SES Form 144: 96,069 Class A Shares Sold

Morgan Stanley Smith Barney LLC reported the sale of 96,069 shares of Class A Common on 05/27/2026.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC reported the sale of 96,069 shares of Class A Common on 05/27/2026. The filing states the transaction arose from an exercise of options under a registered plan and the cash treatment is listed as Cash.

This notice is a Form 144 disclosure of securities to be sold and the method of sale; timing and additional proceeds recipients beyond the broker are not detailed in the excerpt.

Insights

Securities Compliance Attorney

Form 144 filing reports an option-exercise sale of 96,069 Class A shares on 05/27/2026.

The excerpt lists 96,069 shares and describes the method as an exercise of options under a registered plan with Cash treatment. The broker identified is Morgan Stanley Smith Barney LLC.

Regulatory implications are routine: Form 144 notifies the market of an intent to sell under Rule 144 conditions. Subsequent filings (sales confirmations or Form 4/Form 5 where applicable) would provide final disposition and beneficial-owner details.

Key Figures

Shares reported: 96,069 shares Filer/broker: Morgan Stanley Smith Barney LLC Identifier: 325402113

3 metrics

Shares reported 96,069 shares Class A Common reported for sale on <date>05/27/2026</date>

Filer/broker Morgan Stanley Smith Barney LLC Broker/dealer listed on the Form 144 cover lines

Identifier 325402113 CIK/identifier shown in the excerpt

Key Terms

Form 144, exercise of options under a registered plan, Class A Common

3 terms

Form 144 regulatory

"Securities To Be Sold — Class A Common | 05/27/2026 | Exercise of options under a registered plan"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

exercise of options under a registered plan financial

"Securities To Be Sold | Exercise of options under a registered plan | Issuer"

Class A Common financial

"Class A Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the SES Form 144 disclose about the transaction?

The filing discloses 96,069 shares of Class A Common sold on 05/27/2026. It specifies an exercise of options under a registered plan and lists the cash treatment as Cash, with Morgan Stanley Smith Barney LLC named as broker.

Who is listed as the broker or dealer in the SES Form 144?

The excerpt names Morgan Stanley Smith Barney LLC at 1 New York Plaza, 8th Floor, New York, NY. The filing pairs that broker identification with the sale of Class A Common on 05/27/2026 via option exercise.

Does the Form 144 show the sale proceeds for SES shares?

The excerpt contains the numeric entry 125,221.51 but does not explicitly label it as net proceeds in the visible text. The filing clearly shows 96,069 shares and the sale method; further documents would clarify proceeds allocation.

Does this Form 144 establish who will receive the cash from the SES sale?

The provided excerpt lists the sale as Cash and names the broker, but it does not explicitly state the ultimate recipient of cash proceeds. Beneficial-owner attribution and final cash recipients are not specified in the visible lines.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/27/2026 - 04:25 PM EDT Learn about SEC filing dates

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	0001907020
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SES AI CORPORATION
SEC File Number	001-39845
Address of Issuer	35 CABOT RD. WOBURN MASSACHUSETTS 01801
Phone	339-298-8750
Name of Person for Whose Account the Securities are To Be Sold	JING L NEALIS
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	Former Affiliate

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 Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	96069	125221.51	325402113	05/27/2026	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 *
Class A Common	05/27/2026	Exercise of options under a registered plan	Issuer			96069	05/27/2026	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	05/27/2026
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	/s/ Jing Nealis
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)