Insider · CIK 0001769052
Mark F. Lamps
Files at ATKR (Atkore Inc.). First filing Nov 20, 2023, latest Aug 10, 2026.
In brief
Mark F. Lamps files SEC Form 4 as officer at ATKR (Atkore Inc.). Since Nov 20, 2023, Mark F. Lamps has reported 0 open-market buys worth $0 and 9 open-market sells worth $1.0M, the latest filed on Aug 10, 2026.
A track record needs three past buys with six months of prices behind them; Mark F. Lamps has 0, so none is measured yet.
The newest scored trade: sold $28k of ATKR on Aug 10, 2026, filed Aug 10, 2026, scored 0 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 3 sells worth $159k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ATKR: Atkore Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 0Weak | Atkore Inc. | $28k 300 shares | -1% | +78% from low0% from high | |
| 3Weak | Atkore Inc. | $66k 1,000 shares | -3% | +30% from low-15% from high | |
| 3Weak | Atkore Inc. | $65k 1,000 shares | -3% | +26% from low-31% from high | |
| 2Weak | Atkore Inc. | $59k 1,000 shares | -3% | +12% from low-44% from high | |
| 3Weak | Atkore Inc. | $69k 1,000 shares | -3% | +31% from low-34% from high | |
| 1Weak | Atkore Inc. | $33k 500 shares | -1% | - | |
| 2Weak | Atkore Inc. | $48k 500 shares | -2% | - | |
| 20Weak | Atkore Inc. | $654k 5,008 shares | -15% | +16% from low-20% from high | |
| 0Weak | Atkore Inc. | $18k 138 shares | -1% | +16% from low-20% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 10, 2026 | ATKR ATKORE,INC. | 300 0.00% of outstanding | $28k | Aug 10, 2026 | none |
| Feb 17, 2026 | ATKR Atkore Inc. | 1,000 0.00% of outstanding | $67k | Feb 17, 2026 | none |
| Nov 17, 2025 | ATKR Atkore Inc. | 1,000 0.00% of outstanding | $65k | Nov 17, 2025 | none |
| Aug 15, 2025 | ATKR Atkore Inc. | 1,000 0.00% of outstanding | $59k | Aug 15, 2025 | none |
| May 9, 2025 | ATKR Atkore Inc. | 1,000 0.00% of outstanding | $69k | May 9, 2025 | $33k |
| Feb 10, 2025 | ATKR Atkore Inc. | 500 0.00% of outstanding | $33k | Feb 10, 2025 | $48k |
| Nov 12, 2024 | ATKR Atkore Inc. | 500 0.00% of outstanding | $48k | Nov 11, 2024 | $48k |
| Nov 22, 2023 | ATKR Atkore Inc. | 5,008 0.01% of outstanding | $646k | Nov 22, 2023 | $18k |
| Nov 20, 2023 | ATKR Atkore Inc. | 138 0.00% of outstanding | $18k | Nov 20, 2023 | none |
Transactions
Every row this insider has filed, 36 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 28, 2026 | ATKR Atkore Inc. | AGrant or award Common Stock | +47 | $0.00 | $0 | 35,850 | 43 d ago |
| Aug 10, 2026 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -300 | $93.75 | $28k | 35,803 | Aug 10, 2026 |
| May 29, 2026 | ATKR Atkore Inc. | AGrant or award Common Stock | +53 | $0.00 | $0 | 36,103 | Jun 2, 2026 |
| Feb 27, 2026 | ATKR Atkore Inc. | AGrant or award Common Stock | +68 | $0.00 | $0 | 36,049 | Mar 3, 2026 |
| Feb 17, 2026 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $65.78 | $66k | 35,982 | Feb 17, 2026 |
| Dec 17, 2025 | ATKR Atkore Inc. | AGrant or award Common Stock | +68 | $0.00 | $0 | 36,982 | Dec 19, 2025 |
| Nov 17, 2025 | ATKR Atkore Inc. | AGrant or award Common Stock | +8,043 | $0.00 | $0 | 37,966 | Nov 19, 2025 |
| Nov 18, 2025 | ATKR Atkore Inc. | FTax withholding Common Stock | -1,053 | $65.10 | $69k | 36,913 | Nov 19, 2025 |
| Nov 13, 2025 | ATKR Atkore Inc. | FTax withholding Common Stock10b5-1 | -604 | $64.83 | $39k | 30,923 | Nov 17, 2025 |
| Nov 17, 2025 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $64.75 | $65k | 29,923 | Nov 17, 2025 |
| Nov 11, 2025 | ATKR Atkore Inc. | FTax withholding Common Stock | -397 | $65.11 | $26k | 31,527 | Nov 13, 2025 |
