Atmus Filtration insider plans $197K stock sale

ATMU reporting person Renee M. Swan filed a notice of proposed sale of 3,870 shares of common stock through Fidelity Brokerage Services LLC on the NYSE, with an aggregate market value of $196,956.30.

Rhea-AI Filing Summary

ATMU reporting person Renee M. Swan filed a notice of proposed sale of 3,870 shares of common stock through Fidelity Brokerage Services LLC on the NYSE, with an aggregate market value of $196,956.30. These shares relate to restricted stock vesting from the issuer dated August 14, 2026 and are reported as compensation. The proposed sale date is August 17, 2026. In addition, Swan reports a prior sale during the past three months of 2,566 common shares on June 1, 2026 for proceeds of $116,104.57.

Key Figures

Proposed shares to be sold: 3,870 shares Aggregate market value of proposed sale: $196,956.30 Proposed sale date: 08/17/2026 +3 more

6 metrics

Proposed shares to be sold 3,870 shares Common stock to be sold through Fidelity Brokerage Services LLC

Aggregate market value of proposed sale $196,956.30 Value of 3,870 common shares proposed for sale

Proposed sale date 08/17/2026 Planned sale date for 3,870 common shares

Restricted stock vesting date 08/14/2026 Date of restricted stock vesting related to the proposed sale

Past 3-month shares sold 2,566 shares Common shares sold on 06/01/2026

Proceeds from prior sale $116,104.57 Aggregate proceeds from 2,566 shares sold on 06/01/2026

Key Terms

Form 144, restricted stock vesting, compensation

3 terms

Form 144 regulatory

"144: Filer Information | | | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

restricted stock vesting financial

"Common | 08/14/2026 | Restricted Stock Vesting | Issuer"

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.

compensation financial

"3870 | 08/14/2026 | Compensation"

FAQ

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

What does ATMU's Form 144 filing by Renee M. Swan disclose?

The Form 144 discloses a proposed sale of 3,870 ATMU common shares with an aggregate market value of $196,956.30, related to restricted stock vesting on August 14, 2026 and reported as compensation.

How many ATMU shares is Renee M. Swan planning to sell under this Form 144?

Renee M. Swan plans to sell 3,870 shares of ATMU common stock. The filing lists these shares with an aggregate market value of $196,956.30, to be sold through Fidelity Brokerage Services LLC on the NYSE.

What prior ATMU stock sale is reported in Renee M. Swan’s Form 144?

The filing reports that on June 1, 2026, Renee M. Swan sold 2,566 ATMU common shares for aggregate proceeds of $116,104.57 during the past three months preceding the new proposed sale.

What is the nature of the ATMU shares being sold by Renee M. Swan?

The 3,870 ATMU common shares are tied to restricted stock vesting dated August 14, 2026. The source of the securities is listed as the issuer, and the transaction type is characterized as compensation.

On which market will the proposed ATMU share sale by Renee M. Swan occur?

The proposed sale of 3,870 ATMU common shares is listed to occur on the NYSE. Fidelity Brokerage Services LLC is identified as the broker handling this transaction for Renee M. Swan.

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

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Available on EDGAR 08/17/2026 - 03:15 PM Accepted by SEC EDGAR 08/17/2026 - 03:14 PM Learn about SEC filing dates

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	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	3870	196956.30	81595527	08/17/2026	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	08/14/2026	Restricted Stock Vesting	Issuer			3870	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	06/01/2026	2566	116104.57

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	08/17/2026
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/ Corey Walter, 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)