SGMT · Sagimet Biosciences Inc.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

This option is fully vested and exercisable as of the date hereof.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.95 to $10.57, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

This option is fully vested and exercisable as of the date hereof.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

This option is fully vested and exercisable as of the date hereof.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.95 to $9.99, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

This option is fully vested and exercisable as of the date hereof.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.76 to $7.94, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.76 to $7.88, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.17 to $7.97, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 12, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 12, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 12, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 12, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 12, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 12, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following May 28, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following May 28, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following May 28, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following May 28, 2026, subject to the Reporting Person's continued service on each such vesting date.

25% of the shares underlying this option shall vest and become exercisable on April 20, 2027, with the remaining 75% vesting over thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

Represents restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Series A Common Stock upon vesting and settlement. The RSUs shall vest over four equal annual installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

Represents restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Series A Common Stock upon vesting and settlement. The RSUs shall vest over four equal annual installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

Represents restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Series A Common Stock upon vesting and settlement. The RSUs shall vest over four equal annual installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

Represents restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Series A Common Stock upon vesting and settlement. The RSUs shall vest over four equal annual installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following February 19, 2026, subject to the Reporting Person's continued service on each such vesting date.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on August 21, 2025.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.27 to $8.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Represents restricted stock units ("RSUs") granted in connection with the Reporting Person's promotion within the Company. Each RSU represents a contingent right to receive one share of the Issuer's Series A Common Stock upon vesting and settlement. The RSUs shall vest over four equal annual installments following November 4, 2025, subject to the Reporting Person's continued service on each such vesting date.

This option was granted in connection with the Reporting Person's promotion within the Company. The shares underlying this option shall vest and become exercisable over forty-eight equal monthly installments following November 4, 2025, subject to the Reporting Person's continued service on each such vesting date.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 9, 2025, subject to the Reporting Person's continued service on each such vesting date.

The shares underlying this option shall vest and become exercisable over twelve (12) equal monthly installments following June 6, 2025, subject to the Reporting Person's continued service on each such vesting date.