Matthew C. Giljum

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
14 Jan 25	ARCH Arch Resources	Class A Common Stock	Sale back to company	Dispose D	No	No	0	40,005	0.00	0
14 Jan 25	ARCH Arch Resources	RSU Class A Common Stock	Sale back to company	Dispose D	No	No	0	26,054	0.00	0
14 Oct 24	ARCH Arch Resources	Common Stock	Sell	Dispose S	No	Yes	144.75	169	24.46 k	40,005
13 Oct 24	ARCH Arch Resources	Common Stock	Payment of exercise	Dispose F	No	No	145.86	744	108.52 k	40,174
13 Oct 24	ARCH Arch Resources	Common Stock	Option exercise	Acquire M	No	No	0	1,683	0.00	40,918
13 Oct 24	ARCH Arch Resources	RSU Class A Common Stock	Option exercise	Dispose M	No	No	0	1,683	0.00	1,683
26 Feb 24	ARCH Arch Resources	Common Stock	Sell	Dispose S	No	Yes	169.99	900	152.99 k	39,235
26 Feb 24	ARCH Arch Resources	Common Stock	Sell	Dispose S	No	Yes	169.28	1,380	233.61 k	40,135
26 Feb 24	ARCH Arch Resources	Common Stock	Sell	Dispose S	No	Yes	167.55	100	16.76 k	41,515
26 Feb 24	ARCH Arch Resources	Common Stock	Payment of exercise	Dispose F	No	No	169.54	10,169	1.72 mm	41,615

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