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Teradyne, Inc (NASDAQ:TER)
US · Delayed Price · Currency is USD
Also listed: 0LEF.LTechnology · Semiconductors
309.19+0.34 (+0.11%)
Market cap
$48.3B
Health Score
Analyst consensus
Listed since
Sep 14, 1970
Website
Insider Score
––Not scored
TER Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
TER Stock Insider Trading Activity
TER stock’s insider trading shows 16 sales on the open market for an estimated $10.06M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| MATZ MARILYN Director | Sell | 400 | $350.00 | $140.00K | 3.1% | 12,641 | Oct 21, 2026 | — | Form 4 |
| MATZ MARILYN Director | Sell | 800 | $341.28 | $273.02K | 5.8% | 13,041 | Oct 15, 2026 | — | Form 4 |
| Smith Gregory Stephen CEO | Sell | 4,000 | $341.28 | $1.37M | 3.7% | 104,495 | Oct 15, 2026 | — | Form 4 |
| JOHNSON MERCEDES Director | Sell | 167 | $402.90 | $67.28K | 2.6% | 6,197 | Oct 1, 2026 | — | Form 4 |
| TUFANO PAUL J Director | Other | 19 | — | — | 0.0% | 66,008 | Sep 25, 2026 | — | Form 4 |
| Herweck Peter Director | Other | 4 | — | — | 0.0% | 16,282 | Sep 25, 2026 | — | Form 4 |
| MADDOCK ERNEST E Director | Other | 2 | — | — | 0.0% | 10,269 | Sep 25, 2026 | — | Form 4 |
| Herweck Peter Director | Award | 77 | — | — | 0.5% | 16,278 | Sep 24, 2026 | — | Form 4 |
| TUFANO PAUL J Director | Award | 141 | — | — | 0.2% | 65,989 | Sep 24, 2026 | — | Form 4 |
| Henry Andrew Chisholm Director | Award | 64 | — | — | 2.2% | 2,991 | Sep 24, 2026 | — | Form 4 |
| MATZ MARILYN Director | Sell | 400 | $351.11 | $140.44K | 2.8% | 13,841 | Sep 17, 2026 | — | Form 4 |
| Smith Gregory Stephen CEO | Sell | 4,000 | $337.83 | $1.35M | 3.6% | 108,495 | Sep 15, 2026 | — | Form 4 |
| MATZ MARILYN Director | Sell | 800 | $337.83 | $270.26K | 5.3% | 14,241 | Sep 15, 2026 | — | Form 4 |
| JOHNSON MERCEDES Director | Sell | 167 | $341.30 | $57.00K | 2.6% | 6,364 | Sep 1, 2026 | — | Form 4 |
| Smith Gregory Stephen CEO | Sell | 4,000 | $425.00 | $1.70M | 3.4% | 112,495 | Aug 17, 2026 | — | Form 4 |
| MATZ MARILYN Director | Sell | 1,200 | $425.00 | $510.00K | 7.4% | 15,041 | Aug 17, 2026 | — | Form 4 |
| JOHNSON MERCEDES Director | Sell | 166 | $358.15 | $59.45K | 2.5% | 6,531 | Aug 3, 2026 | — | Form 4 |
| Smith Gregory Stephen CEO | Sell | 4,000 | $356.31 | $1.43M | 3.3% | 116,495 | Jul 15, 2026 | — | Form 4 |
| MATZ MARILYN Director | Sell | 1,200 | $356.31 | $427.57K | 6.9% | 16,241 | Jul 15, 2026 | — | Form 4 |
| JOHNSON MERCEDES Director | Sell | 167 | $460.00 | $76.82K | 2.4% | 6,697 | Jul 1, 2026 | — | Form 4 |
| TUFANO PAUL J Director | Award | 116 | — | — | 0.2% | 65,848 | Jun 25, 2026 | — | Form 4 |
| Henry Andrew Chisholm Director | Award | 52 | — | — | 1.8% | 2,927 | Jun 25, 2026 | — | Form 4 |
| Herweck Peter Director | Award | 63 | — | — | 0.4% | 16,201 | Jun 25, 2026 | — | Form 4 |
| MATZ MARILYN Director | Sell | 1,200 | $423.03 | $507.64K | 6.4% | 17,441 | Jun 15, 2026 | — | Form 4 |
| Smith Gregory Stephen CEO | Sell | 4,000 | $423.03 | $1.69M | 3.2% | 120,470 | Jun 15, 2026 | — | Form 4 |
| Herweck Peter Director | Other | 4 | — | — | 0.0% | 16,138 | Jun 12, 2026 | — | Form 4 |
| TUFANO PAUL J Director | Other | 19 | — | — | 0.0% | 65,732 | Jun 12, 2026 | — | Form 4 |
| MADDOCK ERNEST E Director | Other | 2 | — | — | 0.0% | 10,267 | Jun 12, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Other (J) — Other acquisition or disposition — the filing explains it in a footnote
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.