Mark Steven Bender Insider Trading Transactions
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General | Insider Transactions | Monthly Overview
Get the latest insider transactions of Mark Steven Bender. Mark Steven Bender is EVP and CFO in WESTLAKE CHEMICAL CORP ($WLK) and Executive VP & CFO in WESTLAKE CHEMICAL CORP ($WLK) and Sr VP, CFO and Treasurer in WESTLAKE CHEMICAL CORP ($WLK) and Treasurer in WESTLAKE CHEMICAL CORP ($WLK) and Vice President & Treasurer in WESTLAKE CHEMICAL CORP ($WLK) and Vice President & Treasurer in WESTLAKE CHEMICAL CORP ($WLK) and VP, CFO and Treasurer in WESTLAKE CHEMICAL CORP ($WLK) and SVP, CFO in Westlake Chemical Partners LP ($WLKP) and SVP, CFO and Treasurer in Westlake Chemical Partners LP ($WLKP).
Latest Insider Trading Transactions of Mark Steven Bender
| 1 Week | 2 Weeks | 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | |
|---|---|---|---|---|---|---|---|
| No. of Purchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Value of Purchases ($) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| No. of Sales | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Value of Sales ($) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Date | Ticker | Company | Owner | Relationship | Transaction | Code | Cost ($) | Shares | Transaction Value ($) | Total Shares | % Holdings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 15 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 61.87 | 5,000 | 309,325 | 0 | |
| Mar 15 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 45.70 | 10,740 | 490,791 | 0 | |
| Mar 15 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 95.23 | 5,820 | 554,239 | 31,380 | 37.2 K to 31.4 K (-15.65 %) |
| Mar 15 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 94.39 | 9,920 | 936,349 | 37,200 | 47.1 K to 37.2 K (-21.05 %) |
| Mar 15 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 61.87 | 5,000 | 309,325 | 47,120 | 42.1 K to 47.1 K (+11.87 %) |
| Mar 15 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 45.70 | 10,740 | 490,791 | 42,120 | 31.4 K to 42.1 K (+34.23 %) |
| Mar 10 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 61.87 | 15,995 | 989,531 | 5,000 | |
| Mar 10 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 63.98 | 9,816 | 628,003 | 0 | |
| Mar 10 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 92.27 | 25,811 | 2,381,630 | 31,380 | 57.2 K to 31.4 K (-45.13 %) |
| Mar 10 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 61.87 | 15,995 | 989,531 | 57,191 | 41.2 K to 57.2 K (+38.83 %) |
| Mar 10 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 63.98 | 9,816 | 628,003 | 41,196 | 31.4 K to 41.2 K (+31.28 %) |
| Feb 22 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 0.00 | 5,558 | 0 | 5,558 | |
| Feb 22 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 86.54 | 19,100 | 1,652,874 | 19,100 | |
| Feb 18 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 3,230 | 0 | 0 | |
| Feb 18 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 85.08 | 808 | 68,746 | 31,380 | 32.2 K to 31.4 K (-2.51 %) |
| Feb 18 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 3,230 | 0 | 32,188 | 29 K to 32.2 K (+11.15 %) |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 1,478 | 0 | 0 | |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 87.38 | 4 | 350 | 28,958 | 29 K to 29 K (-0.01 %) |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 85.73 | 398 | 34,121 | 28,962 | 28.6 K to 29 K (+1.39 %) |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 1,478 | 0 | 29,360 | 27.9 K to 29.4 K (+5.30 %) |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 1,478 | 0 | 0 | |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 87.38 | 4 | 350 | 28,958 | 29 K to 29 K (-0.01 %) |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 85.73 | 398 | 34,121 | 28,962 | 28.6 K to 29 K (+1.39 %) |
