Sera Biotherapeutics (NASDAQ: SERA) director plans sale of 1,560 shares via 10b5-1

Rhea-AI Filing Summary

SERA filed a Form 144 reporting a proposed sale of 1,560 shares of common stock.

The filing identifies the securities as Restricted Stock Units dated 01/05/2026 and records prior 10b5-1 sales by Sandra A J Lawrence of 1,560 shares on 12/08/2025. The notice lists NASDAQ as the market and 03/06/2026 appears as a filing reference date.

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1560	3120.00	37627034	03/06/2026	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	01/05/2026	Restricted Stock Units	Issuer			1560	01/05/2026	N/A

* 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
10b5-1 Sales for SANDRA A J LAWRENCE 2749 East Parleys Way, Suite 200 Salt Lake City UT 84109	Common	12/08/2025	1560	4751.92

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 SERA's Form 144 report?

The Form 144 reports a proposed sale of 1,560 common shares. It lists the shares as Restricted Stock Units dated 01/05/2026 and references prior 10b5-1 sales on 12/08/2025 by Sandra A J Lawrence.

Who is the selling party in the SERA Form 144?

The filing identifies Sandra A J Lawrence in connection with 10b5-1 sales. The document lists a 10b5-1 sale of 1,560 shares on 12/08/2025 and references the planned transaction dated 03/06/2026.

How many shares are covered by the Form 144 for SERA?

The Form 144 covers a proposed sale of 1,560 shares of common stock. The same quantity, 1,560 shares, is shown under prior 10b5-1 sales on 12/08/2025 in the filing excerpt.

What type of securities are being sold according to the SERA filing?

The filing lists the securities as Restricted Stock Units (RSUs) dated 01/05/2026. The Form 144 also references 10b5-1 sale activity tied to those common shares.

Which market is listed in the SERA Form 144?

The filing lists NASDAQ as the market for the securities. The excerpt shows market identification alongside the security and filing reference date 03/06/2026.