Silvaco Group (SVCO) stock: insider trades, news & valuation
Strong buyingShare price and insider trades
Silvaco Group insider trading at a glance (Oct 9, 2026): in the past 12 months, 4 insiders bought $431K and 7 sold $5.9M of SVCO stock on the open market, including a cluster buy that began Dec 8, 2025.
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SVCO insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | $6K | 1 | $63K | 5 |
| Q2 2026 | $19K | 2 | $2.4M | 5 |
| Q1 2026 | — | 0 | $202K | 2 |
| Q4 2025 | $422K | 8 | $2.0M | 4 |
| Q3 2025 | $26K | 1 | $678K | 1 |
| Q2 2025 | — | 0 | $538K | 1 |
Valuation, profit and volume
Summary
Over the past 12 months, 4 Silvaco Group, Inc. insiders reported open-market purchases totaling $431K, while 7 insiders reported sales totaling $5.9M. The most recent cluster buy began on Dec 8, 2025, when 3 insiders bought a combined $194K. Among insiders with enough purchase history to measure, Walden C Rhines (CEO) has the highest Insider Score at 18. 2 of 18 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Aug 26SEC | Candace JacksonSee Remarks | Sell | 3,50046,279 held (−7%) | $7.00 | $24K | +16.1% | — |
| Aug 13SEC | Christopher John ZegarelliCFO | Sell | 2,257540,324 held (−0%) | $7.55 | $17K | +7.6% | 18 |
| Aug 13SEC | Candace JacksonSee Remarks | Sell | 1,57049,779 held (−3%) | $7.55 | $12K | +7.6% | — |
| Aug 12SEC | Anthony K.k. NgaiDirector | Buy | 750118,972 held (+1%) | $7.37 | $6K | +10.2% | 9 |
| Aug 12SEC | Cheemin Bo-linnDirector | Sell Plan | 70018,264 held (−4%) | $7.28 | $5K | +11.6% | — |
| Aug 12SEC | Ted L Tewksbury IIIDirector | Sell Plan | 58018,143 held (−3%) | $7.28 | $4K | +11.6% | — |
| Jun 18SEC | Anthony K.k. NgaiDirector | Buy | 500115,476 held (+0%) | $12.50 | $6K | -35.0% | 9 |
| Jun 11SEC | Katherine S. Ngai-pesicDirector | Sell | 200,0009,176,403 held (−2%) | $11.27 | $2.3M | -27.9% | — |
| Jun 8SEC | Anthony K.k. NgaiDirector | Buy | 1,000114,976 held (+1%) | $13.07 | $13K | -37.8% | 9 |
| Jun 5SEC | Illiya I. PesicDirector | Sell | 6,0005,394,672 held (−0%) | $12.96 | $78K | -37.3% | — |
| May 14SEC | Candace JacksonSee Remarks | Sell | 2,00051,349 held (−4%) | $11.00 | $22K | -26.1% | — |
| Apr 3SEC | Christopher John ZegarelliCFO | Sell | 2,431536,976 held (−0%) | $7.11 | $17K | +14.3% | 18 |
| Apr 3SEC | Candace JacksonSee Remarks | Sell | 1,81753,349 held (−3%) | $7.12 | $13K | +14.1% | — |
| Mar 19SEC | Katherine S. Ngai-pesicMember Of 10% Owner Group | Sell | 400,0009,353,886 held (−4%) | $2.00 | $800K | +306.2% | — |
| Mar 19SEC | Katherine S. Ngai-pesicMember Of 10% Owner Group | Sell | 300,0009,753,886 held (−3%) | $2.26 | $678K | +259.5% | — |
| Mar 19SEC | Yelena I. PesicMember Of 10% Owner Group | Sell | 300,0003,603,073 held (−8%) | $1.99 | $597K | +308.3% | — |
| Mar 19SEC | Illiya I. PesicMember Of 10% Owner Group | Sell | 300,0005,479,899 held (−5%) | $1.93 | $579K | +321.0% | — |
| Mar 19SEC | Katherine S. Ngai-pesicMember Of 10% Owner Group | Sell | 250,00010,053,886 held (−2%) | $2.15 | $538K | +277.9% | — |
| Mar 19SEC | Illiya I. PesicMember Of 10% Owner Group | Sell | 100,0005,379,899 held (−2%) | $1.94 | $194K | +318.8% | — |
| Mar 19SEC | Candace JacksonSee Remarks | Sell | 1,50055,166 held (−3%) | $5.00 | $8K | +62.5% | — |
| Dec 15SEC | Anthony K.k. NgaiDirector | Buy | 1,00091,777 held (+1%) | $4.23 | $4K | +92.1% | 9 |
| Dec 10SEC | Katherine S. Ngai-pesicMember Of 10% Owner Group | Buy | 25,00010,303,886 held (+0%) | $4.13 | $103K | +96.7% | — |
| Dec 9SEC | Walden C RhinesCEO | Buy | 13,100105,918 held (+14%) | $4.01 | $53K | +102.6% | 18 |
| Dec 8SEC | Christopher John ZegarelliCFO | Buy | 10,000439,407 held (+2%) | $3.80 | $38K | +113.8% | 18 |
| Nov 20SEC | Anthony K.k. NgaiDirector | Buy | 10,00090,777 held (+12%) | $4.26 | $43K | +90.7% | 9 |
| Nov 19SEC | Walden C RhinesCEO | Buy | 29,00092,818 held (+45%) | $4.07 | $118K | +99.6% | 18 |
| Nov 19SEC | Candace JacksonSee Remarks | Sell | 8,30043,069 held (−16%) | $4.25 | $35K | +91.2% | — |
| Nov 18SEC | Walden C RhinesCEO | Buy | 11,27263,818 held (+21%) | $3.90 | $44K | +108.3% | 18 |
| Nov 18SEC | Christopher John ZegarelliCFO | Buy | 5,000429,407 held (+1%) | $3.91 | $20K | +107.8% | 18 |
| Oct 8SEC | Christopher John ZegarelliCFO | Buy | 5,1008,493 held (+150%) | $5.03 | $26K | +61.5% | 18 |
Insiders at Silvaco Group, Inc.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Katherine S. Ngai-pesicDirector | $103K | $4.3M | Jun 11, 2026 | — |
| Illiya I. PesicDirector | — | $851K | Jun 5, 2026 | — |
| Walden C RhinesCEO | $215K | — | Dec 9, 2025 | 18 |
| Yelena I. PesicMember Of 10% Owner Group | — | $597K | Mar 19, 2026 | — |
| Christopher John ZegarelliCFO | $83K | $34K | Aug 13, 2026 | 18 |
| Anthony K.k. NgaiDirector | $72K | — | Aug 12, 2026 | 9 |
| Candace JacksonSee Remarks | — | $114K | Aug 26, 2026 | — |
| Cheemin Bo-linnDirector | — | $5K | Aug 12, 2026 | — |
| Ted L Tewksbury IIIDirector | — | $4K | Aug 12, 2026 | — |
SVCO stock: common questions
Are Silvaco Group, Inc. insiders buying SVCO stock?
In the past 12 months, 4 insiders reported open-market purchases of SVCO worth $431K. The latest was Director Anthony K.k. Ngai bought $6K of SVCO at $7.37.
Are Silvaco Group, Inc. insiders selling SVCO stock?
7 insiders reported sales worth $5.9M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is SVCO's 52-week range?
Over the past year SVCO has traded between $3.23 and $13.79. It last closed at $8.12 on Oct 9, 2026.