Follow the people · Insider
Mark F. Lamps
Mark F. Lamps files insider transactions with the SEC as a pres. safety & infrastructure of Atkore International Group (ATKR). We hold 2 disclosed purchases and sales filed since 5 March 2019, 1 of them in the last 90 days.
- Files forATKR
- Disclosed buys and sells2 in all, 1 in the last 90 days
- Last disclosure31 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 1 March 2019 — 28 August 2026Pres. Safety & Infrastructure · Atkore International Group (ATKR)88 Form 4 lines · source: SEC Form 4
Everything they disclosed
88 entries, newest first — one per disclosure report, one per Form 4 line- was granted 47 shares of AtkoreSEC Form 431 August 2026Common Stock · traded 28 August 2026 · filed 31 August 2026
- ▼ sold on the open market 300 shares of AtkoreSEC Form 410 August 2026Common Stock · traded 10 August 2026 · filed 10 August 2026
- was granted 53 shares of AtkoreSEC Form 42 June 2026Common Stock · traded 29 May 2026 · filed 2 June 2026
- was granted 68 shares of AtkoreSEC Form 43 March 2026Common Stock · traded 27 February 2026 · filed 3 March 2026
- was granted 68 shares of AtkoreSEC Form 43 March 2026Common Stock · traded 27 February 2026 · filed 3 March 2026
- ▼ sold on the open market 1,000 shares of AtkoreSEC Form 417 February 2026Common Stock · traded 17 February 2026 · filed 17 February 2026
- ▼ sold on the open market 1,000 shares of AtkoreSEC Form 417 February 2026Common Stock · traded 17 February 2026 · filed 17 February 2026
- was granted 68 shares of AtkoreSEC Form 419 December 2025Common Stock · traded 17 December 2025 · filed 19 December 2025
- was granted 8,043 shares of AtkoreSEC Form 419 November 2025Common Stock · traded 17 November 2025 · filed 19 November 2025
- had shares withheld for tax on 1,053 shares of AtkoreSEC Form 419 November 2025Common Stock · traded 18 November 2025 · filed 19 November 2025
- had shares withheld for tax on 604 shares of AtkoreSEC Form 417 November 2025Common Stock · traded 13 November 2025 · filed 17 November 2025
- ▼ sold on the open market 1,000 shares of AtkoreSEC Form 417 November 2025Common Stock · traded 17 November 2025 · filed 17 November 2025
- had shares withheld for tax on 397 shares of AtkoreSEC Form 413 November 2025Common Stock · traded 11 November 2025 · filed 13 November 2025
- was granted 51 shares of AtkoreSEC Form 43 September 2025Common Stock · traded 29 August 2025 · filed 3 September 2025
- ▼ sold on the open market 1,000 shares of AtkoreSEC Form 418 August 2025Common Stock · traded 15 August 2025 · filed 18 August 2025
- was granted 45 shares of AtkoreSEC Form 430 May 2025Common Stock · traded 28 May 2025 · filed 30 May 2025
- ▼ sold on the open market 1,000 shares of AtkoreSEC Form 49 May 2025Common Stock · traded 9 May 2025 · filed 9 May 2025
- was granted 32 shares of AtkoreSEC Form 43 March 2025Common Stock · traded 16 December 2024 · filed 3 March 2025
- was granted 47 shares of AtkoreSEC Form 43 March 2025Common Stock · traded 28 February 2025 · filed 3 March 2025
- ▼ sold on the open market 500 shares of AtkoreSEC Form 410 February 2025Common Stock · traded 10 February 2025 · filed 10 February 2025
- was granted 11 shares of AtkoreSEC Form 417 December 2024Common Stock · traded 16 December 2024 · filed 17 December 2024
- was granted 5,914 shares of AtkoreSEC Form 420 November 2024Common Stock · traded 18 November 2024 · filed 20 November 2024
- had shares withheld for tax on 291 shares of AtkoreSEC Form 419 November 2024Common Stock · traded 16 November 2024 · filed 19 November 2024
- was granted 4,165 shares of AtkoreSEC Form 419 November 2024Common Stock · traded 16 November 2024 · filed 19 November 2024
- had shares withheld for tax on 2,181 shares of AtkoreSEC Form 419 November 2024Common Stock · traded 16 November 2024 · filed 19 November 2024
- had shares withheld for tax on 593 shares of AtkoreSEC Form 415 November 2024Common Stock · traded 13 November 2024 · filed 15 November 2024
- was granted 11 shares of AtkoreSEC Form 413 November 2024Common Stock · traded 15 March 2024 · filed 13 November 2024
- was granted 11 shares of AtkoreSEC Form 413 November 2024Common Stock · traded 31 May 2024 · filed 13 November 2024
- was granted 18 shares of AtkoreSEC Form 413 November 2024Common Stock · traded 30 August 2024 · filed 13 November 2024
