Kienzler Jack 4

What Happened

• Jack Kienzler, Chief Financial Officer of Atmus Filtration Technologies (ATMU), was issued 41,094 shares on 2026-02-13 as an award (code A) with an acquisition price of $0.00, reported on a Form 4 filed 2026-02-17. The award reflects performance share units (PSUs) earned under a 2023 grant and will convert 1:1 into common stock when they vest.
• This was an award/grant, not a purchase or sale. The $0 acquisition price reflects that these were earned compensation (PSUs), not an open-market transaction.

Key Details

• Transaction date: 2026-02-13; Form 4 filed: 2026-02-17.
• Shares awarded: 41,094; reported acquisition price: $0.00 (total reported value $0).
• Shares owned after transaction: Not specified in the provided filing details.
• Footnote: PSUs were earned based on achievement of performance metrics from the 2023 Performance Share Unit Award; these PSUs cliff vest on March 1, 2026 and will convert 1:1 into common stock.
• Filing timeliness: No late-filing flag provided in the summary information.

Context

• Performance share units (PSUs) are common long-term compensation: they are typically subject to performance conditions and vesting schedules. These PSUs will convert to shares upon vesting (cliff vest on 2026-03-01), which is when Kienzler will actually hold transferable shares.
• Because this is an award (not a purchase), it should be viewed as compensation delivery rather than a direct insider signal of buying or selling activity.