InsiderClue
← All stocks

WESTLAKE CORP

WLK Net buying
CIK 0001262823 #932 in the set updated 17 Sep 2026
Bought (120 mo)
$50.39M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$128.08M
$0.00 on a plan · $101.18M straight out of an exercise
Sold at will
$26.90M
51 of 154 sales
Net
−$77.69M
+$23.49M against sales at will

By person

30 insiders · 236 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
TTWFGP LLC entity
10% owner
$49.98M (37)
—
+$49.98M
47,400,277
37.09%
$3.81B
+3.0%
Chao Albert
Executive Chairman
$258.63K (1)
$49.92M (51) scheduled
−$49.66M
642,880
0.5030%
$51.70M
+140.2%
Bender Mark Steven
EVP & CFO
—
$29.78M (39) scheduled
−$29.78M
35,895
0.0281%
$2.89M
−36.5%
Chao James
Senior Chairman
—
$13.37M (8) scheduled
−$13.37M
49,774
0.0389%
$4.00M
−54.9%
Buesinger Robert F.
EVP, PEM Segment Head
$7.75K (1)
$13.32M (21) scheduled
−$13.32M
34,482
0.0270%
$2.77M
+82,000%
Teel Lawrence E.
EVP and Special Advisor to CEO
—
$5.15M (5) scheduled
−$5.15M
4,903
0.0038%
$394.30K
+463.6%
Kenner Andrew
SVP, Operations
—
$3.86M (3) scheduled
−$3.86M
20,362
0.0159%
$1.64M
+85.5%
Mangieri George J
VP & Chief Accounting Officer
—
$2.82M (7) scheduled
−$2.82M
4,671
0.0037%
$375.64K
−74.3%
Ederington L. Benjamin
EVP, Legal & External Affairs
—
$2.53M (3) scheduled
−$2.53M
80,158
0.0627%
$6.45M
—
Kearns Roger L.
EVP and COO
$149.45K (1)
$2.44M (3) scheduled
−$2.30M
45,785
0.0358%
$3.68M
—
LUKENS MAX L
Director
—
$1.95M (2)
−$1.95M
9,122
0.0071%
$733.59K
−51.7%
Mattina Michael J.
Sr. VP, Polyethylene
—
$982.78K (1) scheduled
−$982.78K
6,506
0.0051%
$523.21K
+7.3%
BLAKELY ROBERT T
Director
—
$851.41K (2)
−$851.41K
10,989
0.0086%
$883.74K
−22.1%
Chao David Tsung-Hung
Director
—
$584.39K (3)
−$584.39K
30,503
0.0239%
$2.45M
+4,571%
Zoeller Johnathan Stevan
VP and CAO
—
$256.55K (3) scheduled
−$256.55K
4,416
0.0035%
$355.13K
—
RILEY H JOHN JR
Director
—
$232.62K (1)
−$232.62K
22,652
0.0177%
$1.82M
+9.5%
Jenkins Dorothy C
Director
—
$30.38K (2) scheduled
−$30.38K
73,778
0.0577%
$5.93M
+87.9%
Chao Catherine T.
Director
—
—
—
27,171
0.0213%
$2.19M
+1,259%
NORTHCUTT R BRUCE
Director
—
—
—
23,351
0.0183%
$1.88M
+658.9%
Graff Michael J
Director
—
—
—
23,310
0.0182%
$1.87M
+657.6%
Janssens Thomas J.
SVP, Ops - PEM & Corp Logistic
—
—
—
17,127
0.0134%
$1.38M
+195.6%
Sheets Jeffrey Wayne
Director
—
—
—
14,927
0.0117%
$1.20M
—
Lubel Kimberly S
Director
—
—
—
13,821
0.0108%
$1.11M
—
Szwejbka Scott Thomas
SVP, HIP Segment Head
—
—
—
13,773
0.0108%
$1.11M
+136.7%
MCCOLLUM MARK A
Director
—
—
—
11,824
0.0093%
$950.89K
—
Haas Marius
Director
—
—
—
11,631
0.0091%
$935.37K
—
Chao John Tsung-chen
Director
—
—
—
7,888
0.0062%
$634.35K
—
Sabat Carolyn Chao
Director
—
—
—
5,748
0.0045%
$462.25K
—
Holy Jeffrey Adam
VP and CAO
—
—
—
5,124
0.0040%
$412.07K
+70.8%
CREGG ROGER A
Director
—
—
—
3,507
0.0027%
$282.03K
—

Individual transactions

236
Insider
Date
Role
Action
Shares
Price
Amount
Chao Albert
11 Aug 2026
Executive Chairman
Sold after exercise
31,384
$80.42
$2.52M
Chao Albert
11 Aug 2026
Executive Chairman
Sold after exercise
7,489
$79.70
$596.87K
Bender Mark Steven
27 Mar 2026
EVP & CFO
Sell
16,413
$112.54
$1.85M
Buesinger Robert F.
