BCAX insider plans sale of 10,000 shares

BCAX insider Claire Mazumdar has notified of an intent to sell common stock under Rule 144.

Accepted by SEC EDGAR 07/10/2026 - 04:04 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

BCAX insider Claire Mazumdar has notified of an intent to sell common stock under Rule 144. The plan covers 10,000 shares to be sold through UBS Financial Services on July 10, 2026, following a cash exercise of stock options. In the prior three months, Mazumdar sold 15,000 shares on April 20, 2026 for $354,145.50 and another 15,000 shares on May 18, 2026 for $300,577.50.

Key Figures

Planned shares to be sold: 10,000 shares Aggregate market value of planned sale: $296,800.00 Shares sold April 20, 2026: 15,000 shares +3 more

6 metrics

Planned shares to be sold 10,000 shares Common stock planned sale on July 10, 2026

Aggregate market value of planned sale $296,800.00 Estimated value for 10,000-share sale on July 10, 2026

Shares sold April 20, 2026 15,000 shares BCAX common stock sale for $354,145.50

Proceeds from April 20, 2026 sale $354,145.50 Consideration for 15,000 BCAX shares sold

Shares sold May 18, 2026 15,000 shares BCAX common stock sale for $300,577.50

Proceeds from May 18, 2026 sale $300,577.50 Consideration for 15,000 BCAX shares sold

Key Terms

Exercise of stock options, Securities To Be Sold, Securities Sold During The Past 3 Months

3 terms

Exercise of stock options financial

"Common | 07/10/2026 | Exercise of stock options | Issuer"

Securities To Be Sold regulatory

"144: Securities To Be Sold Common | 07/10/2026 | Exercise"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months Claire Mazumdar"

FAQ

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

How many BCAX shares does Claire Mazumdar plan to sell?

Claire Mazumdar plans to sell 10,000 shares of BCAX common stock. The shares are expected to be sold through UBS Financial Services on July 10, 2026 after a cash exercise of stock options.

What is the approximate value of the planned BCAX share sale?

The planned sale of 10,000 BCAX shares has an aggregate market value of about $296,800.00. This value is based on the market information provided for the intended July 10, 2026 sale.

What BCAX stock sales has Claire Mazumdar made in the past 3 months?

Over the past three months, Claire Mazumdar sold 15,000 BCAX shares on April 20, 2026 for $354,145.50 and another 15,000 shares on May 18, 2026 for $300,577.50, both in BCAX common stock.

How will Claire Mazumdar acquire the BCAX shares to be sold?

The 10,000 BCAX shares are tied to an exercise of stock options for cash. After exercising these options, the resulting common shares are intended to be sold on July 10, 2026.

Which broker is handling Claire Mazumdar’s planned BCAX sale?

UBS Financial Services, Inc., located at 11 Madison Avenue in New York, is listed as the broker for Claire Mazumdar’s planned 10,000-share BCAX sale scheduled for July 10, 2026.

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	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	296800.00	65703866	07/10/2026	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	07/10/2026	Exercise of stock options	Issuer			10000	07/10/2026	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	04/20/2026	15000	354145.50

144: Remarks and Signature

Remarks
Date of Notice	07/10/2026
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)