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 74.0%. Over the past 90 days, insiders made 11 sales worth $5.9M.

Shares Outstanding

156.556M

Shares Float

138.054M

Insider Shares Owned

1.769M

Insider % Owned

1.1%

Institutional Shares Held

115.748M

Institutional % Held

74.0%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$5.9M total

Net Activity

Net Selling

Net Value (90d)

-$5.9M

Teradyne Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 21, 2026	MARILYN MATZ	DIRECTOR	SELL	400.000	$350.00	$140K
Oct 15, 2026	Stephen Gregory Smith	PRESIDENT AND CEO	SELL	4.000K	$341.28	$1.4M
Oct 15, 2026	MARILYN MATZ	DIRECTOR	SELL	800.000	$341.28	$273K
Oct 1, 2026	MERCEDES JOHNSON	DIRECTOR	SELL	167.000	$402.90	$67K
Sep 17, 2026	MARILYN MATZ	DIRECTOR	SELL	400.000	$351.11	$140K
Sep 15, 2026	Stephen Gregory Smith	PRESIDENT AND CEO	SELL	4.000K	$337.83	$1.4M
Sep 15, 2026	MARILYN MATZ	DIRECTOR	SELL	800.000	$337.83	$270K
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

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