BCAX insider plans sale of 10,000 shares

BCAX insider Claire Mazumdar plans to sell 10,000 shares of common stock through UBS Financial Services on 08/10/2026, following an exercise of stock options for cash.

Rhea-AI Filing Summary

BCAX insider Claire Mazumdar plans to sell 10,000 shares of common stock through UBS Financial Services on 08/10/2026, following an exercise of stock options for cash. The planned sale has a proposed aggregate value of $278,300.00.

In the preceding three months, Mazumdar sold 15,000 common shares for $300,577.50 on 05/18/2026 and 10,000 shares for $284,994.00 on 07/10/2026.

Key Figures

Shares to be sold: 10,000 shares Proposed aggregate value: $278,300.00 Prior sale 05/18/2026: 15,000 shares; $300,577.50 +1 more

4 metrics

Shares to be sold 10,000 shares Planned sale of common stock on 08/10/2026

Proposed aggregate value $278,300.00 Planned 10,000-share sale via UBS Financial Services

Prior sale 05/18/2026 15,000 shares; $300,577.50 Common stock sold by Claire Mazumdar

Prior sale 07/10/2026 10,000 shares; $284,994.00 Common stock sold by Claire Mazumdar

Key Terms

Form 144, Exercise of stock options, Securities Sold During The Past 3 Months, Common

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

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.

Exercise of stock options financial

"Common | 08/10/2026 | Exercise of stock options | Issuer"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

Common financial

"Common | UBS Financial Services, Inc. 11 Madison Ave"

FAQ

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

What does the Form 144 for BCAX report about upcoming share sales?

The Form 144 reports that Claire Mazumdar intends to sell 10,000 BCAX common shares on 08/10/2026 through UBS Financial Services for a proposed aggregate amount of $278,300.00, following an exercise of stock options for cash.

How many BCAX shares has Claire Mazumdar sold in the last three months?

Claire Mazumdar sold 25,000 BCAX common shares in the last three months: 15,000 shares for $300,577.50 on 05/18/2026 and 10,000 shares for $284,994.00 on 07/10/2026.

What is the proposed value of Claire Mazumdar’s next BCAX share sale?

The planned sale covers 10,000 BCAX common shares with a proposed aggregate value of $278,300.00. The transaction is tied to an exercise of stock options for cash, with UBS Financial Services as the broker.

How are the BCAX shares in this Form 144 being acquired before sale?

The 10,000 BCAX common shares to be sold on 08/10/2026 are being obtained through an exercise of stock options for cash from the issuer, after which they are planned for sale via UBS Financial Services.

Who is the broker handling Claire Mazumdar’s planned BCAX share sale?

The planned sale of 10,000 BCAX common shares on 08/10/2026 will be handled by UBS Financial Services, Inc., located at 11 Madison Ave, 4th Floor, New York, NY 10010, according to the Form 144 disclosure.

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

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Accepted by SEC EDGAR 08/10/2026 - 04:09 PM EDT 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	0002034671
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	Bicara Therapeutics Inc.
SEC File Number	001-42271
Address of Issuer	116 HUNTINGTON AVENUE SUITE 703 BOSTON MASSACHUSETTS 02116
Phone	617-468-4219
Name of Person for Whose Account the Securities are To Be Sold	Mazumdar Claire
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
Common	UBS Financial Services, Inc. 11 Madison Ave 4th Floor New York NY 10010	10000	278300.00	65703866	08/10/2026	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	08/10/2026	Exercise of stock options	Issuer			10000	08/10/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Claire Mazumdar 16 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	05/18/2026	15000	300577.50
Claire Mazumdar 16 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	07/10/2026	10000	284994.00

144: Remarks and Signature

Remarks
Date of Notice	08/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/31/2026
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/ UBS Financial Services Inc., as attorney-in-fact for Claire Mazumdar
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)