- ▼ sold on the open market 500 shares of AtkoreSEC Form 413 November 2024Common Stock · traded 11 November 2024 · filed 13 November 2024
- had shares withheld for tax on 390 shares of AtkoreSEC Form 413 November 2024Common Stock · traded 11 November 2024 · filed 13 November 2024
- ▼ sold on the open market 500 shares of AtkoreSEC Form 412 August 2024Common Stock · traded 12 August 2024 · filed 12 August 2024
- ▼ sold on the open market 500 shares of AtkoreSEC Form 414 May 2024Common Stock · traded 14 May 2024 · filed 14 May 2024
- ▼ sold on the open market 5,008 shares of AtkoreSEC Form 422 November 2023Common Stock · traded 22 November 2023 · filed 22 November 2023
- had shares withheld for tax on 905 shares of AtkoreSEC Form 421 November 2023Common Stock · traded 17 November 2023 · filed 21 November 2023
- was granted 18,118 shares of AtkoreSEC Form 421 November 2023Common Stock · traded 17 November 2023 · filed 21 November 2023
- had shares withheld for tax on 9,014 shares of AtkoreSEC Form 421 November 2023Common Stock · traded 17 November 2023 · filed 21 November 2023
- had shares withheld for tax on 275 shares of AtkoreSEC Form 420 November 2023Common Stock · traded 16 November 2023 · filed 20 November 2023
- ▼ sold on the open market 138 shares of AtkoreSEC Form 420 November 2023Common Stock · traded 20 November 2023 · filed 20 November 2023
- had shares withheld for tax on 367 shares of AtkoreSEC Form 414 November 2023Common Stock · traded 11 November 2023 · filed 14 November 2023
- was granted 3,370 shares of AtkoreSEC Form 414 November 2023Common Stock · traded 13 November 2023 · filed 14 November 2023
- exercised options over 2,480 shares of Atkore (a derivative holding)SEC Form 47 February 2023Stock Options (right to buy) · traded 3 February 2023 · filed 7 February 2023
- exercised options over 2,480 shares of AtkoreSEC Form 47 February 2023Common Stock · traded 3 February 2023 · filed 7 February 2023
- ▼ sold on the open market 2,480 shares of AtkoreSEC Form 47 February 2023Common Stock · traded 3 February 2023 · filed 7 February 2023
- had shares withheld for tax on 586 shares of AtkoreSEC Form 423 November 2022Common Stock · traded 21 November 2022 · filed 23 November 2022
- was granted 10,953 shares of AtkoreSEC Form 423 November 2022Common Stock · traded 21 November 2022 · filed 23 November 2022
- had shares withheld for tax on 5,735 shares of AtkoreSEC Form 423 November 2022Common Stock · traded 21 November 2022 · filed 23 November 2022
- ▼ sold on the open market 433 shares of AtkoreSEC Form 423 November 2022Common Stock · traded 22 November 2022 · filed 23 November 2022
- ▼ sold on the open market 2,874 shares of AtkoreSEC Form 423 November 2022Common Stock · traded 23 November 2022 · filed 23 November 2022
- had shares withheld for tax on 952 shares of AtkoreSEC Form 421 November 2022Common Stock · traded 17 November 2022 · filed 21 November 2022
- was granted 4,162 shares of Atkore (a derivative holding)SEC Form 418 November 2022Stock Options (right to buy) · traded 11 November 2022 · filed 18 November 2022
- was granted 2,213 shares of AtkoreSEC Form 418 November 2022Common Stock · traded 11 November 2022 · filed 18 November 2022
- had shares withheld for tax on 288 shares of AtkoreSEC Form 418 November 2022Common Stock · traded 16 November 2022 · filed 18 November 2022
- ▼ sold on the open market 845 shares of AtkoreSEC Form 46 May 2022Common Stock · traded 6 May 2022 · filed 6 May 2022
- ▼ sold on the open market 638 shares of AtkoreSEC Form 47 March 2022Common Stock · traded 4 March 2022 · filed 7 March 2022
- had shares withheld for tax on 898 shares of AtkoreSEC Form 43 March 2022Common Stock · traded 1 March 2022 · filed 3 March 2022
- had shares withheld for tax on 523 shares of AtkoreSEC Form 430 November 2021Common Stock · traded 27 November 2021 · filed 30 November 2021
- was granted 13,752 shares of AtkoreSEC Form 430 November 2021Common Stock · traded 27 November 2021 · filed 30 November 2021
- had shares withheld for tax on 6,180 shares of AtkoreSEC Form 430 November 2021Common Stock · traded 27 November 2021 · filed 30 November 2021
- ▼ sold on the open market 320 shares of AtkoreSEC Form 430 November 2021Common Stock · traded 30 November 2021 · filed 30 November 2021
- ▼ sold on the open market 308 shares of AtkoreSEC Form 426 November 2021Common Stock · traded 23 November 2021 · filed 26 November 2021
