ATMU Form 4 reports acquisition/exercise transactions

Kienzler Jack reported acquisition or exercise transactions in a Form 4 filing for ATMU.

Rhea-AI Filing Summary

Kienzler Jack reported acquisition or exercise transactions in a Form 4 filing for ATMU. The filing lists transactions totaling 41,094 shares. Following the reported transactions, holdings were 95,890 shares.

Insider Trade Summary

Grant/Award: 41,094 shares

Grant/Award 1 txn

Insider Kienzler Jack

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	41,094	$0.00	$0.00

Holdings After Transaction: Common Stock — 95,890 shares (Direct)

Footnotes (1)

1. F1. Reflects shares earned based on achievement of performance metrics of the 2023 Performance Share Unit Award ("PSU") that cliff vest on March 1, 2026. The PSUs will convert 1:1 into common stock.

FAQ

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

What insider transaction did Atmus Filtration Technologies (ATMU) report for its CFO?

Atmus Filtration Technologies reported that CFO Jack Kienzler received 41,094 shares of common stock as an equity award. The shares were acquired on February 13, 2026 at $0 per share and increased his direct holdings to 95,890 shares.

Was the Atmus (ATMU) CFO Form 4 transaction a stock purchase or an award?

The Form 4 transaction for Atmus CFO Jack Kienzler was an equity award, not a market purchase. It reflects 41,094 shares earned from a 2023 Performance Share Unit grant that will cliff vest on March 1, 2026 and convert 1:1 into common stock.

How many Atmus (ATMU) shares does CFO Jack Kienzler own after this Form 4?

After the reported award, Atmus CFO Jack Kienzler beneficially owns 95,890 shares of common stock directly. This includes the 41,094 shares earned from performance-based PSUs tied to 2023 metrics, which were credited on February 13, 2026.

What is the nature of the 41,094 Atmus (ATMU) shares reported on the Form 4?

The 41,094 Atmus shares are performance-based award shares earned under a 2023 Performance Share Unit grant. They were credited at $0 per share and will cliff vest on March 1, 2026, with each PSU converting into one share of common stock.

When do the Atmus (ATMU) performance share units reported by the CFO vest?

The performance share units tied to the Atmus CFO’s award cliff vest on March 1, 2026. These PSUs were granted in 2023, earned based on achievement of performance metrics, and will convert into common stock on a one-for-one basis at vesting.

Is the Atmus (ATMU) CFO’s ownership from this Form 4 direct or indirect?

The ownership reported for Atmus CFO Jack Kienzler is direct. The Form 4 lists the 95,890 shares of common stock, including the 41,094 award shares, as directly owned, with no separate indirect ownership entity disclosed in the filing.

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

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Accepted by SEC EDGAR 02/17/2026 - 09:38 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^*

Kienzler Jack

(Last) (First) (Middle)

26 CENTURY BOULEVARD

(Street)

NASHVILLE TN 37214

(City) (State) (Zip)

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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/13/2026

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

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

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

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	02/13/2026		A		41,094(1)	A	$0	95,890	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 earned based on achievement of performance metrics of the 2023 Performance Share Unit Award ("PSU") that cliff vest on March 1, 2026. The PSUs will convert 1:1 into common stock.

Remarks:

	/s/Tiffany B. Williams, Attorney-In-Fact for Jack Kienzler	02/17/2026
	** 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.