Company · CIK 0001262823 · SIC 2860 — Industrial Organic Chemicals · NYSE
WESTLAKE CORP · WLK
Insider activity reported against this company. All insider holders · Files at: WLKP. On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 30, 2017 FMForm 4 → | Oct 2, 2:46 pm EDT | L. Benjamin EderingtonSVP, GC, CAO and Secretary | 8,841 | $82.94 | $177,575 | 10,283 | — | plan? |
| Aug 21, 2017 MForm 4 → | Aug 22, 9:20 am EDT | H John Riley Jr.Director | 960 | — | — | 21,652 | — | plan? |
| Aug 21, 2017 MForm 4 → | Aug 22, 9:17 am EDT | R Bruce NorthcuttDirector | 960 | — | — | 5,040 | — | plan? |
| Aug 21, 2017 MForm 4 → | Aug 22, 9:11 am EDT | Max L LukensDirector | 960 | — | — | 20,838 | — | plan? |
| Aug 21, 2017 MForm 4 → | Aug 22, 9:09 am EDT | Dorothy C JenkinsDirector, 10% Owner | 960 | — | — | 47,078 | — | plan? |
| Aug 21, 2017 MForm 4 → | Aug 22, 9:01 am EDT | Michael J GraffDirector | 960 | — | — | 5,040 | — | plan? |
| Aug 21, 2017 MForm 4 → | Aug 22, 8:58 am EDT | Robert T BlakelyDirector | 960 | — | — | 16,067 | — | plan? |
| Aug 17, 2017 MForm 4/A → | Sep 21, 5:22 pm EDT | H John Riley Jr.Director | 1,003 | — | — | 21,692 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:56 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 1,003 | — | — | 46,118 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:53 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 1,003 | — | — | 46,118 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:53 pm EDT | H John Riley Jr.Director | 1,003 | — | — | 20,692 | — | plan? amended |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:51 pm EDT | R Bruce NorthcuttDirector | 1,003 | — | — | 4,080 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:50 pm EDT | Max L LukensDirector | 1,003 | — | — | 19,878 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:49 pm EDT | Michael J GraffDirector | 1,003 | — | — | 4,080 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:48 pm EDT | Robert T BlakelyDirector | 1,003 | — | — | 15,107 | — | plan? |
| Aug 17, 2017 MForm 4 → | Aug 17, 12:47 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 1,003 | — | — | 46,118 | — | plan? |
| Aug 15, 2017 SForm 4 → | Aug 16, 4:56 pm EDT | Mark Steven BenderExecutive VP & CFO | 13,794 | $70.22 | $968,620 | 44,449 | −23.7% | plan? |
| Aug 14, 2017 MForm 4 → | Aug 15, 6:25 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 3,840 | $13.56 | $52,080 | 45,115 | — | plan? |
| May 17, 2017 SForm 4 → | May 18, 4:47 pm EDT | George J MangieriVP & Chief Accounting Officer | 6,578 | $62.21 | $409,198 | 6,577 | −50.0% | plan? |
| Mar 10, 2017 SForm 4 → | Mar 13, 4:01 pm EDT | Mark Steven BenderSr VP, CFO and Treasurer | 12,000 | $64.32 | $771,785 | 58,243 | −17.1% | plan? |
| Mar 1, 2017 SForm 4 → | Mar 3, 6:47 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 8,193 | $66.25 | $542,786 | 9,309 | −46.8% | plan? |
| Mar 1, 2017 MForm 4 → | Mar 3, 6:47 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 8,193 | $45.00 | $368,721 | 17,502 | — | plan? |
| Feb 23, 2017 SForm 4 → | Feb 28, 4:32 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 42,180 | $63.35 | $2,672,124 | 274,018 | −13.3% | plan? late |
