TER TERADYNE, INC: institutional ownership and insider trading
1,494 funds reported holding $81.9B of TERADYNE, INC in their latest 13F filings; in Q2 2026 funds net bought $5.19B, with 318 new positions and 127 funds selling out; over the last 12 months insiders bought $0 and sold $16.0M on the open market.
Famous investors holding TER
- Stephen Mandel (Lone Pine Capital): $722M, 4.4% of the portfolio
- Cathie Wood (ARK Investment Management): $312M, 2.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $47.7M, 0.2% of the portfolio
- Two Sigma (Two Sigma Investments): $233M, 0.2% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $106M, 0.2% of the portfolio
- Ken Griffin (Citadel Advisors): $542M, 0.1% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $103M, 0.1% of the portfolio
- Izzy Englander (Millennium Management): $112M, 0.0% of the portfolio
- Lee Ainslie (Maverick Capital): $1.02M, 0.0% of the portfolio
Largest institutional holders of TER
- BlackRock, Inc. (BLK) — $9.40B
- VANGUARD CAPITAL MANAGEMENT LLC — $4.95B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $4.18B
- VANGUARD GROUP INC — $3.93B
- STATE STREET CORP (STT, STT-PG) — $3.53B
- Invesco Ltd. (IVZ) — $3.23B
- JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $2.58B
- JANE STREET GROUP, LLC — $2.54B
- GEODE CAPITAL MANAGEMENT, LLC — $2.22B
- FMR LLC — $1.99B
Recent TER insider trades
- Oct 21, 2026: Matz Marilyn sold 400 shares ($140K)
- Oct 15, 2026: Matz Marilyn sold 800 shares ($273K)
- Oct 15, 2026: Smith Gregory Stephen sold 4,000 shares ($1.37M)
- Oct 1, 2026: Johnson Mercedes sold 167 shares ($67.3K)
Members of Congress trading TER
- Oct 31, 2025: Lisa C. McClain sold $1.00K–$15.0K
- Oct 30, 2025: Lisa C. McClain bought $1.00K–$15.0K
- Oct 30, 2025: Lisa C. McClain sold $1.00K–$15.0K
- Jun 17, 2025: Lisa C. McClain bought $1.00K–$15.0K
- Apr 1, 2025: Julie Johnson sold $1.00K–$15.0K
- Mar 3, 2025: Julie Johnson sold $1.00K–$15.0K
- Feb 12, 2025: Julie Johnson bought $1.00K–$15.0K
5%+ owners
- BlackRock, Inc.: 11.1% (Schedule 13G/A, filed Jul 30, 2026)
- Vanguard Capital Management: 7.5% (Schedule 13G, filed Apr 29, 2026)
- Vanguard Portfolio Management: 5.5% (Schedule 13G, filed Apr 29, 2026)