27 Mar 2026
EVP, PEM Segment Head
Sell
4,000
$115.25
$461.00K
Bender Mark Steven
27 Feb 2026
EVP & CFO
Sold after exercise
421
$101.52
$42.74K
Bender Mark Steven
27 Feb 2026
EVP & CFO
Sold after exercise
16,988
$100.91
$1.71M
Chao Albert
22 Dec 2025
Executive Chairman
Sold after exercise
521
$74.44
$38.78K
Chao Albert
22 Dec 2025
Executive Chairman
Sold after exercise
30,604
$73.80
$2.26M
Chao Albert
22 Dec 2025
Executive Chairman
Sold after exercise
9,711
$72.82
$707.14K
Buesinger Robert F.
27 May 2025
EVP, PEM Segment Head
Sell indirect
83
$72.70
$6.03K
Buesinger Robert F.
22 Apr 2025
EVP, PEM Segment Head
Buy indirect
83
$93.39
$7.75K
Chao David Tsung-Hung
29 Nov 2024
Director
Sell
1,750
$129.08
$225.89K
Chao David Tsung-Hung
22 Nov 2024
Director
Sell
1,750
$130.00
$227.50K
Janssens Thomas J.
23 Aug 2024
SVP, Ops - PEM & Corp Logistic
Exercised, kept
4,020
$86.54
$347.88K
Janssens Thomas J.
23 Aug 2024
SVP, Ops - PEM & Corp Logistic
Exercised, kept
6,507
$65.81
$428.24K
Janssens Thomas J.
23 Aug 2024
SVP, Ops - PEM & Corp Logistic
Exercised, kept
4,337
$79.83
$346.22K
Chao Albert
16 Aug 2024
Executive Chairman
Exercised, kept
45,298
$68.09
$3.08M
Buesinger Robert F.
9 May 2024
EVP, HIP, IT & Digital
Sell
3,500
$158.50
$554.75K
Buesinger Robert F.
7 May 2024
EVP, HIP, IT & Digital
Exercised, kept
3,133
$122.65
$384.26K
Bender Mark Steven
3 May 2024
EVP & CFO
Sell
4,950
$152.19
$753.34K
Zoeller Johnathan Stevan
21 Mar 2024
VP and CAO
Exercised, kept
68
$122.65
$8.34K
Zoeller Johnathan Stevan
21 Mar 2024
VP and CAO
Exercised, kept
296
$108.12
$32.00K
Zoeller Johnathan Stevan
21 Mar 2024
VP and CAO
Exercised, kept
293
$86.54
$25.36K
Buesinger Robert F.
15 Mar 2024
EVP, HIP, IT & Digital
Sell
3,878
$144.50
$560.37K
Buesinger Robert F.
13 Mar 2024
EVP, HIP, IT & Digital
Sell
122
$144.50
$17.63K
Zoeller Johnathan Stevan
8 Mar 2024
VP and CAO
Exercised, kept
649
$122.65
$79.60K
Zoeller Johnathan Stevan
8 Mar 2024
VP and CAO
Exercised, kept
1,408
$108.12
$152.23K
Zoeller Johnathan Stevan
8 Mar 2024
VP and CAO
Exercised, kept
719
$86.54
$62.22K
Buesinger Robert F.
7 Mar 2024
EVP, HIP, IT & Digital
Exercised, kept
7,665
$108.12
$828.72K
Buesinger Robert F.
