Silvaco's three largest insider shareholders as of September 05, 2026 are Katherine S. Ngai-Pesic (Director, 9.18Mn shares), Illiya I. Pesic (Director, 5.40Mn shares), Yelena I. Pesic (Other, 3.90Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Katherine S. Ngai-Pesic | Director, TenPercentOwner | 9,178,907 | 0 | 9,178,907 | 43.5% | 12 Aug, 2026 |
| 2 | Illiya I. Pesic | Director, TenPercentOwner | 5,396,081 | 0 | 5,396,081 | 25.6% | 12 Aug, 2026 |
| 3 | Yelena I. Pesic | Other | 3,903,073 | 0 | 3,903,073 | 18.5% | 12 Jun, 2025 |
| 4 | Babak A. Taheri | Chief Executive Officer | 773,157 | 0 | 773,157 | 3.7% | 14 Aug, 2025 |
| 5 | Christopher John Zegarelli | Chief Financial Officer | 540,324 | 0 | 540,324 | 2.6% | 13 Aug, 2026 |
| 6 | Walden C Rhines | Chief Executive Officer | 539,209 | 0 | 539,209 | 2.6% | 01 Sep, 2026 |
| 7 | Ryan A Benton | Chief Financial Officer | 219,940 | 0 | 219,940 | 1.0% | 10 Apr, 2025 |
| 8 | Anthony K.K. Ngai | Director | 118,972 | 0 | 118,972 | 0.6% | 12 Aug, 2026 |
| 9 | Eric Guichard | Officer | 101,812 | 0 | 101,812 | 0.5% | 02 Jul, 2025 |
| 10 | Raul Camposano | Chief Technology Officer | 67,859 | 0 | 67,859 | 0.3% | 07 Nov, 2024 |
| 11 | Anita Ganti | Director | 64,534 | 0 | 64,534 | 0.3% | 12 Aug, 2026 |
| 12 | Hau L. Lee | Other | 51,174 | 0 | 51,174 | 0.2% | 27 Apr, 2026 |
| 13 | Candace Jackson | Officer | 46,279 | 0 | 46,279 | 0.2% | 26 Aug, 2026 |
| 14 | William H. Jr. Molloie | Other | 36,006 | 0 | 36,006 | 0.2% | 27 Apr, 2026 |
| 15 | Jodi Lynn Shelton | Other | 35,574 | 0 | 35,574 | 0.2% | 27 Apr, 2026 |
| 16 | Cheemin Bo-Linn | Director | 17,564 | 0 | 17,564 | 0.1% | 27 Apr, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 29 Aug, 2026 | Walden C Rhines | Chief Executive Officer | Acquired A | 250,376 | $0.00 | $0 | 539,209 | Direct |
| 25 Aug, 2026 | Candace Jackson | Officer | Disposed S | 3,500 | $7.00 | $24.50K | 46,279 | Direct |
| 12 Aug, 2026 | Christopher John Zegarelli | Chief Financial Officer | Disposed S | 2,257 | $7.55 | $17.04K | 540,324 | Direct |
| 12 Aug, 2026 | Candace Jackson | Officer | Disposed S | 1,570 | $7.55 | $11.86K | 49,779 | Direct |
| 11 Aug, 2026 | Cheemin Bo-Linn | Director | Acquired A | 1,400 | $0.00 | $0 | 18,964 | Direct |
| 11 Aug, 2026 | Anita Ganti | Director | Acquired A | 1,721 | $0.00 | $0 | 64,534 | Direct |
| 11 Aug, 2026 | Katherine S. Ngai-Pesic | Director, TenPercentOwner | Acquired A | 2,504 | $0.00 | $0 | 9,178,907 | Direct |
| 11 Aug, 2026 | Ted L Iii Tewksbury | Director | Acquired A | 1,159 | $0.00 | $0 | 18,723 | Direct |
| 11 Aug, 2026 | Anthony K.K. Ngai | Director | Acquired A | 2,746 | $0.00 | $0 | 118,222 | Direct |
| 11 Aug, 2026 | Illiya I. Pesic | Director, TenPercentOwner | Acquired A | 1,409 | $0.00 | $0 | 5,396,081 | Direct |
| 11 Aug, 2026 | Ted L Iii Tewksbury | Director | Disposed S | 580 | $7.28 | $4.22K | 18,143 | Direct |
| 11 Aug, 2026 | Anthony K.K. Ngai | Director | Acquired P | 750 | $7.37 | $5.53K | 118,972 | Direct |
| 11 Aug, 2026 | Cheemin Bo-Linn | Director | Disposed S | 700 | $7.28 | $5.09K | 18,264 | Direct |
| 16 Jun, 2026 | Anthony K.K. Ngai | Director | Acquired P | 500 | $12.50 | $6.25K | 115,476 | Direct |
| 11 Jun, 2026 | Katherine S. Ngai-Pesic | Director, TenPercentOwner | Disposed S | 200,000 | $11.27 | $2.25Mn | 9,176,403 | Direct |
| 05 Jun, 2026 | Anthony K.K. Ngai | Director | Acquired P | 1,000 | $13.07 | $13.07K | 114,976 | Direct |
| 03 Jun, 2026 | Illiya I. Pesic | Director, TenPercentOwner | Disposed S | 6,000 | $12.96 | $77.73K | 5,394,672 | Direct |
| 22 May, 2026 | Walden C Rhines | Chief Executive Officer | Acquired A | 154,745 | $0.00 | $0 | 288,833 | Direct |
| 14 May, 2026 | Candace Jackson | Officer | Disposed S | 2,000 | $11.00 | $22.00K | 51,349 | Direct |
| 12 May, 2026 | Katherine S. Ngai-Pesic | Director, TenPercentOwner | Acquired A | 1,694 | $0.00 | $0 | 9,376,403 | Direct |