pre-market · 07:33 ET 8-K ↗
19.3000 19.3590 18.9300 18.9500 126,100
19.6000 19.6100 19.1600 19.3100 113,300
19.8700 20.0000 19.5900 19.6300 54,700
Weekend
Weekend
19.5300 19.9880 19.5100 19.8700 48,400
20.2100 20.2100 19.3300 19.3300 239,300
19.9700 20.2840 19.8120 20.0600 80,400
19.9600 20.0720 19.7470 19.9500 49,900
20.0400 20.2200 19.8500 19.8700 94,800
Weekend
Weekend
20.3500 20.4560 19.9200 19.9500 69,800
20.6500 20.6500 20.2500 20.3500 46,500
20.6500 20.7500 20.5700 20.6300 27,800
20.6800 20.9200 20.5200 20.6500 33,000
20.6100 20.8400 20.6100 20.6900 34,300
Weekend
Weekend
21.1500 21.1500 20.6000 20.6000 73,800
21.2000 21.2570 21.0700 21.0800 35,500
21.0360 21.2390 20.9200 21.0400 38,000
21.0700 21.1230 20.9500 20.9800 33,800
21.4100 21.4200 21.1300 21.1800 32,400
Weekend
Weekend
21.2900 21.4500 21.2000 21.4100 62,000
20.9600 21.2400 20.8000 21.2000 52,000
20.9000 21.2920 20.8320 20.9300 48,600
21.1900 21.4200 20.7200 20.9900 100,700
20.9900 21.4620 20.8500 21.2600 115,000
Weekend
Weekend
20.6800 21.1000 20.6800 20.9500 45,400
20.6700 20.8850 20.6500 20.7700 41,700
20.9700 21.0600 20.6300 20.7000 71,700
21.1200 21.2550 21.0000 21.0300 44,700
21.1500 21.1500 20.9600 21.1000 55,900
Weekend
Weekend
21.5000 21.5550 21.0800 21.1400 65,300
21.6600 21.6600 21.3820 21.4700 39,200
21.5000 21.7000 21.5000 21.5800 28,000
21.9050 21.9050 21.5100 21.6000 25,600
21.7300 21.8420 21.6510 21.7500 29,100
Weekend
Weekend
21.9000 21.9430 21.5800 21.6500 59,500
21.7800 21.8860 21.7500 21.8600 36,300
21.9300 21.9900 21.7500 21.8100 32,800
21.9900 22.0100 21.8100 21.8800 50,700
21.8400 21.9950 21.7600 21.9700 35,200
Weekend
Weekend
21.8300 22.0500 21.7600 21.8900 20,500
21.9500 22.0100 21.7700 21.8500 64,300
22.0000 22.1200 21.9160 21.9800 27,000
22.0700 22.2230 22.0100 22.1000 17,500
No trading
Weekend
Weekend
22.2800 22.3000 22.0900 22.0900 39,800
22.1900 22.4130 22.1300 22.2200 22,800
22.4000 22.4000 22.1000 22.1900 45,400
21.9900 22.4000 21.9900 22.3200 37,700
22.0400 22.2400 22.0000 22.0200 25,800
Weekend
Weekend
22.1100 22.2500 22.0910 22.1500 24,200
22.1000 22.1050 21.9600 22.0100 20,000
21.9000 22.1450 21.7800 22.1000 33,000
21.9000 22.0100 21.8200 21.8200 23,600
22.0000 22.1000 21.8050 21.9200 27,600
Weekend
Weekend
22.0300 22.0300 21.8000 22.0000 39,700
21.8500 22.0250 21.7650 21.9300 29,900
21.9200 22.0400 21.8900 21.9000 29,500
21.9500 22.0700 21.8500 21.9300 45,200
22.0700 22.4000 22.0000 22.3200 63,800
Weekend
Weekend
21.9600 22.1900 21.8600 21.9500 52,400
22.0700 22.1400 21.8800 21.9600 24,800
2 · 10-Q After-hours · 17:02 ET 10-Q ↗
22.1330 22.1330 21.8300 21.9200 32,500
21.8000 22.1500 21.7750 22.0100 26,500
1 · 8-K Pre-market · 07:25 ET 8-K ↗
21.9600 22.1000 21.7760 21.8000 27,800
Weekend
Weekend
21.8500 21.9700 21.7500 21.8200 49,600
21.9800 22.1400 21.8800 22.0300 43,800
22.0000 22.0100 21.9000 21.9600 29,600
21.9900 22.0500 21.9500 22.0400 18,800
22.0200 22.0660 21.9500 21.9700 19,300
Weekend
Weekend
22.1100 22.3900 21.9500 22.0700 26,100
22.2500 22.2890 21.9400 22.0200 29,000
22.0700 22.4010 21.9950 22.3100 16,000

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

11 10-Q 10-Q (opens SEC filing in a new tab) After market open · 13:49 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:30 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
8 10-K 10-K (opens SEC filing in a new tab) After market open · 13:01 ET Summarise
7 S-3 S-3 (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:22 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:56 ET Summarise
4 10-Q 10-Q (opens SEC filing in a new tab) After market open · 15:02 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:33 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:02 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:25 ET Summarise