7 Mar 2024
EVP, HIP, IT & Digital
Exercised, kept
5,005
$86.54
$433.12K
Bender Mark Steven
6 Mar 2024
EVP & CFO
Sell
4,804
$141.02
$677.46K
Bender Mark Steven
26 Feb 2024
EVP & CFO
Sell
4,854
$137.57
$667.76K
Chao James
30 Nov 2023
Chairman
Exercised, kept
9,177
$108.12
$992.19K
Chao James
30 Nov 2023
Chairman
Exercised, kept
24,437
$86.54
$2.11M
Chao James
30 Nov 2023
Chairman
Exercised, kept
34,599
$65.81
$2.28M
Buesinger Robert F.
15 Nov 2023
EVP, HIP, IT & Digital
Sell
4,215
$130.50
$550.06K
Chao Albert
31 Aug 2023
President & CEO
Exercised, kept
19,988
$63.98
$1.28M
Chao James
31 Aug 2023
Chairman
Exercised, kept
43,738
$65.81
$2.88M
Chao James
31 Aug 2023
Chairman
Exercised, kept
55,766
$79.83
$4.45M
Chao James
31 Aug 2023
Chairman
Exercised, kept
35,321
$107.75
$3.81M
Chao James
31 Aug 2023
Chairman
Exercised, kept
62,197
$61.87
$3.85M
Chao James
31 Aug 2023
Chairman
Exercised, kept
47,569
$44.42
$2.11M
Buesinger Robert F.
30 Aug 2023
EVP, HIP, IT & Digital
Exercised, kept
4,857
$86.54
$420.31K
Chao Albert
30 Aug 2023
President & CEO
Exercised, kept
20,000
$63.98
$1.28M
Ederington L. Benjamin
30 Aug 2023
EVP, PEM, GC and CAO
Exercised, kept
13,734
$61.87
$849.65K
Chao James
30 Aug 2023
Chairman
Exercised, kept
17,735
$44.42
$787.79K
Chao James
30 Aug 2023
Chairman
Exercised, kept
12,321
$68.09
$838.94K
Janssens Thomas J.
29 Aug 2023
SVP, Ops - PEM & Corp Logistic
Exercised, kept
1,370
$108.12
$148.12K
Janssens Thomas J.
29 Aug 2023
SVP, Ops - PEM & Corp Logistic
Exercised, kept
2,485
$107.75
$267.76K
Buesinger Robert F.
29 Aug 2023
EVP, HIP, IT & Digital
Exercised, kept
8,100
$65.81
$533.08K
Chao David Tsung-Hung
23 Aug 2023
Director
Sell
1,000
$131.00
$131.00K
Bender Mark Steven
7 Aug 2023
EVP & CFO
Exercised, kept
12,606
$86.54
$1.09M
Bender Mark Steven
7 Aug 2023
EVP & CFO
Exercised, kept
12,033
$107.75
$1.30M
Zoeller Johnathan Stevan
19 May 2023
VP and CAO
Exercised, kept
1,963
$86.54
$169.87K
Bender Mark Steven
8 May 2023
EVP & CFO
Exercised, kept
1,084
$65.81
$71.34K
Bender Mark Steven
27 Feb 2023
EVP and CFO
Exercised, kept
3,000
$65.81
$197.44K
Zoeller Johnathan Stevan
27 Feb 2023
VP and CAO
Exercised, kept
1,038
$65.81
$68.31K
Zoeller Johnathan Stevan
27 Feb 2023
VP and CAO
Exercised, kept
651
$79.83
$51.97K
Buesinger Robert F.
31 Aug 2022
EVP, HIP, IT & Digital
Sell
1,000
$98.94
$98.94K
Zoeller Johnathan Stevan
26 Aug 2022
VP & Chief Accounting Officer
Sell
542
$107.08
$58.04K
Buesinger Robert F.
27 May 2022
EVP, HIP, IT & Digital
Sold after exercise
14,427
$129.47
$1.87M
Chao Albert
19 May 2022
President & CEO
Sold after exercise
5,045
$129.38
$652.71K
Chao Albert
19 May 2022
President & CEO
Sold after exercise
20,815
$130.20
$2.71M
Chao Albert
19 May 2022
President & CEO
Sold after exercise
12,016
$131.11
$1.58M
Kearns Roger L.
