Registered 18,012-share sale; prior Robert Mears trades (ATOM)

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 registering 18,012 shares of Common Stock for sale following a Stock Option Exercise. The filing lists the method as Cash and identifies the issuer market as NASDAQ.

Related reported sales by Robert Mears include 37,156 shares on 06/08/2026 for $306,817.67 and 5,453 shares on 06/01/2026 for $51,895.57.

Insights

Securities Compliance Analyst

Routine resale notice under Rule 144; documents an option exercise and recent dispositions.

The filing registers 18,012 shares of Common Stock for sale and specifies the sale method as a Stock Option Exercise settled in Cash. This is a standard resale notice and does not by itself change corporate finances.

Reported past sales by Robert Mears on 06/08/2026 and 06/01/2026 are included with exact share counts and proceeds; these appear as previously effected dispositions rather than new issuances.

Key Figures

Registered shares: 18,012 shares Sale on 06/08/2026: 37,156 shares Sale on 06/01/2026: 5,453 shares

3 metrics

Registered shares 18,012 shares Form 144 registration, Stock Option Exercise

Sale on 06/08/2026 37,156 shares Reported sale by Robert Mears for $306,817.67 on 06/08/2026

Sale on 06/01/2026 5,453 shares Reported sale by Robert Mears for $51,895.57 on 06/01/2026

Key Terms

Form 144, Stock Option Exercise, Cash

3 terms

Form 144 regulatory

"144: Securities To Be Sold | Common | 06/09/2026 | Stock Option Exercise"

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.

Stock Option Exercise financial

"144: Securities To Be Sold | Common | 06/09/2026 | Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Cash financial

"144: Securities To Be Sold | 06/09/2026 | Stock Option Exercise | ISSUER | 18012 | 06/09/2026 | Cash"

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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	18012	157605.00	38716500	06/09/2026	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	06/09/2026	Stock Option Exercise	ISSUER			18012	06/09/2026	Cash

* 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 Avenue, Suite 280, Los Gatos CA 95032	Common	06/08/2026	37156	306817.67
ROBERT MEARS 750 University Avenue, Suite 280, Los Gatos CA 95032	Common	06/01/2026	5453	51895.57

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 register?

It registers 18,012 shares of Common Stock for sale under a stock option exercise. The filing lists the sale method as Cash and indicates the issuer trades on NASDAQ.

Who reported recent sales in the filing for ATOM?

Robert Mears reported sales of Common Stock on 06/08/2026 and 06/01/2026. The filing lists specific share counts and gross proceeds for those transactions.

How many shares and proceeds were reported on 06/08/2026 for ATOM?

The filing shows 37,156 shares sold on 06/08/2026 for $306,817.67. This amount and share count are reported verbatim in the Form 144 excerpt.

What were the shares and proceeds reported on 06/01/2026 for ATOM?

The filing shows 5,453 shares sold on 06/01/2026 for $51,895.57. These figures are included in the seller's recent sales section of the notice.