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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview
Overview of all insider trading transactions in WESTLAKE CHEMICAL CORP. Get notifications about new insider transactions in WESTLAKE CHEMICAL CORP for free.
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| Date | Ticker | Company | Owner | Relationship | Transaction | Code | Cost ($) | Shares | Transaction Value ($) | Total Shares | % Holdings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 20 2018 | WLK | WESTLAKE CHEMICAL ... | BLAKELY ROBERT T | Director | Buy | M | 0.00 | 1,003 | 0 | 8,665 | 7.7 K to 8.7 K (+13.09 %) |
| Aug 20 2018 | WLK | WESTLAKE CHEMICAL ... | Chao John Tsung-chen | Director | Option Exercise | A | 0.00 | 1,409 | 0 | 1,409 | |
| May 25 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Sell | S | 120.69 | 33,305 | 4,019,580 | 51,492 | 84.8 K to 51.5 K (-39.28 %) |
| May 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 68.09 | 12,066 | 821,574 | 0 | |
| May 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 123.59 | 261 | 32,257 | 15,810 | 16.1 K to 15.8 K (-1.62 %) |
| May 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 123.04 | 9,505 | 1,169,495 | 16,071 | 25.6 K to 16.1 K (-37.16 %) |
| May 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 121.90 | 2,300 | 280,370 | 25,576 | 27.9 K to 25.6 K (-8.25 %) |
| May 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 68.09 | 12,066 | 821,574 | 27,876 | 15.8 K to 27.9 K (+76.32 %) |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | MCCOLLUM MARK A | Director | Option Exercise | A | 0.00 | 987 | 0 | 987 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | RILEY H JOHN JR | Director | Option Exercise | A | 0.00 | 144 | 0 | 144 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | NORTHCUTT R BRUCE | Director | Option Exercise | A | 0.00 | 144 | 0 | 144 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | LUKENS MAX L | Director | Option Exercise | A | 0.00 | 103 | 0 | 103 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | Jenkins Dorothy C | Director | Option Exercise | A | 0.00 | 103 | 0 | 103 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | Graff Michael J | Director | Option Exercise | A | 0.00 | 103 | 0 | 103 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | BLAKELY ROBERT T | Director | Option Exercise | A | 0.00 | 103 | 0 | 103 | |
| May 21 2018 | WLK | WESTLAKE CHEMICAL ... | BLAKELY ROBERT T | Director | Option Exercise | A | 0.00 | 103 | 0 | 103 | |
| May 16 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Sell | S | 118.88 | 1,447 | 172,012 | 2,642 | 4.1 K to 2.6 K (-35.39 %) |
| May 14 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 22.92 | 6,680 | 153,072 | 0 | |
| May 14 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 30.05 | 16,826 | 505,663 | 0 | |
| May 14 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 117.33 | 23,506 | 2,757,959 | 15,810 | 39.3 K to 15.8 K (-59.79 %) |
| May 14 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 22.92 | 6,680 | 153,072 | 39,316 | 32.6 K to 39.3 K (+20.47 %) |
| May 14 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 30.05 | 16,826 | 505,663 | 32,636 | 15.8 K to 32.6 K (+106.43 %) |
| May 11 2018 | WLK | WESTLAKE CHEMICAL ... | Jenkins Dorothy C | Director | Option Exercise | M | 10.41 | 7,652 | 79,676 | 0 | |
| May 11 2018 | WLK | WESTLAKE CHEMICAL ... | Jenkins Dorothy C | Director | Sell | S | 117.01 | 52 | 6,085 | 54,678 | 54.7 K to 54.7 K (-0.10 %) |
| May 11 2018 | WLK | WESTLAKE CHEMICAL ... | Jenkins Dorothy C | Director | Buy | M | 10.41 | 7,652 | 79,676 | 54,730 | 47.1 K to 54.7 K (+16.25 %) |
| May 01 2018 | WLK | WESTLAKE CHEMICAL ... | Kearns Roger L. | EVP, Vinyls Chemica ... | Option Exercise | A | 0.00 | 18,448 | 0 | 18,448 | |
| Mar 12 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | M | 61.87 | 3,412 | 211,083 | 6,928 | |
| Mar 12 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Sell | S | 120.00 | 6,028 | 723,360 | 11,437 | 17.5 K to 11.4 K (-34.51 %) |
