Kienzler Jack 4

What Happened
Jack Kienzler, Chief Financial Officer of Atmus Filtration Technologies (ATMU), sold 5,132 shares on June 1, 2026 at $45.25 per share, generating proceeds of $232,208. The sale was conducted to satisfy the reporting person's tax withholding obligation tied to the vesting of the first half of a launch grant award.

Key Details

• Transaction date: 2026-06-01; Filing date: 2026-06-02 (timely).
• Price and size: 5,132 shares sold at $45.25 each; total proceeds $232,208.
• Transaction type: S = Sale (listed as "open market or private sale").
• Footnote: Reflects shares sold upon vesting of first half of launch grant award to pay the reporting person's tax withholding obligation (F1).
• Shares owned after transaction: Not specified in the provided excerpt of the filing — see the full Form 4 for up-to-date holdings.

Context
This sale was a tax-withholding disposition tied to a vesting equity award, which is a common administrative transaction and not necessarily an indicator of the insider's view of the company. Form 4 was filed the next day, consistent with normal reporting timelines.