Stephen E. Macadam

Insider · Director · ATMU

Stephen E. Macadam files insider transactions with the SEC as a director of Atmus Filtration Technologies (ATMU). We hold 1 disclosed purchase or sale filed since 5 November 2008, 1 of them in the last 90 days.

Files forATMU
Disclosed buys and sells1 in all, 1 in the last 90 days
Last disclosure13 August 2026

Positions held

8 posts we hold — a term names its own dates; a run of filings only says when they filed

Filed 26 May 2023 — 12 August 2026Director · Atmus Filtration Technologies (ATMU)9 Form 4 lines · source: SEC Form 4
Filed 10 November 2023 — 12 June 2026Director · Sleep Number (SNBR)11 Form 4 lines · source: SEC Form 4
Filed 14 February 2019 — 8 May 2026Director · Louisiana-Pacific (LPX)24 Form 4 lines · source: SEC Form 4
Filed 29 April 2020 — 30 November 2023Director · Veritiv (VRTV)14 Form 4 lines · source: SEC Form 4
Filed 28 September 2016 — 25 January 2023Director · Valvoline (VVV)23 Form 4 lines · source: SEC Form 4
Filed 4 November 2008 — 13 February 2020President and CEO · Enpro Industries (NPO)125 Form 4 lines · source: SEC Form 4
Filed 10 May 2013 — 21 May 2013Director · Axiall Corp/de/ (AXLL)2 Form 4 lines · source: SEC Form 4
Filed 12 January 2010 — 22 May 2012Director · Georgia Gulf Corp /de/ (GGC)4 Form 4 lines · source: SEC Form 4

