RKWD

ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|

Rockwood Research

TER

TERADYNE, INC

Instruments For Meas & Testing of Electricity & Elec Signals · SIC 3825CIK 97210Held by 10 tracked managersEDGAR filings ↗10-K/10-Q ↗

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11 of 11 reported changes in each tracked manager’s latest 13F vs its prior quarter (Q2 2026). Every change is listed — no cap.

ManagerActionShare change% chgEnding % of 13F bookPosition size

Maverick Capital

Q2 2026Position history →

New+2,101—0.01%$1.0M

Renaissance Technologies

Q2 2026Position history →

Add+53,200+32.3%0.15%$105.5M

Fuller & Thaler Asset Management

Q2 2026Position history →

Add+11,553+6.0%0.27%$99.5M

Q2 2026Position history →

Add+489+28.3%0.01%$1.1M

Lone Pine Capital

Q2 2026Position history →

Trim(379,796)(20.3%)4.4%$722.4M

ARK Investment Management

Q2 2026Position history →

Trim(600,340)(48.2%)2.0%$312.0M

Adage Capital Management

Q2 2026Position history →

Trim(800)(0.6%)0.09%$67.5M

Bridgewater Associates

Q2 2026Position history →

Trim(240,319)(70.9%)0.20%$47.7M

Capital Research Global Investors

Q2 2026Position history →

Trim(283)(0.4%)<0.01%$33.8M

Ashford Capital Management

Q2 2026Position history →

Trim(1,194)(10.2%)0.54%$5.1M

Holocene Advisors

Q2 2026Position history →

Exit(264,814)(100.0%)exited$78.5M

Changes compare each manager’s latest 13F with its prior quarter for the same CUSIP. “First observation” rows have no earlier stored filing to compare and are never counted as buys; “Split?” rows moved by a near-whole factor at an unchanged value and are treated as stock splits, not trades. Ending weight is the position after the change, not the size of the change.