Gretchen R. Haggerty - 12 May 2026 Form 4 Insider Report for Atmus Filtration Technologies Inc. (ATMU)

Reporting relationship: Director
Issuer ticker: ATMU
Reported as of: 12 May 2026
Net transaction value: +$109,999
SEC form: 4
Accepted by SEC: 13 May 2026, 10:36:31 UTC
Prior SEC filing: 06 Mar 2026
Next SEC filing: 19 May 2026
Source filing: View source filing
Reporting owner signature: /s/Tiffany B. Williams, Attorney-in-Fact for Gretchen Haggerty

Key filing fact

Gretchen R. Haggerty filed Form 4 for Atmus Filtration Technologies Inc. (ATMU) on 13 May 2026.

Key facts

This page summarizes Gretchen R. Haggerty's Form 4 filing for Atmus Filtration Technologies Inc. (ATMU).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 13 May 2026, 10:36.

Change

Previous filing in this sequence was filed on 06 Mar 2026.
Current net transaction value: +$109,999.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001236161 Primary reporting owner

HAGGERTY GRETCHEN R

Relationship: Director
Address: 5757 N GREEN BAY AVE, GLENDALE
Signature: /s/Tiffany B. Williams, Attorney-in-Fact for Gretchen Haggerty
Signature date: 13 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATMU transaction

Common Stock

Purchase

Transaction value: $5,591
Shares: +100
Change %: +0.42%
Price: $55.71
Shares after: 23,868
Date: 12 May 2026
Ownership: Direct

ATMU transaction

Common Stock

Purchase

Transaction value: $55.74
Shares: +1
Change %: +0%
Price: $55.74
Shares after: 23,869
Date: 12 May 2026
Ownership: Direct

ATMU transaction

Common Stock

Purchase

Transaction value: $104,353
Shares: +1,872
Change %: +7.8%
Price: $55.74
Shares after: 25,741
Date: 12 May 2026
Ownership: Direct

ATMU transaction

Common Stock

Award

Transaction value
Shares: +2,619
Change %: +10%
Price: $0.000000^*
Shares after: 28,360
Date: 12 May 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Reflects Restricted Share Units ("RSUs") granted on May 12, 2026, as part of the 2026-2027 Annual Director Compensation. The RSUs fully vest on May 12, 2027, or the next Annual Meeting of Stockholders, whichever comes first.