Massivemarkets

SEC Form 4

Silvaco Group, Inc. (SVCO) insider trading

In the 12 months to Nov 12, 2026, 7 SVCO insiders reported open-market sales of $5.9M across 14 filings; 4 insiders bought $447.1K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$5.9M
14 filings · 7 insiders
Open-market purchases
$447.1K
11 filings
Pre-arranged sales (10b5-1)
2 of 14
$9.3K of $5.9M sold (0%)

Who traded SVCO, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

SVCO daily close from Nov 12, 2025 to Nov 11, 2026, between $3.23 and $13.79, last $7.66. 14 sale and 11 purchase filings by 9 insiders, marked at their filing dates. Katherine S. Ngai-Pesic, Director: sold $4.3M and bought $103.3K across 3 filings, first filed Dec 10, 2025, last Jun 11, 2026. Illiya I. Pesic, Other → Director: sold $850.5K across 2 filings, first filed Mar 19, 2026, last Jun 5, 2026. Yelena I. Pesic, Other: sold $597.0K across 1 filing, first filed Mar 19, 2026, last Mar 19, 2026. Walden C. Rhines, Chief Executive Officer: bought $214.6K across 3 filings, first filed Nov 18, 2025, last Dec 9, 2025. Candace Jackson, Officer (see filing): sold $114.1K across 6 filings, first filed Nov 19, 2025, last Aug 26, 2026. Christopher John Zegarelli, Chief Financial Officer: sold $17.0K and bought $57.5K across 3 filings, first filed Nov 18, 2025, last Aug 13, 2026. Anthony K.K. Ngai, Director: bought $71.6K across 5 filings, first filed Nov 20, 2025, last Aug 12, 2026. 2 others: sold $9.3K across 2 filings, first filed Aug 12, 2026, last Aug 12, 2026.

Largest mark · tap a row for others

Katherine S. Ngai-Pesic · Director

Sale $2,254,320

200,000 shares at $11.27 avg

Filed Jun 11, 2026

Close on filing date $11.47

SVCO daily closelast $7.66

Katherine S. Ngai-Pesic · Director

$4.3M sold$103.3K bought

Illiya I. Pesic · Other → Director

$850.5K sold

Yelena I. Pesic · Other

$597.0K sold

Walden C. Rhines · Chief Executive Officer

$214.6K bought

Candace Jackson · Officer (see filing)

$114.1K sold

Christopher John Zegarelli · Chief Financial Officer

$17.0K sold$57.5K bought

Anthony K.K. Ngai · Director

$71.6K bought

2 others

$9.3K sold
One row per insider, smaller filers combined; marks sit at the SEC filing date, sized by dollar value.

Open-market trades

25 filings in the last 12 months
Other insider activity (not market trades) · 34 records
  • Tax withholding1 record
  • Tax withholding (sold to cover)1 record
  • Grants and awards31 records
  • Gifts1 record

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Role
The title on each filing. Someone whose title changed shows more than one.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.

Frequently asked questions

Has Silvaco Group, Inc.'s CEO sold stock?

No. Walden C. Rhines (CEO) made no open-market sales filed as CEO in the last 12 months.

How current is SVCO’s insider data?

These are SVCO Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.

What counts as an open-market buy or sell?

Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.

Build with AI

Track SVCO insider trades with your agent

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SVCO every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

Live market data from the Massive API and MCP.Get a free API key

Nothing on this page is investment advice. All data and content is provided for informational purposes under our Terms of Service.