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Signature
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/s/ Rosemary L. Klein, Attorney-in-Fact
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Stock symbol
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ARCH
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Transactions as of
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Oct 13, 2023
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Transactions value $
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-$126,809
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Form type
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4
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Date filed
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10/16/2023, 06:10 PM
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
ARCH |
Common Stock |
Options Exercise |
|
+378 |
+4.73% |
|
8.38K |
Oct 13, 2023 |
Direct |
F1 |
| transaction |
ARCH |
Common Stock |
Tax liability |
-$26K |
-168 |
-2.01% |
$154.48 |
8.21K |
Oct 13, 2023 |
Direct |
F2 |
| transaction |
ARCH |
Common Stock |
Options Exercise |
|
+758 |
+9.23% |
|
8.97K |
Oct 13, 2023 |
Direct |
F1 |
| transaction |
ARCH |
Common Stock |
Tax liability |
-$51.9K |
-336 |
-3.75% |
$154.48 |
8.63K |
Oct 13, 2023 |
Direct |
F2 |
| transaction |
ARCH |
Common Stock |
Sale |
-$49K |
-316 |
-3.66% |
$154.91 |
8.32K |
Oct 16, 2023 |
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 |
-378 |
-100% |
$0.00* |
0 |
Oct 13, 2023 |
Class A Common Stock |
378 |
|
Direct |
F1, F4 |
| transaction |
ARCH |
Restricted Stock Units |
Options Exercise |
$0 |
-758 |
-33.36% |
$0.00 |
1.51K |
Oct 13, 2023 |
Class A Common Stock |
758 |
|
Direct |
F1, F4 |
* 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: