8/6/14 16:23  | 8/4/14  | WLKP | Westlake Chemical Partners LP | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | P | 240 | 24.00 | 33 | 10 | New | 10 | D |  |  |  |  |  |  |  | -5 | 2 | 1 | 16 | 3 | -13 | -26 | 
3/3/14 16:28  | 2/28/14  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 286 | 67.54 | 33 | 4 | 46 | 13 | D | 134 | 56 | 32 | 18 | 8 | 8 | 3 | 2 | 1 | 2 | -1 | 21 | 44 | 1 | 
3/3/14 16:28  | 2/28/14  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -569 | 134.50 | 33 | -4 | -24 | 13 | D | 134 | 56 | 32 | 18 | 8 | 8 | 3 | 2 | 1 | 2 | -1 | 21 | 44 | 1 | 
3/18/13 17:35  | 3/14/13  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 84 | 18.31 | 33 | 5 | 49 | 14 | D | 107 | 57 | 44 | 26 | 6 | 15 | 7 | 2 | 0 | -2 | -14 | 3 | 8 | 41 | 
3/18/13 17:35  | 3/14/13  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -540 | 96.45 | 33 | -6 | -28 | 14 | D | 107 | 57 | 44 | 26 | 6 | 15 | 7 | 2 | 0 | -2 | -14 | 3 | 8 | 41 | 
3/18/13 17:31  | 8/6/12  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.a | -1,635 | 67.15 | 33 | -24 | -60 | 16 | D | 107 | 57 | 44 | 26 | 6 | 15 | 7 | 2 | 0 | -2 | -14 | 3 | 8 | 41 | 
12/11/12 17:32  | 12/7/12  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 71 | 14.24 | 33 | 5 | 433 | 6 | D | 105 | 93 | 58 | 14 | 8 | 9 | 6 | 6 | 0 | 2 | 11 | 23 | 20 | 50 | 
12/11/12 17:32  | 12/7/12  | WLK | Westlake Chemical Corp | DE | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -368 | 73.65 | 33 | -5 | -45 | 6 | D | 105 | 93 | 58 | 14 | 8 | 9 | 6 | 6 | 0 | 2 | 11 | 23 | 20 | 50 | 
8/8/12 18:58  | 8/6/12  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 425 | 29.33 | 33 | 14 |  | 6 | D | 143 | 87 | 13 | 21 | 38 | 18 | 13 | 7 | -1 | -2 | 5 | 15 | 43 | 57 | 
8/8/12 18:58  | 8/6/12  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -2,511 | 73.46 | 33 | -34 | -85 | 6 | D | 143 | 87 | 13 | 21 | 38 | 18 | 13 | 7 | -1 | -2 | 5 | 15 | 43 | 57 | 
3/4/11 16:09  | 3/2/11  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 214 | 16.93 | 33 | 13 | 84 | 28 | D | 310 | 114 | 77 | 27 | 20 | 13 | 1 | 2 | -1 | -4 | 15 | 13 | -7 | 24 | 
3/4/11 16:09  | 3/2/11  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -606 | 48.00 | 33 | -13 | -31 | 28 | D | 310 | 114 | 77 | 27 | 20 | 13 | 1 | 2 | -1 | -4 | 15 | 13 | -7 | 24 | 
3/2/11 16:08  | 2/28/11  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 274 | 30.77 | 33 | 9 | 47 | 28 | D | 305 | 106 | 83 | 24 | 7 | 8 | 1 | 2 | 2 | 5 | 17 | 17 | -7 | 27 | 
3/2/11 16:08  | 2/28/11  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -422 | 47.43 | 33 | -9 | -24 | 28 | D | 305 | 106 | 83 | 24 | 7 | 8 | 1 | 2 | 2 | 5 | 17 | 17 | -7 | 27 | 
11/9/10 16:17  | 11/5/10  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 211 | 16.65 | 17 | 13 | 87 | 27 | D | 173 | 48 | 63 | 36 | 26 | 18 | 18 | 12 | 2 | -1 | 9 | 17 | 63 | 7 | 
