MarketPeel
Insider Trading Intelligence
Pricing
…
AC

Albert Chao

WLKP
PRESIDENT & CEO · WESTLAKE CHEMICAL PARTNERS LP · CIK 0001299403
FILING MIX · LIFETIME46%/54%
BUYS
57
SELLS
67
TOTAL VALUE
$61.84M
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
181,380
AVG SELL PX
$101.66
TRADE KIND
SHOWING 124 / 124
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
35 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Albert Chao, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d35+51.43%+8.64%+2.64%+6.00%+2.19%2.64
14d35+42.86%+6.89%+3.83%+3.06%-0.23%1.75
30d35+51.43%+9.31%+7.05%+2.26%+3.09%1.21
60d35+51.43%+19.97%+8.00%+11.97%+10.38%3.87
90d35+51.43%+30.96%+11.18%+19.78%+24.50%5.16
180d35+51.43%+43.70%+16.11%+27.59%+23.37%6.28
1y35(3 pending)+53.13%+57.22%+29.56%+27.66%+28.85%6.07
2y35(3 pending)+43.75%+85.14%+44.07%+41.07%+41.91%8.65
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
WLKP · 166,435 shares · as of Mar 24, 2020
041,60983,218124,826166,435SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 57 buys / 67 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
54,763——54,763Feb 20, 2026Feb 23, 2026 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
2,501$94.10$235.3K642,880Feb 20, 2026Feb 23, 2026 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
14,945——14,945Feb 20, 2026Feb 23, 2026 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
6,193——645,381Feb 19, 2026Feb 23, 2026 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
5,089$98.95$503.6K639,188Feb 18, 2026Feb 19, 2026 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
16,555——0Feb 17, 2026Feb 19, 2026 ↗View →
WLK
WESTLAKE CORP
PURCHASE
Executive Chairman
16,555——644,277Feb 17, 2026Feb 19, 2026 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
9,711$72.82$707.1K658,847Dec 22, 2025Dec 23, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
521$74.44$38.8K627,722Dec 22, 2025Dec 23, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
30,604$73.80$2.26M628,243Dec 22, 2025Dec 23, 2025 ↗View →
WLK
WESTLAKE CORP
PURCHASE
Executive Chairman
81,673$44.42$3.63M668,558Dec 22, 2025Dec 23, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
81,673——0Dec 22, 2025Dec 23, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
13,390$110.54$1.48M586,885Feb 21, 2025Feb 24, 2025 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
12,322——12,322Feb 21, 2025Feb 24, 2025 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
37,172——37,172Feb 21, 2025Feb 24, 2025 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
33,456——600,275Feb 20, 2025Feb 24, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
249$112.73$28.1K566,819Feb 19, 2025Feb 20, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
5,820$111.46$648.7K567,068Feb 19, 2025Feb 20, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
17,972——0Feb 18, 2025Feb 20, 2025 ↗View →
WLK
WESTLAKE CORP
PURCHASE
Executive Chairman
17,972——572,888Feb 18, 2025Feb 20, 2025 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
7$147.04$1.0K554,916Aug 16, 2024Aug 19, 2024 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
45,291$146.61$6.64M554,923Aug 16, 2024Aug 19, 2024 ↗View →
WLK
WESTLAKE CORP
PURCHASE
Executive Chairman
45,298$68.09$3.08M600,214Aug 16, 2024Aug 19, 2024 ↗View →
WLK
WESTLAKE CORP
SALE
Executive Chairman
45,298——0Aug 16, 2024Aug 19, 2024 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
12$135.43$1.6K557,123Feb 20, 2024Feb 21, 2024 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
2,207$137.37$303.2K554,916Feb 20, 2024Feb 21, 2024 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
22,561$129.92$2.93M557,135Feb 20, 2024Feb 21, 2024 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
19,810——0Feb 19, 2024Feb 21, 2024 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
19,810——579,696Feb 19, 2024Feb 21, 2024 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
16,010——16,010Feb 16, 2024Feb 20, 2024 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
44,324——44,324Feb 16, 2024Feb 20, 2024 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
39,738——559,886Feb 16, 2024Feb 21, 2024 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
19,988——0Aug 31, 2023Sep 1, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
8,397$131.94$1.11M520,465Aug 31, 2023Sep 1, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
11,274$131.20$1.48M528,862Aug 31, 2023Sep 1, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
317$132.67$42.1K520,148Aug 31, 2023Sep 1, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
19,988$63.98$1.28M540,136Aug 31, 2023Sep 1, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
17,685$134.09$2.37M522,463Aug 30, 2023Aug 31, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
20,000——19,988Aug 30, 2023Aug 31, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
2,315$134.60$311.6K520.148Aug 30, 2023Aug 31, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
20,000$63.98$1.28M540,148Aug 30, 2023Aug 31, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
20,867$104.32$2.18M521,257Mar 13, 2023Mar 15, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
1,109$104.70$116.1K520,148Mar 13, 2023Mar 15, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
52,252——542,124Feb 17, 2023Mar 15, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
52,252——542,124Feb 17, 2023Feb 17, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
45,196——45,196Feb 17, 2023Feb 21, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
16,555——16,555Feb 17, 2023Feb 21, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
127$122.57$15.6K489,872Feb 15, 2023Feb 16, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
9,032$121.86$1.10M489,999Feb 15, 2023Feb 16, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
26,048——499,031Feb 14, 2023Feb 16, 2023 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
26,048——0Feb 14, 2023Feb 16, 2023 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
37,876$45.70$1.73M510,859May 19, 2022May 23, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
20,815$130.20$2.71M478,028May 19, 2022May 23, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
5,045$129.38$652.7K472,983May 19, 2022May 23, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
12,016$131.11$1.58M498,843May 19, 2022May 23, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
37,876——0May 19, 2022May 23, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President and CEO
