Form4insider filings, from the source

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 ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market activity at this companybuys $0 · 0sales $75.7M · 53net −$75.7M
$10k$10k$1M$1M$100M$100MbuyssalesNov 2012Mar 2015Jun 2017Oct 2019Jan 2022Apr 2024Aug 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 30, 2017 FMForm 4 →Oct 2, 2:46 pm EDTL. Benjamin EderingtonSVP, GC, CAO and Secretary8,841$82.94$177,57510,283— plan?
Aug 21, 2017 MForm 4 →Aug 22, 9:20 am EDTH John Riley Jr.Director960——21,652— plan?
Aug 21, 2017 MForm 4 →Aug 22, 9:17 am EDTR Bruce NorthcuttDirector960——5,040— plan?
Aug 21, 2017 MForm 4 →Aug 22, 9:11 am EDTMax L LukensDirector960——20,838— plan?
Aug 21, 2017 MForm 4 →Aug 22, 9:09 am EDTDorothy C JenkinsDirector, 10% Owner960——47,078— plan?
Aug 21, 2017 MForm 4 →Aug 22, 9:01 am EDTMichael J GraffDirector960——5,040— plan?
Aug 21, 2017 MForm 4 →Aug 22, 8:58 am EDTRobert T BlakelyDirector960——16,067— plan?
Aug 17, 2017 MForm 4/A →Sep 21, 5:22 pm EDTH John Riley Jr.Director1,003——21,692— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:56 pm EDTDorothy C JenkinsDirector, 10% Owner1,003——46,118— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:53 pm EDTDorothy C JenkinsDirector, 10% Owner1,003——46,118— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:53 pm EDTH John Riley Jr.Director1,003——20,692— plan? amended
Aug 17, 2017 MForm 4 →Aug 17, 12:51 pm EDTR Bruce NorthcuttDirector1,003——4,080— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:50 pm EDTMax L LukensDirector1,003——19,878— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:49 pm EDTMichael J GraffDirector1,003——4,080— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:48 pm EDTRobert T BlakelyDirector1,003——15,107— plan?
Aug 17, 2017 MForm 4 →Aug 17, 12:47 pm EDTDorothy C JenkinsDirector, 10% Owner1,003——46,118— plan?
Aug 15, 2017 SForm 4 →Aug 16, 4:56 pm EDTMark Steven BenderExecutive VP & CFO13,794$70.22$968,62044,449−23.7% plan?
Aug 14, 2017 MForm 4 →Aug 15, 6:25 pm EDTDorothy C JenkinsDirector, 10% Owner3,840$13.56$52,08045,115— plan?
May 17, 2017 SForm 4 →May 18, 4:47 pm EDTGeorge J MangieriVP & Chief Accounting Officer6,578$62.21$409,1986,577−50.0% plan?
Mar 10, 2017 SForm 4 →Mar 13, 4:01 pm EDTMark Steven BenderSr VP, CFO and Treasurer12,000$64.32$771,78558,243−17.1% plan?
Mar 1, 2017 SForm 4 →Mar 3, 6:47 pm ESTRobert F. BuesingerSr. Vice President, Vinyls8,193$66.25$542,7869,309−46.8% plan?
Mar 1, 2017 MForm 4 →Mar 3, 6:47 pm ESTRobert F. BuesingerSr. Vice President, Vinyls8,193$45.00$368,72117,502— plan?
Feb 23, 2017 SForm 4 →Feb 28, 4:32 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner42,180$63.35$2,672,124274,018−13.3% plan? late
Feb 23, 2017 MForm 4 →Feb 28, 4:32 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner42,180$15.81$666,655316,198— plan? late
Feb 14, 2017 FMForm 4 →Feb 16, 4:19 pm ESTGeorge J MangieriVP & Chief Accounting Officer1,292$64.01$20,48313,155— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:18 pm ESTLawrence E. TeelSVP, Olefins1,454$64.01$23,0441,604— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:18 pm ESTAndrew KennerVP - Manufacturing2,196$64.01$33,41312,707— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:17 pm ESTMark Steven BenderSr VP, CFO and Treasurer4,061$64.01$58,18570,243— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:16 pm ESTRobert F. BuesingerSr. Vice President, Vinyls2,194$64.01$33,2859,309— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:15 pm ESTMichael J. MattinaSr. VP, Polyethylene877$64.01$13,8906,506— plan?
