Westlake Corporation
US ˙ NYSE ˙ US9604131022

Pendahuluan

Halaman ini memberikan analisis komprehensif tentang sejarah perdagangan orang dalam yang diketahui dari James Chao. Orang dalam adalah pejabat, direktur, atau investor signifikan dalam suatu perusahaan. Adalah ilegal bagi orang dalam untuk melakukan perdagangan di perusahaan mereka berdasarkan informasi spesifik yang tidak dipublikasikan. Ini tidak berarti bahwa mereka dilarang melakukan perdagangan apa pun di perusahaan mereka sendiri. Namun, mereka harus melaporkan semua perdagangan kepada SEC melalui Formulir 4. Terlepas dari pembatasan ini, penelitian akademis menunjukkan bahwa orang dalam - secara umum - cenderung mengungguli pasar di perusahaan mereka sendiri.

Rata-rata Profitabilitas Perdagangan

Profitabilitas perdagangan rata-rata adalah pengembalian rata-rata dari semua pembelian pasar terbuka yang dilakukan oleh orang dalam dalam tiga tahun terakhir. Untuk menghitung ini, kami memeriksa setiap pembelian pasar terbuka yang tidak direncanakan yang dilakukan oleh orang dalam, tidak termasuk semua perdagangan yang ditandai sebagai bagian dari rencana perdagangan 10b5-1. Kami kemudian menghitung kinerja rata-rata dari perdagangan tersebut selama 3, 6, dan 12 bulan, dengan merata-ratakan setiap durasi tersebut untuk menghasilkan metrik kinerja akhir untuk setiap perdagangan. Terakhir, kami merata-ratakan semua metrik kinerja untuk menghitung metrik kinerja untuk orang dalam. Daftar ini hanya mencakup orang dalam yang telah melakukan setidaknya tiga perdagangan dalam dua tahun terakhir.

Jika profitabilitas perdagangan orang dalam ini adalah "N/A", maka orang dalam tersebut belum melakukan pembelian di pasar terbuka dalam tiga tahun terakhir, atau perdagangan yang mereka lakukan terlalu baru untuk menghitung metrik kinerja yang andal.

Frekuensi Pembaruan: Setiap Hari

Lihat daftar pedagang dalam perusahaan yang paling menguntungkan.

Perusahaan dengan Posisi Orang Dalam yang Dilaporkan

Pengajuan SEC menunjukkan bahwa James Chao telah melaporkan kepemilikan atau perdagangan di perusahaan-perusahaan berikut:

Keamanan Judul Kepemilikan Terakhir yang Dilaporkan
US:WLK / Westlake Corporation Senior Chairman, Director 39,741
US:WLKP / Westlake Chemical Partners LP - Limited Partnership Senior Chairman, Director 0
Cara Membaca Grafik

Grafik berikut menunjukkan kinerja saham sekuritas setelah setiap perdagangan pasar terbuka yang tidak direncanakan yang dilakukan oleh James Chao. Perdagangan yang tidak direncanakan adalah perdagangan yang tidak dilakukan sebagai bagian dari rencana perdagangan 10b5-1. Kinerja saham digambarkan sebagai perubahan persentase kumulatif dalam harga saham. Misalnya, jika perdagangan orang dalam dilakukan pada 1 Januari 2019, grafik akan menunjukkan perubahan persentase harian sekuritas hingga saat ini. Jika harga saham naik dari $10 menjadi $15 selama periode ini, perubahan persentase kumulatif dalam harga saham akan menjadi 50%. Perubahan harga dari $10 menjadi $20 akan menjadi 100%, dan perubahan harga dari $10 menjadi $5 akan menjadi -50%.

Pada akhirnya, kita mencoba menentukan seberapa erat korelasi perdagangan orang dalam dengan pengembalian berlebih (positif atau negatif) pada harga saham untuk melihat apakah orang dalam tersebut mengatur waktu perdagangannya untuk mendapatkan keuntungan dari informasi orang dalam. Pertimbangkan situasi di mana orang dalam melakukan hal ini. Dalam situasi ini, kita akan mengharapkan (a) pengembalian positif setelah pembelian, atau (b) pengembalian negatif setelah penjualan. Dalam kasus (a), grafik PEMBELIAN akan menunjukkan serangkaian kurva yang miring ke atas, menunjukkan pengembalian positif setelah setiap transaksi pembelian. Dalam kasus (b), grafik PENJUALAN akan menunjukkan serangkaian kurva yang miring ke bawah, menunjukkan pengembalian negatif setelah setiap transaksi penjualan.

Namun, ini saja tidak cukup untuk menarik kesimpulan. Jika, misalnya, harga saham perusahaan berada dalam tren kenaikan non-siklikal selama bertahun-tahun, maka kita akan mengharapkan semua plot pasca-pembelian memiliki kemiringan ke atas. Demikian pula, penurunan non-siklikal selama bertahun-tahun akan menghasilkan plot pasca-perdagangan dengan kemiringan ke bawah. Tak satu pun dari grafik ini akan menunjukkan aktivitas perdagangan orang dalam.

Indikator terkuat adalah situasi di mana harga saham sangat siklikal, dan terdapat sinyal positif pada grafik PEMBELIAN dan plot negatif pada grafik PENJUALAN. Situasi ini akan sangat menunjukkan adanya orang dalam yang mengatur waktu perdagangan untuk keuntungan finansial mereka.

Pembelian Orang Dalam WLK / Westlake Corporation - Analisis Keuntungan Jangka Pendek

Pada bagian ini, kami menganalisis profitabilitas setiap pembelian saham oleh orang dalam di pasar terbuka yang tidak direncanakan yang dilakukan di WLK / Westlake Corporation. Analisis ini membantu memahami apakah orang dalam tersebut secara konsisten menghasilkan pengembalian abnormal, dan layak untuk diikuti. Analisis ini dilakukan selama satu tahun setelah setiap transaksi, dan hasilnya bersifat teoritis .