12,138$118.51$1.44M472,983Mar 14, 2022Mar 15, 2022 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
30,577——485,121Feb 18, 2022Mar 15, 2022 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
30,577——485,121Feb 18, 2022Feb 18, 2022 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
56,819——56,819Feb 18, 2022Feb 22, 2022 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
17,972——17,972Feb 18, 2022Feb 22, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
5,722$104.96$600.6K454,571Feb 16, 2022Feb 17, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
27$105.97$2.9K454,544Feb 16, 2022Feb 17, 2022 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
18,354——460,293Feb 15, 2022Feb 17, 2022 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
18,354——0Feb 15, 2022Feb 17, 2022 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
30,787$30.05$925.2K472,726Dec 2, 2021Dec 6, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
7,585$91.52$694.2K462,266Dec 2, 2021Dec 6, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
30,787——0Dec 2, 2021Dec 6, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
1,700$89.25$151.7K471,026Dec 2, 2021Dec 6, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
20,327$92.29$1.88M441,939Dec 2, 2021Dec 6, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
1,175$90.12$105.9K469,851Dec 2, 2021Dec 6, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
9,656$89.47$863.9K463,070Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
5,842$91.83$536.5K454,228Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
30,787——30,787Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
4,300$93.98$404.1K445,728Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
3,000$90.47$271.4K460,070Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
4,200$92.78$389.7K450,028Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
3,789$94.80$359.2K441,939Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
30,787$30.05$925.2K472,726Dec 1, 2021Dec 3, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
3,000$86.21$258.6K441,939Aug 11, 2021Aug 12, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
68,074——68,074Feb 19, 2021Feb 22, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
19,810——19,810Feb 19, 2021Feb 22, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
3,685$85.08$313.5K438,939Feb 18, 2021Feb 18, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
971$85.73$83.2K430,641Feb 16, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
10$87.69$877431,612Feb 16, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
10$87.69$877431,612Feb 16, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
971$85.73$83.2K430,641Feb 16, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
11,983——0Feb 16, 2021Feb 18, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
11,983——442,624Feb 16, 2021Feb 18, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
3,966——0Feb 14, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
3,966——431,622Feb 14, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
3,966——431,622Feb 14, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
3,966——0Feb 14, 2021Feb 17, 2021 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
55,148$22.92$1.26M482,804Nov 6, 2020Nov 10, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
4,198$75.12$315.4K427,656Nov 6, 2020Nov 10, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
55,148——0Nov 6, 2020Nov 10, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
28,638$72.08$2.06M454,166Nov 6, 2020Nov 10, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
11,978$73.30$878.0K442,188Nov 6, 2020Nov 10, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
10,334$74.29$767.7K431,854Nov 6, 2020Nov 10, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
3,200$13.46$43.1K164,856Mar 24, 2020Mar 25, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
1,579$14.18$22.4K166,435Mar 24, 2020Mar 25, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
4,780$13.12$62.7K161,656Mar 23, 2020Mar 24, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
1,400$14.28$20.0K156,876Mar 20, 2020Mar 23, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
12,281$13.86$170.2K155,476Mar 20, 2020Mar 23, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
7,035$14.20$99.9K143,195Mar 19, 2020Mar 20, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
2,100$12.44$26.1K136,160Mar 19, 2020Mar 20, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
5,796$12.12$70.2K134,060Mar 18, 2020Mar 19, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
10,178$11.43$116.3K128,264Mar 18, 2020Mar 19, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
3,680$14.26$52.5K118,086Mar 17, 2020Mar 18, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
6,856$13.59$93.2K114,406Mar 17, 2020Mar 18, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
7,535$14.15$106.6K107,550Mar 16, 2020Mar 17, 2020 ↗View →
WLKP
WESTLAKE CHEMICAL PARTNERS LP
PURCHASE
President & CEO
3,580$15.18$54.3K100,015Mar 13, 2020Mar 16, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
57,800——0Feb 26, 2020Feb 27, 2020 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
68,698$10.26$704.8K421,448Feb 21, 2020Feb 24, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
51,592$62.42$3.22M369,856Feb 21, 2020Feb 24, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
68,698——57,800Feb 21, 2020Feb 24, 2020 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
57,800$10.26$593.0K427,656Feb 21, 2020Feb 27, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
380$61.26$23.3K352,750Feb 18, 2020Feb 19, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
5,711$60.50$345.5K353,130Feb 18, 2020Feb 19, 2020 ↗View →
WLK
WESTLAKE CORP
PURCHASE
President & CEO
19,902——358,841Feb 17, 2020Feb 19, 2020 ↗View →
WLK
WESTLAKE CORP
SALE
President & CEO
19,902——0Feb 17, 2020Feb 19, 2020 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
110,186——110,186Feb 14, 2020Feb 18, 2020 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
3,966——3,966Feb 14, 2020Feb 18, 2020 ↗View →
WLK
WESTLAKE CORP
PURCHASEGRANT
Stock grant
26,048——26,048Feb 14, 2020Feb 18, 2020 ↗View →
Other insiders · WLKP
Loading peer insiders…
About this filer
CIK 0001299403
ROLE
President & CEO
PRIMARY
WLKP
COMPANIES
2
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001299403DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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