Westlake Chemical Corp (WLK)

Stock chart
Ticker: WLK Exchange: NYS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2024-12-02 2024-11-29 S Sale

Chao David Tsung-Hung

Non-Executive Director
1,750 -18.4%
129.08
USD 225,888
1,750 -18.4% 129.08 USD 225,888
2024-11-25 2024-11-22 S Sale

Chao David Tsung-Hung

Non-Executive Director
1,750 -15.5%
130.00
USD 227,500
1,750 -15.5% 130.00 USD 227,500
2024-05-13 2024-05-09 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
3,500 -16.6%
158.50
USD 554,750
3,500 -16.6% 158.50 USD 554,750
2024-05-06 2024-05-03 S Sale

Bender Mark Steven

EVP & CFO

Officer
4,950 -10.9%
152.19
USD 753,341
4,950 -10.9% 152.19 USD 753,341
2024-03-18 2024-03-15 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
3,878 -15.5%
144.50
USD 560,371
3,878 -15.5% 144.50 USD 560,371
2024-03-14 2024-03-13 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
122 -0.5%
144.50
USD 17,629
122 -0.5% 144.50 USD 17,629
2024-03-07 2024-03-06 S Sale

Bender Mark Steven

EVP & CFO

Officer
4,804 -9.6%
141.02
USD 677,455
4,804 -9.6% 141.02 USD 677,455
2024-02-28 2024-02-26 S Sale

Bender Mark Steven

EVP & CFO

Officer
4,854 -8.8%
137.57
USD 667,765
4,854 -8.8% 137.57 USD 667,765
2023-11-17 2023-11-15 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
4,215 -20.1%
130.50
USD 550,058
4,215 -20.1% 130.50 USD 550,058
2023-08-24 2023-08-23 S Sale

Chao David Tsung-Hung

Non-Executive Director Large shareholder
1,000 -9.0%
131.00
USD 131,000
1,000 -9.0% 131.00 USD 131,000
2022-09-01 2022-08-31 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
1,000 -8.9%
98.94
USD 98,940
1,000 -8.9% 98.94 USD 98,940
2022-08-29 2022-08-26 S Sale

Zoeller Johnathan Stevan

VP & Chief Accounting Officer

Officer
542 -50.0%
107.08
USD 58,037
542 -50.0% 107.08 USD 58,037
2022-05-31 2022-05-27 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
14,427 -55.1%
129.47
USD 1,867,820
14,427 -55.1% 129.47 USD 1,867,820
2022-05-23 2022-05-19 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
5,045 -1.1%
129.38
USD 652,712
5,045 -1.1% 129.38 USD 652,712
2022-05-23 2022-05-19 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
20,815 -4.2%
130.20
USD 2,710,019
20,815 -4.2% 130.20 USD 2,710,019
2022-05-23 2022-05-19 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
12,016 -2.4%
131.11
USD 1,575,450
12,016 -2.4% 131.11 USD 1,575,450
2022-05-18 2022-05-17 S Sale

Kearns Roger L.

COO and EVP - PEM

Officer
8,388 -24.1%
136.24
USD 1,142,739
8,388 -24.1% 136.24 USD 1,142,739
2022-05-06 2022-05-05 S Sale

Ederington L. Benjamin

EVP, GC, CAO and Secretary

Officer
3,143 -7.7%
139.26
USD 437,694
3,143 -7.7% 139.26 USD 437,694
2022-05-06 2022-05-05 S Sale

Ederington L. Benjamin

EVP, GC, CAO and Secretary

Officer
9,426 -18.9%
140.00
USD 1,319,640
9,426 -18.9% 140.00 USD 1,319,640
2022-04-01 2022-03-31 S Sale

Bender Mark Steven

EVP and CFO

Officer
100 -0.3%
124.99
USD 12,499
100 -0.3% 124.99 USD 12,499
2022-04-01 2022-03-31 S Sale

Bender Mark Steven

EVP and CFO

Officer
5,921 -16.1%
124.34
USD 736,235
5,921 -16.1% 124.34 USD 736,235
2022-03-30 2022-03-29 S Sale

Bender Mark Steven

EVP and CFO

Officer
4,000 -11.5%
122.44
USD 489,748
4,000 -11.5% 122.44 USD 489,748
2022-03-28 2022-03-25 S Sale

Bender Mark Steven

EVP and CFO

Officer
2,947 -8.8%
125.74
USD 370,559
2,947 -8.8% 125.74 USD 370,559
2022-03-28 2022-03-25 S Sale

Bender Mark Steven

EVP and CFO

Officer
5,053 -13.0%
125.11
USD 632,166
5,053 -13.0% 125.11 USD 632,166
2022-03-28 2022-03-25 S Sale

Kearns Roger L.

COO and EVP - PEM

Officer
2,861 -9.8%
126.40
USD 361,636
2,861 -9.8% 126.40 USD 361,636
2022-03-28 2022-03-25 S Sale

Kearns Roger L.

