SVCO · Silvaco Group, Inc.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.02 to $11.615, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 ranges set forth in this footnote.

Represents Restricted Stock Units ("RSUs") granted to the Reporting Person pursuant to that certain Employment Agreement, effective as of August 19, 2025 (the "Agreement"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on May 22, 2026, and will vest on March 31, 2027, provided that the vesting of the RSUs shall be accelerated in the event the Issuer terminates the Reporting Person's employment for any reason or the Reporting Person terminates his employment following a material breach of the Agreement by the Issuer which is not cured within 30 days after the Reporting Person provides written notice, in each case, prior to March 31, 2027.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainer earned in the first quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainer earned in the first quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainer earned in the first quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.

The amount of securities reported in Column 5 of the Reporting Person's Form 4 filed on May 22, 2025 erroneously excluded 7,858 restricted stock units awarded to the Reporting Person and reported on the Form 4 filed by the Reporting Person on July 11, 2024.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainer earned in the first quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.

The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2027 annual meeting of stockholders.

The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2027 annual meeting of stockholders.

The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2027 annual meeting of stockholders.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainers earned in the first quarter of fiscal 2026 and the second quarter of 2026 to date with an award of Issuer common stock with a fair market value equal to such quarterly cash retainers.

The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2027 annual meeting of stockholders.

The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2027 annual meeting of stockholders.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainers earned in the first quarter of fiscal 2026 and the second quarter of 2026 to date with an award of Issuer common stock with a fair market value equal to such quarterly cash retainers.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainers earned in the first quarter of fiscal 2026 and the second quarter of 2026 to date with an award of Issuer common stock with a fair market value equal to such quarterly cash retainers.

The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2027 annual meeting of stockholders.

Represents shares of common stock sold to satisfy certain tax withholding obligations associated with the vesting of restricted stock units. The sale was not at 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 $7.02 to $7.1724, 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 ranges set forth in this footnote.

In connection with the vesting of restricted stock units, the Reporting Person inadvertently sold shares to cover tax withholding obligations in a transaction that is matchable under Section 16(b) of the Securities Exchange Act of 1934 with 2,431 shares of common stock purchased by the reporting person at a price of $3.78 per share on December 8, 2025. The Reporting Person will promptly pay the Issuer $8,088.63, representing the full amount of the profit realized in connection with the short-swing transaction.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.03 to $7.16, 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 ranges set forth in this footnote.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan in lieu of the quarterly cash retainer for the fourth quarter of fiscal 2025, with a fair market value equal to such retainer.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.00 to $5.04, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 ranges set forth in this footnote.

Represents Restricted Stock Units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on March 2, 2026, with a vesting commencement date of January 1, 2026. One-sixteenth of the RSUs vest each quarter until fully vested on January 1, 2030.

Represents Restricted Stock Units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on March 2, 2026, with a vesting commencement date of January 1, 2026. One-sixteenth of the RSUs vest each quarter until fully vested on January 1, 2030.

Represents Restricted Stock Units ("RSUs") granted to the Reporting Person pursuant to that certain Employment Agreement, effective as of August 19, 2025 (the "Agreement"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on February 21, 2026, and will vest on March 31, 2027, provided that the vesting of the RSUs shall be accelerated in the event the Issuer terminates the Reporting Person's employment for any reason or the Reporting Person terminates his employment following a material breach of the Agreement by the Issuer which is not cured within 30 days after the Reporting Person provides written notice, in each case, prior to March 31, 2027.

The transactions reported in this Form 4 have been reported after the reporting deadlines because the Reporting Person initially believed each of the transactions constituted a non-reportable pledge of Issuer securities. The Reporting Person has subsequently determined to report the transactions based on the terms of the arrangement. The nature of the transactions is currently the subject of a dispute in an arbitral proceeding.

The reported price reflects the implied per-share value of shares transferred pursuant to an arrangement described as a non-recourse stock loan, in which the shares were transferred to the counterparty and the loan proceeds were limited to approximately 45% of the market value of the transferred shares, as determined under the terms of the arrangement, rather than a negotiated sale price.

Represents shares of common stock withheld by the Issuer to satisfy certain tax withholding obligations associated with the vesting of restricted stock units.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.04 to $4.20, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 purchased at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.00 to $4.05, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 purchased at each separate price within the ranges set forth in this footnote.

Represents a bona fide gift transaction for no value.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.78 to $3.81, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 purchased at each separate price within the ranges set forth in this footnote.

The transaction reported in this Form 4 has been reported after the reporting deadline because the Reporting Person initially believed the transaction constituted a non-reportable pledge of Issuer securities. The Reporting Person has subsequently determined to report the transaction based on the terms of the arrangement. The nature of the transaction is currently the subject of a dispute in an arbitral proceeding.

The reported price reflects the implied per-share value of shares transferred pursuant to an arrangement described as a non-recourse stock loan, in which the shares were transferred to the counterparty and the loan proceeds were limited to approximately 45% of the market value of the transferred shares, as determined under the terms of the arrangement, rather than a negotiated sale price.

The transactions reported in this Form 4 have been reported after the reporting deadlines because the Reporting Person initially believed each of the transactions constituted a non-reportable pledge of Issuer securities. The Reporting Person has subsequently determined to report the transactions based on the terms of the arrangement. The nature of the transactions is currently the subject of a dispute in an arbitral proceeding. Based on the reported transaction prices, the Reporting Person does not believe that any profit would be recoverable from any opposite-way transactions within six months under Section 16(b) of the Exchange Act.

The reported price reflects the implied per-share value of shares transferred pursuant to an arrangement described as a non-recourse stock loan, in which the shares were transferred to the counterparty and the loan proceeds were limited to approximately 45% of the market value of the transferred shares, as determined under the terms of the arrangement, rather than a negotiated sale price.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.00 to $4.18, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 ranges set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.88 to $4.00, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (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 ranges set forth in this footnote.

The transactions reported in this Form 4 have been reported after the reporting deadlines because the Reporting Person initially believed each of the transactions constituted a non-reportable pledge of Issuer securities. The Reporting Person has subsequently determined to report the transactions based on the terms of the arrangement. The nature of the transactions is currently the subject of a dispute in an arbitral proceeding.

The reported price reflects the implied per-share value of shares transferred pursuant to an arrangement described as a non-recourse stock loan, in which the shares were transferred to the counterparty and the loan proceeds were limited to approximately 45% of the market value of the transferred shares, as determined under the terms of the arrangement, rather than a negotiated sale price.

Represents Restricted Stock Units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on October 1, 2025, and 25% of the RSUs shall vest on the first anniversary of the grant date, while the remaining RSUs shall vest in twelve equal quarterly installments until fully vested on October 1, 2029.