11/9/10 16:17  | 11/5/10  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -458 | 36.15 | 17 | -13 | -32 | 27 | D | 173 | 48 | 63 | 36 | 26 | 18 | 18 | 12 | 2 | -1 | 9 | 17 | 63 | 7 | 
8/18/10 16:30  | 8/16/10  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S | -38 | 28.57 | 13 | -1 | -5 | 27 | D | 39 | 20 | 40 | 27 | 53 | 14 | 0 | 1 | -4 | -9 | 6 | 33 | 58 | 53 | 
8/11/09 14:25  | 8/7/09  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 113 | 14.50 | 12 | 8 | 43 | 26 | D | -19 | 25 | 68 | 18 | 17 | 11 | -2 | 0 | 0 | -5 | 3 | 5 | -18 | 15 | 
8/11/09 14:25  | 8/7/09  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -232 | 24.54 | 12 | -9 | -27 | 26 | D | -19 | 25 | 68 | 18 | 17 | 11 | -2 | 0 | 0 | -5 | 3 | 5 | -18 | 15 | 
11/16/06 17:25  | 11/15/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S | -18 | 34.22 | 24 | -1 | -16 | 3 | D | 25 | 17 | 11 | 13 | 6 | 2 | 7 | 2 | -6 | -4 | -7 | -7 | -17 | -45 | 
9/1/06 16:17  | 8/31/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 68 | 14.50 | 17 | 5 |  | 3 | D | 69 | 9 | -14 | -3 | 11 | 0 | 1 | 5 | 0 | 0 | 3 | 8 | -6 | -11 | 
9/1/06 16:17  | 8/31/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -138 | 29.40 | 17 | -5 | -58 | 3 | D | 69 | 9 | -14 | -3 | 11 | 0 | 1 | 5 | 0 | 0 | 3 | 8 | -6 | -11 | 
8/31/06 16:00  | 8/30/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 23 | 14.50 | 19 | 2 | 85 | 3 | D | 69 | 9 | -16 | -6 | 10 | -2 | -2 | 3 | 1 | -2 | 7 | 13 | -6 | -9 | 
8/31/06 16:00  | 8/30/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -46 | 29.40 | 19 | -2 | -31 | 3 | D | 69 | 9 | -16 | -6 | 10 | -2 | -2 | 3 | 1 | -2 | 7 | 13 | -6 | -9 | 
8/23/06 16:37  | 8/22/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 22 | 14.50 | 19 | 2 | 79 | 3 | D | 90 | 0 | -16 | -2 | 4 | 6 | -1 | -2 | -3 | 0 | 11 | 14 | 8 | -7 | 
8/23/06 16:37  | 8/22/06  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -45 | 30.00 | 19 | -2 | -31 | 3 | D | 90 | 0 | -16 | -2 | 4 | 6 | -1 | -2 | -3 | 0 | 11 | 14 | 8 | -7 | 
8/22/05 11:17  | 8/19/05  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | M.d | 39 | 14.50 | 12 | 3 |  | 0 | D |  | 94 | -6 | 20 | 0 | -5 | -4 | -3 | 0 | -10 | -11 | 1 | 13 | 1 | 
8/22/05 11:17  | 8/19/05  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP Admi | S.d | -81 | 30.00 | 12 | -3 | -88 | 0 | D |  | 94 | -6 | 20 | 0 | -5 | -4 | -3 | 0 | -10 | -11 | 1 | 13 | 1 | 
8/17/05 16:38  | 8/16/05  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SR-VP- A | M.d | 73 | 14.50 | 13 | 5 |  | 0 | D |  | 104 | -11 | 36 | 18 | -5 | -2 | -6 | 0 | -3 | -10 | -3 | 8 | 1 | 
8/17/05 16:38  | 8/16/05  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SR-VP- A | S.d | -159 | 31.40 | 13 | -5 | -93 | 0 | D |  | 104 | -11 | 36 | 18 | -5 | -2 | -6 | 0 | -3 | -10 | -3 | 8 | 1 | 
8/18/04 14:11  | 8/16/04  | WLK | Westlake Chemical Corp |  | Chem | OChm | Industrial Organic Chemicals | Hansen David R | TX | O | SVP | P.d | 4 | 14.50 | 10 | 0 | 300 | 0 | D |  |  |  |  |  |  |  | 3 | -1 | 6 | 25 | 73 | 129 | 104 |