| Feb 17 2021 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 1,478 | 0 | 29,360 | 27.9 K to 29.4 K (+5.30 %) |
| Nov 06 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 44.42 | 24,996 | 1,110,322 | 0 | |
| Nov 06 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 74.54 | 420 | 31,307 | 29,482 | 29.9 K to 29.5 K (-1.40 %) |
| Nov 06 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 73.98 | 24,576 | 1,818,132 | 29,902 | 54.5 K to 29.9 K (-45.11 %) |
| Nov 06 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 44.42 | 24,996 | 1,110,322 | 54,478 | 29.5 K to 54.5 K (+84.78 %) |
| Mar 16 2020 | WLKP | Westlake Chemical ... | Bender Mark Steven | SVP, CFO | Buy | P | 14.91 | 1,000 | 14,914 | 14,000 | 13 K to 14 K (+7.69 %) |
| Mar 16 2020 | WLKP | Westlake Chemical ... | Bender Mark Steven | SVP, CFO | Buy | P | 15.07 | 1,000 | 15,073 | 13,000 | 12 K to 13 K (+8.33 %) |
| Feb 19 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 5,375 | 0 | 0 | |
| Feb 19 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 60.52 | 1,457 | 88,176 | 29,482 | 30.9 K to 29.5 K (-4.71 %) |
| Feb 19 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 5,375 | 0 | 30,939 | 25.6 K to 30.9 K (+21.03 %) |
| Feb 18 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 0.00 | 1,478 | 0 | 1,478 | |
| Feb 18 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 0.00 | 7,150 | 0 | 7,150 | |
| Feb 18 2020 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 65.81 | 30,243 | 1,990,367 | 30,243 | |
| Dec 03 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 8,324 | 0 | 0 | |
| Dec 03 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 67.01 | 3,374 | 226,081 | 25,564 | 28.9 K to 25.6 K (-11.66 %) |
| Dec 03 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 8,324 | 0 | 28,938 | 20.6 K to 28.9 K (+40.38 %) |
| Feb 20 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 0.00 | 6,566 | 0 | 0 | |
| Feb 20 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 75.83 | 152 | 11,526 | 20,614 | 20.8 K to 20.6 K (-0.73 %) |
| Feb 20 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Payment of Exercise | F | 73.29 | 1,610 | 117,997 | 20,766 | 22.4 K to 20.8 K (-7.20 %) |
| Feb 20 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 0.00 | 6,566 | 0 | 22,376 | 15.8 K to 22.4 K (+41.53 %) |
| Feb 19 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 0.00 | 4,755 | 0 | 4,755 | |
| Feb 19 2019 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | A | 79.83 | 18,061 | 1,441,810 | 18,061 | |
| 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 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 %) |
| Feb 27 2018 | WLKP | Westlake Chemical ... | Bender Mark Steven | SVP, CFO and Treasu ... | Buy | P | 23.77 | 2,000 | 47,535 | 12,000 | 10 K to 12 K (+20.00 %) |
| 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 ... | 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 ... | 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 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 | |
| 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 %) |
| Nov 22 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 94.27 | 20,382 | 1,921,309 | 24,067 | 44.4 K to 24.1 K (-45.85 %) |
| Nov 15 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Option Exercise | M | 10.26 | 29,804 | 305,864 | 0 | |
| Nov 15 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 94.60 | 600 | 56,760 | 44,449 | 45 K to 44.4 K (-1.33 %) |
| Nov 15 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Sell | S | 94.01 | 29,204 | 2,745,322 | 45,049 | 74.3 K to 45 K (-39.33 %) |
| Nov 15 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | EVP and CFO | Buy | M | 10.26 | 29,804 | 305,864 | 74,253 | 44.4 K to 74.3 K (+67.05 %) |
| Aug 16 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Executive VP & CFO | Sell | S | 70.22 | 13,794 | 968,620 | 44,449 | 58.2 K to 44.4 K (-23.68 %) |