| Mar 12 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Buy | M | 61.87 | 3,412 | 211,083 | 17,465 | 14.1 K to 17.5 K (+24.28 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | M | 61.87 | 4,261 | 263,607 | 8,652 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | M | 44.42 | 4,446 | 197,491 | 4,581 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | M | 68.09 | 6,608 | 449,939 | 0 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Sell | S | 113.00 | 4,034 | 455,842 | 4,089 | 8.1 K to 4.1 K (-49.66 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Sell | S | 113.05 | 15,315 | 1,731,361 | 8,123 | 23.4 K to 8.1 K (-65.34 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Buy | M | 61.87 | 4,261 | 263,607 | 23,438 | 19.2 K to 23.4 K (+22.22 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Buy | M | 44.42 | 4,446 | 197,491 | 19,177 | 14.7 K to 19.2 K (+30.18 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Buy | M | 68.09 | 6,608 | 449,939 | 14,731 | 8.1 K to 14.7 K (+81.35 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Sell | S | 113.41 | 2,161 | 245,079 | 2,160 | 4.3 K to 2.2 K (-50.01 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | M | 44.42 | 7,145 | 317,381 | 3,682 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | M | 68.09 | 6,007 | 409,017 | 0 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | M | 63.98 | 5,214 | 333,579 | 0 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | M | 45.70 | 5,952 | 271,992 | 0 | |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Sell | S | 110.61 | 24,318 | 2,689,814 | 14,053 | 38.4 K to 14.1 K (-63.38 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Buy | M | 44.42 | 7,145 | 317,381 | 38,371 | 31.2 K to 38.4 K (+22.88 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Buy | M | 68.09 | 6,007 | 409,017 | 31,226 | 25.2 K to 31.2 K (+23.82 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Buy | M | 63.98 | 5,214 | 333,579 | 25,219 | 20 K to 25.2 K (+26.06 %) |
| Mar 06 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Buy | M | 45.70 | 5,952 | 271,992 | 20,005 | 14.1 K to 20 K (+42.35 %) |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Option Exercise | M | 68.09 | 1,036 | 70,541 | 0 | |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Option Exercise | M | 44.42 | 1,810 | 80,400 | 1,865 | |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Option Exercise | M | 61.87 | 1,489 | 92,117 | 3,026 | |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Sell | S | 111.22 | 4,335 | 482,139 | 4,321 | 8.7 K to 4.3 K (-50.08 %) |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Buy | M | 68.09 | 1,036 | 70,541 | 8,656 | 7.6 K to 8.7 K (+13.60 %) |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Buy | M | 44.42 | 1,810 | 80,400 | 7,620 | 5.8 K to 7.6 K (+31.15 %) |
| Mar 01 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Buy | M | 61.87 | 1,489 | 92,117 | 5,810 | 4.3 K to 5.8 K (+34.46 %) |
| Feb 28 2018 | WLK | WESTLAKE CHEMICAL ... | BLAKELY ROBERT T | Director | Sell | S | 111.00 | 4,038 | 448,218 | 7,662 | 11.7 K to 7.7 K (-34.51 %) |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Option Exercise | M | 44.42 | 3,941 | 175,059 | 4,060 | |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Option Exercise | M | 61.87 | 3,412 | 211,083 | 6,928 | |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Option Exercise | M | 68.09 | 1,998 | 136,044 | 0 | |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Sell | S | 111.86 | 9,351 | 1,046,003 | 2,122 | 11.5 K to 2.1 K (-81.50 %) |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Buy | M | 44.42 | 3,941 | 175,059 | 11,473 | 7.5 K to 11.5 K (+52.32 %) |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Buy | M | 61.87 | 3,412 | 211,083 | 7,532 | 4.1 K to 7.5 K (+82.82 %) |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Buy | M | 68.09 | 1,998 | 136,044 | 4,120 | 2.1 K to 4.1 K (+94.16 %) |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 112.06 | 3,500 | 392,210 | 15,810 | 19.3 K to 15.8 K (-18.13 %) |
| Feb 27 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 110.84 | 1,500 | 166,260 | 19,310 | 20.8 K to 19.3 K (-7.21 %) |
| Feb 26 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 110.64 | 2,000 | 221,270 | 20,810 | 22.8 K to 20.8 K (-8.77 %) |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | LUKENS MAX L | Director | Sell | S | 111.41 | 100 | 11,141 | 3,280 | 3.4 K to 3.3 K (-2.96 %) |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | LUKENS MAX L | Director | Sell | S | 110.93 | 17,458 | 1,936,616 | 3,380 | 20.8 K to 3.4 K (-83.78 %) |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Option Exercise | M | 68.09 | 5,876 | 400,097 | 0 | |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Option Exercise | M | 63.98 | 1,066 | 68,200 | 0 | |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Sell | S | 111.45 | 6,942 | 773,665 | 12,045 | 19 K to 12 K (-36.56 %) |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Buy | M | 68.09 | 5,876 | 400,097 | 18,987 | 13.1 K to 19 K (+44.82 %) |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Buy | M | 63.98 | 1,066 | 68,200 | 13,111 | 12 K to 13.1 K (+8.85 %) |
