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TER · Teradyne, Inc

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Market Cap
$52.94B
Shares
156.34M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 1,436
Total Value: $77,365,550,697
Total Shares: 160,556,101
Showing 1–100 of 1,494 holdings by value · page 1 of 15

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 1,436 13F filers · Δ vs Mar 31, 2026
Top Holder
12.2%
Sep 2023 → Jun 2026 · range 10.9% – 13.0%
+1.3 pts
Top 5
32.7%
Sep 2023 → Jun 2026 · range 31.0% – 39.8%
+1.7 pts
Top 10
46.6%
Sep 2023 → Jun 2026 · range 40.7% – 50.9%
+5.9 pts
HHI
328
Sep 2023 → Jun 2026 · range 284 – 427
Broadly held+44

Quarterly Activity

vs Mar 31, 2026
New
337
Increased
497
Decreased
470
Sold Out
139
Unchanged
132
Holder count: +198
Institutional value: +74.0%
Shares held: +7.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 1,494
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 97210 CUSIP 880770102 13F (30d) 809 filings 782 filers Visit website Investor relations