TER
Teradyne Inc
3 of the 83 super-investors we track hold TER, worth a combined $756M per their latest 13F filings. The largest position: Stephen Mandel at 4.4% of their portfolio. This quarter the cohort logged 0 buys and 1 sell on the name. Conviction score: 22 of 100 (how strongly the cohort backs it) — ranked #611 of 742 stocks. The stock is up 19.1x since a tracked investor first held it at conviction size (Q1 2014 or earlier). Conviction rising: 1 more super-investor hold it than in 2026Q1.
Held through it: Vulcan Value Partners (6q straight), Stephen Mandel (1q straight), Bill Miller (2q straight) and 1 more. All multibaggers the cohort held →
Why super-investors own TER
TER is held by 3 super-investors in our cohort, with a combined position value of $756M. The highest-conviction owner is Stephen Mandel at 4.4% of their portfolio. Cohort ownership has grown from 1 to 3 over the last four quarters — net interest is rising. This quarter the cohort registered 1 trimmed.
AI-synthesized from 13F filings. Not investment advice.
Cohort owners over time
2016Q3 → 2026Q2How many of the cohort members held this stock each quarter.
Owners (3) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Stephen Mandel | 4.4% | 2q | $722M | 1,493,080 |
| 2 | Joel Greenblatt | <0.1% | 40q | $33M | 67,515 |
| 3 | Lee Ainslie | <0.1% | 10q | $1M | 2,101 |
Owners of TER also hold
Congress is trading TER
Congress tracker →- Michael T. McCaulbought$50,001 - $100,000 · 2026-04-29
- Lisa McClainsold$1,001 - $15,000 · 2025-10-31
- Lisa McClainsold$1,001 - $15,000 · 2025-10-30
- Lisa McClainbought$1,001 - $15,000 · 2025-10-30
- Lisa McClainbought$1,001 - $15,000 · 2025-06-17 · late
- Julie Johnsonsold$1,001 - $15,000 · 2025-04-01
STOCK Act periodic transaction reports; amounts are disclosed ranges. Who files late →
Recent activity (1)
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Stephen Mandel | TRIM | 4.4% | -20% | $722M | Aug 14, 2026 |
Long US equity 13F-HR filings only. CUSIP 880770102. Not investment advice.