17 May 2022
COO and EVP - PEM
Sold after exercise
8,388
$136.24
$1.14M
Ederington L. Benjamin
5 May 2022
EVP, GC, CAO and Secretary
Sold after exercise
3,143
$139.26
$437.69K
Ederington L. Benjamin
5 May 2022
EVP, GC, CAO and Secretary
Sold after exercise
9,426
$140.00
$1.32M
Bender Mark Steven
31 Mar 2022
EVP and CFO
Sold after exercise
100
$124.99
$12.50K
Bender Mark Steven
31 Mar 2022
EVP and CFO
Sold after exercise
5,921
$124.34
$736.23K
Bender Mark Steven
30 Mar 2022
EVP and CFO
Sold after exercise
3,062
$125.10
$383.04K
Bender Mark Steven
30 Mar 2022
EVP and CFO
Sold after exercise
2,938
$124.50
$365.77K
Bender Mark Steven
29 Mar 2022
EVP and CFO
Sold after exercise
4,000
$122.44
$489.75K
Bender Mark Steven
25 Mar 2022
EVP and CFO
Sold after exercise
2,947
$125.74
$370.56K
Bender Mark Steven
25 Mar 2022
EVP and CFO
Sold after exercise
5,053
$125.11
$632.17K
Kearns Roger L.
25 Mar 2022
COO and EVP - PEM
Sold after exercise
2,861
$126.40
$361.64K
Kearns Roger L.
25 Mar 2022
COO and EVP - PEM
Sold after exercise
7,472
$125.84
$940.29K
Bender Mark Steven
24 Mar 2022
EVP and CFO
Sold after exercise
8,000
$125.38
$1.00M
Bender Mark Steven
23 Mar 2022
EVP and CFO
Sold after exercise
344
$125.69
$43.24K
Bender Mark Steven
23 Mar 2022
EVP and CFO
Sold after exercise
5,656
$125.14
$707.77K
Buesinger Robert F.
10 Mar 2022
EVP, HIP, IT & Digital
Sold after exercise
22,555
$117.61
$2.65M
Buesinger Robert F.
9 Mar 2022
EVP, HIP, IT & Digital
Sell
2,730
$115.55
$315.45K
Zoeller Johnathan Stevan
1 Mar 2022
VP and CAO
Sold after exercise
1,006
$110.39
$111.05K
Chao James
2 Dec 2021
Chairman
Exercised, kept
16,420
$30.05
$493.46K
Chao Albert
2 Dec 2021
President & CEO
Sold after exercise
20,327
$92.29
$1.88M
Chao Albert
2 Dec 2021
President & CEO
Sold after exercise
7,585
$91.52
$694.18K
Chao Albert
2 Dec 2021
President & CEO
Sold after exercise
1,175
$90.12
$105.89K
Chao Albert
2 Dec 2021
President & CEO
Sold after exercise
1,700
$89.25
$151.73K
Chao Albert
1 Dec 2021
President & CEO
Sold after exercise
3,789
$94.80
$359.20K
Chao Albert
1 Dec 2021
President & CEO
Sold after exercise
4,300
$93.98
$404.11K
Chao Albert
1 Dec 2021
President & CEO
Sold after exercise
4,200
$92.78
$389.68K
Chao Albert
1 Dec 2021
President & CEO
Sold after exercise
5,842
$91.83
$536.47K
Chao Albert
1 Dec 2021
President & CEO
Sold after exercise
3,000
$90.47
$271.41K
Chao Albert
1 Dec 2021
President & CEO
Sold after exercise
9,656
$89.47
$863.92K
Bender Mark Steven
11 Nov 2021
EVP and CFO
Sell
2,369
$101.57
$240.62K
Bender Mark Steven
8 Nov 2021
EVP and CFO
Sell
631
$100.77
$63.59K
Bender Mark Steven
5 Nov 2021
EVP and CFO
Sell
6,356
$98.80
$627.95K
Chao Albert
11 Aug 2021
President & CEO
Buy
3,000
$86.21
$258.63K
Buesinger Robert F.
