Teradyne Inc (TER) · Insider trading

What Teradyne's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months

0 insiders, 0 trades

Sold, 12 months

$14.19M

6 insiders, 98% under a plan

Net, 12 months

−$14.19M

bought less sold

Latest filing

2026-10-02

filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

Bought Sold Largest month: $4.16M

Who traded, two years

Insider	Bought	Sold	Trades	Last trade	Holds after
Smith Gregory StephenDirector, President and CEO	–	$10.72M	14	2026-09-15	108,495
Matz MarilynDirector	–	$2.27M	7	2026-09-17	13,841
Johnson MercedesDirector	–	$2.03M	20	2026-10-01	6,197
Mehta SanjayVP and Chief Financial Officer	–	$1.09M	4	2025-02-04	36,576
Poulin Shannon JohnPresident, Semiconductor Test	–	$581,013	2	2026-05-22	15,722
Driscoll RyanVP, General Counsel, Secretary	–	$347,659	5	2026-05-07	7,665
Mills ReganPresident, Product Test	–	$341,078	3	2026-04-08	11,399
Burns Richard JohnPresident, Semiconductor Test	–	$280,184	3	2025-02-04	25,191

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

Date	Insider	Trade	Shares	Price	Value	Holds after	Filing
2026-10-01	Johnson MercedesDirector	Saleplan	167	402.90	$67,284	6,197	Form 4
2026-09-17	Matz MarilynDirector	Saleplan	400	351.11	$140,444	13,841	Form 4
2026-09-15	Matz MarilynDirector	Saleplan	800	337.83	$270,264	14,241	Form 4
2026-09-15	Smith Gregory StephenDirector, President and CEO	Saleplan	4,000	337.83	$1.35M	108,495	Form 4
2026-09-01	Johnson MercedesDirector	Saleplan	167	341.30	$56,997	6,364	Form 4
2026-08-17	Matz MarilynDirector	Saleplan	1,200	425.00	$510,000	15,041	Form 4
2026-08-17	Smith Gregory StephenDirector, President and CEO	Saleplan	4,000	425.00	$1.70M	112,495	Form 4
2026-08-03	Johnson MercedesDirector	Saleplan	166	358.15	$59,453	6,531	Form 4
2026-07-15	Matz MarilynDirector	Saleplan	1,200	356.31	$427,572	16,241	Form 4
2026-07-15	Smith Gregory StephenDirector, President and CEO	Saleplan	4,000	356.31	$1.43M	116,495	Form 4
2026-07-01	Johnson MercedesDirector	Saleplan	167	460.00	$76,820	6,697	Form 4
2026-06-15	Smith Gregory StephenDirector, President and CEO	Saleplan	4,000	423.03	$1.69M	120,470	Form 4
2026-06-15	Matz MarilynDirector	Saleplan	1,200	423.03	$507,636	17,441	Form 4
2026-06-02	Johnson MercedesDirector	Saleplan	167	369.74	$61,747	6,864	Form 4
2026-05-22	Poulin Shannon JohnPresident, Semiconductor Test	Saleplan	656	355.00	$232,880	15,722	Form 4
2026-05-21	Matz MarilynDirector	Saleplan	400	350.00	$140,000	18,641	Form 4
2026-05-21	Poulin Shannon JohnPresident, Semiconductor Test	Saleplan	1,008	345.37	$348,133	15,066	Form 4
2026-05-15	Matz MarilynDirector	Saleplan	800	338.98	$271,184	19,041	Form 4
2026-05-15	Smith Gregory StephenDirector, President and CEO	Saleplan	8,597	338.98	$2.91M	124,470	Form 4
2026-05-07	Driscoll RyanVP, General Counsel, Secretary	Saleplan	680	377.60	$256,768	7,665	Form 4
2026-04-08	Mills ReganPresident, Product Test	Saleplan	16	342.17	$5,475	11,399	Form 4
2026-04-06	Johnson MercedesDirector	Saleplan	625	312.20	$195,125	6,363	Form 4
2026-04-02	Mills ReganPresident, Product Test	Saleplan	252	290.88	$73,302	11,415	Form 4
2026-03-05	Johnson MercedesDirector	Saleplan	625	299.20	$187,000	6,988	Form 4
2026-02-25	Mills ReganPresident, Product Test	Sale	788	332.87	$262,302	11,889	Form 4
2026-02-05	Johnson MercedesDirector	Saleplan	625	266.98	$166,862	7,613	Form 4
2026-01-05	Johnson MercedesDirector	Saleplan	625	211.85	$132,406	8,238	Form 4
2025-12-12	Smith Gregory StephenDirector, President and CEO	Saleplan	1,108	201.31	$223,051	93,409	Form 4
2025-12-05	Johnson MercedesDirector	Saleplan	625	200.00	$125,000	8,863	Form 4
2025-11-12	Smith Gregory StephenDirector, President and CEO	Saleplan	1,108	180.20	$199,662	94,517	Form 4
2025-11-05	Johnson MercedesDirector	Saleplan	625	177.05	$110,656	9,488	Form 4
2025-10-10	Smith Gregory StephenDirector, President and CEO	Saleplan	1,108	145.24	$160,926	94,777	Form 4
2025-10-06	Johnson MercedesDirector	Saleplan	625	147.90	$92,438	10,113	Form 4
2025-09-22	Smith Gregory StephenDirector, President and CEO	Saleplan	554	126.39	$70,020	95,885	Form 4
2025-09-12	Smith Gregory StephenDirector, President and CEO	Saleplan	554	115.00	$63,710	96,439	Form 4
2025-09-05	Johnson MercedesDirector	Saleplan	625	120.06	$75,038	10,738	Form 4
2025-08-12	Smith Gregory StephenDirector, President and CEO	Saleplan	554	106.00	$58,724	96,993	Form 4
2025-08-05	Johnson MercedesDirector	Saleplan	625	106.00	$66,250	11,363	Form 4
2025-07-30	Smith Gregory StephenDirector, President and CEO	Saleplan	554	105.73	$58,574	97,547	Form 4
2025-07-30	Johnson MercedesDirector	Saleplan	1,875	105.73	$198,244	11,988	Form 4

