Deck Slone - 25 Feb 2022 Form 4/A - Amendment Insider Report for ARCH RESOURCES, INC. (ARCH)

Role: Sr. VP - Strategy & Public Pol
Signature: /s/ Rosemary L. Klein, Attorney-in-Fact
Issuer symbol: ARCH
Transactions as of: 25 Feb 2022
Net transactions value: -$576,148
Form type: 4/A - Amendment
Filing time: 17 Oct 2022, 12:21:41 UTC
Date Of Original Report: 01 Mar 2022
Previous filing: 14 Feb 2022
Next filing: 17 Oct 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ARCH	Common Stock	Options Exercise		+3,150	+30%		13,715	25 Feb 2022	Direct	F1
transaction	ARCH	Common Stock	Tax liability	$108,858	-934	-6.8%	$116.55	12,781	25 Feb 2022	Direct	F2
transaction	ARCH	Common Stock	Options Exercise		+3,284	+26%		16,065	27 Feb 2022	Direct	F1
transaction	ARCH	Common Stock	Tax liability	$146,853	-1,260	-7.8%	$116.55	14,805	27 Feb 2022	Direct	F2
transaction	ARCH	Common Stock	Sale	$320,437	-2,598	-18%	$123.34	12,207	28 Feb 2022	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	-3,150	-33%	$0.000000	6,300	25 Feb 2022	Class A Common Stock	3,150		Direct	F1, F4
transaction	ARCH	Restricted Stock Units	Options Exercise	$0	-3,284	-50%	$0.000000	3,283	27 Feb 2022	Class A Common Stock	3,284		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 sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes.
F4	The restricted stock units are fully vested.

Remarks:

This amendment is being filed to correct the number of shares and restricted stock units allocated to the reporting person's former spouse pursuant to a domestic relations order.