Atmus Filtration (ATMU) director granted 2,619 RSUs in 2026-2027 award

Rhea-AI Filing Summary

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.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sharp Heath

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,619	$0.00	--

Holdings After Transaction: Common Stock — 5,733 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSUs granted: 2,619 shares Holdings after transaction: 5,733 shares Grant price: $0.00 per share +1 more

4 metrics

RSUs granted 2,619 shares Restricted Share Units granted May 12, 2026

Holdings after transaction 5,733 shares Total direct common stock holdings after grant

Grant price $0.00 per share Equity award, no cash consideration

RSU vesting date May 12, 2027 Fully vests then or at next annual meeting, whichever first

Key Terms

Restricted Share Units ("RSUs"), Annual Director Compensation, fully vest

3 terms

Restricted Share Units ("RSUs") financial

"Reflects Restricted Share Units ("RSUs") granted on May 12, 2026, as part of the 2026-2027 Annual Director Compensation."

Annual Director Compensation financial

"granted on May 12, 2026, as part of the 2026-2027 Annual Director Compensation."

fully vest financial

"The RSUs fully vest on May 12, 2027, or the next Annual Meeting of Stockholders, whichever comes first."

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sharp Heath

(Last) (First) (Middle)

26 CENTURY BLVD ONE CENTURY PLACE

5TH FLOOR, NORTH TOWER, STE 500

(Street)

NASHVILLE TENNESSEE 37214

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Atmus Filtration Technologies Inc. [ ATMU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock(1)	05/12/2026		A		2,619	A	$0	5,733	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

Remarks:

	/s/Tiffany B. Williams, Attorney-in-fact for Heath Sharp	05/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Atmus Filtration (ATMU) director Heath Sharp report on this Form 4?

Director Heath Sharp reported receiving 2,619 shares linked to Restricted Share Units as a grant on May 12, 2026. The acquisition was part of the 2026-2027 Annual Director Compensation program and did not involve an open-market stock purchase.

How many Atmus Filtration (ATMU) shares does Heath Sharp hold after this grant?

After the grant, Heath Sharp directly holds 5,733 shares of Atmus Filtration common stock. This total includes the 2,619 shares associated with Restricted Share Units granted as part of the company’s 2026-2027 Annual Director Compensation program.

Was Heath Sharp’s Atmus Filtration equity grant an open-market stock purchase?

No, the Form 4 shows a grant coded as a compensation award, not an open-market purchase. The 2,619 shares associated with Restricted Share Units were acquired at zero dollar price per share under the 2026-2027 Annual Director Compensation program.

When do Heath Sharp’s Atmus Filtration RSUs from this grant vest?

The Restricted Share Units granted to Heath Sharp fully vest on May 12, 2027, or on the date of the next Annual Meeting of Stockholders, whichever comes first. Until vesting, the award remains subject to the stated time-based vesting condition.

Is this Atmus Filtration (ATMU) Form 4 transaction part of director compensation?

Yes, the Form 4 specifies the 2,619 Restricted Share Units were granted on May 12, 2026 as part of the 2026-2027 Annual Director Compensation. This indicates a routine board compensation award rather than a discretionary market trade.