Tabel berikut menunjukkan pembelian pasar terbuka terbaru yang bukan bagian dari rencana perdagangan otomatis.

Tanggal Perdagangan Ticker Orang Dalam Dilaporkan
Saham
Dilaporkan
Harga
Disesuaikan
Saham
Disesuaikan
Harga
Dasar Biaya Hari-hari menuju
Maksimal
Harga di
Maksimal
Maksimal
Keuntungan ($)
Maksimum Pengembalian (%)
Tidak ada transaksi pasar terbuka tak terduga yang diketahui untuk kombinasi orang dalam dan sekuritas ini.

Harga yang Disesuaikan adalah harga yang disesuaikan dengan pemisahan saham. Saham yang Disesuaikan adalah saham yang disesuaikan dengan pemisahan saham.

WLK / Westlake Corporation Insider Trades
Penjualan Orang Dalam WLK / Westlake Corporation - Analisis Kerugian Jangka Pendek

Pada bagian ini, kami menganalisis penghindaran kerugian jangka pendek dari setiap penjualan internal pasar terbuka yang tidak direncanakan yang dilakukan di WLK / Westlake Corporation. Pola penghindaran kerugian yang konsisten dapat menunjukkan bahwa transaksi penjualan di masa mendatang dapat memprediksi penurunan harga. Analisis ini berlaku untuk satu tahun setelah setiap perdagangan, dan hasilnya bersifat teoritis .

Tabel berikut menunjukkan penjualan pasar terbuka terbaru yang bukan bagian dari rencana perdagangan otomatis.

