Lamps Mark F. - Insider Non-Derivative Transactions at Atkore Inc. (ATKR) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Dec 17, 2025, Lamps Mark F.'s relationship to Atkore Inc. (ATKR) is Officer (Pres. Safety & Infrastructure), and currently has 36,981.57 shares of Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other ATKR insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Lamps Mark F. - Insider Non-Derivative Transactions of ATKR Common Stock
Lamps Mark F. - Insider Non-Derivative Transactions at ATKR
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 18, 2025 | Acquisition -- (Common Stock) | 68.44 | 0 | 36981.57 |
| Nov 19, 2025 | F -- (Common Stock) | 1053 | 65.1 | 36913.13 |
| Nov 18, 2025 | Sell -- (Common Stock) | 1000 | 64.75 | 29923.13 |
| Nov 18, 2025 | Acquisition -- (Common Stock) | 8043 | 0 | 37966.13 |
| Nov 14, 2025 | F -- (Common Stock) | 604 | 64.83 | 30923.13 |
| Nov 12, 2025 | F -- (Common Stock) | 397 | 65.11 | 31527.13 |
| Aug 30, 2025 | Acquisition -- (Common Stock) | 51.29 | 0 | 31924.13 |
| Aug 16, 2025 | Sell -- (Common Stock) | 1000 | 59.37 | 31872.84 |
| May 29, 2025 | Acquisition -- (Common Stock) | 44.56 | 0 | 32872.84 |
| May 10, 2025 | Sell -- (Common Stock) | 1000 | 69.16 | 32828.28 |
| Mar 1, 2025 | Acquisition -- (Common Stock) | 46.59 | 0 | 33828.28 |
| Feb 11, 2025 | Sell -- (Common Stock) | 500 | 65 | 33760.43 |
| Dec 17, 2024 | Acquisition -- (Common Stock) | 10.81 | 0 | 34260.43 |
| Dec 17, 2024 | Acquisition -- (Common Stock) | 32.08 | 0 | 34281.69 |
| Nov 19, 2024 | Acquisition -- (Common Stock) | 5914 | 0 | 34249.61 |
| Nov 17, 2024 | F -- (Common Stock) | 291 | 88.97 | 26351.85 |
| Nov 17, 2024 | F -- (Common Stock) | 2181 | 88.97 | 28335.61 |
| Nov 17, 2024 | Acquisition -- (Common Stock) | 4164.76 | 0 | 30516.61 |
| Nov 14, 2024 | F -- (Common Stock) | 593 | 92.48 | 26642.85 |
| Nov 12, 2024 | F -- (Common Stock) | 390 | 95.73 | 27235.85 |
| Nov 12, 2024 | Sell -- (Common Stock) | 500 | 96.55 | 27625.85 |
| Aug 31, 2024 | Acquisition -- (Common Stock) | 18.12 | 0 | 28125.85 |
| Aug 13, 2024 | Sell -- (Common Stock) | 500 | 95.47 | 28086 |
| Jun 1, 2024 | Acquisition -- (Common Stock) | 11.16 | 0 | 28107.73 |
| May 15, 2024 | Sell -- (Common Stock) | 500 | 157.67 | 28586 |
| Mar 16, 2024 | Acquisition -- (Common Stock) | 10.56 | 0 | 28096.56 |
| Nov 23, 2023 | Sell -- (Common Stock) | 5008 | 130.66 | 29086 |
| Nov 21, 2023 | Sell -- (Common Stock) | 138 | 131.51 | 25895 |
| Nov 18, 2023 | F -- (Common Stock) | 905 | 131.41 | 24990 |
| Nov 18, 2023 | F -- (Common Stock) | 9014 | 131.41 | 34094 |
| Nov 18, 2023 | Acquisition -- (Common Stock) | 18118 | 0 | 43108 |
| Nov 17, 2023 | F -- (Common Stock) | 275 | 135.23 | 26033 |
| Nov 14, 2023 | Acquisition -- (Common Stock) | 3370 | 0 | 26308 |
| Nov 12, 2023 | F -- (Common Stock) | 367 | 132.29 | 22938 |
| Feb 4, 2023 | Sell -- (Common Stock) | 2480 | 144.75 | 23305 |
| Feb 4, 2023 | M -- (Common Stock) | 2480 | 17.9 | 25785 |
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