Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionE Fund Management Co., Ltd.
Latest Disclosed Ownership4,306 shares
Latest Disclosed Value $ 1,276,557
E Fund Management Co., Ltd. reports 50.82% increase in ownership of TER / Teradyne, Inc.

On April 13, 2026 - E Fund Management Co., Ltd. filed a 13F-HR form disclosing ownership of 4,306 shares of Teradyne, Inc. (MX:TER) valued at $1,276,557 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 15, 2025 disclosing 2,855 shares of Teradyne, Inc.. This represents a change in shares of 50.82% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-13 2026-03-31 13F TERADYNE COM 880770102 4,306 1,451 50.82 1,277 398.44 0.0379
2025-08-15 2025-06-30 13F Teradyne Common Stock 880770102 2,855 -650 -18.54 257 -11.42 0.0122
2025-05-13 2025-03-31 13F Teradyne Common Stock 880770102 3,505 -20,125 -85.17 290 -90.29 0.0138
2025-02-07 2024-12-31 13F Teradyne Common Stock 880770102 23,630 21,391 955.38 2,975 894.98 0.1494
2024-11-13 2024-09-30 13F Teradyne Common Stock 880770102 2,239 430 23.77 300 11.57 0.0154
2024-08-12 2024-06-30 13F Teradyne Common Stock 880770102 1,809 1,809 268 0.0148
2022-05-12 2022-03-31 13F Teradyne Common Stock 880770102 0 -1,592 -100.00 0 -100.00
2022-02-11 2021-12-31 13F Teradyne Common Stock 880770102 1,592 1,592 260 0.0092
2021-11-11 2021-09-30 13F TERADYNE Common Stock 880770102 0 -2,255 -100.00 0 -100.00
2021-05-13 2021-03-31 13F/A-1 TERADYNE Common Stock 880770102 2,255 2,255 274 0.0225
2021-05-12 2021-03-31 13F TERADYNE Common Stock 880770102 2,255 2,255 274 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.