10 May 2021
EVP, Vinyl Products
Sell
5,000
$105.00
$525.00K
Bender Mark Steven
24 Mar 2021
EVP and CFO
Exercised, kept
4,000
$79.83
$319.32K
Bender Mark Steven
23 Mar 2021
EVP and CFO
Exercised, kept
3,000
$79.83
$239.49K
Bender Mark Steven
12 Mar 2021
EVP and CFO
Sold after exercise
5,820
$95.23
$554.24K
Bender Mark Steven
12 Mar 2021
EVP and CFO
Sold after exercise
9,920
$94.39
$936.35K
Bender Mark Steven
9 Mar 2021
EVP and CFO
Sold after exercise
25,811
$92.27
$2.38M
Buesinger Robert F.
8 Mar 2021
EVP, Vinyl Products
Sold after exercise
7,861
$95.00
$746.80K
Buesinger Robert F.
8 Mar 2021
EVP, Vinyl Products
Sold after exercise
8,652
$92.50
$800.31K
Zoeller Johnathan Stevan
25 Feb 2021
VP and CAO
Sold after exercise
1,006
$86.94
$87.46K
Teel Lawrence E.
25 Feb 2021
EVP and Special Advisor to CEO
Sold after exercise
4,902
$87.14
$427.16K
Teel Lawrence E.
25 Feb 2021
EVP and Special Advisor to CEO
Sold after exercise
28,547
$86.93
$2.48M
Buesinger Robert F.
24 Nov 2020
EVP, Vinyl Products
Sold after exercise
4,581
$77.50
$355.03K
Kenner Andrew
23 Nov 2020
SVP - Chemical Manufacturing
Sell
5,924
$74.75
$442.82K
Bender Mark Steven
6 Nov 2020
EVP and CFO
Sell
1,600
$74.79
$119.67K
Chao Albert
6 Nov 2020
President & CEO
Sold after exercise
4,198
$75.12
$315.35K
Chao Albert
6 Nov 2020
President & CEO
Sold after exercise
10,334
$74.29
$767.71K
Chao Albert
6 Nov 2020
President & CEO
Sold after exercise
11,978
$73.30
$877.99K
Chao Albert
6 Nov 2020
President & CEO
Sold after exercise
28,638
$72.08
$2.06M
Bender Mark Steven
5 Nov 2020
EVP and CFO
Sold after exercise
420
$74.54
$31.31K
Bender Mark Steven
5 Nov 2020
EVP and CFO
Sold after exercise
24,576
$73.98
$1.82M
TTWFGP LLC
27 Mar 2020
10% owner
Buy indirect
11,287
$40.31
$454.98K
TTWFGP LLC
27 Mar 2020
10% owner
Buy indirect
89,443
$39.49
$3.53M
TTWFGP LLC
27 Mar 2020
10% owner
Buy indirect
42,295
$38.49
$1.63M
TTWFGP LLC
27 Mar 2020
10% owner
Buy indirect
16,975
$37.58
$637.92K
TTWFGP LLC
26 Mar 2020
10% owner
Buy indirect
8,800
$41.99
$369.51K
TTWFGP LLC
26 Mar 2020
10% owner
Buy indirect
94,001
$41.15
$3.87M
TTWFGP LLC
26 Mar 2020
10% owner
Buy indirect
42,199
$40.47
$1.71M
TTWFGP LLC
25 Mar 2020
10% owner
Buy indirect
24,064
$42.69
$1.03M
TTWFGP LLC
25 Mar 2020
10% owner
Buy indirect
33,358
$42.02
$1.40M
TTWFGP LLC
25 Mar 2020
10% owner
Buy indirect
14,025
$40.96
$574.46K
TTWFGP LLC
25 Mar 2020
10% owner
Buy indirect
27,671
$39.83
$1.10M
TTWFGP LLC
25 Mar 2020
10% owner
Buy indirect
24,231
$38.87
$941.86K
TTWFGP LLC
25 Mar 2020
10% owner
Buy indirect
6,651
$37.98
$252.60K
TTWFGP LLC
24 Mar 2020
10% owner
Buy indirect
15,031
$37.60
$565.17K
TTWFGP LLC
24 Mar 2020
10% owner
Buy indirect
67,812
$36.86
$2.50M
TTWFGP LLC
24 Mar 2020
10% owner
Buy indirect
57,419
$36.00
$2.07M
TTWFGP LLC
24 Mar 2020
10% owner
Buy indirect
4,738
$34.94
$165.55K
TTWFGP LLC
19 Mar 2020
10% owner
Buy indirect
21,777
$39.09
$851.26K
TTWFGP LLC
19 Mar 2020
10% owner
Buy indirect
54,388
$38.22
$2.08M
TTWFGP LLC
19 Mar 2020
10% owner
Buy indirect
