RPID files Form 144 to sell 5,403 Class A shares

RPID reported a proposed sale of 5,403 shares of Class A common stock under Rule 144.

Accepted by SEC EDGAR 02/20/2026 - 04:41 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

RPID reported a proposed sale of 5,403 shares of Class A common stock under Rule 144.

The notice shows the shares are associated with a Restricted Stock Vesting event dated 02/19/2026, and it discloses a prior sale of 4,610 shares on 02/09/2026.

Insights

Corporate Finance Analyst

Form 144 lists a reported planned sale of 5,403 Class A shares tied to a vesting event.

The filing lists 5,403 shares as the securities to be sold, linked to a Restricted Stock Vesting entry dated 02/19/2026. It also records a prior sale of 4,610 shares on 02/09/2026. The cash‑flow treatment is not detailed in the excerpt.

Timing and method of sale are not specified beyond the Rule 144 notice; subsequent filings or broker confirmations may show execution. This filing is a routine insider sale notice and does not, by itself, change the company’s financials.

FAQ

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

What does RPID's Form 144 disclose?

It discloses a proposed sale of 5,403 Class A shares under Rule 144 on 02/19/2026. The filing ties the shares to a Restricted Stock Vesting event and notes a prior sale of 4,610 shares on 02/09/2026.

Who is the reported holder of the shares in the RPID Form 144?

The excerpt lists a brokerage entry at Fidelity Brokerage Services LLC and an individual address for John Wilson. The filing associates transactions with those entries but does not detail beneficial ownership structure beyond the listed names and addresses.

Does the Form 144 state how the shares will be sold?

The filing lists the securities to be sold and the vesting qualifier but does not specify sale methods. It does not disclose whether sales will be block trades, brokerage transactions, or otherwise in the provided excerpt.

Has RPID reported any recent sales before this Form 144?

Yes; the excerpt records a sale of 4,610 Class A shares on 02/09/2026. That prior sale is listed under 'Securities Sold During The Past 3 Months' in the provided content.

Does this Form 144 indicate company proceeds or issuer involvement?

No; the filing ties the shares to a vesting/compensation event and lists the proposed resale, but it does not state that the issuer will receive proceeds or describe proceeds treatment in the provided excerpt.

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

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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	0001872301
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	Wilson John J. Addington
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

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	5403	21195.97	39823026	02/20/2026	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	02/19/2026	Restricted Stock Vesting	Issuer			5403	02/19/2026	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
John Wilson 25 Hartwell Avenue Lexington MA 02421	Class A	02/09/2026	4610	17438.25

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	02/20/2026
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/ Eric Janiak, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John Wilson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)