Lorson John W - Oct 25, 2021 Form 4 Insider Report for ARCH RESOURCES, INC. (ARCH)

Role: VP & Chief Acctg Officer
Signature: /s/ Rosemary L. Klein, Attorney-in-Fact
Stock symbol: ARCH
Transactions as of: Oct 25, 2021
Transactions value $: -$28,291
Form type: 4
Date filed: 10/27/2021, 01:09 PM
Next filing: Feb 14, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ARCH	Common Stock	Options Exercise		+650	+38.46%		2.34K	Oct 25, 2021	Direct	F1
transaction	ARCH	Common Stock	Tax liability	-$18.8K	-194	-8.29%	$97.10	2.15K	Oct 25, 2021	Direct	F2
transaction	ARCH	Common Stock	Sale	-$9.45K	-98	-4.57%	$96.47	2.05K	Oct 25, 2021	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ARCH	Restricted Stock Units	Options Exercise	$0	-650	-100%	$0.00^*	0	Oct 25, 2021	Class A Common Stock	650		Direct	F1, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the "Company").
F2	These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations.
F3	The sale of shares was to satisfy the reporting person's tax withholding obligations above the statutory withholding rate and was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2021.
F4	The restricted stock units are fully vested.