StockCIK 97210

TERADYNE, INC (TER): Insider Trades and Fund Holdings

In the past 12 months, TERADYNE, INC insiders reported 0 open-market purchases worth $0 and 10 sales worth $5.87M; 10 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months

$0Bought by insiders, 12 months

$5.87MSold by insiders, 12 months

3Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 22, 2026.

Recent TER insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 22	Oct 21	Marilyn MatzDirector	Director	▼ SELL10b5-1	400	350.00	$140K	−3.1%	Form 4 ↗
Oct 19	Oct 15	Gregory Stephen SmithCEO	CEO	▼ SELL10b5-1	4,000	341.28	$1.37M	−3.7%	Form 4 ↗
Oct 19	Oct 15	Marilyn MatzDirector	Director	▼ SELL10b5-1	800	341.28	$273K	−5.8%	Form 4 ↗
Oct 2	Oct 1	Mercedes JohnsonDirector	Director	▼ SELL10b5-1	167	402.90	$67K	−2.6%	Form 4 ↗
Sep 18	Sep 17	Marilyn MatzDirector	Director	▼ SELL10b5-1	400	351.11	$140K	−2.8%	Form 4 ↗
Sep 16	Sep 15	Gregory Stephen SmithCEO	CEO	▼ SELL10b5-1	4,000	337.83	$1.35M	−3.6%	Form 4 ↗
Sep 16	Sep 15	Marilyn MatzDirector	Director	▼ SELL10b5-1	800	337.83	$270K	−5.3%	Form 4 ↗
Sep 2	Sep 1	Mercedes JohnsonDirector	Director	▼ SELL10b5-1	167	341.30	$57K	−2.6%	Form 4 ↗
Aug 18	Aug 17	Gregory Stephen SmithCEO	CEO	▼ SELL10b5-1	4,000	425.00	$1.70M	−3.4%	Form 4 ↗
Aug 18	Aug 17	Marilyn MatzDirector	Director	▼ SELL10b5-1	1,200	425.00	$510K	−7.4%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Bought	Sells	Sold	Latest
Marilyn Matz	Director	$0	5	$1.33M	Oct 22, 2026
Gregory Stephen Smith	CEO	$0	3	$4.42M	Oct 19, 2026
Mercedes Johnson	Director	$0	2	$124K	Oct 2, 2026

Tracked funds that report TER

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Lone Pine Capital	Q2 2026	1,493,080	$722.4M	4.42%	▼ −20.3%
Renaissance Technologies	Q2 2026	218,100	$105.5M	0.15%	▲ +32.3%
Bridgewater Associates	Q2 2026	98,627	$47.7M	0.20%	▼ −70.9%

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →