TER
Teradyne, Inc. · Technology · Semiconductors
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 1.56M | $619.06M | n/a | n/a |
| Q2 2026 | 168 | -2 | 115.37M | $55.58B | +5 | −8 |
| Q1 2026 | 174 | +6 | 111.33M | $32.87B | +8 | −3 |
| Q4 2025 | 167 | +1 | 127.25M | $24.48B | +2 | n/a |
| Q3 2025 | 24 | 0 | 82.34M | $11.33B | +1 | −2 |
| Q2 2025 | 22 | +1 | 67.09M | $6.03B | +1 | n/a |
| Q1 2025 | 18 | -1 | 22.40M | $1.85B | n/a | −1 |
| Q4 2024 | 19 | +2 | 20.18M | $2.54B | +2 | n/a |
| Q3 2024 | 16 | -1 | 10.79M | $1.44B | n/a | −1 |
| Q2 2024 | 17 | n/a | 13.94M | $2.07B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | 1.07M | +1035.5% | $430.76M | 0.4% | ▲ Add | 4 | SEC ↗ |
| 2 | Wealth Enhancement Advisory… | 487.50K | +271.8% | $188.27M | 0.3% | ▲ Add | 4 | SEC ↗ |
| 3 | TD Waterhouse Canada Inc. | 61 | -99.5% | $25,375 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 11.80K shares, $3,498 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 800 sh · $273,024
Officer, Director · 4.00K sh · $1.37M
Director · 400 sh · $140,444
Director · 800 sh · $270,264
Director · 167 sh · $56,997
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology