Key facts
- TER - TERADYNE, INC has 27 insiders with reported activity on this page.
- Net insider value flow over the last year: -$5,966,927.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 27 Insiders of TERADYNE, INC
- Symbol
- TER on Nasdaq
- Location
- North Reading, MA
Change
- Buy value: ; sell value: $5,966,927.
- Net share flow: -24,173.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$5,966,927.
Buys
$0
Shares: 0
Insiders: 0
Sells
$5,966,927
Shares: 24,173
Insiders: 5
Net
-$5,966,927
Shares: -24,173
Insiders: -5
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 12,383 | $0 | $4,165,366 | -$4,165,366 |
| 3-6 | 0 | 2,983 | $0 | $647,320 | -$647,320 |
| 6-9 | 0 | 5,199 | $0 | $772,449 | -$772,449 |
| 9-12 | 0 | 3,608 | $0 | $381,792 | -$381,792 |
TERADYNE, INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Gregory Stephen Smith | President and CEO, Director | $42,192,695 | -$3,748,879 | -8.2% | Filing P/S | 15 May 2026 |
| Mark E. Jagiela | CEO, Director | $21,731,948 | Mixed | 30 Jan 2023 | ||
| Paul J. Tufano | Director | $19,481,275 | Median | 08 May 2026 | ||
| Timothy E. Guertin | Director | $6,651,783 | Mixed | 15 Mar 2024 | ||
| Marilyn Matz | Director | $6,454,408 | -$271,184 | -4% | Filing P/S | 15 May 2026 |
| Brad Robbins | President, LitePoint Corp. | $5,597,563 | Mixed | 29 Jan 2024 | ||
| Peter Herweck | Director | $4,783,085 | Median | 08 May 2026 | ||
| Edwin J. Gillis | Director | $4,575,690 | Mixed | 17 Mar 2023 | ||
| Walter G. Vahey | Exec. VP, Corp. Development | $4,330,763 | Mixed | 28 Jan 2022 | ||
| Sanjay Mehta | VP and Chief Financial Officer | $4,077,884 | Filing P/S | 04 Feb 2025 | ||
| Regan Mills | President, Product Test | $3,900,513 | -$341,078 | -8% | Filing P/S | 08 Apr 2026 |
| Shannon John Poulin | President, Semiconductor Test | $3,111,201 | Mixed | 01 Apr 2026 | ||
| Ernest E. Maddock | Director | $3,043,161 | Median | 08 May 2026 | ||
| Ryan E. Driscoll | VP, General Counsel, Secretary | $2,894,419 | -$256,768 | -8.1% | Filing P/S | 07 May 2026 |
| Richard John Burns | President, Semiconductor Test | $2,808,517 | Filing P/S | 04 Feb 2025 | ||
| Mercedes Johnson | Director | $2,640,568 | -$1,349,019 | -34% | Median | 08 May 2026 |
| Charles Jeffrey Gray | VP, General Counsel, Secretary | $2,613,883 | Mixed | 29 Jan 2024 | ||
| Michael A. Bradley | Director | $2,585,227 | Mixed | 16 Dec 2021 | ||
| Jean Pierre Hathout | President, Teradyne Robotics | $1,969,279 | Mixed | 04 Feb 2026 | ||
| Bridget A. van Kralingen | Director | $1,845,167 | Median | 08 May 2026 | ||
| Ujjwal Kumar | President, Teradyne Robotics | $1,704,995 | Mixed | 01 Aug 2025 | ||
| John Francis Wood | President, System Test Group | $1,570,493 | Mixed | 31 Jan 2025 | ||
| Michelle L. Turner | Chief Financial Officer | $1,549,826 | Mixed | 03 Nov 2025 | ||
| Ford Tamer | Director | $994,931 | Mixed | 12 May 2023 | ||
| Andrew Chisholm Henry | Director | $852,322 | Median | 08 May 2026 | ||
| Necip Sayiner | Director | $830,088 | Median | 08 May 2026 | ||
| John Lukez | President, LitePoint Corp. | $464,912 | Mixed | 31 Jan 2025 |
Top shareholders of TERADYNE, INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
|
Vanguard Capital Management · Company |
7.5%
|
11,732,982
|
$3,478,359,844 | $0 | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
|
Vanguard Portfolio Management · Company |
