Teradyne, Inc. (TER) Insider Trading
Directors, officers and holders of more than 10% of TER report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 210 transactions on file: 0 with code P, 23 with code S and 27 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 21, 2026 | MATZ MARILYN | Director | S Sale | 400 | $350.00 | $140,000 |
| Oct 15, 2026 | Smith Gregory Stephen | President and CEO | S Sale | 4,000 | $341.28 | $1,365,120 |
| Oct 15, 2026 | MATZ MARILYN | Director | S Sale | 800 | $341.28 | $273,024 |
| Oct 1, 2026 | JOHNSON MERCEDES | Director | S Sale | 167 | $402.90 | $67,284 |
| Sep 25, 2026 | TUFANO PAUL J | Director | J Other | 19 | Not measured | Not measured |
| Sep 25, 2026 | Herweck Peter | Director | J Other | 4 | Not measured | Not measured |
| Sep 25, 2026 | MADDOCK ERNEST E | Director | J Other | 2 | Not measured | Not measured |
| Sep 24, 2026 | Henry Andrew Chisholm | Director | A Award | 64 | Not measured | Not measured |
| Sep 24, 2026 | Herweck Peter | Director | A Award | 77 | Not measured | Not measured |
| Sep 24, 2026 | TUFANO PAUL J | Director | A Award | 141 | Not measured | Not measured |
| Sep 17, 2026 | MATZ MARILYN | Director | S Sale | 400 | $351.11 | $140,444 |
| Sep 15, 2026 | MATZ MARILYN | Director | S Sale | 800 | $337.83 | $270,264 |
| Sep 15, 2026 | Smith Gregory Stephen | President and CEO | S Sale | 4,000 | $337.83 | $1,351,320 |
| Sep 1, 2026 | JOHNSON MERCEDES | Director | S Sale | 167 | $341.30 | $56,997 |
| Aug 17, 2026 | Smith Gregory Stephen | President and CEO | S Sale | 4,000 | $425.00 | $1,700,000 |
| Aug 17, 2026 | MATZ MARILYN | Director | S Sale | 1,200 | $425.00 | $510,000 |
| Aug 3, 2026 | JOHNSON MERCEDES | Director | S Sale | 166 | $358.15 | $59,453 |
| Jul 15, 2026 | Smith Gregory Stephen | President and CEO | S Sale | 4,000 | $356.31 | $1,425,240 |
| Jul 15, 2026 | MATZ MARILYN | Director | S Sale | 1,200 | $356.31 | $427,572 |
| Jul 1, 2026 | JOHNSON MERCEDES | Director | S Sale | 167 | $460.00 | $76,820 |
| Jun 25, 2026 | Herweck Peter | Director | A Award | 63 | Not measured | Not measured |
| Jun 25, 2026 | TUFANO PAUL J | Director | A Award | 116 | Not measured | Not measured |
| Jun 25, 2026 | Henry Andrew Chisholm | Director | A Award | 52 | Not measured | Not measured |
| Jun 15, 2026 | MATZ MARILYN | Director | S Sale | 1,200 | $423.03 | $507,636 |
| Jun 15, 2026 | Smith Gregory Stephen | President and CEO | S Sale | 4,000 | $423.03 | $1,692,120 |
| Jun 12, 2026 | Herweck Peter | Director | J Other | 4 | Not measured | Not measured |
| Jun 12, 2026 | TUFANO PAUL J | Director | J Other | 19 | Not measured | Not measured |
| Jun 12, 2026 | MADDOCK ERNEST E | Director | J Other | 2 | Not measured | Not measured |
| Jun 2, 2026 | Hathout Jean Pierre | President, Teradyne Robotics | F Tax Payment | 174 | $392.62 | $68,316 |
| Jun 2, 2026 | JOHNSON MERCEDES | Director | S Sale | 167 | $369.74 | $61,747 |
| Jun 1, 2026 | Hathout Jean Pierre | President, Teradyne Robotics | F Tax Payment | 267 | $369.47 | $98,648 |
| May 22, 2026 | Poulin Shannon John | President, Semiconductor Test | S Sale | 656 | $355.00 | $232,880 |
| May 21, 2026 | Poulin Shannon John | President, Semiconductor Test | F Tax Payment | 1,531 | $345.98 | $529,695 |
| May 21, 2026 | Poulin Shannon John | President, Semiconductor Test | M Exercise | 2,843 | Not measured | Not measured |
| May 21, 2026 | Poulin Shannon John | President, Semiconductor Test | S Sale | 1,008 | $345.37 | $348,133 |
| May 21, 2026 | Poulin Shannon John | President, Semiconductor Test | M Exercise | 2,843 | $82.61 | $234,860 |
| May 21, 2026 | MATZ MARILYN | Director | S Sale | 400 | $350.00 | $140,000 |
| May 15, 2026 | Smith Gregory Stephen | President and CEO | S Sale | 8,597 | $338.98 | $2,914,211 |
| May 15, 2026 | Smith Gregory Stephen | President and CEO | M Exercise | 4,597 | Not measured | Not measured |
| May 15, 2026 | Smith Gregory Stephen | President and CEO | M Exercise | 4,597 | $72.10 | $331,444 |
| May 15, 2026 | MATZ MARILYN | Director | S Sale | 800 | $338.98 | $271,184 |
| May 8, 2026 | MATZ MARILYN | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | TUFANO PAUL J | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | MADDOCK ERNEST E | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | Herweck Peter | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | Sayiner Necip | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | JOHNSON MERCEDES | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | van Kralingen Bridget A | Director | A Award | 668 | Not measured | Not measured |
| May 8, 2026 | Henry Andrew Chisholm | Director | A Award | 668 | Not measured | Not measured |
| May 7, 2026 | Driscoll Ryan | VP, General Counsel, Secretary | S Sale | 680 | $377.60 | $256,768 |
The full Form 4 history is on the TER company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.