Tanggal Perdagangan Ticker Orang Dalam Dilaporkan
Saham
Dilaporkan
Harga
Disesuaikan
Saham
Disesuaikan
Harga
Dasar Biaya Hari-hari menuju
Menit
Harga di
Menit
Kerugian Maksimal
Dihindari ($)
Kerugian Maksimal
Dihindari (%)
2018-05-24 WLK Chao James 33,305 120.6900 33,305 120.6900 4,019,580 354 58.34 -2,076,566 -51.66
2017-11-24 WLK Chao James 66,026 94.6110 66,026 94.6110 6,246,786
2017-11-22 WLK Chao James 10,109 95.2030 10,109 95.2030 962,407
2016-11-17 WLK Chao James 9,700 53.8241 9,700 53.8241 522,094
2016-11-17 WLK Chao James 300 54.5700 300 54.5700 16,371
2016-11-16 WLK Chao James 10,000 54.4451 10,000 54.4451 544,451
2016-11-15 WLK Chao James 10,000 53.0595 10,000 53.0595 530,595
2016-11-14 WLK Chao James 10,000 52.8439 10,000 52.8439 528,439
2014-08-25 WLK Chao James 30,559 95.0032 30,559 95.0032 2,903,203
2014-08-22 WLK Chao James 42,379 93.5737 42,379 93.5737 3,965,560
2014-06-09 WLK Chao James 42,946 82.0106 42,946 82.0106 3,522,027
2012-12-07 WLK Chao James 8,696 75.2300 8,696 75.2300 654,200
2012-12-07 WLK Chao James 5,077 75.2500 5,077 75.2500 382,044
2012-12-07 WLK Chao James 1,600 72.2600 1,600 72.2600 115,616
2012-12-07 WLK Chao James 300 75.2700 300 75.2700 22,581
2012-12-07 WLK Chao James 1,200 75.3000 1,200 75.3000 90,360
2012-12-07 WLK Chao James 1,300 75.3100 1,300 75.3100 97,903
2012-12-07 WLK Chao James 500 75.3300 500 75.3300 37,665
2012-12-07 WLK Chao James 2,200 75.3400 2,200 75.3400 165,748
2012-12-07 WLK Chao James 5,220 75.3500 5,220 75.3500 393,327
2012-12-07 WLK Chao James 400 75.3900 400 75.3900 30,156
2012-12-07 WLK Chao James 100 75.4000 100 75.4000 7,540
2012-12-07 WLK Chao James 200 75.4300 200 75.4300 15,086
2012-12-07 WLK Chao James 200 75.4400 200 75.4400 15,088
2012-12-07 WLK Chao James 300 75.4800 300 75.4800 22,644
2012-12-07 WLK Chao James 200 75.4950 200 75.4950 15,099
2012-12-07 WLK Chao James 200 75.5000 200 75.5000 15,100
2012-12-07 WLK Chao James 400 75.5100 400 75.5100 30,204
2012-12-07 WLK Chao James 200 75.5300 200 75.5300 15,106
2012-12-07 WLK Chao James 100 75.5500 100 75.5500 7,555
2012-12-07 WLK Chao James 200 75.5800 200 75.5800 15,116
2012-12-07 WLK Chao James 100 75.5900 100 75.5900 7,559
2012-12-07 WLK Chao James 300 75.6500 300 75.6500 22,695
2012-12-07 WLK Chao James 100 75.6600 100 75.6600 7,566
2012-12-07 WLK Chao James 100 75.6700 100 75.6700 7,567
2012-12-07 WLK Chao James 100 75.6800 100 75.6800 7,568
2012-12-07 WLK Chao James 900 75.7100 900 75.7100 68,139
2012-12-06 WLK Chao James 1,400 73.0000 1,400 73.0000 102,200
2012-08-22 WLK Chao James 15,120 69.0000 15,120 69.0000 1,043,280
2012-08-22 WLK Chao James 100 69.0100 100 69.0100 6,901
2012-08-22 WLK Chao James 300 69.0200 300 69.0200 20,706
2012-08-22 WLK Chao James 5,515 69.0300 5,515 69.0300 380,700
2012-08-22 WLK Chao James 8,865 69.0500 8,865 69.0500 612,128
2012-08-22 WLK Chao James 1,000 69.0501 1,000 69.0501 69,050
2012-08-22 WLK Chao James 100 69.0600 100 69.0600 6,906
2012-08-22 WLK Chao James 802 69.0601 802 69.0601 55,386
2012-08-22 WLK Chao James 1,000 69.0800 1,000 69.0800 69,080
2012-08-22 WLK Chao James 1,000 69.0801 1,000 69.0801 69,080
2012-08-22 WLK Chao James 33,802 69.0260 33,802 69.0260 2,333,217
2012-05-29 WLK Chao James 434 56.9800 434 56.9800 24,729
2012-05-29 WLK Chao James 300 56.9900 300 56.9900 17,097
2012-05-29 WLK Chao James 500 57.0000 500 57.0000 28,500
2012-05-29 WLK Chao James 3,636 57.0100 3,636 57.0100 207,288
2012-05-29 WLK Chao James 1,964 57.0200 1,964 57.0200 111,987
2012-05-29 WLK Chao James 4,700 57.0300 4,700 57.0300 268,041
2012-05-29 WLK Chao James 100 57.0301 100 57.0301 5,703
2012-05-29 WLK Chao James 600 57.0400 600 57.0400 34,224
2012-05-29 WLK Chao James 1,829 57.0500 1,829 57.0500 104,344
2012-05-29 WLK Chao James 1,300 57.0700 1,300 57.0700 74,191
2012-05-29 WLK Chao James 1,100 57.0800 1,100 57.0800 62,788
2012-05-29 WLK Chao James 100 57.0801 100 57.0801 5,708
2012-05-29 WLK Chao James 2,800 57.1000 2,800 57.1000 159,880
2012-05-29 WLK Chao James 800 57.1100 800 57.1100 45,688
2012-05-29 WLK Chao James 1,271 57.1500 1,271 57.1500 72,638
2012-05-29 WLK Chao James 500 57.1600 500 57.1600 28,580
2012-05-29 WLK Chao James 1,500 57.1700 1,500 57.1700 85,755
2012-05-29 WLK Chao James 200 57.1701 200 57.1701 11,434
2012-05-29 WLK Chao James 200 57.1800 200 57.1800 11,436
2012-05-29 WLK Chao James 100 57.1850 100 57.1850 5,718
2012-05-29 WLK Chao James 100 57.1900 100 57.1900 5,719
2012-05-29 WLK Chao James 200 57.2100 200 57.2100 11,442
2012-05-29 WLK Chao James 200 57.2300 200 57.2300 11,446
2012-05-29 WLK Chao James 4,957 56.7400 4,957 56.7400 281,260
2012-05-29 WLK Chao James 500 57.2700 500 57.2700 28,635
2012-05-29 WLK Chao James 1,400 56.7500 1,400 56.7500 79,450
2012-05-29 WLK Chao James 1,000 56.7600 1,000 56.7600 56,760
2012-05-29 WLK Chao James 3,800 56.7800 3,800 56.7800 215,764
2012-05-29 WLK Chao James 8,300 56.7900 8,300 56.7900 471,357
2012-05-29 WLK Chao James 5,849 56.8000 5,849 56.8000 332,223
2012-05-29 WLK Chao James 3,139 56.8100 3,139 56.8100 178,327
2012-05-29 WLK Chao James 1,000 56.8200 1,000 56.8200 56,820
2012-05-29 WLK Chao James 903 56.8300 903 56.8300 51,317
2012-05-29 WLK Chao James 100 56.8320 100 56.8320 5,683
2012-05-29 WLK Chao James 462 56.8400 462 56.8400 26,260
2012-05-29 WLK Chao James 200 56.8401 200 56.8401 11,368
2012-05-29 WLK Chao James 300 56.8500 300 56.8500 17,055
2012-05-29 WLK Chao James 366 56.8600 366 56.8600 20,811
2012-05-29 WLK Chao James 2,079 56.8700 2,079 56.8700 118,233
2012-05-29 WLK Chao James 600 56.8725 600 56.8725 34,124
2012-05-29 WLK Chao James 399 56.8800 399 56.8800 22,695
2012-05-29 WLK Chao James 204 56.9000 204 56.9000 11,608
2012-05-29 WLK Chao James 20 56.9100 20 56.9100 1,138
2012-05-29 WLK Chao James 2,646 56.9200 2,646 56.9200 150,610
2012-05-29 WLK Chao James 100 56.9250 100 56.9250 5,692
2012-05-29 WLK Chao James 1,120 56.9300 1,120 56.9300 63,762
2012-05-29 WLK Chao James 100 56.9400 100 56.9400 5,694
2012-05-29 WLK Chao James 498 56.9500 498 56.9500 28,361
2012-05-29 WLK Chao James 3,540 56.9600 3,540 56.9600 201,638
2012-05-29 WLK Chao James 2,178 56.9700 2,178 56.9700 124,081
2012-05-25 WLK Chao James 7,400 55.0700 7,400 55.0700 407,518
2012-05-25 WLK Chao James 1,000 55.0800 1,000 55.0800 55,080
2012-05-25 WLK Chao James 1,100 55.0900 1,100 55.0900 60,599
2012-05-25 WLK Chao James 3,370 55.1000 3,370 55.1000 185,687
2012-05-25 WLK Chao James 1,000 55.1100 1,000 55.1100 55,110
2012-05-25 WLK Chao James 100 55.1150 100 55.1150 5,512
2012-05-25 WLK Chao James 200 55.1200 200 55.1200 11,024
2012-05-25 WLK Chao James 206 55.1300 206 55.1300 11,357
2012-05-25 WLK Chao James 224 55.1500 224 55.1500 12,354
2012-05-25 WLK Chao James 500 55.1600 500 55.1600 27,580
2012-05-25 WLK Chao James 2,300 55.1700 2,300 55.1700 126,891
2012-05-25 WLK Chao James 500 55.1800 500 55.1800 27,590
2012-05-25 WLK Chao James 2,428 55.1900 2,428 55.1900 134,001
2012-05-25 WLK Chao James 6,158 55.2000 6,158 55.2000 339,922
2012-05-25 WLK Chao James 297 55.2100 297 55.2100 16,397
2012-05-25 WLK Chao James 338 55.2200 338 55.2200 18,664
2012-05-25 WLK Chao James 816 55.2300 816 55.2300 45,068
2012-05-25 WLK Chao James 3,107 55.2400 3,107 55.2400 171,631
2012-05-25 WLK Chao James 100 55.2401 100 55.2401 5,524
2012-05-25 WLK Chao James 2,248 55.2500 2,248 55.2500 124,202
2012-05-25 WLK Chao James 308 55.2600 308 55.2600 17,020
2012-05-25 WLK Chao James 700 55.2700 700 55.2700 38,689
2012-05-25 WLK Chao James 900 55.2800 900 55.2800 49,752

Harga yang Disesuaikan adalah harga yang disesuaikan dengan pemisahan saham. Saham yang Disesuaikan adalah saham yang disesuaikan dengan pemisahan saham.

WLK / Westlake Corporation Insider Trades
Pembelian Orang Dalam WLKP / Westlake Chemical Partners LP - Limited Partnership - Analisis Keuntungan Jangka Pendek

Pada bagian ini, kami menganalisis profitabilitas setiap pembelian saham oleh orang dalam di pasar terbuka yang tidak direncanakan yang dilakukan di WLK / Westlake Corporation. Analisis ini membantu memahami apakah orang dalam tersebut secara konsisten menghasilkan pengembalian abnormal, dan layak untuk diikuti. Analisis ini dilakukan selama satu tahun setelah setiap transaksi, dan hasilnya bersifat teoritis .

Tabel berikut menunjukkan pembelian pasar terbuka terbaru yang bukan bagian dari rencana perdagangan otomatis.

Tanggal Perdagangan Ticker Orang Dalam Dilaporkan
Saham
Dilaporkan
Harga
Disesuaikan
Saham
Disesuaikan
Harga
Dasar Biaya Hari-hari menuju
Maksimal
Harga di
Maksimal
Maksimal
Keuntungan ($)
Maksimum Pengembalian (%)
2018-11-12 WLKP Chao James 10,000 22.7700 10,000 22.7700 227,700 213 24.6100 18,400 8.08
2017-12-04 WLKP Chao James 8,473 22.1700 8,473 22.1700 187,846
2014-08-04 WLKP Chao James 45,000 24.0000 45,000 24.0000 1,080,000
2014-08-04 WLKP Chao James 1,436,115 1,436,115
2014-08-04 WLKP Chao James 45,000 24.0000 45,000 24.0000 1,080,000

Harga yang Disesuaikan adalah harga yang disesuaikan dengan pemisahan saham. Saham yang Disesuaikan adalah saham yang disesuaikan dengan pemisahan saham.

WLKP / Westlake Chemical Partners LP - Limited Partnership Insider Trades
Penjualan Orang Dalam WLKP / Westlake Chemical Partners LP - Limited Partnership - Analisis Kerugian Jangka Pendek

Pada bagian ini, kami menganalisis penghindaran kerugian jangka pendek dari setiap penjualan internal pasar terbuka yang tidak direncanakan yang dilakukan di WLK / Westlake Corporation. Pola penghindaran kerugian yang konsisten dapat menunjukkan bahwa transaksi penjualan di masa mendatang dapat memprediksi penurunan harga. Analisis ini berlaku untuk satu tahun setelah setiap perdagangan, dan hasilnya bersifat teoritis .

Tabel berikut menunjukkan penjualan pasar terbuka terbaru yang bukan bagian dari rencana perdagangan otomatis.

Tanggal Perdagangan Ticker Orang Dalam Dilaporkan
Saham
Dilaporkan
Harga
Disesuaikan
Saham
Disesuaikan
Harga
Dasar Biaya Hari-hari menuju
Menit
Harga di
Menit
Kerugian Maksimal
Dihindari ($)
Kerugian Maksimal
Dihindari (%)
2025-05-29 WLKP Chao James 3,700 22.1000 3,700 22.1000 81,770 67 21.8000 -1,110 -1.36
2025-05-28 WLKP Chao James 4,600 22.1000 4,600 22.1000 101,660
2025-05-27 WLKP Chao James 5,608 22.1700 5,608 22.1700 124,329
2022-05-31 WLKP Chao James 29,092 26.8670 29,092 26.8670 781,615
2022-05-31 WLKP Chao James 2,000 27.5400 2,000 27.5400 55,080

Harga yang Disesuaikan adalah harga yang disesuaikan dengan pemisahan saham. Saham yang Disesuaikan adalah saham yang disesuaikan dengan pemisahan saham.

WLKP / Westlake Chemical Partners LP - Limited Partnership Insider Trades
Sejarah Perdagangan Orang Dalam

Tabel ini menunjukkan daftar lengkap transaksi orang dalam yang dilakukan oleh James Chao sebagaimana diungkapkan kepada Komisi Bursa Efek (Securities Exchange Commission/SEC).

