[144] Sera Prognostics, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 notice (SERA) records a proposed sale of 222 Class A common shares through Morgan Stanley Smith Barney on 09/05/2025 with an aggregate market value of 744. The filing states these shares were acquired the same day via restricted stock unit vesting and lists total shares outstanding as 38,061,868. The filer disclosed three sales in the past three months by Mansoor Raza Mirza: 107 shares on 06/06/2025 for gross proceeds 169; 234 shares on 07/07/2025 for gross proceeds 552; and 225 shares on 08/05/2025 for gross proceeds 563. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information.

Insights

Securities Compliance Analyst

TL;DR Routine Rule 144 notice for a small planned sale of vested restricted shares; standard seller attestation.

The filing documents a proposed sale of 222 Class A shares acquired by RSU vesting and slated to be sold via Morgan Stanley Smith Barney on 09/05/2025. The notice also discloses recent transactions by the same person totaling 566 shares over three months. The form includes the required attestation about absence of undisclosed material adverse information. From a compliance perspective, this is a standard execution of Rule 144 procedures.

Securities Markets Analyst

TL;DR Small-volume insider sale notice with disclosed prior micro-sales; no financial performance data included.

The document provides transactional detail but no operational or financial metrics. It confirms acquisition via restricted stock unit vesting and identifies broker and planned sale date. Prior sales by Mansoor Raza Mirza are listed with quantities and gross proceeds. There is insufficient information here to assess market or company impact beyond the explicit transaction details.

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
Class A Common	Morgan Stanley Smith Barney LLC 1 New York Plaza 38th Floor New York NY 10004	222	744	38061868	09/05/2025	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 *
Class A Common	09/05/2025	Restricted Stock Unit Vesting	Issuer			222	09/05/2025	Not Applicable

* 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
Mansoor Raza Mirza 2749 E. Parleys Way Suite 200 Salt Lake City UT 84109	Class A Common	06/06/2025	107	169
Mansoor Raza Mirza 2749 E. Parleys Way Suite 200 Salt Lake City UT 84109	Class A Common	07/07/2025	234	552
Mansoor Raza Mirza 2749 E. Parleys Way Suite 200 Salt Lake City UT 84109	Class A Common	08/05/2025	225	563

144: Remarks and Signature

Remarks

Date of Notice

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 the SERA Form 144 filed here report?

The filing reports a proposed sale of 222 Class A common shares to be executed on 09/05/2025 through Morgan Stanley Smith Barney with an aggregate market value of 744.

How were the 222 shares acquired according to the filing?

The filing states the shares were acquired on 09/05/2025 through Restricted Stock Unit vesting and the date of payment is listed as 09/05/2025.

What recent sales by the seller are disclosed in the filing?

Disclosed sales by Mansoor Raza Mirza in the past three months: 107 shares on 06/06/2025 (gross proceeds 169), 234 shares on 07/07/2025 (gross proceeds 552), and 225 shares on 08/05/2025 (gross proceeds 563).

Which broker is handling the proposed sale?

The proposed sale is to be handled by Morgan Stanley Smith Barney LLC (1 New York Plaza, 38th Floor, New York, NY 10004) and the securities exchange is listed as NASDAQ.

Does the filing include any statements about undisclosed material information?

Yes. The filer signs the standard representation that they do not know of any material adverse information regarding the issuer that has not been publicly disclosed.