XMTR (NASDAQ) affiliate Randolph Altschuler reports recent sales, proposes 5,721 RSU sale

Rhea-AI Filing Summary

XMTR affiliate filed a Form 144 proposing to sell equity. The filing lists an intended sale of 5,721 RSUs on 04/01/2026. It also discloses prior sales by Randolph Altschuler of 14,826 shares on 01/05/2026 for $986,419.74 and 31,928 shares on 02/26/2026 for $1,387,102.38.

Insights

Securities Compliance Specialist

Form 144 lists a proposed RSU sale and recent executed sales by an affiliate.

The filing records a proposed disposition of 5,721 RSUs dated 04/01/2026 and two prior sales by Randolph Altschuler on 01/05/2026 and 02/26/2026 with stated proceeds. This is a routine Section 144 notice by an affiliate.

Timing and mechanics of any future sale depend on compliance with Rule 144 conditions; subsequent Form 4 or transaction reports could provide completion details.

Key Figures

Proposed RSUs to be sold: 5,721 RSUs Sale on 01/05/2026: 14,826 shares Sale on 02/26/2026: 31,928 shares

3 metrics

Proposed RSUs to be sold 5,721 RSUs proposed sale dated 04/01/2026

Sale on 01/05/2026 14,826 shares proceeds reported as $986,419.74

Sale on 02/26/2026 31,928 shares proceeds reported as $1,387,102.38

Key Terms

Form 144, RSU, Issuer

3 terms

Form 144 regulatory

"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.

RSU financial

"Common | 04/01/2026 | RSU | Issuer"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Issuer regulatory

"Common | 04/01/2026 | RSU | Issuer"

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

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	UBS Financial Services Inc. 11 Madison Avenue 4th Floor New York NY 10010	5721	238654.94	50349113	04/02/2026	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	04/01/2026	RSU	Issuer			5721	04/01/2026	NA

* 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
Randolph Altschuler 6116 EXECUTIVE BOULEVARD, SUITE 800 NORTH BETHESDA MD 20852	Common	01/05/2026	14826	986419.74
Randolph Altschuler 6116 EXECUTIVE BOULEVARD SUITE 800 NORTH BETHESDA MD 20852	Common	02/26/2026	31928	1387102.38

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 XMTR's Form 144 disclose about the proposed sale?

The Form 144 discloses a proposed sale of 5,721 RSUs with an effective date of 04/01/2026. The filing lists the security type as Common/RSU and identifies the filing as a Section 144 notice by an affiliate.

What prior sales by Randolph Altschuler are reported in the filing?

The filing reports two prior sales by Randolph Altschuler: 14,826 shares on 01/05/2026 for $986,419.74, and 31,928 shares on 02/26/2026 for $1,387,102.38. These are shown as sales during the past three months.

Does the Form 144 indicate how the RSUs will be sold for XMTR?

The excerpt lists the RSUs as to be sold and labels the issuer role as Issuer for the 04/01/2026 entry. Detailed plan-of-distribution methods are not included in the provided excerpt.

Who is the reporting party named in the filing for XMTR?

The filing identifies Randolph Altschuler as a reporting party associated with the disclosed sales, including the two executed sales in January and February 2026 and the RSU entry dated 04/01/2026.

Will the Form 144 itself complete the sale of the shares?

No. The Form 144 is a notice of a proposed sale under Rule 144; it does not itself execute the transaction. Completion details would appear in subsequent transaction reports or issuer disclosures.