Atmus director granted 2,619 RSUs

Leipold Jane A reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Leipold Jane A reported acquisition or exercise transactions in this Form 4 filing.

Atmus Filtration Technologies Inc. director Jane A. Leipold received an equity award in the form of 2,619 shares of common stock on May 12, 2026. These are Restricted Share Units granted as part of the company’s 2026–2027 annual director compensation program, at no cash cost to her.

The RSUs will fully vest on May 12, 2027, or at the next annual meeting of stockholders, whichever occurs first. Following this grant, Leipold directly holds 20,538 shares of Atmus Filtration Technologies common stock, reflecting both prior holdings and this new award.

Insider Trade Summary

Grant/Award: 2,619 shares

Grant/Award 1 txn

Insider Leipold Jane A

Role Director

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

Holdings After Transaction: Common Stock — 20,538 shares (Direct)

Footnotes (1)

1. 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.

Key Figures

RSUs granted: 2,619 shares Grant price: $0.00 per share Shares after grant: 20,538 shares +1 more

4 metrics

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

Grant price $0.00 per share Equity award, non-cash compensation

Shares after grant 20,538 shares Total direct holdings following transaction

Vesting date May 12, 2027 RSUs fully vest on this date or next annual meeting

Key Terms

Restricted Share Units, Annual Director Compensation, vest, Form 4

4 terms

Restricted Share Units financial

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

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

Annual Director Compensation financial

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

vest financial

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

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Atmus Filtration Technologies (ATMU) director Jane Leipold report on this Form 4?

Director Jane A. Leipold reported receiving 2,619 shares of Atmus common stock as a Restricted Share Unit award. The grant is part of the 2026–2027 annual director compensation and did not involve an open-market stock purchase or sale.

Is the Atmus (ATMU) Form 4 transaction a stock purchase or a compensation grant?

The Form 4 shows a compensation-related grant, not a market purchase. Jane Leipold received 2,619 Restricted Share Units with a zero dollar grant price as part of Atmus Filtration Technologies’ 2026–2027 annual director compensation program.

When do Jane Leipold’s Atmus (ATMU) Restricted Share Units vest?

The Restricted Share Units granted to Jane Leipold fully vest on May 12, 2027, or at the next annual meeting of stockholders, whichever comes first. Vesting converts the RSUs into common shares that she can own outright, subject to any company policies.

How many Atmus (ATMU) shares does Jane Leipold hold after this Form 4 transaction?

After the reported grant, Jane Leipold directly holds 20,538 shares of Atmus Filtration Technologies common stock. This total includes the newly awarded 2,619 Restricted Share Units as part of her overall equity stake in the company.

What does transaction code “A” mean in the Atmus (ATMU) Form 4 for Jane Leipold?

Transaction code “A” on the Form 4 indicates a grant, award, or other acquisition. In this case, it reflects a non-cash equity award of 2,619 Restricted Share Units to director Jane Leipold as part of Atmus’s director compensation program.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/13/2026 - 11:00 AM Learn about SEC filing dates

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^*

Leipold Jane A

(Last) (First) (Middle)

C/O TYCO ELECTRONICS LTD

1050 WESTLAKES DRIVE

(Street)

BERWYN PENNSYLVANIA 19312

(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	20,538	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 Jane Leipold	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)