Every Form 4 that Atmus Filtration Technologies Inc. (ATMU) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow ATMU and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ATMU filings page.
Atmus Filtration Technologies Inc. (ATMU) reported that Chief People Officer Renee Swan sold 3,870 shares of common stock on 2026-08-17 at an average price of $50.893 per share. According to the disclosure, these shares were sold upon vesting of the final portion of an August 14, 2023 Restricted Stock Unit award to pay Swan’s tax withholding obligation. Following this transaction, Swan directly holds 46,875 shares of Atmus common stock.
Atmus Filtration Technologies Inc. director Stephen E. Macadam purchased additional common stock. On 2026-08-12, he bought 2,000 shares of common stock in a purchase categorized as an open market or private transaction at $49.7756 per share. Following this transaction, he directly owns 40,588 shares of Atmus Filtration Technologies Inc. common stock. The transaction was not marked as being conducted under a Rule 10b5-1 trading plan.
Atmus Filtration Technologies Chief People Officer Renee Swan reported an open-market sale of 2,566 shares of common stock at $45.247 per share. According to the filing, the shares were sold upon vesting of the first half of a launch grant award to pay her tax withholding obligation. After this transaction, she directly holds 50,745 shares of Atmus Filtration Technologies common stock.
Atmus Filtration Technologies Senior Vice President Charles Masters sold 2,890 shares of common stock in an open-market transaction. The shares were sold on June 1, 2026 at an average price of $45.247 per share. A footnote explains the sale reflects shares sold upon vesting of the first half of a launch grant award to pay his tax withholding obligation, indicating this was a compensation-related, mechanistic transaction. After the sale, he continues to hold 43,579 shares of Atmus stock directly, so the sale represents a relatively small portion of his overall reported holdings.
Atmus Filtration Technologies Inc. Chief Financial Officer Jack Kienzler reported a disposition of company stock. He sold 5,132 shares of Common Stock at an average price of $45.247 per share. According to the footnote, these shares were sold upon vesting of the first half of a launch grant award to pay his tax withholding obligation. After this transaction, he directly holds 75,804 shares, indicating he retained a substantial equity position in the company following the tax-related sale.
Atmus Filtration Technologies Inc. director and Chief Executive Officer Stephanie Disher sold 25,652 shares of common stock on June 1, 2026 at $45.247 per share. A footnote explains the sale reflects shares sold upon vesting of the first half of a launch grant award to pay her tax withholding obligation. Following this transaction, she directly holds 363,024 shares.
Atmus Filtration Technologies reported that SVP and Chief Supply Chain Officer Kevin N. Carpenter received an equity award in the form of 28,509 shares of common stock. These are restricted stock units granted at no cash cost to him as part of Atmus' long-term incentive programs.
The award includes RSUs under the 2022 Omnibus Incentive Plan tied to the annual long-term incentive compensation program, which will vest in three equal tranches beginning on March 1, 2027, and a separate one-time long-term incentive award vesting in three equal tranches beginning on May 18, 2027. Each vested RSU will convert into one share of Atmus common stock, so Carpenter will own the shares only as they vest over time.
Atmus Filtration Technologies director Heath Sharp received an equity grant as part of annual board compensation. On May 12, 2026, Sharp acquired 2,619 shares linked to Restricted Share Units at no cash cost, increasing his direct holdings to 5,733 shares. The RSUs fully vest on May 12, 2027 or at the next annual meeting of stockholders, whichever occurs first.
Macadam Stephen E. reported acquisition or exercise transactions in this Form 4 filing.
Atmus Filtration Technologies Inc. director Stephen E. Macadam received a grant of 2,619 shares of Common Stock in the form of Restricted Share Units (RSUs) on May 12, 2026, as part of the 2026-2027 Annual Director Compensation program.
The RSUs carry no purchase price and will fully vest on May 12, 2027, or at the next Annual Meeting of Stockholders, whichever occurs first. Following this award, Macadam’s direct holdings total 38,588 shares of the company’s common stock.
Leipold Jane A reported acquisition or exercise transactions in this Form 4 filing.
Atmus Filtration Technologies Inc. director Jane A. Leipold received an equity award in the form of 2,619 shares of common stock on May 12, 2026. These are Restricted Share Units granted as part of the company’s 2026–2027 annual director compensation program, at no cash cost to her.
The RSUs will fully vest on May 12, 2027, or at the next annual meeting of stockholders, whichever occurs first. Following this grant, Leipold directly holds 20,538 shares of Atmus Filtration Technologies common stock, reflecting both prior holdings and this new award.
TAYLOR STUART A II reported acquisition or exercise transactions in this Form 4 filing.