5.5%
|
8,623,026
|
$2,556,382,288 | $0 | 31 Mar 2026 | |
| FMR LLC |
13F
13D/G
|
Company |
4.9%
from 13D/G
|
3,609,505
|
$1,070,073,824 | — | 31 Mar 2026 | |
| Gregory Stephen Smith |
3/4/5
|
President and CEO, Director |
0.08%
|
124,470
|
$42,192,695 | -$3,748,879 | 15 May 2026 | |
| Paul J. Tufano |
3/4/5
|
Director |
0.04%
|
65,713
|
$19,481,275 | — | 08 May 2026 | |
| Marilyn Matz |
3/4/5
|
Director |
0.01%
|
19,041
|
$6,454,408 | -$271,184 | 15 May 2026 | |
| Peter Herweck |
3/4/5
|
Director |
0.01%
|
16,134
|
$4,783,085 | — | 08 May 2026 | |
| Ernest E. Maddock |
3/4/5
|
Director |
0.01%
|
10,265
|
$3,043,161 | — | 08 May 2026 | |
| Mercedes Johnson |
3/4/5
|
Director |
0.01%
|
8,907
|
$2,640,568 | -$1,349,019 | 08 May 2026 | |
| Bridget A. van Kralingen |
3/4/5
|
Director |
0%
|
6,224
|
$1,845,167 | — | 08 May 2026 | |
| Andrew Chisholm Henry |
3/4/5
|
Director |
0%
|
2,875
|
$852,322 | — | 08 May 2026 | |
| Necip Sayiner |
3/4/5
|
Director |
0%
|
2,800
|
$830,088 | — | 08 May 2026 | |
| BlackRock, Inc. |
13F
|
Company |
10%
|
16,305,187
|
$4,833,835,698 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
4.4%
|
6,970,426
|
$2,066,452,492 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.8%
|
4,368,680
|
$1,292,880,543 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.8%
|
2,870,640
|
$793,301,661 | — | 31 Mar 2026 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
1.8%
|
2,843,976
|
$842,978,846 | — | 31 Mar 2026 | |
| ALKEON CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.8%
|
2,789,510
|
$826,978,147 | — | 31 Mar 2026 | |
| Invesco Ltd. |
13F
|
Company |
1.6%
|
2,520,584
|
$747,252,278 | — | 31 Mar 2026 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
1.6%
|
2,484,365
|
$736,515,000 | — | 31 Mar 2026 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
1.5%
|
2,284,718
|
$677,327,498 | — | 31 Mar 2026 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.4%
|
2,183,208
|
$629,549,722 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
1.4%
|
2,172,070
|
$643,932,949 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.4%
|
2,118,808
|
$628,143,000 | — | 31 Mar 2026 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
1.3%
|
1,965,465
|
$582,681,754 | — | 31 Mar 2026 | |
| LONE PINE CAPITAL LLC |
13F
|
Company |
1.2%
|
1,872,876
|
$555,232,819 | — | 31 Mar 2026 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
1.1%
|
1,703,715
|
$505,083,349 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.1%
|
1,693,254
|
$501,982,047 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1%
|
1,574,900
|
$466,894,854 | — | 31 Mar 2026 | |
| Assenagon Asset Management S.A. |
13F
|
Company |
0.93%
|
1,455,143
|
$431,391,694 | — | 31 Mar 2026 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
0.9%
|
1,409,567
|
$417,880,197 | — | 31 Mar 2026 | |
| Amundi |
13F
|
Individual |
0.89%
|
1,398,833
|
$414,698,031 | — | 31 Mar 2026 | |
| BARCLAYS PLC |
13F
|
Company |
0.88%
|
1,386,714
|
$411,105,231 | — | 31 Mar 2026 | |
| ARK Investment Management LLC |
13F
|
Company |
0.79%
|
1,245,122
|
$369,128,978 | — | 31 Mar 2026 | |
| CITIGROUP INC |
13F
|
Company |
0.73%
|
1,144,838
|
$339,398,673 | — | 31 Mar 2026 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.71%
|
1,112,693
|
$347,382,755 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.71%
|
1,109,977
|
