BCAX (NASDAQ: BCAX) affiliate sells shares; planned 1,596‑share option exercise

Rhea-AI Filing Summary

BCAX affiliate reported planned sale of Common Stock and multiple recent dispositions. The filing lists 03/20/2026 for an intended sale of 1,596 shares via exercise of stock options for cash. The excerpt also lists past dispositions over the prior three months totaling specific tranches on 03/04/2026, 03/05/2026, 03/06/2026, 03/09/2026, 03/18/2026, and 03/19/2026 by Claire Mazumdar with per‑trade share counts and dollar values provided.

Insights

Securities Counsel

Notice documents proposed sale and recent affiliate dispositions.

The form lists a proposed sale of 1,596 shares on 03/20/2026 tied to an exercise of stock options with cash consideration. The filing also itemizes multiple past sales by Claire Mazumdar with exact share counts and gross proceeds per trade.

These entries are routine compliance disclosures under resale notice requirements; timing and cash‑flow recipients are stated as Issuer for the 03/20/2026 entry and per‑trade dollar amounts are shown for prior dispositions.

Equity Markets Analyst

Series of small to mid‑size affiliate sales recorded; no material corporate action disclosed.

The excerpt shows individual dispositions ranging from 1,786 to 36,766 shares on specific dates in March 2026, each with stated gross proceeds. These transactions reflect affiliate liquidity, not an issuer capital raise.

Impact on outstanding float or investor thesis is not quantified in the excerpt; subsequent filings would be needed for market‑level assessment.

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

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	1596	30246.27	54781950	03/20/2026	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 *
Common	03/20/2026	Exercise of stock options	Issuer			1596	03/20/2026	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
Claire Mazumdar 116 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	03/09/2026	36766	704657.16
Claire Mazumdar 16 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	03/18/2026	6499	122414.51
Claire Mazumdar 16 HUNTINGTON AVENUE SUITE 703 Boston MA 02116	Common	03/19/2026	6905	129704.90

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 BCAX's Form 144 filed by Claire Mazumdar report?

It reports a proposed sale of 1,596 shares on 03/20/2026 tied to an exercise of stock options. The excerpt also lists multiple prior March 2026 dispositions with per‑trade share counts and gross proceeds.

How many shares did Claire Mazumdar sell in March 2026 according to the excerpt?

The excerpt lists several separate March 2026 sales with exact counts: 2,631, 1,786, 3,817, 36,766, 6,499, and 6,905 shares. Each trade shows a corresponding dollar amount in the filing.

Was the 03/20/2026 transaction for BCAX described as an issuer sale or resale?

The 03/20/2026 entry is labeled as an Exercise of stock options with the method indicated as Issuer and consideration as Cash, per the excerpt's securities‑to‑be‑sold line.

Do these Form 144 entries indicate new shares issued by BCAX?

The excerpt shows an option exercise entry and multiple affiliate dispositions. It documents transfers and sales; it does not, by itself, state that the company issued new authorized shares beyond the exercise mechanics shown.

Are gross proceeds shown for the prior March 2026 sales in the excerpt?

Yes. Each prior sale listed includes a dollar value: for example, the 03/09/2026 sale of 36,766 shares shows $704,657.16, and other dates list corresponding gross proceeds.