Kevin Hough

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
31 Jul 24	SLCA U.S. Silica	RSU	Sale back to company	Dispose D	No	No	15.5	80,978	1.26 mm	0
31 Jul 24	SLCA U.S. Silica	Common Stock	Sale back to company	Dispose D	No	No	15.5	40,642	629.95 k	0
31 Jul 24	SLCA U.S. Silica	Common Stock	Sale back to company	Dispose D	No	No	15.5	35,592	551.68 k	40,642
31 Jul 24	SLCA U.S. Silica	Employee Stock Option Common Stock	Sale back to company	Dispose D	No	No	15.5	2,456	38.07 k	0
31 Jul 24	SLCA U.S. Silica	Employee Stock Option Common Stock	Sale back to company	Dispose D	No	No	15.5	915	14.18 k	0
11 Mar 24	SLCA U.S. Silica	Common Stock	Grant	Acquire A	No	No	0	34,870	0.00	76,234
12 Feb 24	SLCA U.S. Silica	Common Stock	Payment of exercise	Dispose F	No	No	10.56	609	6.43 k	41,364
12 Feb 24	SLCA U.S. Silica	Common Stock	Payment of exercise	Dispose F	No	No	10.56	3,637	38.41 k	41,973
12 Feb 24	SLCA U.S. Silica	Common Stock	Grant	Acquire A	No	No	0	10,071	0.00	45,610
29 Dec 23	SLCA U.S. Silica	Common Stock	Payment of exercise	Dispose F	No	No	11.31	340	3.85 k	36,800

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