Tanggal File Tanggal Transaksi Formulir Ticker Keamanan Kode 10b5-1 Saham Sisa Saham Persen
Ubah
Bagikan
Harga
Tran
Nilai
Sisa
Nilai
2025-08-29 2025-08-28 4 WLK WESTLAKE CORP
Common Stock
G - Gift -15,140 39,741 -27.59
2025-05-30 2025-05-29 4 WLKP Westlake Chemical Partners LP
Common Units
S - Sale -3,700 0 -100.00 22.10 -81,770
2025-05-29 2025-05-28 4 WLKP Westlake Chemical Partners LP
Common Units
S - Sale -4,600 3,700 -55.42 22.10 -101,660 81,770
2025-05-29 2025-05-27 4 WLKP Westlake Chemical Partners LP
Common Units
S - Sale -5,608 8,300 -40.32 22.17 -124,329 184,011
2025-02-24 2025-02-21 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -6,554 54,881 -10.67 110.54 -724,479 6,066,546
2025-02-24 2025-02-20 4 WLK WESTLAKE CORP
Common Stock
A - Award 16,375 61,435 36.34
2025-02-20 2025-02-19 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -94 45,060 -0.21 112.76 -10,599 5,080,966
2025-02-20 2025-02-19 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -2,193 45,154 -4.63 111.46 -244,432 5,032,865
2025-02-20 2025-02-18 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 8,796 47,347 22.82
2024-09-03 2024-08-30 4 WLK WESTLAKE CORP
Common Stock
G - Gift -6,642 38,551 -14.70
2024-04-01 2024-03-28 4 WLK WESTLAKE CORP
Common Stock
G - Gift -36,632 45,193 -44.77
2024-02-21 2024-02-20 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -1,153 81,825 -1.39 136.97 -157,928 11,207,652
2024-02-21 2024-02-20 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -10 82,978 -0.01 135.43 -1,354 11,237,711
2024-02-21 2024-02-20 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -11,799 82,988 -12.45 129.92 -1,532,926 10,781,801
2024-02-21 2024-02-19 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 10,774 94,787 12.82
2024-02-21 2024-02-16 4 WLK WESTLAKE CORP
Common Stock
A - Award 21,614 84,013 34.64
2023-12-01 2023-11-30 4 WLK WESTLAKE CORP
Common Stock
D - Sale to Issuer -10,981 62,399 -14.96 129.14 -1,418,086 8,058,207
2023-12-01 2023-11-30 4 WLK WESTLAKE CORP
Common Stock
D - Sale to Issuer -57,232 73,380 -43.82 128.37 -7,346,872 9,419,791
2023-12-01 2023-11-30 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 9,177 130,612 7.56 108.12 992,194 14,121,443
2023-12-01 2023-11-30 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 24,437 121,435 25.19 86.54 2,114,727 10,508,730
2023-12-01 2023-11-30 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 34,599 96,998 55.45 65.81 2,277,047 6,383,681
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
G - Gift -58,268 62,372 -48.30
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
D - Sale to Issuer -17,998 120,640 -12.98 132.48 -2,384,339 15,982,146
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
D - Sale to Issuer -226,593 138,638 -62.04 131.15 -29,718,352 18,182,790
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 43,738 365,231 13.60 65.81 2,878,507 24,036,765
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 55,766 321,493 20.99 79.83 4,451,800 25,664,786
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 35,321 265,727 15.33 107.75 3,805,838 28,632,084
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 62,197 230,406 36.98 61.86 3,847,817 14,254,067
2023-09-01 2023-08-31 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 47,569 168,209 39.43 44.42 2,113,015 7,471,844
2023-08-31 2023-08-30 4 WLK WESTLAKE CORP
Common Stock
D - Sale to Issuer -30,056 120,640 -19.94 133.70 -4,018,577 16,129,930
2023-08-31 2023-08-30 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 17,735 150,696 13.34 44.42 787,789 6,693,916
2023-08-31 2023-08-30 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 12,321 132,961 10.21 68.09 838,937 9,053,314
2023-03-15 2023-03-13 4/A WLK WESTLAKE CORP
Common Stock
F - Taxes -789 120,640 -0.65 105.13 -82,948 12,682,883
2023-03-15 2023-03-13 4/A WLK WESTLAKE CORP
Common Stock
F - Taxes -14,836 121,429 -10.89 104.32 -1,547,692 12,667,473
2023-03-15 2023-02-17 4/A WLK WESTLAKE CORP
Common Stock
A - Award 37,150 136,265 37.48
2023-02-17 2023-02-17 4 WLK WESTLAKE CORP
Common Stock
A - Award 37,150 136,265 37.48
2023-02-16 2023-02-15 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -85 99,115 -0.09 122.45 -10,408 12,136,632
2023-02-16 2023-02-15 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -6,074 99,200 -5.77 121.86 -740,178 12,088,512
2023-02-16 2023-02-14 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 18,519 105,274 21.35
2022-06-13 2022-06-09 4 WLKP Westlake Chemical Partners LP
Common Units
G - Gift -10,000 13,908 -41.83
2022-06-02 2022-06-02 4 WLK WESTLAKE CORP
Common Stock
G - Gift -38,836 86,755 -30.92
2022-06-02 2022-05-31 4 WLKP Westlake Chemical Partners LP
Common Units
S - Sale -2,000 23,908 -7.72 27.54 -55,080 658,426
2022-06-02 2022-05-31 4 WLKP Westlake Chemical Partners LP
Common Units
S - Sale -29,092 25,908 -52.89 26.87 -781,615 696,070
2022-03-15 2022-03-14 4/A WLK WESTLAKE CORP
Common Stock
F - Taxes -9,710 125,591 -7.18 118.51 -1,150,732 14,883,789
2022-03-15 2022-02-18 4/A WLK WESTLAKE CORP
Common Stock
A - Award 24,461 135,301 22.07
2022-02-22 2022-02-18 4 WLK WESTLAKE CORP
Restricted Stock Units
A - Award 8,796 8,796
2022-02-22 2022-02-18 4 WLK WESTLAKE CORP
Employee Option (right to buy)
A - Award 27,810 27,810
2022-02-22 2022-02-18 4 WLK WESTLAKE CORP
Common Stock
A - Award 24,462 135,302 22.07
2022-02-17 2022-02-16 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -20 110,840 -0.02 106.18 -2,124 11,768,991
2022-02-17 2022-02-16 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -27 110,860 -0.02 105.97 -2,861 11,747,723
2022-02-17 2022-02-16 4 WLK WESTLAKE CORP
Common Stock
F - Taxes -4,308 110,887 -3.74 104.96 -452,168 11,638,700
2022-02-17 2022-02-15 4 WLK WESTLAKE CORP
Restricted Stock Units
M - Exercise -14,683 0 -100.00
2022-02-17 2022-02-15 4 WLK WESTLAKE CORP
Common Stock
M - Exercise 14,683 115,195 14.61
2021-12-03 2021-12-02 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -16,420 0 -100.00
2021-12-03 2021-12-02 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 16,420 100,512 19.53 30.05 493,462 3,020,637
2021-02-22 2021-02-19 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 10,774 10,774
2021-02-22 2021-02-19 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 37,026 37,026
2021-02-18 2021-02-18 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -2,537 84,092 -2.93 85.08 -215,856 7,154,800
2021-02-18 2021-02-16 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -9,480 0 -100.00
2021-02-18 2021-02-16 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 9,480 86,629 12.29
2021-02-17 2021-02-16 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -8 77,149 -0.01 87.70 -702 6,765,967
2021-02-17 2021-02-16 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -784 77,157 -1.01 85.73 -67,212 6,614,670
2021-02-17 2021-02-14 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -3,072 0 -100.00
2021-02-17 2021-02-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 3,072 77,941 4.10
2020-02-19 2020-02-18 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -273 74,869 -0.36 61.47 -16,781 4,602,197
2020-02-19 2020-02-18 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -4,103 75,142 -5.18 60.50 -248,232 4,546,091
2020-02-19 2020-02-17 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -15,922 0 -100.00