$329,063,782 | — | 31 Mar 2026 | |
| Legal & General Group Plc |
13F
|
Company |
0.7%
|
1,094,278
|
$324,408,049 | — | 31 Mar 2026 | |
| Rafferty Asset Management, LLC |
13F
|
Company |
0.7%
|
1,090,120
|
$323,176,975 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.69%
|
1,085,959
|
$321,943,343 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.65%
|
1,021,081
|
$302,709,673 | — | 31 Mar 2026 | |
| Neuberger Berman Group LLC |
13F
|
Company |
0.62%
|
971,517
|
$282,668,293 | — | 31 Mar 2026 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.59%
|
925,766
|
$274,452,588 | — | 31 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.56%
|
885,318
|
$262,461,306 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.56%
|
881,262
|
$261,258,933 | — | 31 Mar 2026 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
0.56%
|
872,377
|
$258,588,000 | — | 31 Mar 2026 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.55%
|
866,712
|
$256,945,439 | — | 31 Mar 2026 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.54%
|
851,579
|
$252,459,111 | — | 31 Mar 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.54%
|
839,431
|
$248,857,714 | — | 31 Mar 2026 | |
| LAZARD ASSET MANAGEMENT LLC |
13F
|
Company |
0.53%
|
830,964
|
$246,347,587 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for TERADYNE, INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Gregory Stephen Smith | TER | Common Stock | Sale | -6.46% | $2,914,211 | $338.98 | -8,597 | 124,470 | 15 May 2026 | Direct |
| Gregory Stephen Smith | TER | Common Stock | Options Exercise | 3.58% | 4,597 | 133,067 | 15 May 2026 | Direct | ||
| Gregory Stephen Smith | TER | Stock Option (Right to Buy) | Options Exercise | -100% | -4,597 | 0 | 15 May 2026 | Direct | ||
| Marilyn Matz | TER | Common Stock | Sale | -4.03% | $271,184 | $338.98 | -800 | 19,041 | 15 May 2026 | Direct |
| Peter Herweck | TER | Common Stock | Award | 4.32% | 668 | 16,134 | 08 May 2026 | Direct | ||
| Mercedes Johnson | TER | Common Stock | Award | 10.5% | 668 | 7,031 | 08 May 2026 | Direct | ||
| Marilyn Matz | TER | Common Stock | Award | 3.48% | 668 | 19,841 | 08 May 2026 | Direct | ||
| Bridget A. van Kralingen | TER | Common Stock | Award | 12% | 668 | 6,224 | 08 May 2026 | Direct | ||
| Paul J. Tufano | TER | Common Stock | Award | 1.03% | 668 | 65,713 | 08 May 2026 | Direct | ||
| Necip Sayiner | TER | Common Stock | Award | 31.3% | 668 | 2,800 | 08 May 2026 | Direct | ||
| Ernest E. Maddock | TER | Common Stock | Award | 6.96% | 668 | 10,265 | 08 May 2026 | Direct | ||
| Andrew Chisholm Henry | TER | Common Stock | Award | 30.3% | 668 | 2,875 | 08 May 2026 | Direct | ||
| Ryan E. Driscoll | TER | Common Stock | Sale | -8.15% | $256,768 | $377.60 | -680 | 7,665 | 07 May 2026 | Direct |
| Regan Mills | TER | Common Stock | Sale | -0.14% | $5,475 | $342.17 | -16 | 11,399 | 08 Apr 2026 | Direct |
| Mercedes Johnson | TER | Common Stock | Sale | -8.94% | $195,125 | $312.20 | -625 | 6,363 | 06 Apr 2026 | Direct |
| Regan Mills | TER | Common Stock | Sale | -2.16% | $73,302 | $290.88 | -252 | 11,415 | 02 Apr 2026 | Direct |
| Shannon John Poulin | TER | Common Stock | Tax liability | -6.74% | -1,162 | 16,074 | 01 Apr 2026 | Direct | ||
| Regan Mills | TER | Common Stock | Tax liability | -1.87% | -222 | 11,667 | 01 Apr 2026 | Direct | ||
| Peter Herweck | TER | Common Stock | Award | 0.6% | 92 | 15,466 | 26 Mar 2026 | Direct | ||