| Feb 23, 2017 MForm 4 → | Feb 28, 4:32 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 42,180 | $15.81 | $666,655 | 316,198 | — | plan? late |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:19 pm EST | George J MangieriVP & Chief Accounting Officer | 1,292 | $64.01 | $20,483 | 13,155 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:18 pm EST | Lawrence E. TeelSVP, Olefins | 1,454 | $64.01 | $23,044 | 1,604 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:18 pm EST | Andrew KennerVP - Manufacturing | 2,196 | $64.01 | $33,413 | 12,707 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:17 pm EST | Mark Steven BenderSr VP, CFO and Treasurer | 4,061 | $64.01 | $58,185 | 70,243 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:16 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 2,194 | $64.01 | $33,285 | 9,309 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:15 pm EST | Michael J. MattinaSr. VP, Polyethylene | 877 | $64.01 | $13,890 | 6,506 | — | plan? |
| Feb 14, 2017 MForm 4 → | Feb 16, 4:14 pm EST | L. Benjamin EderingtonVP, General Counsel, Corp Secy | 342 | — | — | 5,724 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:13 pm EST | James ChaoChairman, Director, 10% Owner | 13,111 | $64.01 | $181,596 | 118,969 | — | plan? |
| Feb 14, 2017 FMForm 4 → | Feb 16, 4:12 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 16,360 | $64.01 | $225,443 | 274,018 | — | plan? |
| Nov 16, 2016 SForm 4 → | Nov 18, 4:34 pm EST | James ChaoChairman, Director, 10% Owner | 20,000 | $54.15 | $1,082,916 | 0 | −100% | plan? |
| Nov 16, 2016 SForm 4 → | Nov 18, 4:33 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 20,000 | $54.15 | $1,082,916 | 0 | −100% | plan? |
| Nov 15, 2016 SForm 4 → | Nov 17, 4:15 pm EST | Michael J. MattinaSr. VP, Polyethylene | 18,274 | $53.78 | $982,776 | 6,063 | −75.1% | plan? |
| Nov 15, 2016 MForm 4 → | Nov 17, 4:15 pm EST | Michael J. MattinaSr. VP, Polyethylene | 18,274 | $19.43 | $355,117 | 24,337 | — | plan? |
| Nov 14, 2016 SForm 4 → | Nov 16, 4:12 pm EST | James ChaoChairman, Director, 10% Owner | 20,000 | $52.95 | $1,059,034 | 20,000 | −50.0% | plan? |
| Nov 14, 2016 SForm 4 → | Nov 16, 4:12 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 20,000 | $52.95 | $1,059,034 | 20,000 | −50.0% | plan? |
| Nov 11, 2016 SForm 4 → | Nov 14, 4:36 pm EST | George J MangieriVP & Chief Accounting Officer | 5,696 | $52.91 | $301,367 | 12,503 | −31.3% | plan? |
| Nov 10, 2016 SForm 4 → | Nov 14, 4:12 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 2,880 | $54.42 | $156,737 | 8,155 | −26.1% | plan? |
| Nov 10, 2016 MForm 4 → | Nov 14, 4:12 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 2,880 | $30.05 | $86,551 | 11,035 | — | plan? |
| Sep 30, 2016 FMForm 4 → | Oct 4, 5:04 pm EDT | L. Benjamin EderingtonVP, General Counsel, Corp Secy | 6,104 | $53.51 | $70,526 | 5,382 | — | plan? |
| Sep 9, 2016 FForm 4 → | Sep 12, 4:58 pm EDT | Simon BatesVP, Building Products | 13,212 | $51.11 | $675,256 | 14,930 | — | plan? |
| Sep 1, 2016 AForm 4 → | Sep 6, 4:20 pm EDT | Simon BatesVP, Building Products | 28,142 | — | — | 28,142 | — | plan? |
| Aug 24, 2016 FForm 4 → | Aug 25, 5:46 pm EDT | Michael J. MattinaSr. VP, Polyethylene | 2,443 | $51.93 | $126,865 | 6,063 | — | plan? |
| Aug 23, 2016 SForm 4 → | Aug 25, 4:29 pm EDT | George J MangieriVP & Chief Accounting Officer | 30,714 | $52.00 | $1,597,156 | 23,895 | −56.2% | plan? |
