Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionEastern Bank
Latest Disclosed Ownership66 shares
Latest Disclosed Value $ 19,566
Eastern Bank ownership in TER / Teradyne, Inc.

On April 7, 2026 - Eastern Bank filed a 13F-HR form disclosing ownership of 66 shares of Teradyne, Inc. (MX:TER) valued at $19,566 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 66 shares of Teradyne, Inc.. This represents a change in shares of 0.00% 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)
2026-04-07 2026-03-31 13F TERADYNE COM 880770102 66 0 0.00 20 58.33 0.0003
2026-01-14 2025-12-31 13F TERADYNE COM 880770102 66 14 26.92 13 71.43 0.0002
2025-10-27 2025-09-30 13F TERADYNE COM 880770102 52 52 7 0.0001
2025-07-24 2025-06-30 13F TERADYNE COM 880770102 0 -150 -100.00 0 -100.00
2025-05-08 2025-03-31 13F TERADYNE COM 880770102 150 -350 -70.00 12 -80.65 0.0002
2025-01-13 2024-12-31 13F Teradyne COM 880770102 500 0 0.00 63 -6.06 0.0012
2024-10-21 2024-09-30 13F Teradyne COM 880770102 500 500 67 0.0012
2024-01-25 2023-12-31 13F TERADYNE COMMON STOCKS 880770102 0 -5,000 -100.00 0 -100.00
2023-10-17 2023-09-30 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 502 -9.71 0.0250
2023-07-19 2023-06-30 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 557 3.54 0.0265
2023-04-19 2023-03-31 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 538 23.17 0.0270
2023-01-24 2022-12-31 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 437 15.96 0.0233
2022-10-19 2022-09-30 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 376 -16.07 0.0215
2022-07-20 2022-06-30 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 448 -24.20 0.0238
2022-04-21 2022-03-31 13F TERADYNE COMMON STOCKS 880770102 5,000 0 0.00 591 -27.75 0.0274
2022-01-26 2021-12-31 13F TERADYNE COMMON STOCKS 880770102 5,000 -200 -3.85 818 44.01 0.0357
2021-10-19 2021-09-30 13F TERADYNE COMMON STOCKS 880770102 5,200 0 0.00 568 -18.51 0.0274
2021-07-20 2021-06-30 13F TERADYNE COMMON STOCKS 880770102 5,200 0 0.00 697 10.11 0.0342
2021-04-27 2021-03-31 13F TERADYNE COMMON STOCKS 880770102 5,200 0 0.00 633 1.61 0.0342
2021-01-20 2020-12-31 13F TERADYNE COMMON STOCKS 880770102 5,200 0 0.00 623 50.85 0.0349
2020-10-30 2020-09-30 13F TERADYNE COMMON STOCKS 880770102 5,200 0 0.00 413 -5.92 0.0253
2020-09-01 2020-06-30 13F/A-1 TERADYNE COMMON STOCKS 880770102 5,200 -1,105 -17.53 439 28.36 0.0286
2020-07-21 2020-06-30 13F TERADYNE COMMON STOCKS 880770102 5,200 -1,105 439 28,554.9256
2020-04-27 2020-03-31 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 342 -20.47 0.0255
2020-02-04 2019-12-31 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 430 17.81 0.0250
2019-11-04 2019-09-30 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 365 20.86 0.0228
2019-07-24 2019-06-30 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 302 20.32 0.0192
2019-04-18 2019-03-31 13F TERADYNE COMMON STOCKS 880770102 6,305 6,305 251 0.0168
2019-01-18 2018-12-31 13F TERADYNE COMMON STOCKS 880770102 0 -6,305 -100.00 0 -100.00
2018-10-16 2018-09-30 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 233 -2.92 0.0152
2018-07-18 2018-06-30 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 240 -16.67 0.0164
2018-04-09 2018-03-31 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 288 9.09 0.0201
2018-01-22 2017-12-31 13F TERADYNE COMMON STOCKS 880770102 6,305 0 0.00 264 12.34 0.0177
2017-10-24 2017-09-30 13F TERADYNE COMMON STOCKS 880770102 6,305 -3,765 -37.39 235 32.77 0.0166
2014-01-21 2013-12-31 13F TERADYNE COMMON STOCKS 880770102 10,070 0 0.00 177 6.63 0.0151
2013-10-18 2013-09-30 13F TERADYNE COMMON STOCKS 880770102 10,070 0 0.00 166 -6.21 0.0152
2013-08-09 2013-06-30 13F TERADYNE COMMON STOCKS 880770102 10,070 10,070 177 0.0165
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.