| Aug 29, 2025 | ATKR Atkore Inc. | AGrant or award Common Stock | +51 | $0.00 | $0 | 31,924 | Sep 3, 2025 |
| Aug 15, 2025 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $59.37 | $59k | 31,873 | Aug 18, 2025 |
| May 28, 2025 | ATKR Atkore Inc. | AGrant or award Common Stock | +45 | $0.00 | $0 | 32,873 | May 30, 2025 |
| May 9, 2025 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $69.16 | $69k | 32,828 | May 9, 2025 |
| Feb 28, 2025 | ATKR Atkore Inc. | AGrant or award Common Stock | +47 | $0.00 | $0 | 33,828 | Mar 3, 2025 |
| Feb 10, 2025 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -500 | $65.00 | $33k | 33,760 | Feb 10, 2025 |
| Dec 16, 2024 | ATKR Atkore Inc. | AGrant or award Common Stock | +11 | $0.00 | $0 | 34,260 | Dec 17, 2024 |
| Nov 18, 2024 | ATKR Atkore Inc. | AGrant or award Common Stock | +5,914 | $0.00 | $0 | 34,250 | Nov 20, 2024 |
| Nov 16, 2024 | ATKR Atkore Inc. | FTax withholding Common Stock | -291 | $88.97 | $26k | 26,352 | Nov 19, 2024 |
| Nov 16, 2024 | ATKR Atkore Inc. | AGrant or award Common Stock | +4,165 | $0.00 | $0 | 30,517 | Nov 19, 2024 |
| Nov 16, 2024 | ATKR Atkore Inc. | FTax withholding Common Stock | -2,181 | $88.97 | $194k | 28,336 | Nov 19, 2024 |
| Nov 13, 2024 | ATKR Atkore Inc. | FTax withholding Common Stock | -593 | $92.48 | $55k | 26,643 | Nov 15, 2024 |
| Mar 15, 2024 | ATKR Atkore Inc. | AGrant or award Common Stock10b5-1 | +11 | $0.00 | $0 | 28,097 | Nov 13, 2024 |
| May 31, 2024 | ATKR Atkore Inc. | AGrant or award Common Stock10b5-1 | +11 | $0.00 | $0 | 28,108 | Nov 13, 2024 |
| Aug 30, 2024 | ATKR Atkore Inc. | AGrant or award Common Stock10b5-1 | +18 | $0.00 | $0 | 28,126 | Nov 13, 2024 |
| Nov 11, 2024 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -500 | $96.55 | $48k | 27,626 | Nov 13, 2024 |
| Nov 11, 2024 | ATKR Atkore Inc. | FTax withholding Common Stock10b5-1 | -390 | $95.73 | $37k | 27,236 | Nov 13, 2024 |
| Nov 22, 2023 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -5,008 | $130.66 | $654k | 29,086 | Nov 22, 2023 |
| Nov 17, 2023 | ATKR Atkore Inc. | FTax withholding Common Stock | -905 | $131.41 | $119k | 24,990 | Nov 21, 2023 |
| Nov 17, 2023 | ATKR Atkore Inc. | AGrant or award Common Stock | +18,118 | $0.00 | $0 | 43,108 | Nov 21, 2023 |
| Nov 17, 2023 | ATKR Atkore Inc. | FTax withholding Common Stock | -9,014 | $131.41 | $1.2M | 34,094 | Nov 21, 2023 |
| Nov 16, 2023 | ATKR Atkore Inc. | FTax withholding Common Stock10b5-1 | -275 | $135.23 | $37k | 26,033 | Nov 20, 2023 |
| Nov 20, 2023 | ATKR Atkore Inc. | SOpen-market sale Common Stock10b5-1 | -138 | $131.51 | $18k | 25,895 | Nov 20, 2023 |
| Nov 11, 2023 | ATKR Atkore Inc. | FTax withholding Common Stock | -367 | $132.29 | $49k | 22,938 | Nov 14, 2023 |
| Nov 13, 2023 | ATKR Atkore Inc. | AGrant or award Common Stock | +3,370 | $0.00 | $0 | 26,308 | Nov 14, 2023 |
Questions about Mark F. Lamps
Answered from the filings on this page, as of the latest one.
Is Mark F. Lamps buying or selling?
In the last 12 months Mark F. Lamps reported 0 open-market buys worth $0 and 3 open-market sells worth $159k on SEC Form 4; the latest was sold $28k of ATKR on Aug 10, 2026. Grants, option exercises and tax withholding are not counted.
How did Mark F. Lamps's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark F. Lamps has 0.
Where does Mark F. Lamps file Form 4?
Mark F. Lamps has filed Form 4 at ATKR (Atkore Inc.) as Pres. Safety & Infrastructure. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.