| Aug 23, 2016 FMForm 4 → | Aug 25, 4:29 pm EDT | George J MangieriVP & Chief Accounting Officer | 36,410 | $21.46 | $781,228 | 18,199 | — | plan? |
| Aug 23, 2016 FMForm 4 → | Aug 25, 4:28 pm EDT | Mark Steven BenderSr VP, CFO and Treasurer | 37,463 | $22.31 | $835,910 | 68,000 | — | plan? |
| Aug 22, 2016 MForm 4 → | Aug 24, 4:09 pm EDT | H John Riley Jr.Director | 1,548 | — | — | 20,689 | — | plan? |
| Aug 22, 2016 MForm 4 → | Aug 24, 4:08 pm EDT | Michael J GraffDirector | 1,548 | — | — | 3,077 | — | plan? |
| Aug 22, 2016 MForm 4 → | Aug 24, 4:08 pm EDT | Max L LukensDirector | 1,548 | — | — | 18,875 | — | plan? |
| Aug 22, 2016 MForm 4 → | Aug 24, 4:07 pm EDT | Robert T BlakelyDirector | 1,548 | — | — | 14,104 | — | plan? |
| Aug 22, 2016 MForm 4 → | Aug 24, 4:07 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 1,548 | — | — | 41,275 | — | plan? |
| Aug 22, 2016 MForm 4 → | Aug 24, 4:06 pm EDT | R Bruce NorthcuttDirector | 1,548 | — | — | 3,077 | — | plan? |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:06 pm EST | Lawrence E. TeelSVP, Olefins | 1,031 | $43.52 | $11,185 | 870 | — | plan? late |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:05 pm EST | Michael J. MattinaSr. VP, Polyethylene | 1,188 | $43.52 | $12,882 | 8,506 | — | plan? late |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:05 pm EST | George J MangieriVP & Chief Accounting Officer | 1,813 | $43.52 | $19,628 | 23,895 | — | plan? late |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:04 pm EST | Andrew KennerVP - Manufacturing | 2,941 | $43.52 | $30,595 | 11,555 | — | plan? late |
| Feb 15, 2016 MForm 4 → | Feb 18, 4:04 pm EST | James ChaoChairman, Director, 10% Owner | 11,406 | — | — | 111,532 | — | plan? late |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:03 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 18,177 | $43.52 | $171,077 | 264,702 | — | plan? late |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:03 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 2,781 | $43.52 | $29,028 | 8,155 | — | plan? late |
| Feb 15, 2016 FMForm 4 → | Feb 18, 4:02 pm EST | Mark Steven BenderSr VP, CFO and Treasurer | 5,212 | $43.52 | $51,005 | 44,035 | — | plan? late |
| Nov 10, 2015 SForm 4 → | Nov 12, 4:05 pm EST | George J MangieriVP & Chief Accounting Officer | 2,785 | $60.21 | $167,673 | 22,984 | −10.8% | plan? |
| Nov 10, 2015 MForm 4 → | Nov 12, 4:05 pm EST | George J MangieriVP & Chief Accounting Officer | 1,974 | $30.05 | $59,324 | 25,769 | — | plan? |
| Sep 30, 2015 MForm 4 → | Oct 1, 4:03 pm EDT | L. Benjamin EderingtonVP, General Counsel, Corp Secy | 1,914 | — | — | 1,914 | — | plan? |
| Aug 22, 2015 MForm 4 → | Aug 25, 4:50 pm EDT | H John Riley Jr.Director | 943 | — | — | 19,141 | — | plan? |
| Aug 22, 2015 MForm 4 → | Aug 25, 4:48 pm EDT | R Bruce NorthcuttDirector | 943 | — | — | 1,529 | — | plan? |
| Aug 22, 2015 MForm 4 → | Aug 25, 4:47 pm EDT | Max L LukensDirector | 943 | — | — | 17,327 | — | plan? |
| Aug 22, 2015 MForm 4 → | Aug 25, 4:45 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 943 | — | — | 39,727 | — | plan? |
| Aug 22, 2015 MForm 4 → | Aug 25, 4:44 pm EDT | Michael J GraffDirector | 943 | — | — | 1,529 | — | plan? |
| Aug 22, 2015 MForm 4 → | Aug 25, 4:43 pm EDT | Robert T BlakelyDirector | 943 | — | — | 12,556 | — | plan? |
| Aug 11, 2015 SForm 4 → | Aug 13, 4:06 pm EDT | Robert T BlakelyDirector | 5,143 | $63.00 | $324,009 | 11,613 | −30.7% | plan? |
| Aug 11, 2015 MForm 4 → | Aug 13, 4:06 pm EDT | Robert T BlakelyDirector | 1,776 | $12.26 | $21,765 | 16,756 | — | plan? |
| May 26, 2015 SForm 4 → | May 27, 4:26 pm EDT | Jeffrey L TaylorSr VP, Polyethylene | 8,143 | $70.57 | $574,657 | 20,206 | −28.7% | plan? |
| May 26, 2015 MForm 4 → | May 27, 4:26 pm EDT | Jeffrey L TaylorSr VP, Polyethylene | 6,846 | $43.18 | $295,599 | 28,349 | — | plan? |
| May 11, 2015 SForm 4 → | May 12, 4:11 pm EDT | Lawrence E. TeelSVP, Olefins | 2,125 | $70.25 | $149,277 | 353 | −85.8% | plan? |
| May 11, 2015 MForm 4 → | May 12, 4:11 pm EDT | Lawrence E. TeelSVP, Olefins | 1,584 | $36.83 | $58,336 | 2,478 | — | plan? |
| May 6, 2015 SForm 4 → | May 8, 4:25 pm EDT | Andrew KennerVP - Manufacturing | 10,779 | $72.28 | $779,091 | 10,020 | −51.8% | plan? |
| May 6, 2015 MForm 4 → | May 8, 4:25 pm EDT | Andrew KennerVP - Manufacturing | 8,618 | $27.96 | $240,963 | 20,799 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:13 pm EST | Lawrence E. TeelSVP, Olefins | 342 | $66.79 | $22,841 | 894 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:11 pm EST | Jeffrey L TaylorSr VP, Polyethylene | 1,037 | $66.79 | $69,258 | 21,503 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:11 pm EST | George J MangieriVP & Chief Accounting Officer | 681 | $66.79 | $45,482 | 23,795 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:09 pm EST | Andrew KennerVP - Manufacturing | 1,017 | $66.79 | $67,922 | 12,181 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:08 pm EST | David R HansenSr VP Adminstration | 1,073 | $66.79 | $71,663 | 25,807 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:07 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 964 | $66.79 | $64,383 | 6,708 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:06 pm EST | Mark Steven BenderSr VP, CFO and Treasurer | 1,823 | $66.79 | $121,753 | 41,167 | — | plan? |
| Feb 18, 2015 FForm 4 → | Feb 20, 4:05 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 7,821 | $66.79 | $522,340 | 254,387 | — | plan? |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:22 pm EST | H John Riley Jr.Director | 586 | — | — | 18,198 | — | plan? late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:20 pm EST | R Bruce NorthcuttDirector | 586 | — | — | 586 | — | plan? late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:19 pm EST | Max L LukensDirector | 586 | — | — | 16,384 | — | plan? late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:18 pm EST | Michael J GraffDirector | 586 | — | — | 586 | — | plan? late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:17 pm EST | Robert T BlakelyDirector | 586 | — | — | 14,980 | — | plan? late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:16 pm EST | Dorothy C JenkinsDirector, 10% Owner | 586 | — | — | 38,784 | — | plan? late |
| Nov 26, 2012 SForm 4/A → | Dec 19, 2017, 3:21 pm EST | Mark Steven BenderEVP and CFO | 4,407 | $75.00 | $330,525 | 36,281 | −10.8% | plan? |
| Nov 26, 2012 MForm 4/A → | Dec 19, 2017, 3:21 pm EST | Mark Steven BenderEVP and CFO | 4,407 | $14.24 | $62,756 | 40,688 | — | plan? |
