5,453 ATOM Shares Vest; Prior Seller Robert Mears (ATOM)

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC filed a Form 144 relating to Common stock tied to the vesting of 5,453 shares under the issuer's equity compensation plan, dated 06/01/2026. The filing also records a prior sale of 3,979 shares by Robert Mears on 03/02/2026 for $19,690.04.

Insights

Securities Compliance Analyst

Form 144 notice for vesting and resale of restricted shares.

This filing lists the vesting of 5,453 shares granted under the issuer's equity compensation plan dated 06/01/2026. The form provides a customary resale notice under Rule 144 rather than detailed transaction mechanics.

It also documents a prior open-market disposition of 3,979 shares by Robert Mears on 03/02/2026 for $19,690.04. Cash‑flow treatment and planned sale method are not specified in the excerpt.

Key Figures

Vesting shares: 5,453 shares Prior sale - shares: 3,979 shares Prior sale - proceeds: $19,690.04 +1 more

4 metrics

Vesting shares 5,453 shares vesting under issuer equity compensation plan on <date>06/01/2026</date>

Prior sale - shares 3,979 shares sold by Robert Mears on <date>03/02/2026</date>

Prior sale - proceeds $19,690.04 proceeds from Robert Mears sale on <date>03/02/2026</date>

Shares outstanding 38,716,500 shares figure present in excerpt with date <date>06/01/2026</date>

Key Terms

Rule 144, Restricted Stock, Vesting

3 terms

Rule 144 regulatory

"Securities To Be Sold 06/01/2026 Vesting of Restricted Stock"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock financial

"Vesting of Restricted Stock Granted as part of issuer's equity compensation plan."

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Vesting financial

"06/01/2026 Vesting of Restricted Stock Granted as part of issuer's equity compensation plan."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5453	51895.57	38716500	06/01/2026	NASDAQ

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	06/01/2026	Vesting of Restricted Stock	Issuer			5453	06/01/2026	Granted as part of issuer's equity compensation plan.

* 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
Robert Mears 750 University Ave, Suite 280 Los Gatos CA 95032	Common	03/02/2026	3979	19690.04

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does ATOM's Form 144 disclose?

The filing discloses vesting of 5,453 shares of Common stock under the issuer's equity compensation plan on 06/01/2026. It also records a prior sale of 3,979 shares by Robert Mears on 03/02/2026 for $19,690.04.

Who is listed as the filer on the Form 144 for ATOM?

Morgan Stanley Smith Barney LLC is shown as the filer for the Common stock resale notice. The filing links the notice to the issuer's equity compensation plan and includes a named seller, Robert Mears, for a prior transaction.

How many shares vested and when for ATOM in this filing?

The filing states 5,453 shares vested as part of the issuer’s equity compensation plan on 06/01/2026. The notice ties these shares to a Rule 144 resale disclosure rather than specifying an immediate sale execution method.

What prior sales are reported in the ATOM excerpt?

The excerpt shows Robert Mears sold 3,979 shares on 03/02/2026 with a reported proceeds amount of $19,690.04. This prior sale is listed under "Securities Sold During The Past 3 Months."