Everything they disclosed

120 entries, newest first — one per disclosure report, one per Form 4 line

▲ bought on the open market 2,000 shares of Atmus Filtration TechnologiesSEC Form 413 August 2026Common Stock · traded 12 August 2026 · filed 13 August 2026
returned to the issuer 97,272 shares of Sleep NumberSEC Form 415 June 2026Common Stock · traded 12 June 2026 · filed 15 June 2026
was granted 15,067 shares of Sleep NumberSEC Form 421 May 2026Common Stock · traded 21 May 2026 · filed 21 May 2026
was granted 2,619 shares of Atmus Filtration TechnologiesSEC Form 413 May 2026Common Stock · traded 12 May 2026 · filed 13 May 2026
was granted 1,863 shares of Louisiana-PacificSEC Form 411 May 2026Common Stock · traded 8 May 2026 · filed 11 May 2026
▲ bought on the open market 3,200 shares of Louisiana-PacificSEC Form 412 November 2025Common Stock · traded 7 November 2025 · filed 12 November 2025
was granted 9,776 shares of Sleep NumberSEC Form 430 May 2025Common Stock · traded 28 May 2025 · filed 30 May 2025
was granted 3,886 shares of Atmus Filtration TechnologiesSEC Form 421 May 2025Common Stock · traded 20 May 2025 · filed 21 May 2025
was granted 1,499 shares of Louisiana-PacificSEC Form 419 May 2025Common Stock · traded 15 May 2025 · filed 19 May 2025
was granted 1,332 shares of Sleep Number (a derivative holding)SEC Form 412 December 2024Phantom Stock · traded 10 December 2024 · filed 12 December 2024
was granted 1,340 shares of Sleep Number (a derivative holding)SEC Form 419 September 2024Phantom Stock · traded 18 September 2024 · filed 19 September 2024
▲ bought on the open market 43,000 shares of Sleep NumberSEC Form 48 August 2024Common Stock · traded 6 August 2024 · filed 8 August 2024
▲ bought on the open market 8,250 shares of Atmus Filtration TechnologiesSEC Form 48 August 2024Common Stock · traded 7 August 2024 · filed 8 August 2024
was granted 1,712 shares of Sleep Number (a derivative holding)SEC Form 423 May 2024Phantom Stock · traded 21 May 2024 · filed 23 May 2024
was granted 5,457 shares of Sleep NumberSEC Form 423 May 2024Common Stock · traded 21 May 2024 · filed 23 May 2024
was granted 1,549 shares of Louisiana-PacificSEC Form 420 May 2024Common Stock · traded 17 May 2024 · filed 20 May 2024
was granted 4,565 shares of Atmus Filtration TechnologiesSEC Form 416 May 2024Common Stock · traded 14 May 2024 · filed 16 May 2024
was granted 1,695 shares of Sleep Number (a derivative holding)SEC Form 414 March 2024Phantom Stock · traded 13 March 2024 · filed 14 March 2024
was granted 4,272 shares of Sleep NumberSEC Form 415 December 2023Common Stock · traded 14 December 2023 · filed 15 December 2023
returned to the issuer 19,019 shares of Veritiv (a derivative holding)SEC Form 430 November 2023Phantom Stock · traded 30 November 2023 · filed 30 November 2023
returned to the issuer 6,600 shares of VeritivSEC Form 430 November 2023Common Stock · traded 30 November 2023 · filed 30 November 2023
▲ bought on the open market 50,000 shares of Sleep NumberSEC Form 414 November 2023Common Stock · traded 10 November 2023 · filed 14 November 2023
▲ bought on the open market 5,200 shares of Atmus Filtration TechnologiesSEC Form 49 November 2023Common Stock · traded 9 November 2023 · filed 9 November 2023
gave away 1,500 shares of VeritivSEC Form 47 November 2023Common Stock · traded 6 November 2023 · filed 7 November 2023
was granted 4,624 shares of Atmus Filtration TechnologiesSEC Form 415 August 2023Common Stock · traded 14 August 2023 · filed 15 August 2023
was granted 109 shares of Veritiv (a derivative holding)SEC Form 49 June 2023Phantom Stock · traded 5 June 2023 · filed 9 June 2023
was granted 4,844 shares of Atmus Filtration TechnologiesSEC Form 46 June 2023Common Stock · traded 2 June 2023 · filed 6 June 2023
▲ bought on the open market 4,600 shares of Atmus Filtration TechnologiesSEC Form 426 May 2023Common Stock · traded 26 May 2023 · filed 26 May 2023
was granted 2,182 shares of Louisiana-PacificSEC Form 49 May 2023Common Stock · traded 5 May 2023 · filed 9 May 2023
was granted 1,221 shares of Veritiv (a derivative holding)SEC Form 44 May 2023Phantom Stock · traded 3 May 2023 · filed 4 May 2023
was granted 82 shares of Veritiv (a derivative holding)SEC Form 43 April 2023Phantom Stock · traded 31 March 2023 · filed 3 April 2023