COO and EVP - PEM

Officer
7,472 -20.3%
125.84
USD 940,291
7,472 -20.3% 125.84 USD 940,291
2022-03-25 2022-03-24 S Sale

Bender Mark Steven

EVP and CFO

Officer
8,000 -20.7%
125.38
USD 1,003,070
8,000 -20.7% 125.38 USD 1,003,070
2022-03-24 2022-03-23 S Sale

Bender Mark Steven

EVP and CFO

Officer
344 -1.1%
125.69
USD 43,236
344 -1.1% 125.69 USD 43,236
2022-03-24 2022-03-23 S Sale

Bender Mark Steven

EVP and CFO

Officer
5,656 -15.4%
125.14
USD 707,775
5,656 -15.4% 125.14 USD 707,775
2022-03-14 2022-03-10 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
22,555 -60.3%
117.61
USD 2,652,694
22,555 -60.3% 117.61 USD 2,652,694
2022-03-10 2022-03-09 S Sale

Buesinger Robert F.

EVP, HIP, IT & Digital

Officer
2,730 -15.5%
115.55
USD 315,452
2,730 -15.5% 115.55 USD 315,452
2022-03-02 2022-03-01 S Sale

Zoeller Johnathan Stevan

VP and CAO

Officer
1,006 -46.5%
110.39
USD 111,052
1,006 -46.5% 110.39 USD 111,052
2021-12-06 2021-12-02 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
20,327 -4.4%
92.29
USD 1,875,979
20,327 -4.4% 92.29 USD 1,875,979
2021-12-06 2021-12-02 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
7,585 -1.6%
91.52
USD 694,179
7,585 -1.6% 91.52 USD 694,179
2021-12-06 2021-12-02 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
1,175 -0.2%
90.12
USD 105,891
1,175 -0.2% 90.12 USD 105,891
2021-12-06 2021-12-02 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
1,700 -0.4%
89.25
USD 151,725
1,700 -0.4% 89.25 USD 151,725
2021-12-03 2021-12-01 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
3,789 -0.9%
94.80
USD 359,197
3,789 -0.9% 94.80 USD 359,197
2021-12-03 2021-12-01 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
4,300 -1.0%
93.98
USD 404,114
4,300 -1.0% 93.98 USD 404,114
2021-12-03 2021-12-01 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
4,200 -0.9%
92.78
USD 389,676
4,200 -0.9% 92.78 USD 389,676
2021-12-03 2021-12-01 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
5,842 -1.3%
91.83
USD 536,471
5,842 -1.3% 91.83 USD 536,471
2021-12-03 2021-12-01 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
3,000 -0.6%
90.47
USD 271,410
3,000 -0.6% 90.47 USD 271,410
2021-12-03 2021-12-01 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
9,656 -2.0%
89.47
USD 863,922
9,656 -2.0% 89.47 USD 863,922
2021-11-15 2021-11-11 S Sale

Bender Mark Steven

EVP and CFO

Executive Director
2,369 -9.7%
101.57
USD 240,619
2,369 -9.7% 101.57 USD 240,619
2021-11-10 2021-11-08 S Sale

Bender Mark Steven

EVP and CFO

Executive Director
631 -2.5%
100.77
USD 63,587
631 -2.5% 100.77 USD 63,587
2021-11-08 2021-11-05 S Sale

Bender Mark Steven

EVP and CFO

Executive Director
6,356 -20.3%
98.80
USD 627,947
6,356 -20.3% 98.80 USD 627,947
2021-08-12 2021-08-11 B Purchase

Chao Albert

President & CEO

Executive Director Large shareholder
3,000 +0.7%
86.21
USD 258,630
3,000 +0.7% 86.21 USD 258,630
2021-05-11 2021-05-10 S Sale

Buesinger Robert F.

EVP, Vinyl Products

Officer
5,000 -37.8%
105.00
USD 525,000
5,000 -37.8% 105.00 USD 525,000
2021-03-15 2021-03-12 S Sale

Bender Mark Steven

EVP and CFO

Officer
5,820 -15.6%
95.23
USD 554,239
5,820 -15.6% 95.23 USD 554,239
2021-03-15 2021-03-12 S Sale

Bender Mark Steven

EVP and CFO

Officer
9,920 -21.1%
94.39
USD 936,349
9,920 -21.1% 94.39 USD 936,349
2021-03-10 2021-03-09 S Sale

Bender Mark Steven

EVP and CFO

Officer
25,811 -45.1%
92.27
USD 2,381,630
25,811 -45.1% 92.27 USD 2,381,630
2021-03-09 2021-03-08 S Sale

Buesinger Robert F.

EVP, Vinyl Products

Officer
7,861 -37.2%
95.00
USD 746,795
7,861 -37.2% 95.00 USD 746,795
2021-03-09 2021-03-08 S Sale

Buesinger Robert F.

