SGMT executive plans sale of 350,987 shares

SGMT affiliate George Kemble filed a notice of proposed sales of company common stock.

Rhea-AI Filing Summary

SGMT affiliate George Kemble filed a notice of proposed sales of company common stock. The filing lists up to 350,987 shares to be sold on or about 08/14/2026 through Morgan Stanley Smith Barney LLC, with an aggregate market value of $3,257,159.36. SGMT had 61,591,159 common shares outstanding as of this notice. The filing also records prior Rule 10b5-1 plan sales by Kemble over the past three months, including 20,206 shares on 08/11/2026 for $201,146.40 and 18,844 shares on 07/20/2026 for $140,529.13, and describes the planned sale as following an exercise of stock options for cash.

Key Figures

Planned shares to be sold: 350,987 shares Aggregate market value of planned sale: $3,257,159.36 Shares outstanding: 61,591,159 shares +2 more

5 metrics

Planned shares to be sold 350,987 shares Common stock sale proposed for 08/14/2026

Aggregate market value of planned sale $3,257,159.36 Value associated with 350,987-share proposed sale

Shares outstanding 61,591,159 shares Common shares outstanding at time of notice

10b5-1 sale on 08/11/2026 20,206 shares for $201,146.40 Recent 10b5-1 plan sale by George Kemble

10b5-1 sale on 07/20/2026 18,844 shares for $140,529.13 Earlier 10b5-1 plan sale by George Kemble

Key Terms

Form 144, 10b5-1 Sales, Exercise of Stock Options

3 terms

Form 144 regulatory

"144: Filer Information | | | 144: Filer Information"

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.

10b5-1 Sales regulatory

"10b5-1 Sales for GEORGE KEMBLE 950 Tower Lane, Suite 1500"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Exercise of Stock Options financial

"Common | 08/14/2026 | Exercise of Stock Options | Issuer"

FAQ

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

What does SGMT's Form 144 filing by George Kemble disclose?

The Form 144 discloses that affiliate George Kemble plans to sell SGMT common stock following an exercise of stock options for cash, outlining the number of shares, approximate sale date, broker, and recent 10b5-1 plan sales.

How many SGMT shares does George Kemble plan to sell under this Form 144?

George Kemble plans to sell up to 350,987 shares of SGMT common stock. The proposed sale, through Morgan Stanley Smith Barney LLC, carries an aggregate market value of $3,257,159.36 based on the figures in the filing.

When is the proposed SGMT share sale by George Kemble expected to occur?

The proposed sale of SGMT shares by George Kemble is targeted for 08/14/2026. This date appears as the approximate sale date associated with the 350,987-share transaction and the related exercise of stock options for cash.

What recent 10b5-1 plan sales of SGMT stock has George Kemble reported?

George Kemble reported 10b5-1 plan sales of SGMT common stock including 20,206 shares on 08/11/2026 for $201,146.40 and 18,844 shares on 07/20/2026 for $140,529.13, as part of the three-month sales history.

How many SGMT shares were outstanding at the time of this Form 144 notice?

At the time of the notice, SGMT had 61,591,159 common shares outstanding. This figure provides context for the planned 350,987-share sale reported for affiliate George Kemble in the Form 144.

Which broker is handling George Kemble’s planned SGMT stock sale?

The planned SGMT stock sale is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, as specified in the Form 144 securities information section.

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

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Available on EDGAR 08/14/2026 - 04:39 PM Accepted by SEC EDGAR 08/14/2026 - 04:34 PM 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	0001858176
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	SAGIMET BIOSCIENCES INC
SEC File Number	001-41742
Address of Issuer	950 Tower Lane, Suite 1500 Foster City CALIFORNIA 94404
Phone	6505618600
Name of Person for Whose Account the Securities are To Be Sold	GEORGE KEMBLE
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	Director

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	350987	3257159.36	61591159	08/14/2026	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	08/14/2026	Exercise of Stock Options	Issuer			350987	08/14/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for GEORGE KEMBLE 950 Tower Lane, Suite 1500 Foster City CA 94404	Common	08/11/2026	20206	201146.40
10b5-1 Sales for GEORGE KEMBLE 950 Tower Lane, Suite 1500 Foster City CA 94404	Common	07/20/2026	18844	140529.13

144: Remarks and Signature

Remarks	The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
Date of Notice	08/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/21/2025
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/ George Kemble
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)