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sellWeak cluster of 210b5-1 plan

Mercedes Johnson sold $92k of TER

director at TERADYNE, INC. 625 shares at an average of $147.90, traded Oct 6, 2025, filed Oct 8, 2025.

Warning score
12
Value
$92k
625 shares
Holdings after
10,113
-6% from before
From 52-week low
+118%
low $67.66, close $147.58
From 52-week high
0%
high $147.58, as of Oct 6, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $92k at market
    +9
  • Share of holdings sold
    Sold 5.8% 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 Oct 8, 2025: +179.0%SPY +16.9% · excess +162.1%

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 0000904454-25-000477, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 6, 2025SOpen-market sale
Common Stock10b5-1
-625$147.90$92k10,113Oct 8, 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%
25Weak
TERsell 210b5-1
TERADYNE, INC
Gregory Stephen Smith
President and CEO
$223k
1,108 shares
-1%
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%

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.

Mercedes Johnson sold $92k of TER | InsiderTell