Teradyne Ownership & Insider Activity

Teradyne (TER) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.1% of shares outstanding. Institutional investors hold 72.5%. Over the past 90 days, insiders made 9 sales worth $6.5M.

Shares Outstanding

156.556M

Shares Float

138.054M

Insider Shares Owned

1.774M

Insider % Owned

1.1%

Institutional Shares Held

113.272M

Institutional % Held

72.5%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$6.5M total

Net Activity

Net Selling

Net Value (90d)

-$6.5M

Teradyne Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 1, 2026	MERCEDES JOHNSON	DIRECTOR	SELL	167.000	$341.30	$57K
Aug 17, 2026	Stephen Gregory Smith	PRESIDENT AND CEO	SELL	4.000K	$425.00	$1.7M
Aug 17, 2026	MARILYN MATZ	DIRECTOR	SELL	1.200K	$425.00	$510K
Aug 3, 2026	MERCEDES JOHNSON	DIRECTOR	SELL	166.000	$358.15	$59K
Jul 15, 2026	Stephen Gregory Smith	PRESIDENT AND CEO	SELL	4.000K	$356.31	$1.4M
Jul 15, 2026	MARILYN MATZ	DIRECTOR	SELL	1.200K	$356.31	$428K
Jul 1, 2026	MERCEDES JOHNSON	DIRECTOR	SELL	167.000	$460.00	$77K
Jun 15, 2026	MARILYN MATZ	DIRECTOR	SELL	1.200K	$423.03	$508K
Jun 15, 2026	Stephen Gregory Smith	PRESIDENT AND CEO	SELL	4.000K	$423.03	$1.7M
Jun 2, 2026	MERCEDES JOHNSON	DIRECTOR	SELL	167.000	$369.74	$62K
May 21, 2026	John Shannon Poulin	PRESIDENT, SEMICONDUCTOR TEST	SELL	352.000	$215.12	$876K
May 21, 2026	MARILYN MATZ	DIRECTOR	SELL	400.000	$350.00	$140K
May 15, 2026	Stephen Gregory Smith	PRESIDENT AND CEO	SELL	4.000K	$205.54	$2.6M
May 15, 2026	MARILYN MATZ	DIRECTOR	SELL	800.000	$338.98	$271K
May 7, 2026	Ryan Driscoll	VP, GENERAL COUNSEL, SECRETARY	SELL	680.000	$377.60	$257K
Apr 8, 2026	Regan Mills	PRESIDENT, PRODUCT TEST	SELL	16.000	$342.17	$5K
Apr 6, 2026	MERCEDES JOHNSON	DIRECTOR	SELL	625.000	$312.20	$195K
Apr 1, 2026	Regan Mills	PRESIDENT, PRODUCT TEST	SELL	474.000	$300.87	$143K

Date	Member	Party	Chamber	Action	Amount
Mar 27, 2026	Alan Armstrong	R	Senate	P	$1,001 - $15,000
Oct 31, 2025	Lisa McClain	R	House	S	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	S	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	P	$1,001 - $15,000
Jun 17, 2025	Lisa McClain	R	House	P	$1,001 - $15,000
Apr 1, 2025	Julie Johnson	D	House	S	$1,001 - $15,000
Mar 3, 2025	Julie Johnson	D	House	S	$1,001 - $15,000
Feb 12, 2025	Julie Johnson	D	House	P	$1,001 - $15,000
May 3, 2024	Tommy Tuberville	R	Senate	S	$1,001 - $15,000
May 3, 2024	Tommy Tuberville	R	Senate	S	$1,001 - $15,000