Form4insider filings, from the source

Insider · CIK 0001488587

Robert F. Buesinger

Files at: WLK. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $3.8M · 6net −$3.8M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesNov 2016Feb 2017May 2017Aug 2017Nov 2017Feb 2018May 2018

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Feb 18, 2019 FMForm 4 →Feb 20, 1:45 pm ESTWESTLAKE CHEMICAL CORPWLK4,509$73.49$71,2825,211— plan?
May 15, 2018 SForm 4 →May 16, 2:16 pm EDTWESTLAKE CHEMICAL CORPWLK1,447$118.88$172,0122,642−35.4% plan?
Mar 5, 2018 SForm 4 →Mar 6, 2:50 pm ESTWESTLAKE CHEMICAL CORPWLK19,349$113.04$2,187,2034,089−82.6% plan?
Mar 5, 2018 MForm 4 →Mar 6, 2:50 pm ESTWESTLAKE CHEMICAL CORPWLK15,315$59.49$911,03723,438— plan?
Feb 20, 2018 FMForm 4 →Feb 22, 9:26 am ESTWESTLAKE CHEMICAL CORPWLK2,476$106.98$52,8488,123— plan?
Dec 1, 2017 SForm 4 →Dec 4, 9:58 am ESTWESTLAKE CHEMICAL CORPWLK2,674$98.50$263,3896,635−28.7% plan?
Nov 17, 2017 SForm 4 →Nov 20, 9:45 am ESTWESTLAKE CHEMICAL CORPWLK5,214$93.82$489,1999,309−35.9% plan?
Nov 17, 2017 MForm 4 →Nov 20, 9:45 am ESTWESTLAKE CHEMICAL CORPWLK5,214$63.98$333,57914,523— plan?
Mar 1, 2017 SForm 4 →Mar 3, 6:47 pm ESTWESTLAKE CHEMICAL CORPWLK8,193$66.25$542,7869,309−46.8% plan?
Mar 1, 2017 MForm 4 →Mar 3, 6:47 pm ESTWESTLAKE CHEMICAL CORPWLK8,193$45.00$368,72117,502— plan?
Feb 14, 2017 FMForm 4 →Feb 16, 4:16 pm ESTWESTLAKE CHEMICAL CORPWLK2,194$64.01$33,2859,309— plan?
Nov 10, 2016 SForm 4 →Nov 14, 4:12 pm ESTWESTLAKE CHEMICAL CORPWLK2,880$54.42$156,7378,155−26.1% plan?
Nov 10, 2016 MForm 4 →Nov 14, 4:12 pm ESTWESTLAKE CHEMICAL CORPWLK2,880$30.05$86,55111,035— plan?
Feb 15, 2016 FMForm 4 →Feb 18, 4:03 pm ESTWESTLAKE CHEMICAL CORPWLK2,781$43.52$29,0288,155— plan? late
Feb 18, 2015 FForm 4 →Feb 20, 4:07 pm ESTWESTLAKE CHEMICAL CORPWLK964$66.79$64,3836,708— plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Feb 18, 2019 MForm 4 →Feb 20, 1:45 pm ESTWESTLAKE CHEMICAL CORPWLK3,539——0—
Feb 15, 2019 AForm 4 →Feb 19, 12:48 pm ESTWESTLAKE CHEMICAL CORPWLK18,563——3,869—
Mar 5, 2018 MForm 4 →Mar 6, 2:50 pm ESTWESTLAKE CHEMICAL CORPWLK15,315——8,652—
Feb 20, 2018 MForm 4 →Feb 22, 9:26 am ESTWESTLAKE CHEMICAL CORPWLK1,982——0—
Feb 16, 2018 AForm 4 →Feb 20, 2:00 pm ESTWESTLAKE CHEMICAL CORPWLK12,140——2,569—
Nov 14, 2017 MForm 4 →Nov 20, 9:45 am ESTWESTLAKE CHEMICAL CORPWLK5,214——0— late
Mar 1, 2017 MForm 4 →Mar 3, 6:47 pm ESTWESTLAKE CHEMICAL CORPWLK8,193——45—
Feb 17, 2017 AForm 4 →Feb 22, 4:11 pm ESTWESTLAKE CHEMICAL CORPWLK16,219——3,306—
Feb 14, 2017 MForm 4 →Feb 16, 4:16 pm ESTWESTLAKE CHEMICAL CORPWLK1,674——0—
Dec 1, 2016 AForm 4 →Dec 5, 4:06 pm ESTWESTLAKE CHEMICAL CORPWLK4,995——4,995—
Nov 10, 2016 MForm 4 →Nov 14, 4:12 pm ESTWESTLAKE CHEMICAL CORPWLK2,880——0—
Feb 18, 2016 AForm 4 →Feb 22, 4:02 pm ESTWESTLAKE CHEMICAL CORPWLK17,011——3,539—
Feb 15, 2016 MForm 4 →Feb 18, 4:03 pm ESTWESTLAKE CHEMICAL CORPWLK2,114——0— late
Feb 20, 2015 AForm 4 →Feb 24, 4:24 pm ESTWESTLAKE CHEMICAL CORPWLK8,590——1,982—