exercised options over 3,847 shares of Valvoline (a derivative holding)SEC Form 426 January 2023FY 2022 Restricted Stock Units · traded 25 January 2023 · filed 26 January 2023
exercised options over 3,847 shares of ValvolineSEC Form 426 January 2023Common Stock · traded 25 January 2023 · filed 26 January 2023
was granted 84 shares of Veritiv (a derivative holding)SEC Form 421 December 2022Phantom Stock · traded 19 December 2022 · filed 21 December 2022
was granted 41 shares of Louisiana-PacificSEC Form 45 December 2022Common Stock · traded 1 December 2022 · filed 5 December 2022
was granted 150 shares of Louisiana-PacificSEC Form 412 August 2022Common Stock · traded 11 August 2022 · filed 12 August 2022
was granted 1,733 shares of Louisiana-PacificSEC Form 46 May 2022Common Stock · traded 4 May 2022 · filed 6 May 2022
was granted 933 shares of Veritiv (a derivative holding)SEC Form 46 May 2022Phantom Stock · traded 4 May 2022 · filed 6 May 2022
▲ bought on the open market 1,500 shares of VeritivSEC Form 423 March 2022Common Stock · traded 22 March 2022 · filed 23 March 2022
▲ bought on the open market 100 shares of VeritivSEC Form 423 March 2022Common Stock · traded 22 March 2022 · filed 23 March 2022
was granted 3,787 shares of Valvoline (a derivative holding)SEC Form 426 January 2022FY 2022 Restricted Stock Units · traded 25 January 2022 · filed 26 January 2022
▲ bought on the open market 1,500 shares of VeritivSEC Form 41 December 2021Common Stock · traded 30 November 2021 · filed 1 December 2021
▲ bought on the open market 75 shares of Louisiana-PacificSEC Form 49 August 2021Common Stock · traded 9 August 2021 · filed 9 August 2021
▲ bought on the open market 1,775 shares of Louisiana-PacificSEC Form 49 August 2021Common Stock · traded 9 August 2021 · filed 9 August 2021
exercised options over 5,357 shares of Louisiana-PacificSEC Form 42 June 2021Common Stock · traded 29 May 2021 · filed 2 June 2021
exercised options over 5,295 shares of Louisiana-Pacific (a derivative holding)SEC Form 42 June 2021Restricted Stock Units · traded 29 May 2021 · filed 2 June 2021
was granted 1,719 shares of Louisiana-PacificSEC Form 410 May 2021Common Stock · traded 7 May 2021 · filed 10 May 2021
was granted 3,319 shares of Veritiv (a derivative holding)SEC Form 429 April 2021Phantom Stock · traded 28 April 2021 · filed 29 April 2021
▲ bought on the open market 5,000 shares of VeritivSEC Form 423 March 2021Common Stock · traded 23 March 2021 · filed 23 March 2021
was granted 4,586 shares of Valvoline (a derivative holding)SEC Form 428 January 2021Units · traded 28 January 2021 · filed 28 January 2021
▲ bought on the open market 6,400 shares of Louisiana-PacificSEC Form 49 November 2020Common Stock · traded 6 November 2020 · filed 9 November 2020
was granted 5,295 shares of Louisiana-Pacific (a derivative holding)SEC Form 41 June 2020Restricted Stock Unit · traded 29 May 2020 · filed 1 June 2020
exercised options over 5,318 shares of Louisiana-PacificSEC Form 420 May 2020Common Stock · traded 17 May 2020 · filed 20 May 2020
exercised options over 5,207 shares of Louisiana-Pacific (a derivative holding)SEC Form 419 May 2020Restricted Stock Units · traded 17 May 2020 · filed 19 May 2020
exercised options over 5,318 shares of Louisiana-PacificSEC Form 419 May 2020Common Stock · traded 17 May 2020 · filed 19 May 2020
▲ bought on the open market 5,000 shares of Louisiana-PacificSEC Form 48 May 2020Common Stock · traded 7 May 2020 · filed 8 May 2020
was granted 13,270 shares of Veritiv (a derivative holding)SEC Form 430 April 2020Phantom Stock · traded 29 April 2020 · filed 30 April 2020
▲ bought on the open market 3,600 shares of Louisiana-PacificSEC Form 42 March 2020Common Stock · traded 28 February 2020 · filed 2 March 2020
exercised options over 1,136 shares of Louisiana-Pacific (a derivative holding)SEC Form 418 February 2020Restricted Stock Units · traded 14 February 2020 · filed 18 February 2020
exercised options over 1,154 shares of Louisiana-PacificSEC Form 418 February 2020Common Stock · traded 14 February 2020 · filed 18 February 2020
exercised options over 13,253 shares of Enpro IndustriesSEC Form 418 February 2020Common Stock · traded 13 February 2020 · filed 18 February 2020
exercised options over 1,327 shares of Enpro IndustriesSEC Form 418 February 2020Common Stock · traded 13 February 2020 · filed 18 February 2020
