Teradyne, Inc
Held by 15 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 880770102 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide
In plain English: 15 of the investors we track own this stock. In the latest quarter, 4 of them bought more of it and 11 sold some or all of theirs (2 bought it for the first time). That tells you what they did last quarter — not what the stock will do next.
Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer
Managers holding
15
+1 vs last quarter (like-for-like)
Total value held
$2.93B
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
0.5%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
-$728.72M
-28.2% vs last quarter
Net shares bought
-4.9M
Est. net flow -$2.36B
Quarter activity
4 bought · 11 sold
2 new · 1 sold out
Tracked capital in this stock
Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).
Aggregate buying and selling
Net share change reported each quarter
Who owns TER?
🔒 The 'who added and who trimmed' chart is a Plus feature
You're viewing the Free plan. Upgrade to unlock The 'who added and who trimmed' chart — every paid plan starts with a 7-day free trial, and you can cancel in two clicks.
Who owns TER? — Q2 2026
Holders ranked by position size, with each one's quarter-over-quarter change.
Column filters
| # | Manager | Fund | Shares | Value ↑ | % of their portfolio | QoQ | Δ shares | Δ shares % | Est. Δ value ⓘChange in shares × this quarter's price |
|---|---|---|---|---|---|---|---|---|---|
| 15 | Baillie Gifford | Baillie Gifford & Co | 201 | $97.25K | 0.0% | Added | +48 | +31.4% | +$23.22K |
| 14 | Bridgeway | Bridgeway Capital Management | 7.35K | $3.56M | 0.1% | Reduced | -1.8K | -19.2% | -$846.72K |
| 13 | Fred Alger | Fred Alger Management | 17.41K | $8.43M | 0.0% | New | +17.4K | — | +$8.43M |
| 12 | Mawer | Mawer Investment Management | 36.00K | $17.42M | 0.1% | New | +36.0K | — | +$17.42M |
| 11 | Israel Englander | Millennium Management | 41.30K | $19.98M | 0.0% | Reduced | -610.8K | -93.7% | -$295.53M |
| 10 | Ken Griffin | Citadel Advisors | 67.52K | $32.67M | 0.0% | Reduced | -283.8K | -80.8% | -$137.32M |
| 9 | Parnassus Investments | Parnassus Investments LLC | 78.41K | $37.94M | 0.1% | Reduced | -3.0K | -3.7% | -$1.47M |
| 8 | Ray Dalio | Bridgewater Associates | 98.63K | $47.72M | 0.2% | Reduced | -240.3K | -70.9% | -$116.28M |
| 7 | David Shaw | D.E. Shaw & Co. | 198.78K | $96.18M | 0.1% | Reduced | -667.9K | -77.1% | -$323.17M |
| 6 | Jim Simons | Renaissance Technologies | 218.10K | $105.53M | 0.1% | Added | +53.2K | +32.3% | +$25.74M |
| 5 | Steve Cohen | Point72 Asset Management | 458.71K | $221.94M | 0.3% | Reduced | -1.8M | -79.9% | -$883.50M |
| 4 | Two Sigma | Two Sigma Investments | 469.08K | $226.96M | 0.2% | Reduced | -370.3K | -44.1% | -$179.19M |
| 3 | Cathie Wood | ARK Investment Management LLC | 644.78K | $311.97M | 2.0% | Reduced | -600.3K | -48.2% | -$290.47M |
| 2 | Stephen Mandel | Lone Pine Capital | 1.49M | $722.41M | 4.4% | Reduced | -379.8K | -20.3% | -$183.76M |
| 1 | Norges Bank | Norges Bank Investment Management | 2.22M | $1.08B | 0.1% | — | — | — | — |
Column filters
| Manager | Fund | Shares sold | Value last quarter ↓ |
|---|---|---|---|
| Jeremy Grantham | GMO | -932 | $276.30K |
Politician trades
Column filters
| Politician | Date | Ticker | Asset | Type | Reported range ⓘThe dollar range the politician reported. Exact amounts are not disclosed. | Est. size ⓘOur estimate only: the midpoint of the reported range. | Owner | Account ⓘSubholding Of: the account the trade was in, as named on the report (e.g. an IRA or a brokerage account). The same stock bought on the same day in different accounts is a separate trade in each account. | Filed ↓ | Filing delay ⓘDays between the trade and the report. Over 45 days is late under the STOCK Act. | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Michael T. McCaul Politician | Apr 29, 2026 | TER | TERADYNE INC scanned | Purchase | $15,001 - $50,000 | Est. $32,500 (midpoint of reported range $15,001–$50,000) | Spouse | — | May 4, 2026 | 5 days | PTR ↗ |
| Michael T. McCaul Politician | Feb 4, 2026 | TER | TERADYNE INC COM scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Mar 10, 2026 | 34 days | PTR ↗ |
| Lisa McClain Politician | Oct 30, 2025 | TER | Teradyne, Inc. (TER) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Nov 21, 2025 | 22 days | PTR ↗ |
| Lisa McClain Politician | Oct 30, 2025 | TER | Teradyne, Inc. (TER) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Nov 21, 2025 | 22 days | PTR ↗ |
| Lisa McClain Politician | Oct 31, 2025 | TER | Teradyne, Inc. (TER) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Nov 21, 2025 | 21 days | PTR ↗ |
| Lisa McClain Politician | Jun 17, 2025 | TER | Teradyne, Inc. (TER) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Aug 13, 2025 | 57 days Late | PTR ↗ |
| Ro Khanna Politician | May 19, 2025 | TER | TERADYNE INC CMN scanned | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Jun 10, 2025 | 22 days | PTR ↗ |
| Julie Johnson Politician | Apr 1, 2025 | TER | Teradyne, Inc. (TER) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | — | May 14, 2025 | 43 days | PTR ↗ |
| Ro Khanna Politician | Apr 23, 2025 | TER | TERADYNE INC CMN scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | May 12, 2025 | 19 days | PTR ↗ |
| Julie Johnson Politician | Mar 3, 2025 | TER | Teradyne, Inc. (TER) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | — | Apr 14, 2025 | 42 days | PTR ↗ |
| Julie Johnson Politician | Feb 12, 2025 | TER | Teradyne, Inc. (TER) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | — | Mar 12, 2025 | 28 days | PTR ↗ |
| Ro Khanna Politician | Feb 19, 2025 | TER | TERADYNE INC CMN scanned | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | — | Mar 6, 2025 | 15 days | PTR ↗ |
| Ro Khanna Politician | Dec 16, 2024 | TER | TERADYNE INC CMN scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Jan 8, 2025 | 23 days | PTR ↗ |
| Ro Khanna Politician | Nov 15, 2024 | TER | TERADYNE INC CMN a scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Dec 5, 2024 | 20 days | PTR ↗ |
| Ro Khanna Politician | Aug 5, 2024 | TER | TERADYNE INC CMN scanned | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Sep 6, 2024 | 32 days | PTR ↗ |
| Ro Khanna Politician | May 29, 2024 | TER | TERADYNE INC CMN scanned | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | — | — | Jun 5, 2024 | 7 days | PTR ↗ |