Claire Mazumdar to sell BCAX shares (BCAX) — Form 144 notice

Rhea-AI Filing Summary

Claire Mazumdar reported proposed sales of Common Stock under Form 144. The filing lists transactions of 2,631, 1,786, and 3,817 shares on 03/04/2026, 03/05/2026, and 03/06/2026 with gross proceeds of $49,288.63, $33,464.10, and $71,571.80, respectively.

The form also shows a separate entry dated 03/09/2026 for 36,766 shares described as an exercise of stock options with cash listed as the method.

Insights

Securities Compliance Analyst

Routine Form 144 notice showing proposed insider sales and an option exercise.

The filing lists multiple small sales by Claire Mazumdar totaling 7,234 shares across three trade dates with corresponding gross proceeds in U.S. dollars. It separately records an exercise of stock options for 36,766 shares on 03/09/2026 paid in cash.

These entries are procedural disclosures required under resale rules; timing and final sale completion depend on broker execution and market activity. Subsequent SEC filings would show completed dispositions if and when they occur.

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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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	36766	704657.15	54781950	03/09/2026	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	03/09/2026	Exercise of stock options	Issuer			36766	03/09/2026	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 116 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	03/04/2026	2631	49288.63
Claire Mazumdar 116 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	03/05/2026	1786	33464.10
Claire Mazumdar 116 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	03/06/2026	3817	71571.80

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Claire Mazumdar's Form 144 for BCAX disclose?

The Form 144 discloses proposed sales of Common Stock by Claire Mazumdar. It lists sales of 2,631, 1,786, and 3,817 shares on 03/04/2026–03/06/2026 with gross proceeds shown in the filing.

How much gross proceeds are reported on the BCAX Form 144 by Mazumdar?

The filing shows gross proceeds of specific sales. The three reported transactions list proceeds of $49,288.63, $33,464.10, and $71,571.80, respectively, tied to each trade date.

Does the BCAX filing show other transactions beyond the three sales?

Yes; the excerpt records an option exercise. A separate entry dated 03/09/2026 lists 36,766 shares described as an exercise of stock options with cash as the method of payment.

Are these Form 144 entries final sales for BCAX shares?

Form 144 is a notice of proposed resale, not a confirmation of completed sales. The filing reports intended or proposed transactions; completion depends on subsequent broker execution and any required disclosure filings.

Where can I find completed sale details after a BCAX Form 144?

Completed dispositions are typically reported in subsequent SEC filings. Look for later Form 4 or other resale confirmations that state actual dates, amounts sold, and final proceeds associated with the transactions.