| Mar 13 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Sell | S | 64.32 | 12,000 | 771,785 | 58,243 | 70.2 K to 58.2 K (-17.08 %) |
| Feb 22 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 0.00 | 5,375 | 0 | 5,375 | |
| Feb 22 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 61.87 | 20,995 | 1,298,856 | 20,995 | |
| Feb 16 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | M | 0.00 | 3,152 | 0 | 0 | |
| Feb 16 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Payment of Exercise | F | 64.01 | 909 | 58,185 | 70,243 | 71.2 K to 70.2 K (-1.28 %) |
| Feb 16 2017 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Buy | M | 0.00 | 3,152 | 0 | 71,152 | 68 K to 71.2 K (+4.64 %) |
| Dec 05 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 0.00 | 8,324 | 0 | 8,324 | |
| Aug 25 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | M | 15.81 | 30,714 | 485,435 | 0 | |
| Aug 25 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Payment of Exercise | F | 51.93 | 6,749 | 350,476 | 68,000 | 74.7 K to 68 K (-9.03 %) |
| Aug 25 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Buy | M | 15.81 | 30,714 | 485,435 | 74,749 | 44 K to 74.7 K (+69.75 %) |
| Feb 22 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 0.00 | 6,566 | 0 | 6,566 | |
| Feb 22 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 44.42 | 24,996 | 1,110,322 | 24,996 | |
| Feb 18 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | M | 0.00 | 4,040 | 0 | 0 | |
| Feb 18 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Payment of Exercise | F | 43.52 | 1,172 | 51,005 | 44,035 | 45.2 K to 44 K (-2.59 %) |
| Feb 18 2016 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Buy | M | 0.00 | 4,040 | 0 | 45,207 | 41.2 K to 45.2 K (+9.81 %) |
| Feb 24 2015 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 0.00 | 3,619 | 0 | 3,619 | |
| Feb 24 2015 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 68.09 | 12,066 | 821,574 | 12,066 | |
| Feb 21 2008 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Option Exercise | A | 19.29 | 7,767 | 149,825 | 7,767 | |
| Feb 21 2008 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Sr VP, CFO and Trea ... | Grant | A | 0.00 | 3,266 | 0 | 22,888 | 19.6 K to 22.9 K (+16.64 %) |
| Mar 19 2007 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | VP, CFO and Treasur ... | Payment of Exercise | F | 27.55 | 51 | 1,405 | 19,754 | 19.8 K to 19.8 K (-0.26 %) |
| Mar 05 2007 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | VP, CFO and Treasur ... | Option Exercise | A | 31.61 | 30,714 | 970,870 | 30,714 | |
| Mar 05 2007 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | VP, CFO and Treasur ... | Option Exercise | A | 31.61 | 2,364 | 74,726 | 2,364 | |
| Mar 05 2007 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | VP, CFO and Treasur ... | Grant | A | 0.00 | 15,818 | 0 | 19,805 | 4 K to 19.8 K (+396.74 %) |
| Mar 05 2007 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | VP, CFO and Treasur ... | Grant | A | 0.00 | 1,135 | 0 | 3,987 | 2.9 K to 4 K (+39.80 %) |
| Sep 05 2006 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Vice President & T ... | Payment of Exercise | F | 29.83 | 15 | 447 | 2,852 | 2.9 K to 2.9 K (-0.52 %) |
| Mar 22 2006 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Vice President & Tr ... | Option Exercise | A | 36.10 | 922 | 33,284 | 922 | |
| Mar 22 2006 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Vice President & Tr ... | Grant | A | 0.00 | 562 | 0 | 2,867 | 2.3 K to 2.9 K (+24.38 %) |
| Sep 13 2005 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Treasurer | Option Exercise | A | 27.22 | 235 | 6,397 | 235 | |
| Sep 13 2005 | WLK | WESTLAKE CHEMICAL ... | Bender Mark Steven | Treasurer | Grant | A | 0.00 | 152 | 0 | 152 | 0 to 152 |
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