Teradyne (TER) Held by Superinvestors
TERADYNE INC (TER) is currently held by 5 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $1.18B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Lone Pine Capital is currently the largest disclosed institutional shareholder of TER tracked by InsiderSet, reporting ownership valued at approximately $722.41M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $601.23M, representing an estimated loss of -16.77% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed TER value among the investors covered in this analysis. Major shareholders include Lone Pine Capital, ARK Invest, Renaissance Technologies LLC, and several other long-term asset managers with concentrated positions in TERADYNE INC (TER).
This page ranks the largest institutional TER shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Lone Pine Capital | Stephen Mandel | 4.42% | 1,493,080 | $722,411,827 | $601,233,454 | -$121,178,373 | -16.77% |
| ARK Invest | Cathie Wood | 2.03% | 644,782 | $311,971,420 | $259,640,816 | -$52,330,604 | -16.77% |
| Renaissance Technologies LLC | Jim Simons | 0.15% | 218,100 | $105,525,504 | $87,824,508 | -$17,700,996 | -16.77% |
| Parnassus Endeavor Fund | Parnassus Investments | 0.10% | 78,406 | $37,935,959 | $31,572,528 | -$6,363,431 | -16.77% |
| Sequoia Financial Advisors | 0.02% | 9,114 | $4,409,814 | $3,670,026 | -$739,788 | -16.78% |
Frequently asked questions about TER
Who are the largest superinvestors holding TER?
The largest superinvestors holding TER in the latest SEC Form 13F filings include Lone Pine Capital, ARK Invest, Renaissance Technologies LLC, Parnassus Endeavor Fund, and Sequoia Financial Advisors. InsiderSet ranks these superinvestors by their latest reported TER position.
What does the TER superinvestors page include?
This page tracks TER positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. TERADYNE INC (TER) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold TER?
InsiderSet currently tracks 5 superinvestors reporting TER holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own TER.
How much TER stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $1.18B in TER holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were TER superinvestor holdings last updated?
The latest TER superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor TER holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its TER position after the reporting date.
Are superinvestors buying or selling TER?
Buying and selling can be analyzed by comparing TER positions across consecutive 13F reporting periods. InsiderSet's TER Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View TER ownership changes.
How have superinvestor TER holdings changed over time?
InsiderSet tracks TER holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.