22,497
$36.20
$814.39K
TTWFGP LLC
19 Mar 2020
10% owner
Buy indirect
3,002
$35.23
$105.76K
TTWFGP LLC
18 Mar 2020
10% owner
Buy indirect
2,300
$33.03
$75.97K
TTWFGP LLC
18 Mar 2020
10% owner
Buy indirect
36,790
$32.13
$1.18M
TTWFGP LLC
18 Mar 2020
10% owner
Buy indirect
99,940
$31.31
$3.13M
TTWFGP LLC
18 Mar 2020
10% owner
Buy indirect
25,970
$30.58
$794.16K
TTWFGP LLC
18 Mar 2020
10% owner
Buy indirect
63,336
$37.32
$2.36M
TTWFGP LLC
17 Mar 2020
10% owner
Buy indirect
100
$35.06
$3.51K
TTWFGP LLC
17 Mar 2020
10% owner
Buy indirect
42,821
$34.46
$1.48M
TTWFGP LLC
17 Mar 2020
10% owner
Buy indirect
69,003
$33.40
$2.30M
TTWFGP LLC
17 Mar 2020
10% owner
Buy indirect
41,076
$32.51
$1.34M
TTWFGP LLC
17 Mar 2020
10% owner
Buy indirect
2,840
$31.63
$89.83K
TTWFGP LLC
17 Mar 2020
10% owner
Buy indirect
9,160
$30.21
$276.72K
Kearns Roger L.
16 Mar 2020
EVP, Vinyls Chemicals
Buy
5,000
$29.89
$149.45K
TTWFGP LLC
16 Mar 2020
10% owner
Buy indirect
12,325
$32.63
$402.16K
TTWFGP LLC
16 Mar 2020
10% owner
Buy indirect
57,203
$31.88
$1.82M
TTWFGP LLC
16 Mar 2020
10% owner
Buy indirect
90,472
$30.97
$2.80M
TTWFGP LLC
13 Mar 2020
10% owner
Buy indirect
46,263
$33.52
$1.55M
TTWFGP LLC
13 Mar 2020
10% owner
Buy indirect
113,737
$32.71
$3.72M
Chao Albert
21 Feb 2020
President & CEO
Sold after exercise
51,592
$62.42
$3.22M
Chao Albert
21 Feb 2020
President & CEO
Exercised, kept
57,800
$10.26
$593.03K
Mangieri George J
8 Nov 2019
SVP & Chief Accounting Officer
Sell
1,583
$75.05
$118.80K
Jenkins Dorothy C
20 Aug 2019
Director
Sold after exercise
390
$62.30
$24.30K
RILEY H JOHN JR
19 Mar 2019
Director
Sell
3,327
$69.92
$232.62K
Chao Albert
16 Nov 2018
President & CEO
Sold after exercise
7,120
$72.09
$513.30K
Chao Albert
16 Nov 2018
President & CEO
Sold after exercise
17,389
$71.62
$1.25M
Chao Albert
15 Nov 2018
President & CEO
Sold after exercise
1,100
$71.98
$79.18K
Chao Albert
15 Nov 2018
President & CEO
Sold after exercise
16,309
$71.48
$1.17M
Chao Albert
15 Nov 2018
President & CEO
Sold after exercise
7,100
$70.43
$500.06K
Chao Albert
14 Nov 2018
President & CEO
Sold after exercise
900
$72.50
$65.25K
Chao Albert
14 Nov 2018
President & CEO
Sold after exercise
13,202
$71.77
$947.49K
Chao Albert
14 Nov 2018
President & CEO
Sold after exercise
10,519
$70.92
$745.95K
Chao Albert
13 Nov 2018
President & CEO
Sold after exercise
1,200
$73.20
$87.84K
Chao Albert
13 Nov 2018
President & CEO
Sold after exercise
3,600
$72.47
$260.89K
Chao Albert
13 Nov 2018
President & CEO
Sold after exercise
10,200
$71.28
$727.06K
Chao Albert
12 Nov 2018
President & CEO
Sold after exercise
6,900
$75.10
$518.19K
Chao Albert
12 Nov 2018
President & CEO
Sold after exercise
18,100
$74.30
$1.34M
Chao James
24 May 2018
Chairman
Sell
33,305
$120.69
$4.02M
Bender Mark Steven
21 May 2018
EVP and CFO
Sold after exercise
261
$123.59
$32.26K
Bender Mark Steven
21 May 2018
EVP and CFO
Sold after exercise
9,505
$123.04
$1.17M
Bender Mark Steven
21 May 2018
EVP and CFO
Sold after exercise
2,300
$121.90
$280.37K
Buesinger Robert F.
