Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Westlake Chemical Partners Lp (WLKP) since 2016 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Westlake Chemical Partners Lp. Table 2 shows the detailed insider transactions. This company's CIK number is 1604665.
Total stock buying since 2016: $38,562,313.
Total stock sales since 2016: $1,268,235.
Total stock option exercises since 2016: $0.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 7,470 | $163,621 | 13,908 | $307,759 | 14,646 | $0 |
| 2024 | 82,402 | $1,838,436 | 0 | $0 | 18,564 | $0 |
| 2023 | 76,609 | $1,705,285 | 0 | $0 | 8,354 | $0 |
| 2022 | 23,638 | $602,173 | 31,092 | $845,826 | 11,178 | $0 |
| 2021 | 4,000 | $93,872 | 0 | $0 | 20,439 | $0 |
| 2020 | 91,000 | $1,251,754 | 0 | $0 | 8,996 | $0 |
| 2019 | 1,401,869 | $29,999,996 | 5,000 | $114,650 | 19,677 | $0 |
| 2018 | 81,435 | $1,879,178 | 0 | $0 | 19,364 | $0 |
| 2017 | 41,048 | $922,998 | 0 | $0 | 2,202 | $0 |
| 2016 | 5,000 | $105,000 | 0 | $0 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-08 | 7,295 | $159,528 | 0 | $0 | 14,646 | $0 |
| 2025-05 | 93 | $2,064 | 13,908 | $307,759 | 0 | $0 |
| 2025-02 | 82 | $2,029 | 0 | $0 | 0 | $0 |
| 2024-11 | 84 | $1,979 | 0 | $0 | 0 | $0 |
| 2024-08 | 18,619 | $426,544 | 0 | $0 | 13,680 | $0 |
| 2024-05 | 39,469 | $872,367 | 0 | $0 | 4,884 | $0 |
| 2024-03 | 14,230 | $316,386 | 0 | $0 | 0 | $0 |
| 2024-02 | 10,000 | $221,160 | 0 | $0 | 0 | $0 |
| 2023-11 | 15,000 | $327,580 | 0 | $0 | 0 | $0 |
| 2023-08 | 46,609 | $1,050,300 | 0 | $0 | 8,354 | $0 |
| 2023-03 | 15,000 | $327,405 | 0 | $0 | 0 | $0 |
| 2022-11 | 5,638 | $129,549 | 0 | $0 | 0 | $0 |
| 2022-08 | 0 | $0 | 0 | $0 | 11,178 | $0 |
| 2022-05 | 0 | $0 | 31,092 | $845,826 | 0 | $0 |
| 2022-03 | 18,000 | $472,624 | 0 | $0 | 0 | $0 |
| 2021-08 | 0 | $0 | 0 | $0 | 14,781 | $0 |
| 2021-05 | 0 | $0 | 0 | $0 | 5,658 | $0 |
| 2021-03 | 4,000 | $93,872 | 0 | $0 | 0 | $0 |
| 2020-11 | 2,000 | $37,214 | 0 | $0 | 4,358 | $0 |
| 2020-08 | 0 | $0 | 0 | $0 | 4,638 | $0 |
| 2020-03 | 89,000 | $1,214,540 | 0 | $0 | 0 | $0 |
| 2019-11 | 0 | $0 | 5,000 | $114,650 | 3,436 | $0 |
| 2019-08 | 0 | $0 | 0 | $0 | 16,241 | $0 |
| 2019-03 | 1,401,869 | $29,999,996 | 0 | $0 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-27 | Gilson Jean-marc (President and CEO) | Buy | 95 | 21.25 | 2,018 |
| 2025-08-21 | Gilson Jean-marc (President and CEO) | Buy | 1,250 | 22.02 | 27,530 |
| 2025-08-20 | Gilson Jean-marc (President and CEO) | Buy | 1,250 | 21.86 | 27,328 |
| 2025-08-15 | Gilson Jean-marc (President and CEO) | Buy | 4,700 | 21.84 | 102,652 |
| 2025-08-07 | Friel Lisa A. | Option Ex | 4,882 | .00 | 0 |
| 2025-08-07 | Woelfel Randy | Option Ex | 4,882 | .00 | 0 |
| 2025-08-07 | Finley G Stephen | Option Ex | 4,882 | .00 | 0 |
| 2025-05-29 | Gilson Jean-marc (President and CEO) | Buy | 93 | 22.20 | 2,064 |
| 2025-05-29 | Chao James (Senior Chairman) | Sale | 3,700 | 22.10 | 81,770 |
