Teradyne, Inc. (TER) ownership: Top institutional holder: BlackRock, Inc. ($4.83B). Insider activity: Net Seller (3 buys, 17 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 16305187.00 | $4.83B | 2026-03-31 |
| VANGUARD GROUP INC | 20298150.00 | $3.93B | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 10176191.00 | $3.02B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8602918.00 | $2.55B | 2026-03-31 |
| STATE STREET CORP | 6970426.00 | $2.07B | 2026-03-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 4368680.00 | $1.29B | 2026-03-31 |
| FMR LLC | 3609505.00 | $1.07B | 2026-03-31 |
| AMERIPRISE FINANCIAL INC | 2843976.00 | $842.98M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-06-02 | |
| Buy | null | 2026-06-02 |
Back to TER overview · TER earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.