18 more

2025-03-03	Johnson MercedesDirector	Saleplan	625	110.96	$69,350	12,768	Form 4
2025-02-04	Driscoll RyanVP, General Counsel, Secretary	Saleplan	216	111.49	$24,082	7,007	Form 4
2025-02-04	Burns Richard JohnPresident, Semiconductor Test	Saleplan	445	111.49	$49,613	25,191	Form 4
2025-02-04	Mehta SanjayVP and Chief Financial Officer	Saleplan	1,384	111.49	$154,302	36,576	Form 4
2025-02-03	Johnson MercedesDirector	Saleplan	625	112.58	$70,362	13,393	Form 4
2025-01-30	Driscoll RyanVP, General Counsel, Secretary	Saleplan	437	102.00	$44,574	4,312	Form 4
2025-01-30	Mehta SanjayVP and Chief Financial Officer	Saleplan	614	102.00	$62,628	30,446	Form 4
2025-01-29	Driscoll RyanVP, General Counsel, Secretary	Saleplan	76	122.90	$9,340	4,749	Form 4
2025-01-29	Burns Richard JohnPresident, Semiconductor Test	Saleplan	1,477	122.90	$181,523	21,213	Form 4
2025-01-29	Mehta SanjayVP and Chief Financial Officer	Saleplan	5,338	122.90	$656,040	31,060	Form 4
2025-01-28	Burns Richard JohnPresident, Semiconductor Test	Saleplan	407	120.51	$49,048	20,573	Form 4/A
2025-01-28	Mehta SanjayVP and Chief Financial Officer	Saleplan	1,789	120.51	$215,592	33,308	Form 4
2025-01-28	Driscoll RyanVP, General Counsel, Secretary	Saleplan	107	120.51	$12,895	4,984	Form 4
2025-01-03	Smith Gregory StephenDirector, President and CEO	Saleplan	3,080	130.00	$400,400	74,660	Form 4
2025-01-02	Johnson MercedesDirector	Saleplan	625	126.76	$79,225	14,018	Form 4
2024-12-16	Smith Gregory StephenDirector, President and CEO	Saleplan	3,080	130.00	$400,400	77,656	Form 4
2024-12-02	Johnson MercedesDirector	Saleplan	625	110.04	$68,775	14,643	Form 4
2024-11-07	Johnson MercedesDirector	Saleplan	625	111.42	$69,638	15,268	Form 4

