According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Silvaco are Director Katherine S. Ngai-Pesic (10.30Mn shares), Other Illiya I. Pesic (5.78Mn shares), Other Yelena I. Pesic (3.90Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Katherine S. Ngai-Pesic | 10,303,886 | 10 Dec, 2025 | |
| Illiya I. Pesic | 5,779,899 | 27 May, 2025 | |
| Yelena I. Pesic | 3,903,073 | 12 Jun, 2025 | |
| Babak A. Taheri | Chief Executive Officer | 773,157 | 14 Aug, 2025 |
| Christopher John Zegarelli | Chief Financial Officer | 439,407 | 08 Dec, 2025 |
| Ryan A Benton | Chief Financial Officer | 219,940 | 10 Apr, 2025 |
| Walden C Rhines | Chief Executive Officer | 105,918 | 09 Dec, 2025 |
| Eric Guichard | Nan | 101,812 | 02 Jul, 2025 |
| Anthony K.K. Ngai | 91,777 | 15 Dec, 2025 | |
| Raul Camposano | Chief Technology Officer | 67,859 | 07 Nov, 2024 |
| Hau L. Lee | 44,688 | 27 May, 2025 | |
| Candace Jackson | Nan | 41,666 | 05 Jan, 2026 |
| Anita Ganti | 33,469 | 27 May, 2025 | |
| William H. Jr. Molloie | 31,250 | 27 May, 2025 | |
| Jodi Lynn Shelton | 31,250 | 27 May, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Jan, 2026 | Candace Jackson | Common Stock | D | 1,403 | $4.05 | 41,666 | D | F |
| 11 Dec, 2025 | Anthony K.K. Ngai | Common Stock | A | 1,000 | $4.23 | 91,777 | D | P |
| 10 Dec, 2025 | Katherine S. Ngai-Pesic | Common Stock | A | 25,000 | $4.13 | 10,303,886 | D | P |
| 09 Dec, 2025 | Walden C Rhines | Common Stock | A | 13,100 | $4.01 | 105,918 | D | P |
| 09 Dec, 2025 | Katherine S. Ngai-Pesic | Common Stock | D | 170,000 | $0.00 | 10,278,886 | D | G |
| 09 Dec, 2025 | Katherine S. Ngai-Pesic | - | - | 10,278,886 | D | |||
| 08 Dec, 2025 | Christopher John Zegarelli | Common Stock | A | 10,000 | $3.80 | 439,407 | D | P |
| 19 Nov, 2025 | Candace Jackson | Common Stock | D | 8,300 | $4.25 | 43,069 | D | S |
| 18 Nov, 2025 | Walden C Rhines | Common Stock | A | 29,000 | $4.07 | 92,818 | D | P |
| 18 Nov, 2025 | Anthony K.K. Ngai | - | - | 90,777 | D | |||
| 18 Nov, 2025 | Anthony K.K. Ngai | Common Stock | A | 10,000 | $4.26 | 90,777 | D | P |
| 17 Nov, 2025 | Walden C Rhines | Common Stock | A | 11,272 | $3.90 | 63,818 | D | P |
| 17 Nov, 2025 | Christopher John Zegarelli | - | - | 429,407 | D | |||
| 17 Nov, 2025 | Christopher John Zegarelli | Common Stock | A | 5,000 | $3.91 | 429,407 | D | P |
| 01 Oct, 2025 | Candace Jackson | Common Stock | D | 2,510 | $5.44 | 51,369 | D | F |
| 01 Oct, 2025 | Christopher John Zegarelli | Common Stock | A | 415,914 | $0.00 | 424,407 | D | A |
| 15 Sep, 2025 | Christopher John Zegarelli | Common Stock | A | 5,100 | $5.03 | 8,493 | D | P |
| 11 Sep, 2025 | Anthony K.K. Ngai | Common Stock | A | 2,000 | $5.16 | 80,777 | D | P |
| 10 Sep, 2025 | Anthony K.K. Ngai | Common Stock | A | 500 | $5.28 | 78,577 | D | P |
| 10 Sep, 2025 | Anthony K.K. Ngai | Common Stock | A | 2,000 | $5.34 | 78,077 | D | P |