Atmus (NYSE: ATMU) CPO sells 2,566 shares to cover taxes

Rhea-AI Filing Summary

Atmus Filtration Technologies Chief People Officer Renee Swan reported an open-market sale of 2,566 shares of common stock at $45.247 per share. According to the filing, the shares were sold upon vesting of the first half of a launch grant award to pay her tax withholding obligation. After this transaction, she directly holds 50,745 shares of Atmus Filtration Technologies common stock.

Insider Trade Summary

Net Seller: 2,566 shares ($116,104)

Net Sell 1 txn

Insider Swan Renee

Role Chief People Officer

Sold 2,566 shs ($116K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,566	$45.247	$116K

Holdings After Transaction: Common Stock — 50,745 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 2,566 shares Sale price: $45.247 per share Shares held after transaction: 50,745 shares

3 metrics

Shares sold 2,566 shares Open-market sale on vesting of launch grant

Sale price $45.247 per share Price for common stock sale

Shares held after transaction 50,745 shares Direct ownership after sale

Key Terms

launch grant award, tax withholding obligation, open-market sale, Common Stock

4 terms

launch grant award financial

"Reflects shares sold upon vesting of first half of launch grant award"

tax withholding obligation financial

"to pay reporting person's tax withholding obligation"

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

""security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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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^*

Swan Renee

(Last) (First) (Middle)

26 CENTURY BOULEVARD

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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	06/01/2026		S		2,566(1)	D	$45.247	50,745	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 shares sold upon vesting of first half of launch grant award to pay reporting person's tax withholding obligation.

Remarks:

	/s/Tiffany B. Williams, Attorney-In-Fact for Renee Swan	06/02/2026
	** 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 insider transaction did Atmus (ATMU) report for Renee Swan?

Atmus reported that Chief People Officer Renee Swan sold 2,566 shares of common stock at $45.247 per share. The filing states these shares were sold upon vesting of a launch grant award to cover her tax withholding obligation.

How many Atmus (ATMU) shares did Renee Swan sell and at what price?

Renee Swan sold 2,566 Atmus Filtration Technologies common shares at $45.247 per share. This sale is disclosed as occurring in connection with vesting of the first half of a launch grant award, used to satisfy her tax withholding obligation.

Why did Renee Swan’s Atmus (ATMU) shares get sold according to the Form 4?

The Form 4 explains that the 2,566 shares were sold upon vesting of the first half of a launch grant award to pay Renee Swan’s tax withholding obligation. This indicates the sale was tied to compensation-related vesting rather than a stand-alone discretionary trade.

How many Atmus (ATMU) shares does Renee Swan hold after the reported sale?

After the reported transaction, Renee Swan directly holds 50,745 shares of Atmus Filtration Technologies common stock. This post-transaction figure in the Form 4 shows her remaining ownership position following the sale used to cover tax obligations on the vesting grant.

What role does Renee Swan hold at Atmus (ATMU) in this Form 4 filing?

In this Form 4, Renee Swan is identified as an officer of Atmus Filtration Technologies, serving as Chief People Officer. The reported transaction reflects activity in her personally held common stock tied to vesting of an equity launch grant award.