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sellWeak cluster of 210b5-1 plan

Gregory Stephen Smith sold $223k of TER

President and CEO at TERADYNE, INC. 1,108 shares at an average of $201.31, traded Dec 12, 2025, filed Dec 15, 2025.

Warning score
25
Value
$223k
1,108 shares
Holdings after
93,409
-1% from before
From 52-week low
+185%
low $67.66, close $193.14
From 52-week high
-5%
high $203.77, as of Dec 12, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $223k at market
    +12
  • Share of holdings sold
    Sold 1.2% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

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.

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.

TEROct 9, 2026 · close 402.68
Since filing Dec 15, 2025: +107.1%SPY +15.6% · excess +91.5%

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 0000904454-25-000632, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 12, 2025SOpen-market sale
Common Stock10b5-1
-1,108$201.31$223k93,409Dec 15, 2025

Related signals

Other insiders at TERADYNE, INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
11Weak
TERsell 210b5-1
TERADYNE, INC
Mercedes Johnson
director
$67k
167 shares
-3%
21Weak
TERsell 310b5-1
TERADYNE, INC
Marilyn Matz
director
$140k
400 shares
-3%
23Weak
TERsell 310b5-1
TERADYNE, INC
Marilyn Matz
director
$270k
800 shares
-5%
45Moderate
TERsell 310b5-1
TERADYNE, INC
Gregory Stephen Smith
President and CEO
$1.4M
4,000 shares
-4%
17Weak
TERsell 310b5-1
TERADYNE, INC
Mercedes Johnson
director
$57k
167 shares
-3%
13Weak
TERsell 210b5-1
TERADYNE, INC
Mercedes Johnson
director
$125k
625 shares
-7%
25Weak
TERsell 210b5-1
TERADYNE, INC
Gregory Stephen Smith
President and CEO
$200k
1,108 shares
-1%
13Weak
TERsell 210b5-1
TERADYNE, INC
Mercedes Johnson
director
$111k
625 shares
-6%
24Weak
TERsell 210b5-1
TERADYNE, INC
Gregory Stephen Smith
President and CEO
$161k
1,108 shares
-1%
12Weak
TERsell 210b5-1
TERADYNE, INC
Mercedes Johnson
director
$92k
625 shares
-6%

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.

Gregory Stephen Smith sold $223k of TER | InsiderTell