Atmus Filtration former officer proposes $1.8M sale

Available on EDGAR 11/12/2026 - 11:11 AM EST Accepted by SEC EDGAR 11/12/2026 - 11:11 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Atmus Filtration Technologies Inc. (ATMU) reports a Form 144 notice by former officer Renee M. Swan for a proposed sale of 31,876 common shares, with an aggregate market value of $1,800,693.55 and an approximate sale date of November 12, 2026. Fidelity Brokerage Services LLC is listed as the broker.

The notice lists five restricted-stock vesting acquisitions: 6,272 shares on August 14, 2024; 4,801 on August 14, 2025; 11,126 on March 1, 2026; 3,739 on May 30, 2026; and 5,938 on August 14, 2026. It also reports that Swan sold 3,870 common shares on August 17, 2026, for gross proceeds of $196,956.30.

Key Figures

Shares proposed for sale: 31,876 common shares Aggregate market value: $1,800,693.55 Shares outstanding: 81,204,533 shares +2 more

5 metrics

Shares proposed for sale 31,876 common shares Form 144 notice; approximate sale date November 12, 2026

Aggregate market value $1,800,693.55 Shares listed for proposed sale

Shares outstanding 81,204,533 shares Number reported in the securities information

Prior shares sold 3,870 common shares Sale on August 17, 2026

Gross proceeds $196,956.30 Sale on August 17, 2026

Key Terms

Restricted Stock Vesting, Aggregate Market Value

2 terms

Restricted Stock Vesting financial

"acquired through restricted stock vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Aggregate Market Value financial

"aggregate market value of $1,800,693.55"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

How many ATMU shares does Renee M. Swan plan to sell?

Former officer Renee M. Swan's notice lists a proposed sale of 31,876 common shares, with an aggregate market value of $1,800,693.55 and an approximate sale date of November 12, 2026. Fidelity Brokerage Services LLC is listed as the broker.

How many ATMU shares did Renee M. Swan recently sell?

The notice reports that Renee M. Swan sold 3,870 common shares on August 17, 2026, for gross proceeds of $196,956.30.

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

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001989065
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Atmus Filtration Technologies Inc.
SEC File Number	001-41710
Address of Issuer	26 CENTURY BOULEVARD SUITE 500 NASHVILLE TENNESSEE 37214
Phone	6155147339
Name of Person for Whose Account the Securities are To Be Sold	Swan Renee
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	31876	1800693.55	81204533	11/12/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/14/2024	Restricted Stock Vesting	Issuer			6272	08/14/2024	Compensation
Common	08/14/2025	Restricted Stock Vesting	Issuer			4801	08/14/2025	Compensation
Common	03/01/2026	Restricted Stock Vesting	Issuer			11126	03/01/2026	compensation
Common	05/30/2026	Restricted Stock Vesting	Issuer			3739	05/30/2026	compensation
Common	08/14/2026	Restricted Stock Vesting	Issuer			5938	08/14/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Renee M. Swan 26 Century Boulevard Nashville TN 37214	Common	08/17/2026	3870	196956.30

144: Remarks and Signature

Remarks
Date of Notice	11/12/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Renee M. Swan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)