EVP, Vinyl Products

Officer
8,652 -29.0%
92.50
USD 800,310
8,652 -29.0% 92.50 USD 800,310
2021-02-26 2021-02-25 S Sale

Teel Lawrence E.

EVP and Special Advisor to CEO

Officer
4,902 -50.0%
87.14
USD 427,160
4,902 -50.0% 87.14 USD 427,160
2021-02-26 2021-02-25 S Sale

Teel Lawrence E.

EVP and Special Advisor to CEO

Officer
28,547 -74.4%
86.93
USD 2,481,505
28,547 -74.4% 86.93 USD 2,481,505
2021-02-26 2021-02-25 S Sale

Zoeller Johnathan Stevan

VP and CAO

Officer
1,006 -100.0%
86.94
USD 87,457
1,006 -100.0% 86.94 USD 87,457
2020-11-25 2020-11-24 S Sale

Buesinger Robert F.

EVP, Vinyl Products

Officer
4,581 -30.2%
77.50
USD 355,028
4,581 -30.2% 77.50 USD 355,028
2020-11-24 2020-11-23 S Sale

Kenner Andrew

SVP - Chemical Manufacturing

Officer
5,924 -34.1%
74.75
USD 442,819
5,924 -34.1% 74.75 USD 442,819
2020-11-10 2020-11-06 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
4,198 -1.0%
75.12
USD 315,354
4,198 -1.0% 75.12 USD 315,354
2020-11-10 2020-11-06 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
10,334 -2.3%
74.29
USD 767,713
10,334 -2.3% 74.29 USD 767,713
2020-11-10 2020-11-06 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
11,978 -2.6%
73.30
USD 877,987
11,978 -2.6% 73.30 USD 877,987
2020-11-10 2020-11-06 S Sale

Chao Albert

President & CEO

Executive Director Large shareholder
28,638 -5.9%
72.08
USD 2,064,227
28,638 -5.9% 72.08 USD 2,064,227
2020-11-10 2020-11-06 S Sale

Bender Mark Steven

EVP and CFO

Executive Director
1,600 -5.4%
74.79
USD 119,671
1,600 -5.4% 74.79 USD 119,671
2020-11-06 2020-11-05 S Sale

Bender Mark Steven

EVP and CFO

Officer
420 -1.4%
74.54
USD 31,307
420 -1.4% 74.54 USD 31,307
2020-11-06 2020-11-05 S Sale

Bender Mark Steven

EVP and CFO

Officer
24,576 -45.1%
73.98
USD 1,818,132
24,576 -45.1% 73.98 USD 1,818,132
2020-03-30 2020-03-27 B Purchase

TTWFGP LLC

Large shareholder
11,287 +0.0%
40.31
USD 454,979
11,287 +0.0% 40.31 USD 454,979
2020-03-30 2020-03-27 B Purchase

TTWFGP LLC

Large shareholder
89,443 +0.2%
39.49
USD 3,532,104
89,443 +0.2% 39.49 USD 3,532,104
2020-03-30 2020-03-27 B Purchase

TTWFGP LLC

Large shareholder
42,295 +0.1%
38.49
USD 1,627,935
42,295 +0.1% 38.49 USD 1,627,935
2020-03-30 2020-03-27 B Purchase

TTWFGP LLC

Large shareholder
16,975 +0.0%
37.58
USD 637,921
16,975 +0.0% 37.58 USD 637,921
2020-03-27 2020-03-26 B Purchase

TTWFGP LLC

Large shareholder
8,800 +0.0%
41.99
USD 369,512
8,800 +0.0% 41.99 USD 369,512
2020-03-27 2020-03-26 B Purchase

TTWFGP LLC

Large shareholder
94,001 +0.2%
41.15
USD 3,868,141
94,001 +0.2% 41.15 USD 3,868,141
2020-03-27 2020-03-26 B Purchase

TTWFGP LLC

Large shareholder
42,199 +0.1%
40.47
USD 1,707,794
42,199 +0.1% 40.47 USD 1,707,794
2020-03-26 2020-03-25 B Purchase

TTWFGP LLC

Large shareholder
24,064 +0.1%
42.69
USD 1,027,292
24,064 +0.1% 42.69 USD 1,027,292
2020-03-26 2020-03-25 B Purchase

TTWFGP LLC

Large shareholder
33,358 +0.1%
42.02
USD 1,401,703
33,358 +0.1% 42.02 USD 1,401,703
2020-03-26 2020-03-25 B Purchase

TTWFGP LLC

Large shareholder
14,025 +0.0%
40.96
USD 574,464
14,025 +0.0% 40.96 USD 574,464
2020-03-26 2020-03-25 B Purchase

TTWFGP LLC

Large shareholder
27,671 +0.1%
39.83
USD 1,102,136
27,671 +0.1% 39.83 USD 1,102,136
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