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buyNotable cluster of 3

Walden C Rhines bought $44k of SVCO

Chief Executive Officer at Silvaco Group, Inc.. 11,272 shares at an average of $3.90, traded Nov 17, 2025, filed Nov 18, 2025.

Conviction score
70
Value
$44k
11,272 shares
Holdings after
63,818
+21% from before
From 52-week low
+6%
low $3.77, close $4.01
From 52-week high
-59%
high $9.80, as of Nov 17, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $44k at market
    +6
  • Relative to holdings
    Holdings up 21%
    +6
  • Price context
    6% above the 52-week low; 59% below the 52-week high
    +18
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +8.5%, 3m -12.0%, 6m +130.9%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

SVCOOct 9, 2026 · close 8.13
Since filing Nov 18, 2025: +102.6%SPY +19.2% · excess +83.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001628280-25-052862, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 17, 2025POpen-market purchase
Common Stock
+11,272$3.90$44k63,818Nov 18, 2025

Related signals

Other insiders at Silvaco Group, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
SVCOsell 4
Silvaco Group, Inc.
Candace Jackson
See Remarks
$25k
3,500 shares
-7%
30Weak
SVCOsell 4
Silvaco Group, Inc.
Candace Jackson
See Remarks
$12k
1,570 shares
-3%
37Weak
SVCOsell 4
Silvaco Group, Inc.
Christopher John Zegarelli
Chief Financial Officer
$17k
2,257 shares
-0%
10Weak
SVCOsell 410b5-1
Silvaco Group, Inc.
Cheemin Bo-Linn
director
$5,093
700 shares
-4%
33Weak
SVCObuy
Silvaco Group, Inc.
Anthony K.K. Ngai
director
$5,528
750 shares
+1%
10Weak
SVCOsell 410b5-1
Silvaco Group, Inc.
Ted L Tewksbury III
director
$4,220
580 shares
-3%
25Weak
SVCObuy
Silvaco Group, Inc.
Anthony K.K. Ngai
director
$6,250
500 shares
+0%
48Moderate
SVCOsell 2
Silvaco Group, Inc.
Katherine S. Ngai-Pesic
director, owner
$2.3M
200,000 shares
-2%
20Weak
SVCObuy
Silvaco Group, Inc.
Anthony K.K. Ngai
director
$13k
1,000 shares
+1%
32Weak
SVCOsell 2
Silvaco Group, Inc.
Illiya I. Pesic
director, owner
$78k
6,000 shares
-0%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Walden C Rhines bought $44k of SVCO | InsiderTell