Teradyne Inc
TER · US
Teradyne Inc is held by 8 of the 24 tracked investors in their latest 13F filings. The largest position is Norges Bank's at $1.1B, 0.11% of that portfolio. Versus the prior quarter, 2 added, 6 trimmed and 0 bought new. In the last 90 days insiders sold 1 times ($1.4M) and bought 0 times on the open market.
Big investors holding this stock
Latest 13F of the 24 tracked investors. Common shares only.
| Investor | Value ($) | vs prior quarter |
|---|---|---|
| Norges Bank weight 0.11% · Q2 2026 |
1.1B | ▲ 8% |
| Lone Pine Capital weight 4.42% · Q2 2026 |
722M | ▼ 20% |
| ARK Investment Management weight 2.03% · Q2 2026 |
312M | ▼ 48% |
| National Pension Service (Korea) weight 0.09% · Q2 2026 |
137M | ▼ 13% |
| Korea Investment Corporation weight 0.12% · Q2 2026 |
60.8M | ▼ 58% |
| Bridgewater Associates weight 0.20% · Q2 2026 |
47.7M | ▼ 71% |
| Temasek Holdings weight 0.11% · Q2 2026 |
39.3M | ▼ 9% |
| Baillie Gifford weight 0.00% · Q2 2026 |
0.1M | ▲ 31% |
Insider trades (90 days)
SEC Form 4| Insider | Trade | Amount ($) |
|---|---|---|
| Smith Gregory Stephen CEO · 9/15 |
Sell Plan | 1.4M |
Questions
Which big investors own Teradyne Inc?
Norges Bank ($1.1B), Lone Pine Capital ($722M), ARK Investment Management ($312M), National Pension Service (Korea) ($137M), Korea Investment Corporation ($60.8M) and 3 more, per their latest 13F filings.
Does Warren Buffett own Teradyne Inc?
Berkshire Hathaway did not report it in its latest 13F.
Does Korea's National Pension Service own Teradyne Inc?
Yes, $137M as of 2026-06-30 (0.09% of its US holdings).
Have Teradyne Inc insiders been selling?
1 open-market sales ($1.4M) and 0 purchases in the last 90 days; 1 of the sales were under pre-arranged 10b5-1 plans.
Restated and computed from SEC (13F, 13D/G, Form 4) and DART filings and NPS public data. Filings describe a past date and may differ from current holdings (13F: quarter end, up to 45 days later). Not investment advice.
Sources: SEC EDGAR, DART, data.go.kr (NPS), OpenFIGI. See Methodology for how figures are computed.