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

52 × grant or award41 × shares withheld for tax24 × other3 × option exercise

Show them

Date	Insider	What	Shares	Price	Holds after	Filing
2026-09-25	Maddock Ernest eDirector	Other J	+2	–	10,269	Form 4
2026-09-25	Tufano Paul JDirector	Other J	+19	–	66,008	Form 4
2026-09-25	Herweck PeterDirector	Other J	+4	–	16,282	Form 4
2026-09-24	Henry Andrew ChisholmDirector	Grant or award A	+64	–	2,991	Form 4
2026-09-24	Tufano Paul JDirector	Grant or award A	+141	–	65,989	Form 4
2026-09-24	Herweck PeterDirector	Grant or award A	+77	–	16,278	Form 4
2026-06-25	Herweck PeterDirector	Grant or award A	+63	–	16,201	Form 4
2026-06-25	Henry Andrew ChisholmDirector	Grant or award A	+52	–	2,927	Form 4
2026-06-25	Tufano Paul JDirector	Grant or award A	+116	–	65,848	Form 4
2026-06-12	Tufano Paul JDirector	Other J	+19	–	65,732	Form 4
2026-06-12	Herweck PeterDirector	Other J	+4	–	16,138	Form 4
2026-06-12	Maddock Ernest eDirector	Other J	+2	–	10,267	Form 4
2026-06-02	Hathout Jean PierrePresident, Teradyne Robotics	Shares withheld for tax F	−174	392.62	9,733	Form 4
2026-06-01	Hathout Jean PierrePresident, Teradyne Robotics	Shares withheld for tax F	−267	369.47	9,907	Form 4
2026-05-21	Poulin Shannon JohnPresident, Semiconductor Test	Option exercise M	+2,843	82.61	17,909	Form 4
2026-05-21	Poulin Shannon JohnPresident, Semiconductor Test	Shares withheld for tax F	−1,531	345.98	16,378	Form 4
2026-05-15	Smith Gregory StephenDirector, President and CEO	Option exercise M	+4,597	72.10	133,067	Form 4
2026-05-08	Henry Andrew ChisholmDirector	Grant or award A	+668	–	2,875	Form 4
2026-05-08	Maddock Ernest eDirector	Grant or award A	+668	–	10,265	Form 4
2026-05-08	Sayiner NecipDirector	Grant or award A	+668	–	2,800	Form 4
2026-05-08	Tufano Paul JDirector	Grant or award A	+668	–	65,713	Form 4
2026-05-08	van Kralingen Bridget ADirector	Grant or award A	+668	–	6,224	Form 4
2026-05-08	Matz MarilynDirector	Grant or award A	+668	–	19,841	Form 4
2026-05-08	Johnson MercedesDirector	Grant or award A	+668	–	7,031	Form 4
2026-05-08	Herweck PeterDirector	Grant or award A	+668	–	16,134	Form 4
2026-04-01	Mills ReganPresident, Product Test	Shares withheld for tax F	−222	312.20	11,667	Form 4
2026-04-01	Poulin Shannon JohnPresident, Semiconductor Test	Shares withheld for tax F	−1,162	312.20	16,074	Form 4
2026-03-26	Henry Andrew ChisholmDirector	Grant or award A	+75	–	2,207	Form 4
2026-03-26	Tufano Paul JDirector	Grant or award A	+159	–	65,045	Form 4
2026-03-26	Herweck PeterDirector	Grant or award A	+92	–	15,466	Form 4
2026-03-13	Herweck PeterDirector	Other J	+5	–	15,374	Form 4
2026-03-13	Tufano Paul JDirector	Other J	+25	–	64,886	Form 4
2026-03-13	Maddock Ernest eDirector	Other J	+2	–	9,597	Form 4
2026-02-04	Hathout Jean PierrePresident, Teradyne Robotics	Grant or award A	+1,004	–	10,174	Form 4
2026-02-04	Mills ReganPresident, Product Test	Grant or award A	+1,004	–	12,677	Form 4
2026-02-04	Driscoll RyanVP, General Counsel, Secretary	Grant or award A	+1,784	–	8,345	Form 4
2026-02-04	Poulin Shannon JohnPresident, Semiconductor Test	Grant or award A	+4,460	–	17,236	Form 4
2026-02-04	Smith Gregory StephenDirector, President and CEO	Grant or award A	+13,380	–	128,470	Form 4
2026-02-02	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−414	249.53	6,561	Form 4
2026-02-02	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−6,763	249.53	115,090	Form 4
2026-02-02	Mills ReganPresident, Product Test	Shares withheld for tax F	−345	249.53	11,673	Form 4
