Silvaco Group, Inc.
A maker of software that lets engineers design, simulate, and test the semiconductor chips inside phones, cars, and medical devices, Silvaco provides chip-design (EDA) and process-simulation (TCAD) tools used across the electronics industry. Founded in 1984 by Dr. Ivan Pesic in Santa Clara, California, its name blends "Silicon Valley" and "Company," and its first product became an industry standard for modeling chip parameters.
Granted 362.8K · Bought 25.0K · Sold 1.19M
Granted 4.64M · Sold 421.0K
Granted 3.32M · Sold 320.8K
Granted 295.4K · Bought 25.0K
Granted 515.9K · Bought 20.1K · Sold 2.4K
Granted 222.0K · Bought 53.4K
Granted 12.5K · Sold 168
Granted 61.3K · Bought 24.2K
Granted 50.5K · Sold 25.0K
Granted 60.6K
Granted 45.6K
Granted 52.1K · Sold 17.1K
Granted 43.9K
Granted 43.4K
Granted 17.6K
Granted 17.6K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Ngai-Pesic Katherine S.Director, 10% owner · 17 transactions | — | 9.18M | 362.8K | 25.0K | 1.19M |
| Pesic Illiya I.Director, 10% owner · 9 transactions | — | 5.39M | 4.64M | — | 421.0K |
| Pesic Yelena I.Member of 10% owner group · 4 transactions | — | 3.60M | 3.32M | — | 320.8K |
| Taheri Babak A.Chief Executive Officer, Director · 12 transactions | — | 773.2Kas of Aug 2025 | 295.4K | 25.0K | — |
| Zegarelli Christopher JohnChief Financial Officer · 6 transactions | — | 537.0K | 515.9K | 20.1K | 2.4K |
| Rhines Walden CChief Executive Officer, Director · 7 transactions | — | 288.8K | 222.0K | 53.4K | — |
| Benton Ryan AChief Financial Officer · 5 transactions | — | 219.9Kas of Apr 2025 | 12.5K | — | 168 |
| Ngai Anthony K.K.Director · 15 transactions | — | 115.5K | 61.3K | 24.2K | — |
| Guichard EricSee Remarks · 8 transactions | — | 101.8Kas of Jul 2025 | 50.5K | — | 25.0K |
| Camposano RaulChief Technology Officer · 1 transaction | — | 67.9Kas of Nov 2024 | — | — | — |
| Ganti AnitaDirector · 5 transactions | — | 62.8K | 60.6K | — | — |
| Lee Hau L.Former Director · 4 transactions | — | 51.2K | 45.6K | — | — |
| Jackson CandaceSee Remarks · 13 transactions | — | 46.3K | 52.1K | — | 17.1K |
| Molloie William H. Jr.Former Director · 4 transactions | — | 36.0K | 43.9K | — | — |
| Shelton Jodi LynnFormer Director · 4 transactions | — | 35.6K | 43.4K | — | — |
| Bo-Linn CheeminDirector · 1 transaction | — | 17.6K | 17.6K | — | — |
| Tewksbury Ted L IIIDirector · 1 transaction | — | 17.6K | 17.6K | — | — |
Select a row to see that insider’s individual transactions.
Net open-market activity over the last 3 years: -1.83M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.