[144] 908 Devices Inc. SEC Filing

Rhea-AI Filing Summary

908 Devices Inc. (MASS) Form 144 reports a proposed sale of 5,000 common shares to be executed through Morgan Stanley Smith Barney on the NASDAQ with an aggregate market value of $34,100. The filer acquired these shares on 03/22/2023 by previously exercised stock options from the issuer and paid in cash on that date. The filing shows 36,085,698 shares outstanding for the class and indicates no securities sold by the reporting person in the past three months. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information.

Insights

Securities Analyst

TL;DR Routine Rule 144 notice for a small sale of 5,000 shares; appears non-material to the company.

This Form 144 documents a planned Rule 144 sale of 5,000 common shares with an aggregate value of $34,100, originating from previously exercised options acquired 03/22/2023. Against a share count of 36,085,698, the position is immaterial in size and the filing reports no other sales in the prior three months. From an investor-impact perspective, this is a routine disclosure required for resale by affiliates or persons subject to resale limits and does not, on its face, indicate company-specific distress or significant insider disposition.

Corporate Governance Expert

TL;DR Compliance-focused disclosure consistent with Rule 144 procedures; no governance red flags evident.

The notice provides required mechanics: broker identity (Morgan Stanley Smith Barney), intended sale date (09/19/2025), and provenance of the shares (exercised options). The statement that no material nonpublic information is known by the seller is included. There are no indications of accelerated or large insider selling, contested management actions, or other governance events disclosed in this filing.

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	5000	34100.00	36085698	09/19/2025	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	03/22/2023	Previously Exercised Stock Options	Issuer			5000	03/22/2023	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

Nothing to Report

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 the Form 144 for 908 Devices (MASS) report?

The filing reports a proposed sale of 5,000 common shares through Morgan Stanley Smith Barney on 09/19/2025 with aggregate market value $34,100.

How and when were the shares being sold acquired?

The 5,000 shares were acquired on 03/22/2023 via previously exercised stock options from the issuer and paid in cash on that date.

How many shares outstanding does the filing show?

The filing lists 36,085,698 shares outstanding for the class of common stock.

Were any securities sold by the reporting person in the past three months?

No. The filing states Nothing to Report for securities sold during the past three months.

Which broker is handling the proposed sale?

The broker identified is Morgan Stanley Smith Barney LLC (Executive Financial Services, New York, NY).