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Stock brief · the live tape
TERTeradyne, Inc.
Information Technology
$354.97
▲ $35.56 (+11.1%) · 30dclose Friday, August 28, 2026
Disclosed flow is mixed.
4 members · 9 disclosed trades · 36 insider filings
The Hill
▲ 4▼ 5
4 buys · 5 sellsThe Boardroom
▲ 16▼ 20
16 buys · 20 sells · 36 filingsFeeding Time13F lens lands with fund ingestion
What is behind it
Recent Signal Scores, decayed44
Events counted, 90d19
Net congressional flowmixed
The tape
Price with a twin dot per disclosed trade: filled at the trade, hollow at the filing. The dashed gap is what the market did in between, not anyone’s return.
trade (congress)filingtrade (insider)call legput leg
The cost of chasing
Each rail runs from their trade to their filing. The hatched part is the move a copier missed to the disclosure lag; the solid part is what copying at the filing kept.
Armstrong+20.1-5.1
McClain+95.3+123.4
McClain+100.7+123.4
McClain+100.7+123.4
McClain+310.7+211.3
Johnson+329.7+321.2
Johnson+235.6+380.6
Johnson+218.2+309.2
Median copy kept +167.4% from the filing vs +159.5% from the trade date; the lag took -7.9 pts. The S&P returned +18.0% over the same windows. Numbers describe the window shown; they are not a forecast.
Who is behind it
Congress members with a disclosed position, biggest first. Click through to their dossier.
Lisa C. McClainHouse · Financial Services · Education & WorkforceFiled this one in 21dmixed$32KJulie JohnsonHouse · Joint Committee of Congress on the Library · Homeland SecurityFiled this one in 43dmixed$24KTommy TubervilleSenate · Agriculture, Nutrition & Forestry · Armed ServicesFiled this one in 824dsold$8KAlan ArmstrongSenate · Health, Education, Labor & Pensions · Indian AffairsFiled this one in 116dbought$8K
Committee overlap is a fact, not an accusation. An option leg behind a share buy reads very differently from a plain purchase, so it is called out but never scored as intent.
The boardroom
Scheduled 10b5-1 sales are usually noise, set on autopilot months ago. The unscheduled ones are the tell.
Smith Gregory StephenPresident and CEO, DirectorScheduled · 10b5-1
MATZ MARILYNDirectorScheduled · 10b5-1
JOHNSON MERCEDESDirectorScheduled · 10b5-1
Smith Gregory StephenPresident and CEO, DirectorScheduled · 10b5-1
MATZ MARILYNDirectorScheduled · 10b5-1
JOHNSON MERCEDESDirectorScheduled · 10b5-1
TUFANO PAUL JDirectorUnscheduled
Henry Andrew ChisholmDirectorUnscheduled
Herweck PeterDirectorUnscheduled
MATZ MARILYNDirectorScheduled · 10b5-1
Smith Gregory StephenPresident and CEO, DirectorScheduled · 10b5-1
MADDOCK ERNEST EDirectorUnscheduled
TUFANO PAUL JDirectorUnscheduled
Herweck PeterDirectorUnscheduled
Hathout Jean PierrePresident, Teradyne RoboticsUnscheduled
JOHNSON MERCEDESDirectorScheduled · 10b5-1
Hathout Jean PierrePresident, Teradyne RoboticsUnscheduled
Poulin Shannon JohnPresident, Semiconductor TestScheduled · 10b5-1
Poulin Shannon JohnPresident, Semiconductor TestScheduled · 10b5-1
MATZ MARILYNDirectorScheduled · 10b5-1
Poulin Shannon JohnPresident, Semiconductor TestScheduled · 10b5-1
Poulin Shannon JohnPresident, Semiconductor TestUnscheduled
Poulin Shannon JohnPresident, Semiconductor TestScheduled · 10b5-1
Smith Gregory StephenPresident and CEO, DirectorScheduled · 10b5-1
Smith Gregory StephenPresident and CEO, DirectorScheduled · 10b5-1
Smith Gregory StephenPresident and CEO, DirectorScheduled · 10b5-1
MATZ MARILYNDirectorScheduled · 10b5-1
Herweck PeterDirectorUnscheduled
JOHNSON MERCEDESDirectorUnscheduled
MATZ MARILYNDirectorUnscheduled
van Kralingen Bridget ADirectorUnscheduled
TUFANO PAUL JDirectorUnscheduled
Sayiner NecipDirectorUnscheduled
MADDOCK ERNEST EDirectorUnscheduled
Henry Andrew ChisholmDirectorUnscheduled
Driscoll RyanVP, General Counsel, SecretaryScheduled · 10b5-1
The forward book
Every disclosed option leg on this ticker: what was filed, and where the strike sits versus today.
No disclosed option legs on TER yet. They plot here the day they file.
A call and a put are shown as filed. We do not infer whether a leg is a hedge or a leveraged bet, because the filing does not say. Read the strike and expiry, not an implied intent.
The fund book
Tracked 13F holders and how their position moved, quarter over quarter.
13F fund positions on TER light up when fund ingestion lands. Quarter-end marks, up to 45 days lagged, never live holdings.
Cross-check
When different sources file on the same name inside a window. Overlap like this is rare.
- Tommy TubervilleSenate · Agriculture, Nutrition & Forestry · Armed Services▼
- Alan ArmstrongSenate · Health, Education, Labor & Pensions · Indian Affairs▲
- Smith Gregory StephenPresident and CEO, Director▼
- MATZ MARILYNDirector▼
- JOHNSON MERCEDESDirector▼
- TUFANO PAUL JDirector▲
Last 90 days · 6 filers converging
Sources file on different clocks; an overlap like this is rare.
⚠️ Public information, sourced from STOCK Act, Form 4 and 13F filings. Ranges use midpoints. Price paths between a trade and its filing are market moves, not anyone’s return. Not financial advice.