| 2025-05-28 | Chao James (Senior Chairman) | Sale | 4,600 | 22.10 | 101,660 |
| 2025-05-27 | Chao James (Senior Chairman) | Sale | 5,608 | 22.17 | 124,329 |
| 2025-02-25 | Gilson Jean-marc (President and CEO) | Buy | 82 | 24.75 | 2,029 |
| 2024-11-27 | Gilson Jean-marc (President and CEO) | Buy | 84 | 23.57 | 1,979 |
| 2024-08-29 | Gilson Jean-marc (President and CEO) | Buy | 1,000 | 22.83 | 22,830 |
| 2024-08-28 | Gilson Jean-marc (President and CEO) | Buy | 500 | 22.94 | 11,470 |
| 2024-08-27 | Gilson Jean-marc (President and CEO) | Buy | 1,000 | 22.95 | 22,950 |
| 2024-08-26 | Gilson Jean-marc (President and CEO) | Buy | 500 | 22.84 | 11,422 |
| 2024-08-23 | Gilson Jean-marc (President and CEO) | Buy | 500 | 22.88 | 11,440 |
| 2024-08-22 | Gilson Jean-marc (President and CEO) | Buy | 427 | 22.60 | 9,650 |
| 2024-08-12 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 2,692 | 22.63 | 60,914 |
| 2024-08-09 | Friel Lisa A. | Option Ex | 4,560 | .00 | 0 |
| 2024-08-09 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 12,000 | 22.99 | 275,868 |
| 2024-08-09 | Woelfel Randy | Option Ex | 4,560 | .00 | 0 |
| 2024-08-09 | Finley G Stephen | Option Ex | 4,560 | .00 | 0 |
| 2024-05-30 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 2,291 | 22.23 | 50,928 |
| 2024-05-10 | Friel Lisa A. | Option Ex | 4,884 | .00 | 0 |
| 2024-05-10 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 7,178 | 22.07 | 158,439 |
| 2024-05-08 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 20,000 | 22.10 | 442,000 |
| 2024-03-28 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 22.23 | 111,150 |
| 2024-03-21 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 4,230 | 22.16 | 93,736 |
| 2024-03-06 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 22.30 | 111,500 |
| 2024-02-22 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 10,000 | 22.12 | 221,160 |
| 2023-11-09 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 21.48 | 107,400 |
| 2023-11-06 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 10,000 | 22.02 | 220,180 |
| 2023-08-29 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 10,000 | 22.74 | 227,380 |
| 2023-08-22 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 11,762 | 22.30 | 262,304 |
| 2023-08-21 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 643 | 22.11 | 14,216 |
| 2023-08-17 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 22.08 | 110,410 |
| 2023-08-16 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 3,349 | 22.23 | 74,434 |
| 2023-08-15 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 855 | 22.00 | 18,806 |
| 2023-08-10 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 22.55 | 112,750 |
| 2023-08-10 | Woelfel Randy (Director) | Option Ex | 4,177 | .00 | 0 |
| 2023-08-10 | Finley G Stephen (Director) | Option Ex | 4,177 | .00 | 0 |
| 2023-08-09 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 23.00 | 115,000 |
