CRBP insider files to sell Common Stock

CRBP insider filed a Form 144 to sell Common Stock.

Rhea-AI Filing Summary

CRBP insider filed a Form 144 to sell Common Stock. The notice lists proposed brokered sales through Stifel Nicolaus & Company and records Restricted Stock Units of 12,500 dated 02/28/2026. The filing also discloses a prior sale of 3,285 shares on 02/03/2026.

Insights

Securities Attorney

Form 144 notifies market of an intended insider sale; content is routine.

Rule 144 notices like this list proposed resale mechanics and broker details. The excerpt names Stifel Nicolaus & Company as the broker and includes an equity compensation entry of 12,500 Restricted Stock Units dated 02/28/2026.

Execution depends on compliance with Rule 144 holding and volume conditions; timing and gross proceeds are not stated in the provided excerpt, so subsequent filings or broker reports would show completion.

Corporate Governance Specialist

Prior insider activity is disclosed but appears routine and small-scale.

The filing records a prior disposition of 3,285 shares on 02/03/2026, with an accompanying numeric value shown in the excerpt. The current notice lists planned sales facilitated by a named broker.

Holder identity is shown as Dominic Smethurst for the prior sale; further details on remaining beneficial ownership or limitations are not present in the excerpt.

FAQ

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

What does CRBP's Form 144 disclose about planned insider sales?

The Form 144 notifies of proposed sales of Common Stock through Stifel Nicolaus. It lists broker details and an equity compensation item of 12,500 Restricted Stock Units dated 02/28/2026, indicating planned resale activity by an insider under Rule 144.

How many shares did the insider sell in the past three months for CRBP?

The excerpt reports a past sale of 3,285 Common Stock shares on 02/03/2026 by Dominic Smethurst. The filing includes a numeric value alongside that sale entry but does not state remaining holdings or post-sale ownership in the provided excerpt.

Who is the broker named in the CRBP Form 144 filing?

The filing names Stifel Nicolaus & Company Inc. at 501 N Broadway, St. Louis, MO as the broker for the securities to be sold. The notice ties the broker to Common Stock transactions dated 03/02/2026 in the excerpt.

Does the Form 144 show how many Restricted Stock Units are involved for CRBP?

Yes; the excerpt lists 12,500 Restricted Stock Units with an award date of 02/28/2026 under Equity Compensation. The filing does not state whether those RSUs are being immediately sold or the specific sale mechanics in this excerpt.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 03/02/2026 - 04:08 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	0001820549
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	Corbus Pharmaceuticals Holdings, Inc.
SEC File Number	001-37348
Address of Issuer	500 RIVER RIDGE DRIVE NORWOOD MASSACHUSETTS 02062
Phone	617-963-0103
Name of Person for Whose Account the Securities are To Be Sold	Smethurst Dominic
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
Common Stock	Stifel Nicolaus & Company Inc 501 N Broadway St. Louis MO 63102	6097	50601.00	12260000	03/02/2026	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 Stock	02/28/2026	Restricted Stock Units	Issuer			12500	02/28/2026	Equity 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
Dominic Smethurst 500 River Ridge Drive Norwood MA 02062	Common Stock	02/03/2026	3285	26575.00

144: Remarks and Signature

Remarks
Date of Notice	03/02/2026
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/ Luca Lotito, as a duly authorized representative of STIFEL, as attorney-in-fact for Dominic Smethurst
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)