2026-02-02	Hathout Jean PierrePresident, Teradyne Robotics	Shares withheld for tax F	−381	249.53	9,170	Form 4
2026-01-28	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−82	250.48	6,975	Form 4
2026-01-28	Mills ReganPresident, Product Test	Shares withheld for tax F	−167	250.48	12,018	Form 4
2026-01-28	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−486	250.48	121,853	Form 4
2026-01-27	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−113	238.94	7,057	Form 4
2026-01-27	Mills ReganPresident, Product Test	Shares withheld for tax F	−193	238.94	12,185	Form 4
2026-01-27	Smith Gregory StephenDirector, President and CEO	Grant or award A	+59,475	–	152,949	Form 4
2026-01-27	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−30,610	238.94	122,339	Form 4
2025-12-17	Maddock Ernest eDirector	Other J	+2	–	9,595	Form 4
2025-12-17	Herweck PeterDirector	Grant or award A	+148	–	15,362	Form 4
2025-12-17	Herweck PeterDirector	Other J	+7	–	15,369	Form 4
2025-12-17	Tufano Paul JDirector	Grant or award A	+256	–	64,825	Form 4
2025-12-17	Tufano Paul JDirector	Other J	+36	–	64,861	Form 4
2025-11-05	Smith Gregory StephenDirector, President and CEO	Option exercise M	+2,072	36.75	96,849	Form 4
2025-11-05	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−1,224	177.05	95,625	Form 4
2025-11-03	Turner Michelle L.Chief Financial Officer	Grant or award A	+11,144	–	11,260	Form 4
2025-09-29	Herweck PeterDirector	Other J	+9	–	15,214	Form 4
2025-09-29	Tufano Paul JDirector	Other J	+49	–	64,569	Form 4
2025-09-29	Maddock Ernest eDirector	Other J	+3	–	9,593	Form 4
2025-09-25	Herweck PeterDirector	Grant or award A	+206	–	15,205	Form 4
2025-09-25	Tufano Paul JDirector	Grant or award A	+357	–	64,520	Form 4
2025-08-01	Kumar UjjwalPresident, Teradyne Robotics	Shares withheld for tax F	−657	104.16	16,369	Form 4
2025-07-01	Henry Andrew ChisholmDirector	Grant or award A	+2,132	–	2,132	Form 4
2025-07-01	Sayiner NecipDirector	Grant or award A	+2,132	–	2,132	Form 4
2025-06-26	Herweck PeterDirector	Grant or award A	+302	–	14,999	Form 4
2025-06-26	Tufano Paul JDirector	Grant or award A	+521	–	64,163	Form 4
2025-06-13	Tufano Paul JDirector	Other J	+79	–	63,642	Form 4
2025-06-13	Maddock Ernest eDirector	Other J	+6	–	9,590	Form 4
2025-06-13	Herweck PeterDirector	Other J	+15	–	14,697	Form 4
2025-05-09	Matz MarilynDirector	Grant or award A	+2,971	–	19,173	Form 4
2025-05-09	Johnson MercedesDirector	Grant or award A	+2,971	–	15,739	Form 4
2025-05-09	Tufano Paul JDirector	Grant or award A	+2,971	–	63,563	Form 4
2025-05-09	Maddock Ernest eDirector	Grant or award A	+2,971	–	9,584	Form 4
2025-05-09	Herweck PeterDirector	Grant or award A	+2,971	–	14,682	Form 4
2025-05-09	van Kralingen Bridget ADirector	Grant or award A	+2,971	–	5,556	Form 4
2025-03-27	Tufano Paul JDirector	Grant or award A	+554	–	60,592	Form 4
2025-03-27	Herweck PeterDirector	Grant or award A	+320	–	11,711	Form 4
2025-03-14	Tufano Paul JDirector	Other J	+73	–	60,038	Form 4
2025-03-14	Herweck PeterDirector	Other J	+11	–	11,391	Form 4
2025-03-14	Maddock Ernest eDirector	Other J	+3	–	6,613	Form 4
2025-02-03	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−199	111.09	7,223	Form 4
2025-02-03	Wood John FrancisPresident, System Test Group	Shares withheld for tax F	−191	111.09	14,137	Form 4
2025-02-03	Kumar UjjwalPresident, Teradyne Robotics	Shares withheld for tax F	−399	111.09	17,026	Form 4
2025-02-03	Lukez JohnPresident, LitePoint Corp.	Shares withheld for tax F	−94	111.09	4,185	Form 4
2025-02-03	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−3,526	111.09	98,002	Form 4