had shares withheld for tax on 3,929 shares of Enpro IndustriesSEC Form 418 February 2020Common Stock · traded 13 February 2020 · filed 18 February 2020
exercised options over 13,253 shares of Enpro Industries (a derivative holding)SEC Form 418 February 2020Restricted Stock Units · traded 13 February 2020 · filed 18 February 2020
exercised options over 1,327 shares of Enpro Industries (a derivative holding)SEC Form 418 February 2020Restricted Stock Units (MSPP) · traded 13 February 2020 · filed 18 February 2020
was granted 5,224 shares of Valvoline (a derivative holding)SEC Form 43 February 2020Units · traded 30 January 2020 · filed 3 February 2020
was granted 1,168 shares of Valvoline (a derivative holding)SEC Form 42 January 2020Units · traded 31 December 2019 · filed 2 January 2020
was granted 1,135 shares of Valvoline (a derivative holding)SEC Form 41 October 2019Units · traded 30 September 2019 · filed 1 October 2019
▼ sold on the open market 11,261 shares of Enpro IndustriesSEC Form 49 August 2019Common Stock · traded 8 August 2019 · filed 9 August 2019
was granted 1,280 shares of Valvoline (a derivative holding)SEC Form 41 July 2019Units · traded 28 June 2019 · filed 1 July 2019
was granted 5,207 shares of Louisiana-Pacific (a derivative holding)SEC Form 420 May 2019Restricted stock units · traded 17 May 2019 · filed 20 May 2019
was granted 1,347 shares of Valvoline (a derivative holding)SEC Form 48 April 2019Units · traded 29 March 2019 · filed 8 April 2019
exercised options over 15,787 shares of Enpro Industries (a derivative holding)SEC Form 426 February 2019Restricted Stock Units · traded 23 February 2019 · filed 26 February 2019
exercised options over 1,692 shares of Enpro Industries (a derivative holding)SEC Form 426 February 2019Restricted Stock Units (MSPP) · traded 23 February 2019 · filed 26 February 2019
exercised options over 15,787 shares of Enpro IndustriesSEC Form 426 February 2019Common Stock · traded 23 February 2019 · filed 26 February 2019
exercised options over 1,692 shares of Enpro IndustriesSEC Form 426 February 2019Common Stock · traded 23 February 2019 · filed 26 February 2019
had shares withheld for tax on 7,057 shares of Enpro IndustriesSEC Form 426 February 2019Common Stock · traded 23 February 2019 · filed 26 February 2019
gave away 2,000 shares of Enpro IndustriesSEC Form 420 February 2019Common Stock · traded 19 February 2019 · filed 20 February 2019
was granted 1,136 shares of Louisiana-Pacific (a derivative holding)SEC Form 415 February 2019Restricted stock units · traded 14 February 2019 · filed 15 February 2019
was granted 13,797 shares of Enpro Industries (a derivative holding)SEC Form 414 February 2019Restricted Stock Units · traded 12 February 2019 · filed 14 February 2019
was granted 22,550 shares of Enpro IndustriesSEC Form 414 February 2019Common Stock · traded 12 February 2019 · filed 14 February 2019
had shares withheld for tax on 9,270 shares of Enpro IndustriesSEC Form 414 February 2019Common Stock · traded 12 February 2019 · filed 14 February 2019
was granted 4,976 shares of Valvoline (a derivative holding)SEC Form 41 February 2019Units · traded 31 January 2019 · filed 1 February 2019
was granted 11,141 shares of Enpro Industries (a derivative holding)SEC Form 418 January 2019Restricted Stock Units · traded 12 February 2018 · filed 18 January 2019
was granted 1,292 shares of Valvoline (a derivative holding)SEC Form 42 January 2019Units · traded 31 December 2018 · filed 2 January 2019
was granted 1,162 shares of Valvoline (a derivative holding)SEC Form 41 October 2018Units · traded 28 September 2018 · filed 1 October 2018
was granted 1,159 shares of Valvoline (a derivative holding)SEC Form 42 July 2018Units · traded 29 June 2018 · filed 2 July 2018
was granted 1,130 shares of Valvoline (a derivative holding)SEC Form 42 April 2018Units · traded 29 March 2018 · filed 2 April 2018
exercised options over 13,164 shares of Enpro Industries (a derivative holding)SEC Form 420 February 2018Restricted Stock Units · traded 18 February 2018 · filed 20 February 2018
exercised options over 1,409 shares of Enpro Industries (a derivative holding)SEC Form 420 February 2018Restricted Stock Units (MSPP) · traded 18 February 2018 · filed 20 February 2018
exercised options over 13,164 shares of Enpro IndustriesSEC Form 420 February 2018Common Stock · traded 18 February 2018 · filed 20 February 2018