| Paul J. Tufano | TER | Common Stock | Award | 0.25% | 159 | 65,045 | 26 Mar 2026 | Direct | ||
| Andrew Chisholm Henry | TER | Common Stock | Award | 3.52% | 75 | 2,207 | 26 Mar 2026 | Direct | ||
| Ernest E. Maddock | TER | Common Stock | Other | 0.02% | 2 | 9,597 | 13 Mar 2026 | Direct | ||
| Paul J. Tufano | TER | Common Stock | Other | 0.04% | 25 | 64,886 | 13 Mar 2026 | Direct | ||
| Peter Herweck | TER | Common Stock | Other | 0.03% | 5 | 15,374 | 13 Mar 2026 | Direct | ||
| Mercedes Johnson | TER | Common Stock | Sale | -8.21% | $187,000 | $299.20 | -625 | 6,988 | 05 Mar 2026 | Direct |
| Regan Mills | TER | Common Stock | Sale | -6.22% | $262,302 | $332.87 | -788 | 11,889 | 25 Feb 2026 | Direct |
| Mercedes Johnson | TER | Common Stock | Sale | -7.59% | $166,862 | $266.98 | -625 | 7,613 | 05 Feb 2026 | Direct |
| Gregory Stephen Smith | TER | Common Stock | Award | 11.6% | 13,380 | 128,470 | 04 Feb 2026 | Direct | ||
| Gregory Stephen Smith | TER | Stock Option (Right to Buy) | Award | 11,810 | 11,810 | 04 Feb 2026 | Direct | |||
| Shannon John Poulin | TER | Common Stock | Award | 34.9% | 4,460 | 17,236 | 04 Feb 2026 | Direct | ||
| Shannon John Poulin | TER | Stock Option (Right to Buy) | Award | 3,937 | 3,937 | 04 Feb 2026 | Direct | |||
| Ryan E. Driscoll | TER | Common Stock | Award | 27.2% | 1,784 | 8,345 | 04 Feb 2026 | Direct | ||
| Ryan E. Driscoll | TER | Stock Option (Right to Buy) | Award | 1,575 | 1,575 | 04 Feb 2026 | Direct | |||
| Regan Mills | TER | Common Stock | Award | 8.6% | 1,004 | 12,677 | 04 Feb 2026 | Direct | ||
| Regan Mills | TER | Stock Option (Right to Buy) | Award | 886 | 886 | 04 Feb 2026 | Direct | |||
| Jean Pierre Hathout | TER | Common Stock | Award | 11% | 1,004 | 10,174 | 04 Feb 2026 | Direct | ||
| Jean Pierre Hathout | TER | Stock Option (Right to Buy) | Award | 886 | 886 | 04 Feb 2026 | Direct | |||
| Jean Pierre Hathout | TER | Common Stock | Tax liability | -3.99% | -381 | 9,170 | 02 Feb 2026 | Direct | ||
| Regan Mills | TER | Common Stock | Tax liability | -2.87% | -345 | 11,673 | 02 Feb 2026 | Direct | ||
| Gregory Stephen Smith | TER | Common Stock | Tax liability | -5.55% | -6,763 | 115,090 | 02 Feb 2026 | Direct | ||
| Ryan E. Driscoll | TER | Common Stock | Tax liability | -5.94% | -414 | 6,561 | 02 Feb 2026 | Direct | ||
| Regan Mills | TER | Common Stock | Tax liability | -1.37% | -167 | 12,018 | 28 Jan 2026 | Direct | ||
| Gregory Stephen Smith | TER | Common Stock | Tax liability | -0.4% | -486 | 121,853 | 28 Jan 2026 | Direct | ||
| Ryan E. Driscoll | TER | Common Stock | Tax liability | -1.16% | -82 | 6,975 | 28 Jan 2026 | Direct | ||
| Regan Mills | TER | Common Stock | Tax liability | -1.56% | -193 | 12,185 | 27 Jan 2026 | Direct | ||
| Gregory Stephen Smith | TER | Common Stock | Tax liability | -20% | -30,610 | 122,339 | 27 Jan 2026 | Direct | ||
| Gregory Stephen Smith | TER | Common Stock | Award | 63.6% | 59,475 | 152,949 | 27 Jan 2026 | Direct | ||
| Ryan E. Driscoll | TER | Common Stock | Tax liability | -1.58% | -113 | 7,057 | 27 Jan 2026 | Direct | ||
| Mercedes Johnson | TER | Common Stock | Sale | -7.05% | $132,406 | $211.85 | -625 | 8,238 | 05 Jan 2026 | Direct |
| Paul J. Tufano | TER | Common Stock | Other | 0.06% | 36 | 64,861 | 17 Dec 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.