| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
President Safety & Infrastructure | President Mech. Prods. & Solutions
1 company
Mark F. Lamps is President Safety & Infrastructure at ATKR. Mark F. Lamps's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider.
Historically, Mark F. Lamps's trades have earned a middling insider score of 57/100 across 17 rated trades. Over a 12-month horizon, 40.0% of those trades were profitable, with an average 12-month return of +1.6%.
Mark F. Lamps has 52 Form 4 filings on record from March 2019 to October 2026, all as President Safety & Infrastructure at Atkore (ATKR), 2019–2026.
The 87 reported transactions were 26 tax withholdings, 25 open-market sales, 24 stock awards and 5 dispositions back to the company, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 24 sales worth about $2.5M.
The largest open-market sale was 5,008 shares of ATKR at an average $130.66 on November 22, 2023, about $654K. Twelve months later ATKR was down 35%.
10 of the 11 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other was not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell | 300 | $93.75 | $28,125.00 | -0.8% | - | - | |
| Feb 17, 2026 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 1,000 | $65.78 | $65,780.00 | -2.7% | +12.1% | - | |
| Nov 17, 2025 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 1,000 | $64.75 | $64,750.00 | -3.2% | +2.8% | - | |
| Aug 15, 2025 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 1,000 | $59.37 | $59,370.00 | -3.0% | +12.0% | +62.1% | |
| May 9, 2025 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 1,000 | $69.16 | $69,160.00 | -3.0% | -19.1% | +9.3% | |
| Feb 10, 2025 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 500 | $65.00 | $32,500.00 | -1.5% | +1.2% | -3.6% | |
| Nov 11, 2024 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 500 | $96.55 | $48,275.00 | -1.8% | -27.5% | -32.0% | |
| Aug 12, 2024 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 500 | $95.47 | $47,735.00 | -1.7% | +1.2% | -39.8% | |
| May 14, 2024 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 500 | $157.67 | $78,835.00 | -1.7% | -39.2% | -55.4% | |
| Nov 22, 2023 | ATKR Atkore Inc. | President Safety & Infrastructure | Sell10b5-1 | 5,008 | $130.66 | $654,350.79 | -14.7% | +9.0% | -34.9% |