15 May 2018
EVP, Vinyl Products
Sell
1,447
$118.88
$172.01K
Bender Mark Steven
11 May 2018
EVP and CFO
Sold after exercise
23,506
$117.33
$2.76M
Jenkins Dorothy C
10 May 2018
Director
Sold after exercise
52
$117.01
$6.08K
Kenner Andrew
9 Mar 2018
SVP - Chemical Manufacturing
Sold after exercise
6,028
$120.00
$723.36K
Kenner Andrew
5 Mar 2018
SVP - Chemical Manufacturing
Sold after exercise
24,318
$110.61
$2.69M
Mangieri George J
5 Mar 2018
SVP & Chief Accounting Officer
Sell
2,161
$113.41
$245.08K
Buesinger Robert F.
5 Mar 2018
EVP, Vinyl Products
Sold after exercise
4,034
$113.00
$455.84K
Buesinger Robert F.
5 Mar 2018
EVP, Vinyl Products
Sold after exercise
15,315
$113.05
$1.73M
Mangieri George J
28 Feb 2018
SVP & Chief Accounting Officer
Sold after exercise
4,335
$111.22
$482.14K
BLAKELY ROBERT T
27 Feb 2018
Director
Sell
4,038
$111.00
$448.22K
Bender Mark Steven
26 Feb 2018
EVP and CFO
Sell
3,500
$112.06
$392.21K
Bender Mark Steven
26 Feb 2018
EVP and CFO
Sell
1,500
$110.84
$166.26K
Teel Lawrence E.
26 Feb 2018
EVP, Olefins
Sold after exercise
9,351
$111.86
$1.05M
Bender Mark Steven
22 Feb 2018
EVP and CFO
Sell
4,000
$110.97
$443.88K
Ederington L. Benjamin
22 Feb 2018
SVP, GC, CAO and Secretary
Sold after exercise
6,942
$111.45
$773.67K
LUKENS MAX L
22 Feb 2018
Director
Sell
100
$111.41
$11.14K
LUKENS MAX L
22 Feb 2018
Director
Sell
17,458
$110.93
$1.94M
Bender Mark Steven
22 Feb 2018
EVP and CFO
Sell
2,000
$110.64
$221.27K
Bender Mark Steven
4 Dec 2017
EVP and CFO
Sold after exercise
6,500
$97.83
$635.90K
Buesinger Robert F.
1 Dec 2017
EVP, Vinyls Products
Sell
2,674
$98.50
$263.39K
Chao Albert
29 Nov 2017
President & CEO
Sold after exercise
16,844
$95.25
$1.60M
Chao Albert
28 Nov 2017
President & CEO
Sold after exercise
1,010
$94.85
$95.80K
Chao Albert
28 Nov 2017
President & CEO
Sold after exercise
23,990
$94.55
$2.27M
Chao Albert
27 Nov 2017
President & CEO
Sold after exercise
2,966
$94.25
$279.53K
Chao Albert
27 Nov 2017
President & CEO
Sold after exercise
22,034
$93.92
$2.07M
Chao James
24 Nov 2017
Chairman
Sold after exercise
66,026
$94.61
$6.25M
Chao Albert
24 Nov 2017
President & CEO
Sold after exercise
20,000
$94.58
$1.89M
Chao James
22 Nov 2017
Chairman
Sold after exercise
10,109
$95.20
$962.41K
Chao Albert
22 Nov 2017
President & CEO
Sold after exercise
101
$95.60
$9.66K
Chao Albert
22 Nov 2017
President & CEO
Sold after exercise
24,899
$94.89
$2.36M
Bender Mark Steven
21 Nov 2017
EVP and CFO
Sell
20,382
$94.27
$1.92M
Chao Albert
21 Nov 2017
President & CEO
Sold after exercise
25,000
$94.34
$2.36M
Buesinger Robert F.