| 2023-08-07 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 23.00 | 115,000 |
| 2023-03-13 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,000 | 21.44 | 107,205 |
| 2023-03-10 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 10,000 | 22.02 | 220,200 |
| 2022-11-10 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 5,638 | 22.98 | 129,549 |
| 2022-08-11 | Woelfel Randy | Option Ex | 3,726 | .00 | 0 |
| 2022-08-11 | Minas Angela A | Option Ex | 3,726 | .00 | 0 |
| 2022-08-11 | Finley G Stephen | Option Ex | 3,726 | .00 | 0 |
| 2022-05-31 | Chao James (Chairman) | Sale | 31,092 | 27.20 | 845,826 |
| 2022-03-08 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 10,000 | 26.34 | 263,400 |
| 2022-03-07 | Kenner Andrew (SVP, Olefin Material & Corp Pr) | Buy | 8,000 | 26.15 | 209,224 |
| 2021-08-12 | Woelfel Randy | Option Ex | 4,927 | .00 | 0 |
| 2021-08-12 | Minas Angela A | Option Ex | 4,927 | .00 | 0 |
| 2021-08-12 | Finley G Stephen | Option Ex | 4,927 | .00 | 0 |
| 2021-05-14 | Finley G Stephen | Option Ex | 5,658 | .00 | 0 |
| 2021-03-05 | Finley G Stephen | Buy | 4,000 | 23.47 | 93,872 |
| 2020-11-14 | Woelfel Randy | Option Ex | 4,358 | .00 | 0 |
| 2020-11-13 | Woelfel Randy | Buy | 500 | 18.59 | 9,295 |
| 2020-11-12 | Woelfel Randy | Buy | 500 | 18.70 | 9,349 |
| 2020-11-11 | Woelfel Randy | Buy | 1,000 | 18.57 | 18,570 |
| 2020-08-14 | Minas Angela A | Option Ex | 4,638 | .00 | 0 |
| 2020-03-24 | Chao Albert (President & CEO) | Buy | 4,779 | 13.82 | 66,045 |
| 2020-03-23 | Ederington L. Benjamin (VP, General Counsel) | Buy | 1,000 | 13.83 | 13,830 |
| 2020-03-23 | Woelfel Randy | Buy | 3,000 | 13.14 | 39,420 |
| 2020-03-23 | Chao Albert (President & CEO) | Buy | 4,780 | 13.12 | 62,713 |
| 2020-03-20 | Woelfel Randy | Buy | 3,000 | 13.90 | 41,691 |
| 2020-03-20 | Chao Albert (President & CEO) | Buy | 13,681 | 14.07 | 192,491 |
| 2020-03-19 | Chao Albert (President & CEO) | Buy | 9,135 | 13.32 | 121,678 |
| 2020-03-18 | Woelfel Randy | Buy | 4,000 | 11.91 | 47,640 |
| 2020-03-18 | Chao Albert (President & CEO) | Buy | 15,974 | 11.78 | 188,093 |
| 2020-03-17 | Chao Albert (President & CEO) | Buy | 10,536 | 13.93 | 146,713 |
| 2020-03-16 | Chao Albert (President & CEO) | Buy | 7,535 | 14.15 | 106,620 |
| 2020-03-13 | Bender Mark Steven (SVP, CFO) | Buy | 1,000 | 14.91 | 14,914 |
| 2020-03-13 | Chao Albert (President & CEO) | Buy | 3,580 | 15.18 | 54,344 |
| 2020-03-12 | Ederington L. Benjamin (VP, General Counsel) | Buy | 1,000 | 16.01 | 16,010 |
| 2020-03-12 | Bender Mark Steven (SVP, CFO) | Buy | 1,000 | 15.07 | 15,073 |
| 2020-03-11 | Teel Lawrence E. (SVP, Olefins) | Buy | 2,500 | 16.80 | 42,000 |
| 2020-03-10 | Teel Lawrence E. (SVP, Olefins) | Buy | 2,500 | 18.11 | 45,265 |
| 2019-11-15 | Minas Angela A | Option Ex | 3,436 | .00 | 0 |
| 2019-11-12 | Mangieri George J (VP & Chief Accounting Officer) | Sale | 5,000 | 22.93 | 114,650 |
| 2019-08-19 | Lumpkins David | Option Ex | 3,232 | .00 | 0 |
