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Signature
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/s/ Daniel S. Kelly, Attorney-in-Fact for Mark F. Lamps
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Issuer symbol
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ATKR
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Transactions as of
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13 Nov 2025
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Net transactions value
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-$103,907
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Form type
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4
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Filing time
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17 Nov 2025, 17:27:24 UTC
Reporting Owners (1)
| Name |
Relationship |
Address |
Signature |
Signature date |
CIK |
| Lamps Mark F. |
Pres. Safety & Infrastructure |
16100 S. LATHROP AVENUE, HARVEY |
/s/ Daniel S. Kelly, Attorney-in-Fact for Mark F. Lamps |
17 Nov 2025 |
0001769052 |
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
ATKR |
Common Stock |
Tax liability |
$39,157 |
-604 |
-1.9% |
$64.83 |
30,923 |
13 Nov 2025 |
Direct |
F1, F2 |
| transaction |
ATKR |
Common Stock |
Sale |
$64,750 |
-1,000 |
-3.2% |
$64.75 |
29,923 |
17 Nov 2025 |
Direct |
F2, F3 |
* 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: