Diego Donoso - 02 Apr 2025 Form 4 Insider Report for Atmus Filtration Technologies Inc. (ATMU)

Role
Director
Signature
/s/Tiffany B. Williams, Attorney-in-Fact for Diego Donoso
Issuer symbol
ATMU
Transactions as of
02 Apr 2025
Transactions value $
-$676
Form type
4
Filing time
19 Nov 2025, 13:35:08 UTC
Previous filing
02 Apr 2025
Next filing
21 May 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Donoso Diego Director 26 CENTURY BOULEVARD, NASHVILLE /s/Tiffany B. Williams, Attorney-in-Fact for Diego Donoso 19 Nov 2025 0001809708

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ATMU Common Stock Sale -$1.51K -40 -0.44% $37.79 9.04K 02 Apr 2025 Direct
transaction ATMU Common Stock Purchase $1.13K +25 +0.28% $45.00 9.06K 13 Aug 2025 Direct
transaction ATMU Common Stock Purchase $687 +15 +0.17% $45.81 9.08K 05 Sep 2025 Direct
transaction ATMU Common Stock Sale -$977 -20 -0.22% $48.84 9.06K 13 Nov 2025 Direct F1
transaction ATMU Common Stock Other $0 +20 +0.22% $0.00 9.08K 18 Nov 2025 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On November 13, 2025, the sale of these shares by the reporting person was effected by mistake.
F2 On November 18, 2025, the shares from November 13, 2025 were rescinded through the broker's error account and therefore are deemed to have never occurred.

Remarks:

This Form 4 is being filed late due to the fact that the reported transactions only recently came to the attention of the reporting person and the issuer. Neither the reporting person nor the issuer was aware of the transactions at the time they occurred. Upon discovery, the issuer promptly took steps to prepare and file this Form 4 reflecting the transactions. All profits from the reported transactions will be disgorged to the issuer pursuant to applicable requirements.