RPID Form 144: Affiliate Plans Sale of 38,327 Class A Shares

RPID filed a Form 144 reporting a proposed sale of Class A shares by an affiliate.

Rhea-AI Filing Summary

RPID filed a Form 144 reporting a proposed sale of Class A shares by an affiliate. The filing lists 38,327 Class A shares to be sold with an aggregate amount of $148,911.89, dated 02/18/2026. The filing also shows 12,840 Class A shares sold during the past three months for $48,569.87.

Insights

Securities Compliance Analyst

Routine Section 144 notice for an affiliate sale; figures and dates are explicitly provided.

The filing lists a proposed sale of 38,327 Class A shares with an aggregate value of $148,911.89 and a transaction date of 02/18/2026. It also discloses prior sales of 12,840 shares totaling $48,569.87.

Because this is a notice of a proposed sale under Section 144, timing and execution depend on market sale conditions and compliance with Rule 144; the excerpt does not state settlement details or the broker method. Subsequent filings will show actual execution.

FAQ

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

What does RPID's Form 144 report about planned insider sales?

The filing reports a proposed sale of 38,327 Class A shares with an aggregate value of $148,911.89, dated 02/18/2026. It notifies the market under Section 144 of the intended affiliate sale.

How many RPID shares were sold in the past three months by the filer?

The filing shows 12,840 Class A shares were sold in the past three months for $48,569.87. This is listed under "Securities Sold During The Past 3 Months."

Who is the reporting person on the RPID Form 144?

The filing lists Robert G. Spignesi at the address shown as the reporting person associated with the Form 144 notice for Class A shares.

What date is associated with the proposed sale in RPID's Form 144?

The proposed sale and the restricted stock vesting are dated 02/18/2026, and the filing includes the date 02/19/2026 in the securities header.

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

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Accepted by SEC EDGAR 02/19/2026 - 04:19 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	0001853904
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	RAPID MICRO BIOSYSTEMS, INC.
SEC File Number	001-40592
Address of Issuer	25 HARTWELL AVENUE LEXINGTON MASSACHUSETTS 02421
Phone	978-349-3200
Name of Person for Whose Account the Securities are To Be Sold	Spignesi Robert G. Jr.
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
Relationship to Issuer	Director

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
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	38327	148911.89	39823026	02/19/2026	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 *
Class A	02/18/2026	Restricted Stock Vesting	Issuer			38327	02/18/2026	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
Robert G. Spignesi 25 Hartwell Avenue Lexington MA 02421	Class A	02/09/2026	12840	48569.87

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	02/19/2026
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/ Tyler Johnson, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert G. Spignesi
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)