John A. Ziegler - Dec 1, 2023 Form 4/A - Amendment Insider Report for ARCH RESOURCES, INC. (ARCH)

Role: Sr. VP & Chief Admin Officer
Signature: /s/ Rosemary L. Klein, Attorney-in-fact
Stock symbol: ARCH
Transactions as of: Dec 1, 2023
Transactions value $: -$850,150
Form type: 4/A - Amendment
Date filed: 12/1/2023, 01:50 PM
Date Of Original Report: Dec 1, 2023
Previous filing: Oct 16, 2023
Next filing: Feb 13, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ARCH	Common Stock	Sale	-$850K	-5K	-18.02%	$170.03	22.8K	Dec 1, 2023	Direct	F1

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

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 9, 2022.

Remarks:

This amendment is being filed to correct the price in Column 4 of Table I and restate Footnote (1) originally filed by the reporting person on December 1, 2023.