Ngai-Pesic Katherine S.

SEC source: 0001628280-26-056350 · wk-form4_1786569085.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,178,907

F1 · shares: The shares of Silvaco Group, Inc. (the "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 second quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.

SEC source: 0001628280-26-042621 · wk-form4_1781223360.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,176,403

F1 · price: 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.

SEC source: 0001628280-26-034672 · wk-form4_1778706254.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,376,403

F1 · shares: 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.

SEC source: 0001628280-26-027593 · wk-form4_1777323559.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,374,709

F1 · shares: 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.

SEC source: 0001628280-26-019944 · wk-form4_1773963057.xml · nonDerivative · entry 4

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,357,145

F3 · shares: 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.

SEC source: 0001628280-25-056375 · wk-form4_1765406317.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,303,886

F1 · price: 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.

SEC source: 0001628280-25-056078 · wk-form4_1765314944.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,278,886

F1 · price: Represents a bona fide gift transaction for no value.

SEC source: 0001628280-26-019944 · wk-form4_1773963057.xml · nonDerivative · entry 3

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,353,886

F1 · shares: 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.

F2 · price: 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.

SEC source: 0001628280-26-019944 · wk-form4_1773963057.xml · nonDerivative · entry 2

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,753,886

F1 · shares: 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.

F2 · price: 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.

SEC source: 0001628280-25-034057 · wk-form4_1751490285.xml · nonDerivative · entry 4

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,448,886

F1 · kind: Each transaction represents a bona fide gift transaction for no value. The Reporting Person initiated the gift transactions on June 13, 2025, and due to administrative processing, the gift transactions became irrevocable and were each completed on the transaction dates indicated in Table I.

SEC source: 0001628280-25-034057 · wk-form4_1751490285.xml · nonDerivative · entry 3

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,455,886

F1 · kind: Each transaction represents a bona fide gift transaction for no value. The Reporting Person initiated the gift transactions on June 13, 2025, and due to administrative processing, the gift transactions became irrevocable and were each completed on the transaction dates indicated in Table I.

SEC source: 0001628280-26-019944 · wk-form4_1773963057.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,053,886

F1 · shares: 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.

F2 · price: 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.

SEC source: 0001628280-25-034057 · wk-form4_1751490285.xml · nonDerivative · entry 2

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,459,805

F1 · kind: Each transaction represents a bona fide gift transaction for no value. The Reporting Person initiated the gift transactions on June 13, 2025, and due to administrative processing, the gift transactions became irrevocable and were each completed on the transaction dates indicated in Table I.

SEC source: 0001628280-25-034057 · wk-form4_1751490285.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,469,805

F1 · kind: Each transaction represents a bona fide gift transaction for no value. The Reporting Person initiated the gift transactions on June 13, 2025, and due to administrative processing, the gift transactions became irrevocable and were each completed on the transaction dates indicated in Table I.

SEC source: 0001628280-25-029456 · wk-form4_1749079305.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,477,355

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.86 to $4.95, 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.

SEC source: 0001628280-25-028015 · wk-form4_1748390274.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,492,355

F1 · shares: The restricted stock units shall fully vest on the earlier of the one-year anniversary of the grant date or the Issuer's 2026 annual meeting of stockholders.

SEC source: 0001628280-25-012888 · wk-form4_1741993062.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,461,105

F1 · shares: The shares reported in Column 4 were sold pursuant to the Reporting Person's 10b5-1 Plan dated December 12, 2024 (the "Plan"). Pursuant to the Plan, an aggregate of up to 180,000 additional shares may be sold if the price of the Issuer's stock reported on the Nasdaq Stock Market reaches certain prices ranging from $9.98 to $19.98.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.96 to $5.17, inclusive. The reporting person undertakes to provide to Silvaco Group, Inc. (the "Company"), any security holder of the Company, 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.

SEC source: 0001628280-24-034212 · wk-form4_1722546354.xml · nonDerivative · entry 1

Ngai-Pesic Katherine S. · CIK 0001992594 · Director · 10% owner · Member of 10% owner group

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,486,105

F1 · balance_after: On May 28, 2024, the term of the SMIK Grantor Retained Annuity Trust (the Trust) expired, and 308,991 shares of common stock of the Issuer were distributed to Ms. Pesic for no consideration.