Stocks › TER
TERADYNE, INC
TER·Nasdaq·
United States·USD
United States·USD$430.32
-14.21 (-3.20%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
TER
TERADYNE, INC · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
TERS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of TER by members of U.S. Congress · 37 on record · 7 in the last 12 months
Whale Activity
Position changes in TER reported for 2026-09-30 by 3 tracked institutional filers
- Increased0
- New0
- Held0
- Decreased0
- Closed0
- No prior filing3
| Filer | Shares | Value | Change |
|---|---|---|---|
| GoalVest Advisory LLC | 8,890 | $3.6M | — |
| Norman Fields, Gottscho Capital Management, LLC | 4,700 | $1.9M | — |
| Silverleafe Capital Partners, LLC | 2,417 | $969K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by TER insiders, by quarter · Form 4
Recent Insider Transactions
2,187 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| JOHNSON MERCEDESDirector · Director | Sale | −167 | $402.90 | $67K | Oct 1, 2026 | Form 4 ↗ |
| MATZ MARILYNDirector · Director | Sale | −400 | $351.11 | $140K | Sep 17, 2026 | Form 4 ↗ |
| Smith Gregory StephenPresident and CEO · Director | Sale | −4,000 | $337.83 | $1.4M | Sep 15, 2026 | Form 4 ↗ |
| MATZ MARILYNDirector · Director | Sale | −800 | $337.83 | $270K | Sep 15, 2026 | Form 4 ↗ |
| JOHNSON MERCEDESDirector · Director | Sale | −167 | $341.30 | $57K | Sep 1, 2026 | Form 4 ↗ |
| Smith Gregory StephenPresident and CEO · Director | Sale | −4,000 | $425.00 | $1.7M | Aug 17, 2026 | Form 4 ↗ |
| MATZ MARILYNDirector · Director | Sale | −1,200 | $425.00 | $510K | Aug 17, 2026 | Form 4 ↗ |
| JOHNSON MERCEDESDirector · Director | Sale | −166 | $358.15 | $59K | Aug 3, 2026 | Form 4 ↗ |
| Smith Gregory StephenPresident and CEO · Director | Sale | −4,000 | $356.31 | $1.4M | Jul 15, 2026 | Form 4 ↗ |
| MATZ MARILYNDirector · Director | Sale | −1,200 | $356.31 | $428K | Jul 15, 2026 | Form 4 ↗ |
| JOHNSON MERCEDESDirector · Director | Sale | −167 | $460.00 | $77K | Jul 1, 2026 | Form 4 ↗ |
| TUFANO PAUL JDirector | Grant / award | +116 | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Henry Andrew ChisholmDirector | Grant / award | +52 | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Herweck PeterDirector | Grant / award | +63 | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| MATZ MARILYNDirector | Sale | −1,200 | $423.03 | $508K | Jun 15, 2026 | Form 4 ↗ |
| Smith Gregory StephenPresident and CEO · Director | Sale | −4,000 | $423.03 | $1.7M | Jun 15, 2026 | Form 4 ↗ |
| MADDOCK ERNEST EDirector | Other | +2 | $0.00 | $0 | Jun 12, 2026 | Form 4 ↗ |
| Herweck PeterDirector | Other | +4 | $0.00 | $0 | Jun 12, 2026 | Form 4 ↗ |
| TUFANO PAUL JDirector | Other | +19 | $0.00 | $0 | Jun 12, 2026 | Form 4 ↗ |
| Hathout Jean PierrePresident, Teradyne Robotics | Tax withholding | −174 | $392.62 | $68K | Jun 2, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding TER · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 5.0M | $2.40B | 0.10% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 4.1M | $1.96B | 0.12% | Jun 30, 2026 |
| VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS | 3.4M | $1.64B | 0.73% | Jun 30, 2026 |
| iShares Semiconductor ETF iShares Trust | 3.3M | $1.61B | 3.36% | Jun 30, 2026 |
| Invesco QQQ Trust, Series 1 | 3.3M | $1.61B | 0.33% | Jun 30, 2026 |
| VanEck Semiconductor ETF VanEck ETF Trust | 2.4M | $1.15B | 1.50% | Jun 30, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 2.2M | $1.04B | 0.12% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 1.9M | $917.6M | 0.12% | Jun 30, 2026 |
| VANGUARD GROWTH INDEX FUND VANGUARD INDEX FUNDS | 1.8M | $866.5M | 0.23% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 2.0M | $750.2M | 0.09% | May 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list TER's shares (CUSIP 880770102), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming teradyne as client
- TERADYNE INC.TERADYNE INC. · 2026 Q2 · TRD, MAN$270K
Filing ↗ - SIGHTLINE ADVOCACY, LLCTERADYNE, INC. · 2026 Q2 · CPI$30K
Filing ↗ - DLA PIPER LLP (US)TERADYNE, INC. · 2026 Q2 · TRD$50K
Filing ↗ - PENN AVENUE PARTNERSTERADYNE, INC. · 2026 Q2 · CPI, TRD$60K
Filing ↗ - SIGHTLINE ADVOCACY, LLCTERADYNE, INC. · 2026 Q1 · CPI$30K
Filing ↗
Government Contracts
Federal awards to teradyne · USAspending
$8.4MAwarded · 3 contracts on record
U.S. Patents
Recent USPTO applications naming TERADYNE, INC
No USPTO patent applications found for TERADYNE, INC.
Annual Financials
From TER's 10-K filings · XBRL
No annual XBRL figures on record for TER. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 2-for-1Stock splitSep 1, 1999
- 2-for-1Stock splitAug 30, 1995
Split dates and ratios from the price history · Close Prices from Tiingo.com
About TERADYNE, INC
From SEC EDGAR company records
Industry (SIC 3825)Instruments For Meas & Testing of Electricity & Elec Signals
SectorTechnology
HeadquartersNORTH READING, MA
IncorporatedMA
SEC CIK0000097210 ↗
Former namesTERADYNE INC