GuruTrack
TER

TER

TERADYNE INC

Data as of 2026 Q1 (03-31) · 13F snapshot

Summary
TERADYNE INC (TER) is held by 11 tracked hedge-fund managers, a combined reported value of ~$2.43B; the largest are Steven Cohen, Stephen Mandel, Cathie Wood. This quarter: 1 new, 3 added, 4 trimmed. 18 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Mixed
Gurus holding11
Congress trades18
Price$334.77vs quarter-end+12.92%
Sectors3
This quarter's moves
New1
Added3
Trimmed / sold4
Top holderSteven Cohen
Steven CohenTrim
Value $677.33M1.2% of portfolio2,284,7182026 Q1
Stephen MandelNew large stake
Value $555.23M4.4% of portfolio1,872,8762026 Q1
Cathie WoodTrim
Value $369.13M2.9% of portfolio1,245,1222026 Q1
Ken GriffinCALL—
Value $114.58M— of portfolio386,5002026 Q1
Ray DalioAdd
Value $100.48M0.4% of portfolio338,9462026 Q1
Dan LoebNew large stake
Value $84.45M2.1% of portfolio5,000,0002012 Q1
Ken GriffinPUT—
Value $59.53M— of portfolio200,8002026 Q1
Izzy EnglanderPUT—
Value $38.98M— of portfolio131,5002026 Q1
Izzy EnglanderCALL—
Value $35.04M— of portfolio118,2002026 Q1
Philippe LaffontHold
Value $6.78M0.1% of portfolio183,2532018 Q3
Chase ColemanNew
Value $2.54M0.5% of portfolio100,0002003 Q4
Steven CohenCALL—
Value $2.05M— of portfolio10,6002025 Q4
Steven CohenPUT—
Value $754.9K— of portfolio3,9002025 Q4

Insider Trading

Officers · directors · Form 4

  • Marilyn Matz

    Director

    Sell$427.6K
    1,200 @ $356.31Traded 2026-07-15Filed 2026-07-16

  • Gregory Stephen Smith

    President and CEO

    Sell$1.43M
    4,000 @ $356.31Traded 2026-07-15Filed 2026-07-16

  • Mercedes Johnson

    Director

    Sell$76.8K
    167 @ $460.00Traded 2026-07-01Filed 2026-07-02

  • Andrew Chisholm Henry

    Director

    Buy
    52 @ $0.00Traded 2026-06-25Filed 2026-06-29

  • Peter Herweck

    Director

    Buy
    63 @ $0.00Traded 2026-06-25Filed 2026-06-29

  • Paul J Tufano

    Director

    Buy
    116 @ $0.00Traded 2026-06-25Filed 2026-06-29

  • Marilyn Matz

    Director

    Sell$507.6K
    1,200 @ $423.03Traded 2026-06-15Filed 2026-06-16

  • Gregory Stephen Smith

    President and CEO

    Sell$1.69M
    4,000 @ $423.03Traded 2026-06-15Filed 2026-06-16

  • Paul J Tufano

    Director

    Sell
    19 @ $0.00Traded 2026-06-12Filed 2026-06-16

  • Peter Herweck

    Director

    Sell
    4 @ $0.00Traded 2026-06-12Filed 2026-06-16

  • Ernest E Maddock

    Director

    Sell
    2 @ $0.00Traded 2026-06-12Filed 2026-06-16

  • Mercedes Johnson

    Director

    Sell$61.7K
    167 @ $369.74Traded 2026-06-02Filed 2026-06-03

  • Jean Pierre Hathout

    President, Teradyne Robotics

    Sell$68.3K
    174 @ $392.62Traded 2026-06-01Filed 2026-06-03

  • Jean Pierre Hathout

    President, Teradyne Robotics

    Sell$98.6K
    267 @ $369.47Traded 2026-06-01Filed 2026-06-03

  • Shannon John Poulin

    President, Semiconductor Test

    Buy$234.9K
    2,843 @ $82.61Traded 2026-05-21Filed 2026-05-26

  • Shannon John Poulin

    President, Semiconductor Test

    Sell$348.1K
    1,008 @ $345.37Traded 2026-05-21Filed 2026-05-26

  • Shannon John Poulin

    President, Semiconductor Test

    Sell$232.9K
    656 @ $355.00Traded 2026-05-21Filed 2026-05-26

  • Shannon John Poulin

    President, Semiconductor Test

    Sell$529.7K
    1,531 @ $345.98Traded 2026-05-21Filed 2026-05-26

  • Marilyn Matz

    Director

    Sell$140.0K
    400 @ $350.00Traded 2026-05-21Filed 2026-05-26

  • Gregory Stephen Smith

    President and CEO

    Buy$331.4K
    4,597 @ $72.10Traded 2026-05-15Filed 2026-05-19

  • Marilyn Matz

    Director

    Sell$271.2K
    800 @ $338.98Traded 2026-05-15Filed 2026-05-19

  • Gregory Stephen Smith

    President and CEO

    Sell$2.91M
    8,597 @ $338.98Traded 2026-05-15Filed 2026-05-19

  • Marilyn Matz

    Director

    Buy
    668 @ $0.00Traded 2026-05-08Filed 2026-05-12

  • Bridget A Van Kralingen

    Director

    Buy
    668 @ $0.00Traded 2026-05-08Filed 2026-05-12

Insider transactions are public SEC Form 4 disclosures (company officers, directors, 10% owners), for research only — not investment advice.

ARK ETF holdings

Cathie Wood · daily
ARK total shares held · drag to inspect
2026-07-28holds 574,003
  • ARKQweight in fund6.04%$114.00M
  • ARKXweight in fund3.59%$28.52M
  • ARKKweight in fund0.86%$49.64M

ARK publishes full ETF holdings daily (SEC Rule 6c-11). Line shows ARK's total shares held over time (not price); markers are buy/sell days. Derived from public CSVs — research only, not investment advice.

Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.