- had shares withheld for tax on 503 shares of AtkoreSEC Form 423 November 2021Common Stock · traded 21 November 2021 · filed 23 November 2021
- was granted 3,505 shares of Atkore (a derivative holding)SEC Form 418 November 2021Stock Options (right to buy) · traded 16 November 2021 · filed 18 November 2021
- was granted 1,652 shares of AtkoreSEC Form 418 November 2021Common Stock · traded 16 November 2021 · filed 18 November 2021
- had shares withheld for tax on 715 shares of AtkoreSEC Form 418 November 2021Common Stock · traded 17 November 2021 · filed 18 November 2021
- had shares withheld for tax on 914 shares of AtkoreSEC Form 43 March 2021Common Stock · traded 1 March 2021 · filed 3 March 2021
- ▼ sold on the open market 630 shares of AtkoreSEC Form 43 March 2021Common Stock · traded 2 March 2021 · filed 3 March 2021
- ▼ sold on the open market 324 shares of Atkore International GroupSEC Form 46 January 2021Common Stock · traded 4 January 2021 · filed 6 January 2021
- had shares withheld for tax on 516 shares of Atkore International GroupSEC Form 41 December 2020Common Stock · traded 27 November 2020 · filed 1 December 2020
- exercised options over 2,480 shares of Atkore International Group (a derivative holding)SEC Form 430 November 2020Stock Options (right to buy) · traded 27 November 2020 · filed 30 November 2020
- exercised options over 2,480 shares of Atkore International GroupSEC Form 430 November 2020Common Stock · traded 27 November 2020 · filed 30 November 2020
- ▼ sold on the open market 2,106 shares of Atkore International GroupSEC Form 430 November 2020Common Stock · traded 27 November 2020 · filed 30 November 2020
- had shares withheld for tax on 496 shares of Atkore International GroupSEC Form 424 November 2020Common Stock · traded 21 November 2020 · filed 24 November 2020
- was granted 12,073 shares of Atkore International Group (a derivative holding)SEC Form 419 November 2020Stock Options (right to buy) · traded 17 November 2020 · filed 19 November 2020
- was granted 5,453 shares of Atkore International GroupSEC Form 419 November 2020Common Stock · traded 17 November 2020 · filed 19 November 2020
- ▼ sold on the open market 682 shares of Atkore International GroupSEC Form 46 March 2020Common Stock · traded 5 March 2020 · filed 6 March 2020
- had shares withheld for tax on 810 shares of Atkore International GroupSEC Form 42 March 2020Common Stock · traded 28 February 2020 · filed 2 March 2020
- was granted 8,897 shares of Atkore International Group (a derivative holding)SEC Form 415 January 2020Stock Options (right to buy) · traded 21 November 2019 · filed 15 January 2020
- ▼ sold on the open market 394 shares of Atkore International GroupSEC Form 410 December 2019Common Stock · traded 5 December 2019 · filed 10 December 2019
- had shares withheld for tax on 376 shares of Atkore International GroupSEC Form 42 December 2019Common Stock · traded 27 November 2019 · filed 2 December 2019
- exercised options over 2,480 shares of Atkore International Group (a derivative holding)SEC Form 429 November 2019Stock Options (right to buy) · traded 27 November 2019 · filed 29 November 2019
- exercised options over 2,480 shares of Atkore International GroupSEC Form 429 November 2019Common Stock · traded 27 November 2019 · filed 29 November 2019
- ▼ sold on the open market 2,009 shares of Atkore International GroupSEC Form 429 November 2019Common Stock · traded 27 November 2019 · filed 29 November 2019
- was granted 8,840 shares of Atkore International Group (a derivative holding)SEC Form 425 November 2019Stock Options (right to buy) · traded 21 November 2019 · filed 25 November 2019
- was granted 3,357 shares of Atkore International GroupSEC Form 425 November 2019Common Stock · traded 21 November 2019 · filed 25 November 2019
- had shares withheld for tax on 1,915 shares of Atkore International GroupSEC Form 47 November 2019Common Stock · traded 1 November 2019 · filed 7 November 2019
- ▼ sold on the open market 2,005 shares of Atkore International GroupSEC Form 47 November 2019Common Stock · traded 7 November 2019 · filed 7 November 2019
- was granted 6,522 shares of Atkore International GroupSEC Form 45 March 2019Common Stock · traded 1 March 2019 · filed 5 March 2019
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.