Feb 14, 2017 MForm 4 →Feb 16, 4:14 pm ESTL. Benjamin EderingtonVP, General Counsel, Corp Secy342——5,724— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:13 pm ESTJames ChaoChairman, Director, 10% Owner13,111$64.01$181,596118,969— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:12 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner16,360$64.01$225,443274,018— plan?
Nov 16, 2016 SForm 4 →Nov 18, 4:34 pm ESTJames ChaoChairman, Director, 10% Owner20,000$54.15$1,082,9160−100% plan?
Nov 16, 2016 SForm 4 →Nov 18, 4:33 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner20,000$54.15$1,082,9160−100% plan?
Nov 15, 2016 SForm 4 →Nov 17, 4:15 pm ESTMichael J. MattinaSr. VP, Polyethylene18,274$53.78$982,7766,063−75.1% plan?
Nov 15, 2016 MForm 4 →Nov 17, 4:15 pm ESTMichael J. MattinaSr. VP, Polyethylene18,274$19.43$355,11724,337— plan?
Nov 14, 2016 SForm 4 →Nov 16, 4:12 pm ESTJames ChaoChairman, Director, 10% Owner20,000$52.95$1,059,03420,000−50.0% plan?
Nov 14, 2016 SForm 4 →Nov 16, 4:12 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner20,000$52.95$1,059,03420,000−50.0% plan?
Nov 11, 2016 SForm 4 →Nov 14, 4:36 pm ESTGeorge J MangieriVP & Chief Accounting Officer5,696$52.91$301,36712,503−31.3% plan?
Nov 10, 2016 SForm 4 →Nov 14, 4:12 pm ESTRobert F. BuesingerSr. Vice President, Vinyls2,880$54.42$156,7378,155−26.1% plan?
Nov 10, 2016 MForm 4 →Nov 14, 4:12 pm ESTRobert F. BuesingerSr. Vice President, Vinyls2,880$30.05$86,55111,035— plan?
Sep 30, 2016 FMForm 4 →Oct 4, 5:04 pm EDTL. Benjamin EderingtonVP, General Counsel, Corp Secy6,104$53.51$70,5265,382— plan?
Sep 9, 2016 FForm 4 →Sep 12, 4:58 pm EDTSimon BatesVP, Building Products13,212$51.11$675,25614,930— plan?
Sep 1, 2016 AForm 4 →Sep 6, 4:20 pm EDTSimon BatesVP, Building Products28,142——28,142— plan?
Aug 24, 2016 FForm 4 →Aug 25, 5:46 pm EDTMichael J. MattinaSr. VP, Polyethylene2,443$51.93$126,8656,063— plan?
Aug 23, 2016 SForm 4 →Aug 25, 4:29 pm EDTGeorge J MangieriVP & Chief Accounting Officer30,714$52.00$1,597,15623,895−56.2% plan?
Aug 23, 2016 FMForm 4 →Aug 25, 4:29 pm EDTGeorge J MangieriVP & Chief Accounting Officer36,410$21.46$781,22818,199— plan?
Aug 23, 2016 FMForm 4 →Aug 25, 4:28 pm EDTMark Steven BenderSr VP, CFO and Treasurer37,463$22.31$835,91068,000— plan?
Aug 22, 2016 MForm 4 →Aug 24, 4:09 pm EDTH John Riley Jr.Director1,548——20,689— plan?
Aug 22, 2016 MForm 4 →Aug 24, 4:08 pm EDTMichael J GraffDirector1,548——3,077— plan?
Aug 22, 2016 MForm 4 →Aug 24, 4:08 pm EDTMax L LukensDirector1,548——18,875— plan?
Aug 22, 2016 MForm 4 →Aug 24, 4:07 pm EDTRobert T BlakelyDirector1,548——14,104— plan?
Aug 22, 2016 MForm 4 →Aug 24, 4:07 pm EDTDorothy C JenkinsDirector, 10% Owner1,548——41,275— plan?
Aug 22, 2016 MForm 4 →Aug 24, 4:06 pm EDTR Bruce NorthcuttDirector1,548——3,077— plan?
Feb 15, 2016 FMForm 4 →Feb 18, 4:06 pm ESTLawrence E. TeelSVP, Olefins1,031$43.52$11,185870— plan? late
Feb 15, 2016 FMForm 4 →Feb 18, 4:05 pm ESTMichael J. MattinaSr. VP, Polyethylene1,188$43.52$12,8828,506— plan? late
Feb 15, 2016 FMForm 4 →Feb 18, 4:05 pm ESTGeorge J MangieriVP & Chief Accounting Officer1,813$43.52$19,62823,895— plan? late
Feb 15, 2016 FMForm 4 →Feb 18, 4:04 pm ESTAndrew KennerVP - Manufacturing2,941$43.52$30,59511,555— plan? late
Feb 15, 2016 MForm 4 →Feb 18, 4:04 pm ESTJames ChaoChairman, Director, 10% Owner11,406——111,532— plan? late
Feb 15, 2016 FMForm 4 →Feb 18, 4:03 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner18,177$43.52$171,077264,702— plan? late
Feb 15, 2016 FMForm 4 →Feb 18, 4:03 pm ESTRobert F. BuesingerSr. Vice President, Vinyls2,781$43.52$29,0288,155— plan? late
Feb 15, 2016 FMForm 4 →Feb 18, 4:02 pm ESTMark Steven BenderSr VP, CFO and Treasurer5,212$43.52$51,00544,035— plan? late
Nov 10, 2015 SForm 4 →Nov 12, 4:05 pm ESTGeorge J MangieriVP & Chief Accounting Officer2,785$60.21$167,67322,984−10.8% plan?
Nov 10, 2015 MForm 4 →Nov 12, 4:05 pm ESTGeorge J MangieriVP & Chief Accounting Officer1,974$30.05$59,32425,769— plan?
Sep 30, 2015 MForm 4 →Oct 1, 4:03 pm EDTL. Benjamin EderingtonVP, General Counsel, Corp Secy1,914——1,914— plan?
Aug 22, 2015 MForm 4 →Aug 25, 4:50 pm EDTH John Riley Jr.Director943——19,141— plan?
Aug 22, 2015 MForm 4 →Aug 25, 4:48 pm EDTR Bruce NorthcuttDirector943——1,529— plan?
Aug 22, 2015 MForm 4 →Aug 25, 4:47 pm EDTMax L LukensDirector943——17,327— plan?
Aug 22, 2015 MForm 4 →Aug 25, 4:45 pm EDTDorothy C JenkinsDirector, 10% Owner943——39,727— plan?
Aug 22, 2015 MForm 4 →Aug 25, 4:44 pm EDTMichael J GraffDirector943——1,529— plan?
Aug 22, 2015 MForm 4 →Aug 25, 4:43 pm EDTRobert T BlakelyDirector943——12,556— plan?
Aug 11, 2015 SForm 4 →Aug 13, 4:06 pm EDTRobert T BlakelyDirector5,143$63.00$324,00911,613−30.7% plan?
Aug 11, 2015 MForm 4 →Aug 13, 4:06 pm EDTRobert T BlakelyDirector1,776$12.26$21,76516,756— plan?
May 26, 2015 SForm 4 →May 27, 4:26 pm EDTJeffrey L TaylorSr VP, Polyethylene8,143$70.57$574,65720,206−28.7% plan?
May 26, 2015 MForm 4 →May 27, 4:26 pm EDTJeffrey L TaylorSr VP, Polyethylene6,846$43.18$295,59928,349— plan?
May 11, 2015 SForm 4 →May 12, 4:11 pm EDTLawrence E. TeelSVP, Olefins2,125$70.25$149,277353−85.8% plan?
May 11, 2015 MForm 4 →May 12, 4:11 pm EDTLawrence E. TeelSVP, Olefins1,584$36.83$58,3362,478— plan?
May 6, 2015 SForm 4 →May 8, 4:25 pm EDTAndrew KennerVP - Manufacturing10,779$72.28$779,09110,020−51.8% plan?
May 6, 2015 MForm 4 →May 8, 4:25 pm EDTAndrew KennerVP - Manufacturing8,618$27.96$240,96320,799— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:13 pm ESTLawrence E. TeelSVP, Olefins342$66.79$22,841894— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:11 pm ESTJeffrey L TaylorSr VP, Polyethylene1,037$66.79$69,25821,503— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:11 pm ESTGeorge J MangieriVP & Chief Accounting Officer681$66.79$45,48223,795— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:09 pm ESTAndrew KennerVP - Manufacturing1,017$66.79$67,92212,181— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:08 pm ESTDavid R HansenSr VP Adminstration1,073$66.79$71,66325,807— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:07 pm ESTRobert F. BuesingerSr. Vice President, Vinyls964$66.79$64,3836,708— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:06 pm ESTMark Steven BenderSr VP, CFO and Treasurer1,823$66.79$121,75341,167— plan?