2025-02-03	Mehta SanjayVP and Chief Financial Officer	Shares withheld for tax F	−1,296	111.09	37,960	Form 4
2025-02-03	Burns Richard JohnPresident, Semiconductor Test	Shares withheld for tax F	−371	111.09	25,636	Form 4
2025-01-31	Driscoll RyanVP, General Counsel, Secretary	Grant or award A	+3,110	–	7,422	Form 4
2025-01-31	Wood John FrancisPresident, System Test Group	Grant or award A	+4,319	–	14,328	Form 4
2025-01-31	Kumar UjjwalPresident, Teradyne Robotics	Grant or award A	−4,405	–	17,425	Form 4
2025-01-31	Lukez JohnPresident, LitePoint Corp.	Grant or award A	+1,296	–	4,279	Form 4
2025-01-31	Smith Gregory StephenDirector, President and CEO	Grant or award A	+26,773	–	101,528	Form 4
2025-01-31	Mehta SanjayVP and Chief Financial Officer	Grant or award A	+8,810	–	39,256	Form 4
2025-01-31	Burns Richard JohnPresident, Semiconductor Test	Grant or award A	+4,794	–	26,007	Form 4
2025-01-29	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−384	122.05	74,755	Form 4
2025-01-29	Lukez JohnPresident, LitePoint Corp.	Shares withheld for tax F	−136	122.05	2,983	Form 4
2025-01-29	Wood John FrancisPresident, System Test Group	Shares withheld for tax F	−123	122.05	10,009	Form 4
2025-01-29	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−77	122.05	4,825	Form 4
2025-01-29	Mehta SanjayVP and Chief Financial Officer	Shares withheld for tax F	−576	122.05	36,448	Form 4
2025-01-28	Smith Gregory StephenDirector, President and CEO	Grant or award A	+4,014	–	77,033	Form 4
2025-01-28	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−1,894	121.95	75,139	Form 4
2025-01-28	Lukez JohnPresident, LitePoint Corp.	Shares withheld for tax F	−138	121.95	3,119	Form 4
2025-01-28	Wood John FrancisPresident, System Test Group	Shares withheld for tax F	−128	121.95	10,132	Form 4
2025-01-28	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−82	121.95	4,902	Form 4
2025-01-28	Burns Richard JohnPresident, Semiconductor Test	Grant or award A	+3,345	–	23,918	Form 4
2025-01-28	Burns Richard JohnPresident, Semiconductor Test	Shares withheld for tax F	−1,228	121.95	22,690	Form 4
2025-01-28	Mehta SanjayVP and Chief Financial Officer	Grant or award A	+6,690	–	39,998	Form 4
2025-01-28	Mehta SanjayVP and Chief Financial Officer	Shares withheld for tax F	−2,974	121.95	37,024	Form 4
2025-01-27	Burns Richard JohnPresident, Semiconductor Test	Shares withheld for tax F	−420	120.27	20,980	Form 4/A
2025-01-27	Lukez JohnPresident, LitePoint Corp.	Shares withheld for tax F	−172	120.27	3,257	Form 4
2025-01-27	Mehta SanjayVP and Chief Financial Officer	Shares withheld for tax F	−821	120.27	35,097	Form 4
2025-01-27	Wood John FrancisPresident, System Test Group	Shares withheld for tax F	−147	120.27	10,260	Form 4
2025-01-27	Smith Gregory StephenDirector, President and CEO	Shares withheld for tax F	−1,641	120.27	73,019	Form 4
2025-01-27	Driscoll RyanVP, General Counsel, Secretary	Shares withheld for tax F	−114	120.27	5,091	Form 4
2024-12-18	Herweck PeterDirector	Grant or award A	+222	–	11,372	Form 4
2024-12-18	Herweck PeterDirector	Other J	+8	–	11,380	Form 4
2024-12-18	Tufano Paul JDirector	Grant or award A	+383	–	59,915	Form 4
2024-12-18	Tufano Paul JDirector	Other J	+50	–	59,965	Form 4
2024-12-18	Maddock Ernest eDirector	Other J	+2	–	6,610	Form 4

How to read it

Buy, sale: Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan: A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after: The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value: Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

Teradyne's scores and multiples ›