| Feb 23 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 110.97 | 4,000 | 443,880 | 22,810 | 26.8 K to 22.8 K (-14.92 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Option Exercise | M | 0.00 | 1,762 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Buy | M | 0.00 | 1,762 | 0 | 12,045 | 10.3 K to 12 K (+17.14 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | M | 0.00 | 13,585 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Payment of Exercise | F | 106.98 | 5,202 | 556,510 | 282,401 | 287.6 K to 282.4 K (-1.81 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Buy | M | 0.00 | 13,585 | 0 | 287,603 | 274 K to 287.6 K (+4.96 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | M | 0.00 | 1,802 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Payment of Exercise | F | 106.98 | 456 | 48,783 | 14,053 | 14.5 K to 14.1 K (-3.14 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Buy | M | 0.00 | 1,802 | 0 | 14,509 | 12.7 K to 14.5 K (+14.18 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Option Exercise | M | 0.00 | 1,762 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Payment of Exercise | F | 106.98 | 444 | 47,499 | 2,122 | 2.6 K to 2.1 K (-17.30 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Buy | M | 0.00 | 1,762 | 0 | 2,566 | 804 to 2.6 K (+219.15 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 3,619 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 106.98 | 876 | 93,714 | 26,810 | 27.7 K to 26.8 K (-3.16 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 3,619 | 0 | 27,686 | 24.1 K to 27.7 K (+15.04 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | M | 0.00 | 10,868 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Payment of Exercise | F | 106.98 | 4,172 | 446,321 | 84,797 | 89 K to 84.8 K (-4.69 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Buy | M | 0.00 | 10,868 | 0 | 88,969 | 78.1 K to 89 K (+13.92 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Option Exercise | M | 0.00 | 913 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Payment of Exercise | F | 106.98 | 254 | 27,173 | 4,321 | 4.6 K to 4.3 K (-5.55 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Buy | M | 0.00 | 913 | 0 | 4,575 | 3.7 K to 4.6 K (+24.93 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | M | 0.00 | 1,982 | 0 | 0 | |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Payment of Exercise | F | 106.98 | 494 | 52,848 | 8,123 | 8.6 K to 8.1 K (-5.73 %) |
| Feb 22 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Buy | M | 0.00 | 1,982 | 0 | 8,617 | 6.6 K to 8.6 K (+29.87 %) |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Option Exercise | A | 0.00 | 693 | 0 | 693 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Mangieri George J | SVP & Chief Account ... | Option Exercise | A | 107.75 | 2,582 | 278,211 | 2,582 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | A | 0.00 | 1,924 | 0 | 1,924 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Kenner Andrew | SVP - Chemical Manu ... | Option Exercise | A | 107.75 | 7,168 | 772,352 | 7,168 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Option Exercise | A | 0.00 | 2,295 | 0 | 2,295 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Teel Lawrence E. | EVP, Olefins | Option Exercise | A | 107.75 | 8,550 | 921,263 | 8,550 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Option Exercise | A | 0.00 | 2,472 | 0 | 2,472 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Ederington L. Benjamin | SVP, GC, CAO and Se ... | Option Exercise | A | 107.75 | 9,209 | 992,270 | 9,209 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | A | 0.00 | 2,569 | 0 | 2,569 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | A | 107.75 | 9,571 | 1,031,275 | 9,571 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 0.00 | 3,230 | 0 | 3,230 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 107.75 | 12,033 | 1,296,556 | 12,033 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | A | 0.00 | 9,480 | 0 | 9,480 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | A | 107.75 | 35,321 | 3,805,838 | 35,321 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | A | 0.00 | 11,983 | 0 | 11,983 | |
| Feb 20 2018 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | A | 107.75 | 44,647 | 4,810,714 | 44,647 | |
