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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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-$353,603
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Form type
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4
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Date filed
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10/16/2023, 06:11 PM
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
ARCH |
Common Stock |
Options Exercise |
|
+2.53K |
+10.44% |
|
26.7K |
Oct 13, 2023 |
Direct |
F1 |
| transaction |
ARCH |
Common Stock |
Tax liability |
-$173K |
-1.12K |
-4.19% |
$154.48 |
25.6K |
Oct 13, 2023 |
Direct |
F2 |
| transaction |
ARCH |
Common Stock |
Options Exercise |
|
+1.68K |
+6.58% |
|
27.3K |
Oct 13, 2023 |
Direct |
F1 |
| transaction |
ARCH |
Common Stock |
Tax liability |
-$115K |
-747 |
-2.74% |
$154.48 |
26.5K |
Oct 13, 2023 |
Direct |
F2 |
| transaction |
ARCH |
Common Stock |
Sale |
-$65.3K |
-421 |
-1.59% |
$155.21 |
26.1K |
Oct 13, 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 |
-2.53K |
-100% |
$0.00* |
0 |
Oct 13, 2023 |
Class A Common Stock |
2.53K |
|
Direct |
F1, F4 |
| transaction |
ARCH |
Restricted Stock Units |
Options Exercise |
$0 |
-1.68K |
-33.35% |
$0.00 |
3.37K |
Oct 13, 2023 |
Class A Common Stock |
1.68K |
|
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: