Ederington L. Benjamin

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
14 Aug 24	WLK Westlake	Common Stock	Payment of exercise	Dispose F	No	No	145.44	1,156	168.13 k	58,270
13 Aug 24	WLK Westlake	Common Stock	Option exercise	Acquire M	No	No	0	2,938	0.00	59,426
13 Aug 24	WLK Westlake	RSU Common Stock	Option exercise	Dispose M	No	No	0	2,938	0.00	0
20 Feb 24	WLK Westlake	Common Stock	Payment of exercise	Dispose F	No	No	137.293	411	56.43 k	56,488
20 Feb 24	WLK Westlake	Common Stock	Payment of exercise	Dispose F	No	No	135.28	1	135.28	56,899
20 Feb 24	WLK Westlake	Common Stock	Payment of exercise	Dispose F	No	No	135.27	1	135.27	56,900
20 Feb 24	WLK Westlake	Common Stock	Payment of exercise	Dispose F	No	No	129.92	4,205	546.31 k	56,901
19 Feb 24	WLK Westlake	Common Stock	Option exercise	Acquire M	No	No	0	4,388	0.00	61,106
19 Feb 24	WLK Westlake	RSU Common Stock	Option exercise	Dispose M	No	No	0	4,388	0.00	0
16 Feb 24	WLK Westlake	RSU Common Stock	Grant	Acquire A	No	No	0	3,953	0.00	3,953

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.