2020-02-19 2020-02-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 15,922 79,245 25.14
2020-02-18 2020-02-14 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 3,072 3,072
2020-02-18 2020-02-14 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 18,519 18,519
2020-02-18 2020-02-14 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 78,337 78,337
2019-02-20 2019-02-19 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -462 63,323 -0.72 75.62 -34,936 4,788,485
2019-02-20 2019-02-19 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -4,861 63,785 -7.08 73.29 -356,263 4,674,803
2019-02-20 2019-02-18 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -17,154 0 -100.00
2019-02-20 2019-02-18 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 17,154 68,646 33.31
2019-02-19 2019-02-15 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 14,683 14,683
2019-02-19 2019-02-15 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 55,766 55,766
2018-11-14 2018-11-12 4 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
P - Purchase 10,000 55,000 22.22 22.77 227,700 1,252,350
2018-05-25 2018-05-24 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -33,305 51,492 -39.28 120.69 -4,019,580 6,214,569
2018-02-22 2018-02-21 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -4,172 84,797 -4.69 106.98 -446,321 9,071,583
2018-02-22 2018-02-20 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -10,868 0 -100.00
2018-02-22 2018-02-20 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 10,868 88,969 13.92
2018-02-20 2018-02-16 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 9,480 9,480
2018-02-20 2018-02-16 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 35,321 35,321
2018-02-09 2013-12-26 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -1,000 78,101 -1.26
2018-02-09 2011-03-10 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -4,000 79,101 -4.81
2018-02-09 2011-03-09 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -10,868 83,101 -11.57
2017-12-06 2017-12-04 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -15,000 93,969 -13.77
2017-12-05 2017-12-04 4 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
P - Purchase 8,473 8,473 22.17 187,846 187,846
2017-12-04 2017-12-01 4/A WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -10,000 108,969 -8.41
2017-11-29 2017-11-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -10,000 108,969 -8.41
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -32,000 0 -100.00
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -23,917 12,321 -66.00
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -10,109 0 -100.00
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -66,026 118,969 -35.69 94.61 -6,246,786 11,255,776
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 32,000 184,995 20.92 63.98 2,047,280 11,835,518
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 23,917 152,995 18.53 68.09 1,628,509 10,417,430
2017-11-27 2017-11-24 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 10,109 129,078 8.50 45.70 461,956 5,898,542
2017-11-27 2017-11-22 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -10,109 10,109 -50.00
2017-11-27 2017-11-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -10,109 118,969 -7.83 95.20 -962,407 11,326,206
2017-11-27 2017-11-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 10,109 129,078 8.50 45.70 461,956 5,898,542
2017-02-22 2017-02-17 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 15,922 15,922
2017-02-22 2017-02-17 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 62,197 62,197
2017-02-16 2017-02-15 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -2,837 118,969 -2.33 64.01 -181,596 7,615,206
2017-02-16 2017-02-14 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -10,274 0 -100.00
2017-02-16 2017-02-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 10,274 121,806 9.21
2016-11-18 2016-11-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 0 -100.00 54.57 -16,371
2016-11-18 2016-11-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -9,700 300 -97.00 53.82 -522,094 16,147
2016-11-18 2016-11-16 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -10,000 10,000 -50.00 54.45 -544,451 544,451
2016-11-16 2016-11-15 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -10,000 20,000 -33.33 53.06 -530,595 1,061,190
2016-11-16 2016-11-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -10,000 30,000 -25.00 52.84 -528,439 1,585,317
2016-02-22 2016-02-18 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 17,154 17,154
2016-02-22 2016-02-18 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 65,304 65,304
2016-02-18 2016-02-15 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -11,406 0 -100.00
2016-02-18 2016-02-15 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 11,406 111,532 11.39
2015-02-24 2015-02-20 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 10,868 10,868
2015-02-24 2015-02-20 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 36,238 36,238
2014-08-27 2014-08-25 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -30,559 0 -100.00
2014-08-27 2014-08-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -30,559 100,126 -23.38 95.00 -2,903,203 9,512,290
2014-08-27 2014-08-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 30,559 130,685 30.52 22.92 700,259 2,994,647
2014-08-25 2014-08-22 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -31,594 0 -100.00
2014-08-25 2014-08-22 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -10,785 30,559 -26.09
2014-08-25 2014-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -42,379 100,126 -29.74 93.57 -3,965,560 9,369,160
2014-08-25 2014-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 31,594 142,505 28.49 10.26 324,233 1,462,458
2014-08-25 2014-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 10,785 110,911 10.77 22.92 247,138 2,541,526
2014-08-06 2014-08-04 4 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
P - Purchase 45,000 45,000 24.00 1,080,000 1,080,000
2014-08-06 2014-08-04 4 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
P - Purchase 45,000 45,000 24.00 1,080,000 1,080,000
2014-08-06 2014-08-04 4 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
P - Purchase 1,436,115 1,436,115
2014-07-29 3 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
2,872,230
2014-07-29 3 WLKP Westlake Chemical Partners LP
Common Units (Limited Partner Interests)
2,872,230
2014-06-10 2014-06-09 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -32,838 16,420 -66.67
2014-06-10 2014-06-09 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -10,108 20,218 -33.33
2014-06-10 2014-06-09 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -42,946 100,126 -30.02 82.01 -3,522,027 8,211,393
2014-06-10 2014-06-09 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 32,838 143,072 29.79 30.05 986,864 4,299,671
2014-06-10 2014-06-09 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 10,108 110,234 10.10 45.70 461,910 5,037,418
2014-02-21 2014-02-19 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -3,662 50,063 -6.82 129.00 -472,398 6,458,127
2014-02-21 2014-02-19 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -18 53,725 -0.03 129.58 -2,332 6,961,686