| Feb 09 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Gift | G | 0.00 | 1,000 | 0 | 78,101 | 79.1 K to 78.1 K (-1.26 %) |
| Feb 09 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Gift | G | 0.00 | 4,000 | 0 | 79,101 | 83.1 K to 79.1 K (-4.81 %) |
| Feb 09 2018 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Gift | G | 0.00 | 10,868 | 0 | 83,101 | 94 K to 83.1 K (-11.57 %) |
| Jan 09 2018 | WLK | WESTLAKE CHEMICAL ... | Haas Marius | Director | Option Exercise | A | 0.00 | 1,090 | 0 | 1,090 | |
| Jan 09 2018 | WLK | WESTLAKE CHEMICAL ... | Sheets Jeffrey Wayne | Director | Option Exercise | A | 0.00 | 1,090 | 0 | 1,090 | |
| Jan 09 2018 | WLK | WESTLAKE CHEMICAL ... | Chao David Tsung-Hung | Director | Option Exercise | A | 0.00 | 1,090 | 0 | 1,090 | |
| Dec 06 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Gift | G | 0.00 | 15,000 | 0 | 93,969 | 109 K to 94 K (-13.77 %) |
| Dec 05 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 22.92 | 6,500 | 148,948 | 6,680 | |
| Dec 05 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 97.83 | 6,500 | 635,902 | 24,067 | 30.6 K to 24.1 K (-21.26 %) |
| Dec 05 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 22.92 | 6,500 | 148,948 | 30,567 | 24.1 K to 30.6 K (+27.01 %) |
| Dec 04 2017 | WLK | WESTLAKE CHEMICAL ... | Buesinger Robert F. | EVP, Vinyls Product ... | Sell | S | 98.50 | 2,674 | 263,389 | 6,635 | 9.3 K to 6.6 K (-28.72 %) |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | M | 9.65 | 16,844 | 162,460 | 0 | |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | M | 9.65 | 25,000 | 241,125 | 16,844 | |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 95.25 | 16,844 | 1,604,340 | 274,018 | 290.9 K to 274 K (-5.79 %) |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Buy | M | 9.65 | 16,844 | 162,460 | 290,862 | 274 K to 290.9 K (+6.15 %) |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 94.85 | 1,010 | 95,803 | 274,018 | 275 K to 274 K (-0.37 %) |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 94.55 | 23,990 | 2,268,278 | 275,028 | 299 K to 275 K (-8.02 %) |
| Nov 30 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Buy | M | 9.65 | 25,000 | 241,125 | 299,018 | 274 K to 299 K (+9.12 %) |
| Nov 29 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Gift | G | 0.00 | 10,000 | 0 | 108,969 | 119 K to 109 K (-8.41 %) |
| Nov 28 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | M | 9.65 | 25,000 | 241,125 | 41,844 | |
| Nov 28 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 94.25 | 2,966 | 279,534 | 274,018 | 277 K to 274 K (-1.07 %) |
| Nov 28 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 93.92 | 22,034 | 2,069,521 | 276,984 | 299 K to 277 K (-7.37 %) |
| Nov 28 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Buy | M | 9.65 | 25,000 | 241,125 | 299,018 | 274 K to 299 K (+9.12 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | M | 9.65 | 20,000 | 192,900 | 66,844 | |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Option Exercise | M | 9.65 | 25,000 | 241,125 | 86,844 | |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 94.58 | 20,000 | 1,891,680 | 274,018 | 294 K to 274 K (-6.80 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Buy | M | 9.65 | 20,000 | 192,900 | 294,018 | 274 K to 294 K (+7.30 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 95.60 | 101 | 9,656 | 274,018 | 274.1 K to 274 K (-0.04 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Sell | S | 94.89 | 24,899 | 2,362,741 | 274,119 | 299 K to 274.1 K (-8.33 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao Albert | President & CEO | Buy | M | 9.65 | 25,000 | 241,125 | 299,018 | 274 K to 299 K (+9.12 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | M | 63.98 | 32,000 | 2,047,280 | 0 | |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | M | 68.09 | 23,917 | 1,628,509 | 12,321 | |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | M | 45.70 | 10,109 | 461,956 | 0 | |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Option Exercise | M | 45.70 | 10,109 | 461,956 | 10,109 | |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Sell | S | 94.61 | 66,026 | 6,246,786 | 118,969 | 185 K to 119 K (-35.69 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Buy | M | 63.98 | 32,000 | 2,047,280 | 184,995 | 153 K to 185 K (+20.92 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Buy | M | 68.09 | 23,917 | 1,628,509 | 152,995 | 129.1 K to 153 K (+18.53 %) |
| Nov 27 2017 | WLK | WESTLAKE CHEMICAL ... | Chao James | Chairman | Buy | M | 45.70 | 10,109 | 461,956 | 129,078 | 119 K to 129.1 K (+8.50 %) |