Atmus Filtration Technologies Inc. director Stuart A. Taylor II received an equity grant in the form of Restricted Share Units. On May 12, 2026, he was awarded 2,619 shares of common stock as part of the 2026-2027 Annual Director Compensation program at no cash cost to him. Following this grant, he directly holds 11,697 shares of Atmus common stock. The RSUs will fully vest on May 12, 2027, or at the next Annual Meeting of Stockholders, whichever occurs first, aligning his compensation more closely with shareholder interests over the coming year.
Donoso Diego reported acquisition or exercise transactions in this Form 4 filing.
Atmus Filtration Technologies Inc. director Diego Donoso received an equity grant in the form of restricted share units. On May 12, 2026, he was awarded 2,619 shares of common stock at no purchase price as part of the 2026-2027 annual director compensation program.
These restricted share units will fully vest on May 12, 2027, or on the date of the next annual meeting of stockholders, whichever occurs first. Following this grant, Donoso directly holds 11,697 shares of Atmus Filtration Technologies common stock.
Atmus Filtration Technologies Inc. director Roy Edwin Bennett received an equity grant in the form of Restricted Share Units. On May 12, 2026, he was awarded 2,619 RSUs as part of the company’s 2026-2027 annual director compensation program at no cash cost per share.
The RSUs fully vest on May 12, 2027 or at the next Annual Meeting of Stockholders, whichever occurs first. Following this grant, Bennett’s directly held position reported in this filing totals 19,320 shares of common stock, reflecting routine, compensation-related share acquisition rather than an open-market purchase.
Atmus Filtration Technologies director Gretchen R. Haggerty increased her stake in the company’s common stock. On May 12, 2026, she received 2,619 Restricted Share Units as part of the 2026-2027 Annual Director Compensation, which vest on May 12, 2027 or at the next Annual Meeting of Stockholders, whichever occurs first. She also bought a total of 1,973.351 shares in open-market transactions at prices around $55.71–$55.74 per share, signaling additional personal investment alongside her equity compensation.
Atmus Filtration Technologies granted Chief Executive Officer Stephanie Disher 31,492 restricted stock units as part of its 2026 annual long-term incentive compensation program. These RSUs vest in three equal tranches beginning on March 1, 2027, and each vested unit will convert into one share of common stock, bringing her direct holdings to 388,676 shares.
Atmus Filtration Technologies Inc. reported that Chief Financial Officer Jack Kienzler received a grant of 5,163 restricted stock units as part of Atmus' 2026 annual long-term incentive compensation program. The award was granted at no cash cost to him.
The RSUs will vest in three equal tranches, beginning on March 1, 2027, and each vested RSU will convert into one share of Atmus common stock. Following this grant, Kienzler holds a total of 80,936 shares of common stock directly.
Heltebran Laura reported acquisition or exercise transactions in this Form 4 filing.
Atmus Filtration Technologies Inc. reported that its Chief Legal Officer and Corporate Secretary, Laura Heltebran, received a grant of 3,717 restricted stock units as part of the company’s 2026 annual long-term incentive compensation program. These RSUs were granted under the Atmus 2022 Omnibus Incentive Plan and represent equity-based compensation rather than an open-market share purchase.
The RSUs will vest in three equal tranches beginning on March 1, 2027, with each vested unit settling into one share of Atmus common stock. Following this award, Heltebran now holds 24,161 shares of common stock directly, reflecting her ongoing equity stake tied to the company’s future performance and retention incentives.
Masters Charles reported acquisition or exercise transactions in this Form 4 filing.
Atmus Filtration Technologies Inc. Senior Vice President Charles Masters received a grant of 4,130 restricted stock units as part of the company’s 2026 annual long-term incentive compensation program. Following this award, he holds 46,469 shares of common stock directly.
The RSUs were granted under the Atmus Filtration Technologies Inc. 2022 Omnibus Incentive Plan and will vest in three equal tranches beginning on March 1, 2027. Each restricted stock unit that vests will be settled in one share of Atmus common stock, aligning a portion of his compensation with future company performance.
Atmus Filtration Technologies Inc. granted Chief People Officer Renee Swan 1,962 restricted stock units (RSUs) of common stock on April 1, 2026 as part of its 2026 annual long-term incentive compensation program under the 2022 Omnibus Incentive Plan. The RSUs will vest in three equal tranches beginning on March 1, 2027, and each vested RSU will convert into one share of Atmus common stock. Following this award, Swan directly holds 53,311 shares of Atmus common stock.
Atmus Filtration Technologies Inc. Senior Vice President Charles Masters reported share dispositions tied to equity awards. On February 27, 2026, the company withheld 9,046 shares of common stock at $64.53 per share upon vesting of performance share units to cover his tax withholding obligation. On the same date, the company also withheld 2,131 shares at $64.53 per share upon vesting of restricted share units for the same purpose. After these tax-withholding dispositions, Masters held 42,339 shares of Atmus common stock directly.
Atmus Filtration Technologies’ Chief People Officer Renee Swan reported share dispositions related to tax withholding on equity awards. On the transaction date, 9,570 shares of common stock were withheld at $64.53 per share to satisfy tax obligations on vested Performance Share Units from the 2023–2025 grant cycle.
An additional 2,254 shares were withheld at $64.53 per share to cover taxes on vested Restricted Share Units from the same 2023–2025 grant cycle. After these tax-withholding dispositions, Swan directly owned 51,349 shares of Atmus Filtration Technologies common stock.
Atmus Filtration Technologies Inc. Chief Financial Officer Jack Kienzler reported two tax-related share-withholding transactions involving the company’s common stock. On February 27, 2026, a total of 20,117 shares were withheld at $64.53 per share to satisfy his tax obligations on vesting equity awards.
According to the footnotes, 16,266 shares were withheld upon vesting of Performance Share Units from the 2023–2025 grant cycle, and 3,851 shares were withheld upon vesting of Restricted Share Units from the same cycle. These are non‑open‑market, tax‑withholding dispositions, and Kienzler continues to hold a significant remaining stake directly.
Atmus Filtration Technologies director and Chief Executive Officer Stephanie Disher reported tax-related share dispositions in company common stock. On February 27, 2026, shares were withheld in two transactions, covering 66,639 and 15,854 shares at $64.53 per share to satisfy tax withholding obligations on vested performance and restricted share units from the 2023-2025 grant cycle. After these withholdings, Disher directly held 357,184 common shares, indicating the transactions were administrative tax settlements rather than open-market sales.
Atmus Filtration Technologies Chief People Officer Renee Swan acquired 18,536 shares of common stock on February 13, 2026 through a performance share award. The shares were granted at $0 per share after achievement of 2023 performance metrics under a Performance Share Unit (PSU) program.
The PSUs will cliff vest on March 1, 2026 and convert into common stock on a 1:1 basis. Following this award, Swan directly beneficially owns 63,173 shares of Atmus Filtration Technologies common stock.
Atmus Filtration Technologies Inc. reported that Senior Vice President Charles Masters acquired 21,152 shares of common stock on February 13, 2026 through a performance-based equity award. The shares were earned under a 2023 Performance Share Unit (PSU) award tied to achievement of specific performance metrics.
The PSUs cliff vest on March 1, 2026 and convert into common stock on a 1-for-1 basis. Following this award, Masters directly beneficially owns 53,516 shares of Atmus Filtration Technologies common stock.
Kienzler Jack reported acquisition or exercise transactions in a Form 4 filing for ATMU. The filing lists transactions totaling 41,094 shares. Following the reported transactions, holdings were 95,890 shares.
Atmus Filtration Technologies Inc.'s Chief Executive Officer and director, Stephanie Disher, reported an acquisition of company stock through an equity award. On February 13, 2026, she received 169,209 shares of common stock at $0 per share, described as a grant, award, or other acquisition.
These shares were earned based on performance metrics tied to a 2023 Performance Share Unit (PSU) award, which cliff vests on March 1, 2026 and converts into common stock on a 1:1 basis. Following this award, Disher directly holds 439,677 shares of Atmus common stock.
Atmus Filtration Technologies Inc. director Heath Sharp reported an equity award tied to his board service. On February 5, 2026, he acquired 614 shares of common stock at a price of $0 per share, reflecting restricted share units granted in connection with his director appointment.
After this grant, Sharp beneficially owned 3,114 common shares, held directly. The related restricted share units fully vest on February 5, 2027, meaning the award is designed to align his compensation with the company’s long‑term performance over roughly one year.
Atmus Filtration Technologies Inc. (ATMU) director Form 4 reports several small common stock trades and a later error correction. On 04/02/2025, the reporting person sold 40 shares at $37.79. They then bought 25 shares at $45 on 08/13/2025 and 15 shares at $45.81 on 09/05/2025. On 11/13/2025, 20 shares were sold at $48.84, but this sale is described as having been effected by mistake.
The filing explains that on 11/18/2025 these 20 shares were rescinded through the broker's error account and are deemed to have never occurred, reflected as a J code entry at $0. After the reported transactions, the director beneficially owned 9,078 shares of common stock directly. The filing notes it is being submitted late and states that all profits from the reported transactions will be disgorged to the issuer pursuant to applicable requirements.