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Teradyne, Inc. engages in the development and sale of automatic test systems. It operates through the following business segments: Semiconductor Test, Robotics, and All Other. The Semiconductor Test segment designs, manufactures, and markets semiconductor test products and services. The Robotics segment includes operations related to the design, manufacturing, and marketing of collaborative robotic arms, autonomous mobile robots, and advanced robotic control software. The company was founded by Alexander V. d'Arbeloff and Nicholas DeWolf in 1960 and is headquartered in North Reading, MA. |  |
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| Insider Trading |
Relationship |
Date |
Transaction |
Cost |
#Shares |
Value ($) |
#Shares Total |
SEC Form 4 |
| JOHNSON MERCEDES | Director | Jan 05 '26 | Sale | 211.85 | 625 | 132,406 | 8,238 | Jan 06 12:20 PM | | JOHNSON MERCEDES | Director | Jan 05 '26 | Proposed Sale | 211.85 | 625 | 132,406 | | Jan 05 09:42 AM | | Smith Gregory Stephen | President and CEO | Dec 12 '25 | Sale | 201.31 | 1,108 | 223,051 | 93,409 | Dec 15 12:03 PM | | Smith Gregory Stephen | Officer | Dec 12 '25 | Proposed Sale | 201.31 | 1,108 | 223,051 | | Dec 12 09:56 AM | | JOHNSON MERCEDES | Director | Dec 05 '25 | Sale | 200.00 | 625 | 125,000 | 8,863 | Dec 08 05:20 PM | | Ruzicka Kristin | Officer | Dec 05 '25 | Proposed Sale | 77.25 | 2,129 | 164,465 | | Dec 05 10:28 AM | | JOHNSON MERCEDES | Director | Dec 05 '25 | Proposed Sale | 200.00 | 625 | 125,000 | | Dec 05 09:48 AM | | Smith Gregory Stephen | President and CEO | Nov 12 '25 | Sale | 180.20 | 1,108 | 199,662 | 94,517 | Nov 14 11:40 AM | | Smith Gregory Stephen | Officer | Nov 12 '25 | Proposed Sale | 180.20 | 1,108 | 199,662 | | Nov 12 10:05 AM | | Smith Gregory Stephen | President and CEO | Nov 05 '25 | Option Exercise | 36.75 | 2,072 | 76,146 | 96,849 | Nov 07 04:17 PM | | JOHNSON MERCEDES | Director | Nov 05 '25 | Sale | 177.05 | 625 | 110,656 | 9,488 | Nov 07 03:43 PM | | Kumar Ujjwal | Former Officer | Nov 05 '25 | Proposed Sale | 185.00 | 3,942 | 729,270 | | Nov 05 03:17 PM | | Mehta Sanjay | Officer | Nov 05 '25 | Proposed Sale | 180.00 | 6,331 | 1,139,580 | | Nov 05 09:49 AM | | JOHNSON MERCEDES | Director | Nov 05 '25 | Proposed Sale | 177.05 | 625 | 110,656 | | Nov 05 09:38 AM | | Mehta Sanjay | Officer | Nov 04 '25 | Proposed Sale | 177.66 | 6,330 | 1,124,571 | | Nov 04 04:28 PM | | Kumar Ujjwal | Former Officer | Nov 03 '25 | Proposed Sale | 28.64 | 2 | 57 | | Nov 03 02:05 PM | | Kumar Ujjwal | Former Officer | Oct 27 '25 | Proposed Sale | 150.00 | 2,861 | 429,150 | | Oct 27 11:55 AM | | Smith Gregory Stephen | President and CEO | Oct 10 '25 | Sale | 145.24 | 1,108 | 160,926 | 94,777 | Oct 15 09:54 AM | | Smith Gregory Stephen | Officer | Oct 10 '25 | Proposed Sale | 145.24 | 1,108 | 160,926 | | Oct 10 10:13 AM | | JOHNSON MERCEDES | Director | Oct 06 '25 | Sale | 147.90 | 625 | 92,438 | 10,113 | Oct 08 11:05 AM | | JOHNSON MERCEDES | Director | Oct 06 '25 | Proposed Sale | 147.90 | 625 | 92,438 | | Oct 06 09:51 AM | | Smith Gregory Stephen | President and CEO | Sep 22 '25 | Sale | 126.39 | 554 | 70,020 | 95,885 | Sep 24 10:48 AM | | Smith Gregory Stephen | Officer | Sep 22 '25 | Proposed Sale | 126.39 | 554 | 70,020 | | Sep 22 11:30 AM | | Smith Gregory Stephen | President and CEO | Sep 12 '25 | Sale | 115.00 | 554 | 63,710 | 96,439 | Sep 16 12:30 PM | | Smith Gregory Stephen | Officer | Sep 12 '25 | Proposed Sale | 115.00 | 554 | 63,710 | | Sep 12 09:53 AM | | JOHNSON MERCEDES | Director | Sep 05 '25 | Sale | 120.06 | 625 | 75,038 | 10,738 | Sep 09 10:39 AM | | JOHNSON MERCEDES | Director | Sep 05 '25 | Proposed Sale | 120.06 | 625 | 75,038 | | Sep 05 10:15 AM | | Smith Gregory Stephen | President and CEO | Aug 12 '25 | Sale | 106.00 | 554 | 58,724 | 96,993 | Aug 14 11:25 AM | | Smith Gregory Stephen | Officer | Aug 12 '25 | Proposed Sale | 106.00 | 554 | 58,724 | | Aug 12 10:29 AM | | JOHNSON MERCEDES | Director | Aug 05 '25 | Sale | 106.00 | 625 | 66,250 | 11,363 | Aug 07 09:54 AM | | JOHNSON MERCEDES | Director | Aug 05 '25 | Proposed Sale | 106.00 | 625 | 66,250 | | Aug 05 10:14 AM | | JOHNSON MERCEDES | Director | Jul 30 '25 | Sale | 105.73 | 1,875 | 198,244 | 11,988 | Aug 01 09:56 AM | | Smith Gregory Stephen | President and CEO | Jul 30 '25 | Sale | 105.73 | 554 | 58,574 | 97,547 | Aug 01 09:48 AM | | Burns Richard John | Former Officer | Jul 31 '25 | Proposed Sale | 107.78 | 1,066 | 114,895 | | Jul 31 05:00 PM | | JOHNSON MERCEDES | Director | Jul 30 '25 | Proposed Sale | 105.73 | 1,875 | 198,244 | | Jul 30 10:11 AM | | Smith Gregory Stephen | Officer | Jul 30 '25 | Proposed Sale | 105.73 | 554 | 58,574 | | Jul 30 09:59 AM | | JOHNSON MERCEDES | Director | Mar 03 '25 | Sale | 110.96 | 625 | 69,350 | 12,768 | Mar 05 04:20 PM | | JOHNSON MERCEDES | Director | Mar 03 '25 | Proposed Sale | 110.96 | 625 | 69,350 | | Mar 03 03:34 PM | | Mehta Sanjay | VP and Chief Financial Officer | Feb 04 '25 | Sale | 111.49 | 1,384 | 154,302 | 36,576 | Feb 05 02:06 PM | | Burns Richard John | President, Semiconductor Test | Feb 04 '25 | Sale | 111.49 | 445 | 49,613 | 25,191 | Feb 05 02:02 PM | | Driscoll Ryan | VP, General Counsel, Secretary | Feb 04 '25 | Sale | 111.49 | 216 | 24,082 | 7,007 | Feb 05 01:56 PM | | JOHNSON MERCEDES | Director | Feb 03 '25 | Sale | 112.58 | 625 | 70,362 | 13,393 | Feb 04 06:18 PM | | Mehta Sanjay | Officer | Feb 04 '25 | Proposed Sale | 111.49 | 1,384 | 154,302 | | Feb 04 11:20 AM | | Driscoll Ryan | Officer | Feb 04 '25 | Proposed Sale | 111.49 | 216 | 24,082 | | Feb 04 10:15 AM | | Burns Richard John | Officer | Feb 04 '25 | Proposed Sale | 111.49 | 445 | 49,613 | | Feb 04 09:55 AM | | JOHNSON MERCEDES | Director | Feb 03 '25 | Proposed Sale | 112.58 | 625 | 70,362 | | Feb 03 11:37 AM | | Mehta Sanjay | VP and Chief Financial Officer | Jan 30 '25 | Sale | 102.00 | 614 | 62,628 | 30,446 | Jan 31 04:28 PM | | Driscoll Ryan | VP, General Counsel, Secretary | Jan 30 '25 | Sale | 102.00 | 437 | 44,574 | 4,312 | Jan 31 04:23 PM | | Driscoll Ryan | Officer | Jan 30 '25 | Proposed Sale | 102.00 | 437 | 44,574 | | Jan 30 09:49 AM | | Mehta Sanjay | Officer | Jan 30 '25 | Proposed Sale | 102.00 | 614 | 62,628 | | Jan 30 09:45 AM |
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