| 2019-08-19 | Lukens Max L | Option Ex | 3,232 | .00 | 0 |
| 2019-08-15 | Lumpkins David | Option Ex | 3,259 | .00 | 0 |
| 2019-08-15 | Minas Angela A | Option Ex | 3,259 | .00 | 0 |
| 2019-08-15 | Lukens Max L | Option Ex | 3,259 | .00 | 0 |
| 2019-03-29 | Ttwfgp Llc | Buy | 1,401,869 | 21.40 | 29,999,996 |
| 2018-11-30 | Lumpkins David | Buy | 4,000 | 22.56 | 90,240 |
| 2018-11-26 | Minas Angela A | Buy | 5,000 | 22.75 | 113,750 |
| 2018-11-19 | Chao Albert (President & CEO) | Buy | 10,386 | 23.24 | 241,370 |
| 2018-11-16 | Chao Albert (President & CEO) | Buy | 12,452 | 23.27 | 289,758 |
| 2018-11-15 | Chao Albert (President & CEO) | Buy | 2,492 | 23.20 | 57,819 |
| 2018-11-14 | Chao Albert (President & CEO) | Buy | 11,385 | 23.37 | 266,056 |
| 2018-11-13 | Chao Albert (President & CEO) | Buy | 6,220 | 23.24 | 144,577 |
| 2018-11-12 | Lumpkins David | Buy | 4,000 | 22.83 | 91,312 |
| 2018-11-12 | Chao James | Buy | 10,000 | 22.77 | 227,700 |
| 2018-08-19 | Lumpkins David | Option Ex | 3,341 | .00 | 0 |
| 2018-08-19 | Lukens Max L | Option Ex | 3,341 | .00 | 0 |
| 2018-08-16 | Lumpkins David | Option Ex | 3,382 | .00 | 0 |
| 2018-08-16 | Minas Angela A | Option Ex | 3,382 | .00 | 0 |
| 2018-08-16 | Lukens Max L | Option Ex | 3,382 | .00 | 0 |
| 2018-03-06 | Chao Albert (President & CEO) | Buy | 2,000 | 23.16 | 46,320 |
| 2018-03-05 | Chao Albert (President & CEO) | Buy | 2,000 | 22.91 | 45,820 |
| 2018-03-02 | Teel Lawrence E. (SVP, Olefins) | Buy | 1,900 | 22.75 | 43,225 |
| 2018-03-02 | Chao Albert (President & CEO) | Buy | 2,000 | 22.86 | 45,720 |
| 2018-03-01 | Teel Lawrence E. (SVP, Olefins) | Buy | 3,100 | 22.75 | 70,525 |
| 2018-03-01 | Chao Albert (President & CEO) | Buy | 2,500 | 22.98 | 57,450 |
| 2018-02-27 | Bender Mark Steven (SVP, CFO and Treasurer) | Buy | 2,000 | 23.77 | 47,536 |
| 2018-01-30 | Lumpkins David | Option Ex | 2,536 | .00 | 0 |
| 2017-12-04 | Chao James | Buy | 8,473 | 22.17 | 187,846 |
| 2017-11-29 | Chao Albert (President & CEO) | Buy | 7,425 | 22.00 | 163,350 |
| 2017-11-28 | Chao Albert (President & CEO) | Buy | 7,475 | 21.96 | 164,151 |
| 2017-11-27 | Chao Albert (President & CEO) | Buy | 7,475 | 22.18 | 165,795 |
| 2017-11-24 | Chao Albert (President & CEO) | Buy | 2,900 | 21.97 | 63,704 |
| 2017-11-22 | Chao Albert (President & CEO) | Buy | 2,000 | 21.49 | 42,988 |
| 2017-08-20 | Lukens Max L | Option Ex | 2,202 | .00 | 0 |
| 2017-08-07 | Teel Lawrence E. (SVP, Olefins) | Buy | 300 | 25.15 | 7,544 |
| 2017-03-09 | Lumpkins David | Buy | 2,500 | 25.42 | 63,540 |
| 2017-03-07 | Lumpkins David | Buy | 2,500 | 25.63 | 64,080 |
| 2016-11-30 | Minas Angela A | Buy | 5,000 | 21.00 | 105,000 |
Insider trading activities including stock purchases, stock sales, and option exercises of WLKP listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Westlake Chemical Partners Lp (symbol WLKP, CIK number 1604665) see the Securities and Exchange Commission (SEC) website.