exercised options over 1,409 shares of Enpro IndustriesSEC Form 420 February 2018Common Stock · traded 18 February 2018 · filed 20 February 2018
had shares withheld for tax on 58 shares of Enpro IndustriesSEC Form 420 February 2018Common Stock · traded 18 February 2018 · filed 20 February 2018
had shares withheld for tax on 5,918 shares of Enpro IndustriesSEC Form 420 February 2018Common Stock · traded 18 February 2018 · filed 20 February 2018
was granted 22,017 shares of Enpro IndustriesSEC Form 413 February 2018Common Stock · traded 12 February 2018 · filed 13 February 2018
had shares withheld for tax on 8,114 shares of Enpro IndustriesSEC Form 413 February 2018Common Stock · traded 12 February 2018 · filed 13 February 2018
was granted 8,918 shares of Enpro Industries (a derivative holding)SEC Form 413 February 2018Restricted Stock Units · traded 12 February 2018 · filed 13 February 2018
was granted 4,463 shares of Valvoline (a derivative holding)SEC Form 42 February 2018Units · traded 31 January 2018 · filed 2 February 2018
▼ sold on the open market 25,000 shares of Enpro IndustriesSEC Form 47 November 2017Common Stock · traded 6 November 2017 · filed 7 November 2017
exercised options over 26,318 shares of Enpro IndustriesSEC Form 48 August 2017Common Stock · traded 7 August 2017 · filed 8 August 2017
▼ sold on the open market 26,318 shares of Enpro IndustriesSEC Form 48 August 2017Common Stock · traded 7 August 2017 · filed 8 August 2017
exercised options over 26,318 shares of Enpro Industries (a derivative holding)SEC Form 48 August 2017Stock Option · traded 7 August 2017 · filed 8 August 2017
was granted 14 shares of Valvoline (a derivative holding)SEC Form 419 June 2017Unit · traded 15 June 2017 · filed 19 June 2017
exercised options over 15,000 shares of Enpro IndustriesSEC Form 48 May 2017Common Stock · traded 4 May 2017 · filed 8 May 2017
▼ sold on the open market 15,000 shares of Enpro IndustriesSEC Form 48 May 2017Common Stock · traded 4 May 2017 · filed 8 May 2017
exercised options over 15,000 shares of Enpro Industries (a derivative holding)SEC Form 48 May 2017Stock Option · traded 4 May 2017 · filed 8 May 2017
was granted 1,018 shares of ValvolineSEC Form 43 April 2017Common Stock · traded 31 March 2017 · filed 3 April 2017
was granted 14 shares of Valvoline (a derivative holding)SEC Form 416 March 2017Restricted Stock Units · traded 15 March 2017 · filed 16 March 2017
▼ sold on the open market 10,000 shares of Enpro IndustriesSEC Form 42 March 2017Common Stock · traded 1 March 2017 · filed 2 March 2017
exercised options over 20,000 shares of Enpro IndustriesSEC Form 423 February 2017Common Stock · traded 21 February 2017 · filed 23 February 2017
▼ sold on the open market 17,154 shares of Enpro IndustriesSEC Form 423 February 2017Common Stock · traded 21 February 2017 · filed 23 February 2017
▼ sold on the open market 2,846 shares of Enpro IndustriesSEC Form 423 February 2017Common Stock · traded 22 February 2017 · filed 23 February 2017
exercised options over 20,000 shares of Enpro Industries (a derivative holding)SEC Form 423 February 2017Stock Option · traded 21 February 2017 · filed 23 February 2017
was granted 4 shares of Valvoline (a derivative holding)SEC Form 421 February 2017Restricted Stock Units · traded 20 December 2016 · filed 21 February 2017
was granted 5,310 shares of Enpro Industries (a derivative holding)SEC Form 415 February 2017Phantom Stock (MSPP) · traded 13 February 2017 · filed 15 February 2017
was granted 13,253 shares of Enpro Industries (a derivative holding)SEC Form 415 February 2017Restricted Stock Units · traded 13 February 2017 · filed 15 February 2017
was granted 1,327 shares of Enpro Industries (a derivative holding)SEC Form 415 February 2017Restricted Stock Units (MSPP) · traded 13 February 2017 · filed 15 February 2017
exercised options over 23,622 shares of Enpro IndustriesSEC Form 47 February 2017Common Stock · traded 5 February 2017 · filed 7 February 2017
exercised options over 1,122 shares of Enpro IndustriesSEC Form 47 February 2017Common Stock · traded 5 February 2017 · filed 7 February 2017
had shares withheld for tax on 49 shares of Enpro IndustriesSEC Form 47 February 2017Common Stock · traded 5 February 2017 · filed 7 February 2017

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.