Feb 18, 2015 FForm 4 →Feb 20, 4:05 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner7,821$66.79$522,340254,387— plan?
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:22 pm ESTH John Riley Jr.Director586——18,198— plan? late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:20 pm ESTR Bruce NorthcuttDirector586——586— plan? late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:19 pm ESTMax L LukensDirector586——16,384— plan? late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:18 pm ESTMichael J GraffDirector586——586— plan? late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:17 pm ESTRobert T BlakelyDirector586——14,980— plan? late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:16 pm ESTDorothy C JenkinsDirector, 10% Owner586——38,784— plan? late
Nov 26, 2012 SForm 4/A →Dec 19, 2017, 3:21 pm ESTMark Steven BenderEVP and CFO4,407$75.00$330,52536,281−10.8% plan?
Nov 26, 2012 MForm 4/A →Dec 19, 2017, 3:21 pm ESTMark Steven BenderEVP and CFO4,407$14.24$62,75640,688— plan?
Mar 9, 2011 GForm 4 →Feb 9, 2018, 10:08 am ESTJames ChaoChairman, Director, 10% Owner15,868——78,101— plan? late

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 21, 2015 AForm 4 →Aug 25, 4:47 pm EDTMax L LukensDirector1,809——1,809—
Aug 21, 2015 AForm 4 →Aug 25, 4:44 pm EDTDorothy C JenkinsDirector, 10% Owner1,809——1,809—
Aug 21, 2015 AForm 4 →Aug 25, 4:43 pm EDTMichael J GraffDirector1,809——1,809—
Aug 21, 2015 AForm 4 →Aug 25, 4:42 pm EDTRobert T BlakelyDirector1,809——1,809—
Aug 11, 2015 MForm 4 →Aug 13, 4:06 pm EDTRobert T BlakelyDirector1,776——0—
May 26, 2015 MForm 4 →May 27, 4:26 pm EDTJeffrey L TaylorSr VP, Polyethylene6,846——2,014—
May 11, 2015 MForm 4 →May 12, 4:11 pm EDTLawrence E. TeelSVP, Olefins1,584——0—
May 6, 2015 MForm 4 →May 8, 4:25 pm EDTAndrew KennerVP - Manufacturing8,618——0—
Feb 20, 2015 AForm 4 →Feb 24, 4:29 pm ESTLawrence E. TeelSVP, Olefins7,638——1,762—
Feb 20, 2015 AForm 4 →Feb 24, 4:28 pm ESTJeffrey L TaylorSr VP, Polyethylene7,027——1,621—
Feb 20, 2015 AForm 4 →Feb 24, 4:27 pm ESTGeorge J MangieriVP & Chief Accounting Officer3,959——913—
Feb 20, 2015 AForm 4 →Feb 24, 4:27 pm ESTAndrew KennerVP - Manufacturing7,809——1,802—
Feb 20, 2015 AForm 4 →Feb 24, 4:26 pm ESTDavid R HansenSr VP Adminstration9,814——2,264—
Feb 20, 2015 AForm 4 →Feb 24, 4:26 pm ESTL. Benjamin EderingtonVP, General Counsel, Corp Secy7,638——1,762—
Feb 20, 2015 AForm 4 →Feb 24, 4:25 pm ESTJames ChaoChairman, Director, 10% Owner47,106——10,868—
Feb 20, 2015 AForm 4 →Feb 24, 4:25 pm ESTAlbert ChaoPresident & CEO, Director, 10% Owner58,883——13,585—
Feb 20, 2015 AForm 4 →Feb 24, 4:24 pm ESTRobert F. BuesingerSr. Vice President, Vinyls8,590——1,982—
Feb 20, 2015 AForm 4 →Feb 24, 4:24 pm ESTMark Steven BenderSr VP, CFO and Treasurer15,685——3,619—
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:22 pm ESTH John Riley Jr.Director586——1,174— late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:20 pm ESTR Bruce NorthcuttDirector586——1,174— late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:19 pm ESTMax L LukensDirector586——1,174— late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:18 pm ESTMichael J GraffDirector586——1,174— late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:17 pm ESTRobert T BlakelyDirector586——1,174— late
Aug 23, 2014 MForm 4 →Feb 20, 2015, 4:16 pm ESTDorothy C JenkinsDirector, 10% Owner586——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.