17 Nov 2017
EVP, Vinyls Products
Sold after exercise
5,214
$93.82
$489.20K
BLAKELY ROBERT T
14 Nov 2017
Director
Sell
4,367
$92.33
$403.19K
Mangieri George J
13 Nov 2017
SVP & Chief Accounting Officer
Sold after exercise
2,915
$94.70
$276.05K
Mangieri George J
13 Nov 2017
SVP & Chief Accounting Officer
Sold after exercise
10,466
$94.37
$987.72K
Teel Lawrence E.
13 Nov 2017
EVP, Olefins
Sold after exercise
800
$93.99
$75.19K
Teel Lawrence E.
13 Nov 2017
EVP, Olefins
Sold after exercise
11,912
$93.99
$1.12M
Bender Mark Steven
13 Nov 2017
EVP and CFO
Sold after exercise
600
$94.60
$56.76K
Bender Mark Steven
13 Nov 2017
EVP and CFO
Sold after exercise
29,204
$94.01
$2.75M
Bender Mark Steven
15 Aug 2017
Executive VP & CFO
Sell
13,794
$70.22
$968.62K
Jenkins Dorothy C
14 Aug 2017
Director
Exercised, kept
3,840
$13.56
$52.08K
Mangieri George J
17 May 2017
VP & Chief Accounting Officer
Sell
6,578
$62.21
$409.20K
Bender Mark Steven
10 Mar 2017
Sr VP, CFO and Treasurer
Sell
12,000
$64.32
$771.78K
Buesinger Robert F.
1 Mar 2017
Sr. Vice President, Vinyls
Sold after exercise
8,193
$66.25
$542.79K
Chao Albert
23 Feb 2017
President & CEO
Sold after exercise
42,180
$63.35
$2.67M
Chao Albert
17 Nov 2016
President & CEO
Sell indirect
300
$54.57
$16.37K
Chao Albert
17 Nov 2016
President & CEO
Sell indirect
9,700
$53.82
$522.09K
Chao James
17 Nov 2016
Chairman
Sell indirect
300
$54.57
$16.37K
Chao James
17 Nov 2016
Chairman
Sell indirect
9,700
$53.82
$522.09K
Chao Albert
16 Nov 2016
President & CEO
Sell indirect
10,000
$54.45
$544.45K
Chao James
16 Nov 2016
Chairman
Sell indirect
10,000
$54.45
$544.45K
Chao Albert
15 Nov 2016
President & CEO
Sell indirect
10,000
$53.06
$530.60K
Chao James
15 Nov 2016
Chairman
Sell indirect
10,000
$53.06
$530.60K
Mattina Michael J.
15 Nov 2016
Sr. VP, Polyethylene
Sold after exercise
18,274
$53.78
$982.78K
Chao Albert
14 Nov 2016
President & CEO
Sell indirect
10,000
$52.84
$528.44K
Chao James
14 Nov 2016
Chairman
Sell indirect
10,000
$52.84
$528.44K
Mangieri George J
11 Nov 2016
VP & Chief Accounting Officer
Sell
5,696
$52.91
$301.37K
Buesinger Robert F.
10 Nov 2016
Sr. Vice President, Vinyls
Sold after exercise
2,880
$54.42
$156.74K

What was left out

Form 4 filings counted 527
Amendments (4/A) skipped 24
Filings about a different issuer 1
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 103
Sales at will 51
Transactions with no price 0
Shares from compensation/vesting 4,040,969
Sales filed before the plan box existed 38
History held since 6 Sep 2016