[144] Amprius Technologies, Inc. SEC Filing

Rhea-AI Filing Summary

Amprius Technologies (AMPX) report of proposed sale under Rule 144: An individual plans to sell 19,159 shares of common stock on 08/21/2025 through Morgan Stanley Smith Barney LLC on the NYSE. The filing lists an aggregate market value of 130,592 and total shares outstanding of 125,075,837. The shares were acquired on 08/20/2025 upon the release of restricted stock units from the issuer; the filing shows 52,258 securities were acquired in that grant and payment was for compensation. No sales by the person in the prior three months are reported. The filer certifies they are not aware of undisclosed material adverse information.

Insights

Financial Analyst

TL;DR: Routine Rule 144 notice reporting a small open-market sale of newly released RSUs; immaterial to company capitalization.

The filing documents a planned sale of 19,159 common shares valued at 130,592 through Morgan Stanley Smith Barney on the NYSE. The shares were delivered from a restricted stock unit release dated one day earlier, indicating this is an insider or participant monetizing compensation rather than a corporate financing event. Relative to 125,075,837 shares outstanding, the sale represents a de minimis percentage of the float. There are no reported sales in the prior three months and no additional disclosures of material non-public information in the notice.

Corporate Governance Expert

TL;DR: Filing meets Rule 144 disclosure norms; the signer affirms lack of undisclosed material information and notes potential 10b5-1 plan language.

The notice includes the standard attestation that the seller is not aware of undisclosed material adverse information and references the possibility of a Rule 10b5-1 trading plan. The transaction arises from compensation-related RSU release and is being executed through a broker. From a governance standpoint, the filing is procedural and contains required Seller representations; no governance red flags or departures from expected insider-sale disclosure practices are evident in the document itself.

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 1 New York Plaza, 38th fl. New York NY 10004	19159	130592	125075837	08/21/2025	NYSE

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	08/20/2025	Release of restricted stock units	Issuer			52258	08/20/2025	Compensation

* 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

Nothing to Report

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)