2014-02-19 2014-02-14 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 5,137 5,137
2014-02-19 2014-02-14 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 16,000 16,000
2014-01-02 2013-12-30 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -9,632 53,743 -15.20
2013-12-30 2013-12-27 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -1,000 63,375 -1.55
2013-12-30 2013-12-26 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -500 64,375 -0.77
2013-12-18 2013-12-16 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -1,000 64,875 -1.52
2013-03-04 2013-02-28 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -50 65,875 -0.08 84.70 -4,235 5,579,612
2013-03-04 2013-02-28 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -4,983 65,925 -7.03 84.09 -419,020 5,543,633
2013-02-20 2013-02-15 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 5,703 5,703
2013-02-20 2013-02-15 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 15,163 15,163
2013-02-20 2012-08-22 4/A WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -33,802 0 -100.00
2013-02-20 2012-08-22 4/A WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -33,802 90,908 -27.10 69.03 -2,333,217 6,275,016
2013-02-20 2012-08-22 4/A WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 33,802 124,710 37.18 14.24 481,171 1,775,247
2013-02-20 2012-05-29 4/A WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -70,194 33,802 -67.50
2013-01-10 2012-12-10 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -12,000 95,842 -11.13
2012-12-12 2012-12-10 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
G - Gift -8,000 107,842 -6.91
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise 30,193 15,797 -209.73
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -900 115,842 -0.77 75.71 -68,139 8,770,398
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 116,742 -0.09 75.68 -7,568 8,835,035
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 116,842 -0.09 75.67 -7,567 8,841,434
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 116,942 -0.09 75.66 -7,566 8,847,832
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 117,042 -0.26 75.65 -22,695 8,854,227
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 117,342 -0.09 75.59 -7,559 8,869,882
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 117,442 -0.17 75.58 -15,116 8,876,266
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 117,642 -0.08 75.55 -7,555 8,887,853
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 117,742 -0.17 75.53 -15,106 8,893,053
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -400 117,942 -0.34 75.51 -30,204 8,905,800
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 118,342 -0.17 75.50 -15,100 8,934,821
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 118,542 -0.17 75.50 -15,099 8,949,328
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 118,742 -0.25 75.48 -22,644 8,962,646
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 119,042 -0.17 75.44 -15,088 8,980,528
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 119,242 -0.17 75.43 -15,086 8,994,424
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 119,442 -0.08 75.40 -7,540 9,005,927
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -400 119,542 -0.33 75.39 -30,156 9,012,271
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -5,220 119,942 -4.17 75.35 -393,327 9,037,630
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,200 125,162 -1.73 75.34 -165,748 9,429,705
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -500 127,362 -0.39 75.33 -37,665 9,594,179
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,300 127,862 -1.01 75.31 -97,903 9,629,287
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,200 129,162 -0.92 75.30 -90,360 9,725,899
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 130,362 -0.23 75.27 -22,581 9,812,348
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,600 130,662 -1.21 72.26 -115,616 9,441,636
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -5,077 132,262 -3.70 75.25 -382,044 9,952,716
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -8,696 137,339 -5.95 75.23 -654,200 10,332,013
2012-12-11 2012-12-07 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 30,193 146,035 26.06 20.52 619,711 2,997,368
2012-12-10 2012-12-06 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -1,400 45,990 -2.95
2012-12-10 2012-12-06 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,400 115,842 -1.19 73.00 -102,200 8,456,466
2012-12-10 2012-12-06 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 1,400 117,242 1.21 20.52 28,735 2,406,392
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise 33,802 149,644 29.18
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 115,842 -0.86 69.08 -69,080 8,002,377
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 116,842 -0.85 69.08 -69,080 8,071,445
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -802 117,842 -0.68 69.06 -55,386 8,138,180
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 118,644 -0.08 69.06 -6,906 8,193,555
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 118,744 -0.84 69.05 -69,050 8,199,285
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -8,865 119,744 -6.89 69.05 -612,128 8,268,323
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -5,515 128,609 -4.11 69.03 -380,700 8,877,879
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 134,124 -0.22 69.02 -20,706 9,257,238
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 134,424 -0.07 69.01 -6,901 9,276,600
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -15,120 134,524 -10.10 69.00 -1,043,280 9,282,156
2012-08-24 2012-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 33,802 149,644 29.18 14.24 481,171 2,130,182
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -500 90,908 -0.55 57.27 -28,635 5,206,301
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 91,408 -0.22 57.23 -11,446 5,231,280
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 91,608 -0.22 57.21 -11,442 5,240,894
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 91,808 -0.11 57.19 -5,719 5,250,500
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 91,908 -0.11 57.18 -5,718 5,255,759
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 92,008 -0.22 57.18 -11,436 5,261,017
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 92,208 -0.22 57.17 -11,434 5,271,541
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,500 92,408 -1.60 57.17 -85,755 5,282,965
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -500 93,908 -0.53 57.16 -28,580 5,367,781
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,271 94,408 -1.33 57.15 -72,638 5,395,417
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -800 95,679 -0.83 57.11 -45,688 5,464,228
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,800 96,479 -2.82 57.10 -159,880 5,508,951
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 99,279 -0.10 57.08 -5,708 5,666,855
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,100 99,379 -1.09 57.08 -62,788 5,672,553
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,300 100,479 -1.28 57.07 -74,191 5,734,337
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,829 101,779 -1.77 57.05 -104,344 5,806,492
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -600 103,608 -0.58 57.04 -34,224 5,909,800