| Mar 9, 2011 GForm 4 → | Feb 9, 2018, 10:08 am EST | James ChaoChairman, Director, 10% Owner | 15,868 | — | — | 78,101 | — | plan? late |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 21, 2015 AForm 4 → | Aug 25, 4:47 pm EDT | Max L LukensDirector | 1,809 | — | — | 1,809 | — | |
| Aug 21, 2015 AForm 4 → | Aug 25, 4:44 pm EDT | Dorothy C JenkinsDirector, 10% Owner | 1,809 | — | — | 1,809 | — | |
| Aug 21, 2015 AForm 4 → | Aug 25, 4:43 pm EDT | Michael J GraffDirector | 1,809 | — | — | 1,809 | — | |
| Aug 21, 2015 AForm 4 → | Aug 25, 4:42 pm EDT | Robert T BlakelyDirector | 1,809 | — | — | 1,809 | — | |
| Aug 11, 2015 MForm 4 → | Aug 13, 4:06 pm EDT | Robert T BlakelyDirector | 1,776 | — | — | 0 | — | |
| May 26, 2015 MForm 4 → | May 27, 4:26 pm EDT | Jeffrey L TaylorSr VP, Polyethylene | 6,846 | — | — | 2,014 | — | |
| May 11, 2015 MForm 4 → | May 12, 4:11 pm EDT | Lawrence E. TeelSVP, Olefins | 1,584 | — | — | 0 | — | |
| May 6, 2015 MForm 4 → | May 8, 4:25 pm EDT | Andrew KennerVP - Manufacturing | 8,618 | — | — | 0 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:29 pm EST | Lawrence E. TeelSVP, Olefins | 7,638 | — | — | 1,762 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:28 pm EST | Jeffrey L TaylorSr VP, Polyethylene | 7,027 | — | — | 1,621 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:27 pm EST | George J MangieriVP & Chief Accounting Officer | 3,959 | — | — | 913 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:27 pm EST | Andrew KennerVP - Manufacturing | 7,809 | — | — | 1,802 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:26 pm EST | David R HansenSr VP Adminstration | 9,814 | — | — | 2,264 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:26 pm EST | L. Benjamin EderingtonVP, General Counsel, Corp Secy | 7,638 | — | — | 1,762 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:25 pm EST | James ChaoChairman, Director, 10% Owner | 47,106 | — | — | 10,868 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:25 pm EST | Albert ChaoPresident & CEO, Director, 10% Owner | 58,883 | — | — | 13,585 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:24 pm EST | Robert F. BuesingerSr. Vice President, Vinyls | 8,590 | — | — | 1,982 | — | |
| Feb 20, 2015 AForm 4 → | Feb 24, 4:24 pm EST | Mark Steven BenderSr VP, CFO and Treasurer | 15,685 | — | — | 3,619 | — | |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:22 pm EST | H John Riley Jr.Director | 586 | — | — | 1,174 | — | late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:20 pm EST | R Bruce NorthcuttDirector | 586 | — | — | 1,174 | — | late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:19 pm EST | Max L LukensDirector | 586 | — | — | 1,174 | — | late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:18 pm EST | Michael J GraffDirector | 586 | — | — | 1,174 | — | late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:17 pm EST | Robert T BlakelyDirector | 586 | — | — | 1,174 | — | late |
| Aug 23, 2014 MForm 4 → | Feb 20, 2015, 4:16 pm EST | Dorothy C JenkinsDirector, 10% Owner | 586 | — | — | 1,174 | — | late |
Filed by this entity as an insider elsewhere — common stock
No reported common-stock activity in this period.
Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.