[144] Sera Prognostics, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 filing reports a proposed sale of 6,447 Class A Common shares of Sera Prognostics (SERA) through Morgan Stanley Smith Barney on NASDAQ with an aggregate market value of $16,377. The record lists 38,061,868 shares outstanding. The securities were acquired via restricted stock unit vesting from the issuer on 08/08/2025, with the same date shown as the approximate sale date.

The filing also discloses sales in the past three months by Benjamin Jackson: 7,084 shares sold on 05/08/2025 for $17,303 and 965 shares sold on 06/10/2025 for $1,433. Several standard filer contact fields (CIK/CCC and named account fields) are not populated in the provided content.

Insights

Financial Analyst

TL;DR: Routine Form 144 notice for a small RSU-derived sale; amounts are immaterial to overall share count.

The filing documents a proposed sale of 6,447 shares valued at $16,377, against 38,061,868 shares outstanding, representing roughly 0.017% of the outstanding stock. Prior three-month disposals total 8,049 shares for $18,736. These figures indicate small, routine insider liquidity rather than a material equity shift. The filing provides transaction dates, broker details, and vesting provenance (RSU vesting), supporting compliance and transparency.

Corporate Governance Expert

TL;DR: The notice is a standard compliance disclosure showing RSU vesting and planned sales; governance disclosure appears complete for Rule 144 purposes.

The form identifies the broker (Morgan Stanley Smith Barney), acquisition method (Restricted Stock Unit Vesting on 08/08/2025), and prior sales by Benjamin Jackson in May and June 2025 with gross proceeds. While some filer header fields are blank in the provided extract, the core Rule 144 sale and acquisition details are present, fulfilling the primary disclosure requirements for proposed insider sales.

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	6447	16377	38061868	08/08/2025	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	08/08/2025	Restricted Stock Unit Vesting	Issuer			6447	08/08/2025	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
Benjamin Jackson 2749 E. Parleys Way Suite 200 Salt Lake City UT 84109	Class A Common	05/08/2025	7084	17303
Benjamin Jackson 2749 E. Parleys Way Suite 200 Salt Lake City UT 84109	Class A Common	06/10/2025	965	1433

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 report?

The Form 144 reports a proposed sale of 6,447 Class A Common shares of Sera Prognostics via Morgan Stanley Smith Barney on 08/08/2025, aggregate market value $16,377.

How were the securities acquired according to the filing?

The securities were acquired by Restricted Stock Unit (RSU) vesting from the issuer on 08/08/2025, amount 6,447 shares.

Who sold shares in the past three months per the filing?

Benjamin Jackson is listed as selling 7,084 shares on 05/08/2025 for $17,303 and 965 shares on 06/10/2025 for $1,433.

How many SERA shares are outstanding as shown in the filing?

The filing shows 38,061,868 shares outstanding.

Which broker is named for the proposed sale in the Form 144?

The broker named is Morgan Stanley Smith Barney LLC, 1 New York Plaza, New York, NY.