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 104,208 -0.10 57.03 -5,703 5,942,993
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -4,700 104,308 -4.31 57.03 -268,041 5,948,685
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,964 109,008 -1.77 57.02 -111,987 6,215,636
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -3,636 110,972 -3.17 57.01 -207,288 6,326,514
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -500 114,608 -0.43 57.00 -28,500 6,532,656
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 115,108 -0.26 56.99 -17,097 6,560,005
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -434 115,408 -0.37 56.98 -24,729 6,575,948
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise 70,194 35,097 -200.00
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,178 115,842 -1.85 56.97 -124,081 6,599,519
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -3,540 118,020 -2.91 56.96 -201,638 6,722,419
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -498 121,560 -0.41 56.95 -28,361 6,922,842
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 122,058 -0.08 56.94 -5,694 6,949,983
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,120 122,158 -0.91 56.93 -63,762 6,954,455
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 123,278 -0.08 56.92 -5,692 7,017,600
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,646 123,378 -2.10 56.92 -150,610 7,022,676
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -20 126,024 -0.02 56.91 -1,138 7,172,026
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -204 126,044 -0.16 56.90 -11,608 7,171,904
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -399 126,248 -0.32 56.88 -22,695 7,180,986
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -600 126,647 -0.47 56.87 -34,124 7,202,732
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,079 127,247 -1.61 56.87 -118,233 7,236,537
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -366 129,326 -0.28 56.86 -20,811 7,353,476
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -300 129,692 -0.23 56.85 -17,055 7,372,990
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 129,992 -0.15 56.84 -11,368 7,388,758
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -462 130,192 -0.35 56.84 -26,260 7,400,113
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 130,654 -0.08 56.83 -5,683 7,425,328
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -903 130,754 -0.69 56.83 -51,317 7,430,750
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 131,657 -0.75 56.82 -56,820 7,480,751
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -3,139 132,657 -2.31 56.81 -178,327 7,536,244
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -5,849 135,796 -4.13 56.80 -332,223 7,713,213
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -8,300 141,645 -5.54 56.79 -471,357 8,044,020
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -3,800 149,945 -2.47 56.78 -215,764 8,513,877
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 153,745 -0.65 56.76 -56,760 8,726,566
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,400 154,745 -0.90 56.75 -79,450 8,781,779
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -4,957 156,145 -3.08 56.74 -281,260 8,859,667
2012-05-31 2012-05-29 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 70,194 161,102 77.21 14.24 999,212 2,293,287
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Employee Option(right to buy)
M - Exercise 35,300 0 -100.00
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -900 90,908 -0.98 55.28 -49,752 5,025,394
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -700 91,108 -0.76 55.27 -38,689 5,035,539
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -308 92,508 -0.33 55.26 -17,020 5,111,992
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,248 92,816 -2.36 55.25 -124,202 5,128,084
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 95,064 -0.11 55.24 -5,524 5,251,345
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -3,107 95,164 -3.16 55.24 -171,631 5,256,859
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -816 98,271 -0.82 55.23 -45,068 5,427,507
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -338 99,087 -0.34 55.22 -18,664 5,471,584
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -297 99,425 -0.30 55.21 -16,397 5,489,254
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -6,158 99,722 -5.82 55.20 -339,922 5,504,654
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,428 105,880 -2.24 55.19 -134,001 5,843,517
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -500 108,308 -0.46 55.18 -27,590 5,976,435
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,300 108,808 -2.07 55.17 -126,891 6,002,937
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -500 111,108 -0.45 55.16 -27,580 6,128,717
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -224 111,608 -0.20 55.15 -12,354 6,155,181
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -206 111,832 -0.18 55.13 -11,357 6,165,298
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -200 112,038 -0.18 55.12 -11,024 6,175,535
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -100 112,238 -0.09 55.12 -5,512 6,185,997
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 112,338 -0.88 55.11 -55,110 6,190,947
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -3,370 113,338 -2.89 55.10 -185,687 6,244,924
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,100 116,708 -0.93 55.09 -60,599 6,429,444
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,000 117,808 -0.84 55.08 -55,080 6,488,865
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -7,400 118,808 -5.86 55.07 -407,518 6,542,757
2012-05-29 2012-05-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 35,300 126,208 38.83 14.50 511,850 1,830,016
2012-02-22 2012-02-17 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 30,787 30,787
2012-02-22 2012-02-17 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
A - Award 24,629 24,629
2012-02-22 2012-02-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
A - Award 9,586 90,908 11.79
2012-02-16 2012-02-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -377 81,322 -0.46 58.15 -21,924 4,729,200
2012-02-16 2012-02-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -200 81,699 -0.24 58.10 -11,619 4,746,303
2012-02-16 2012-02-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
F - Taxes -14,708 81,899 -15.22 57.08 -839,533 4,674,795
P
Pembelian sekuritas non-derivatif atau derivatif di pasar terbuka atau secara pribadi.
S
Penjualan terbuka atau penjualan pribadi atas sekuritas non-derivatif atau derivatif.
A
Hibah, penghargaan, atau perolehan sekuritas lainnya dari perusahaan (seperti opsi)
C
Konversi turunan
D
Penjualan atau pengalihan sekuritas kembali ke perusahaan.
F
Pembayaran harga pelaksanaan atau kewajiban pajak menggunakan sebagian sekuritas yang diterima dari perusahaan.
G
Pemberian sekuritas oleh atau kepada orang dalam.
K
Swap ekuitas dan transaksi lindung nilai serupa
M
Pelaksanaan atau konversi sekuritas derivatif yang diterima dari perusahaan (seperti opsi)
V
Transaksi yang dilaporkan secara sukarela pada Formulir 4.
J
Lainnya (disertai dengan catatan kaki yang menjelaskan transaksi tersebut)