Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership5,030 shares
Latest Disclosed Value $ 1,491,270
Assetmark, Inc reports 7.82% increase in ownership of TER / Teradyne, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 5,030 shares of Teradyne, Inc. (MX:TER) valued at $1,491,270 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 4,665 shares of Teradyne, Inc.. This represents a change in shares of 7.82% 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)
2026-05-06 2026-03-31 13F TERADYNE COM 880770102 5,030 365 7.82 1,491 65.12 0.0030
2026-01-23 2025-12-31 13F TERADYNE COM 880770102 4,665 -2,571 -35.53 903 -9.25 0.0018
2025-11-06 2025-09-30 13F TERADYNE COM 880770102 7,236 611 9.22 996 67.23 0.0021
2025-08-04 2025-06-30 13F TERADYNE COM 880770102 6,625 4,004 152.77 596 175.46 0.0014
2025-05-06 2025-03-31 13F TERADYNE COM 880770102 2,621 704 36.72 216 -10.37 0.0006
2025-02-06 2024-12-31 13F TERADYNE COM 880770102 1,917 993 107.47 241 95.93 0.0007
2024-11-01 2024-09-30 13F TERADYNE COM 880770102 924 -23,616 -96.23 124 -96.62 0.0004
2024-08-13 2024-06-30 13F TERADYNE COM 880770102 24,540 -361 -1.45 3,639 29.55 0.0113
2024-05-07 2024-03-31 13F TERADYNE COM 880770102 24,901 1,082 4.54 2,810 8.71 0.0091
2024-02-09 2023-12-31 13F TERADYNE COM 880770102 23,819 1,057 4.64 2,585 13.04 0.0093
2023-10-27 2023-09-30 13F TERADYNE COM 880770102 22,762 1,947 9.35 2,287 -1.34 0.0091
2023-08-11 2023-06-30 13F TERADYNE INC COM COM 880770102 20,815 20,814 2,081,400.00 2,317 0.0091
2023-05-05 2023-03-31 13F TERADYNE INC COM COM 880770102 1 -27 -96.43 0 -100.00 0.0000
2023-02-10 2022-12-31 13F TERADYNE COM 880770102 28 0 0.00 2 0.00 0.0000
2022-11-01 2022-09-30 13F TERADYNE COM 880770102 28 -4,245 -99.34 2 -99.48 0.0000
2022-08-03 2022-06-30 13F TERADYNE INC COM COM 880770102 4,273 651 17.97 383 -10.51 0.0017
2022-05-13 2022-03-31 13F TERADYNE INC COM COM 880770102 3,622 3,583 9,187.18 428 7,033.33 0.0018
2022-02-14 2021-12-31 13F TERADYNE INC COM COM 880770102 39 -386 -90.82 6 -86.96 0.0000
2021-11-12 2021-09-30 13F TERADYNE INC COM COM 880770102 425 -214,940 -99.80 46 -99.84 0.0002
2021-08-16 2021-06-30 13F TERADYNE INC COM COM 880770102 215,365 30,021 16.20 28,850 27.92 0.1338
2021-05-14 2021-03-31 13F TERADYNE COM 880770102 185,344 181,417 4,619.74 22,553 4,688.32 0.1163
2021-02-10 2020-12-31 13F TERADYNE INC COM COM 880770102 3,927 -1,081 -21.59 471 18.34 0.0026
2020-11-13 2020-09-30 13F TERADYNE INC COM COM 880770102 5,008 1,345 36.72 398 28.39 0.0026
2020-08-11 2020-06-30 13F TERADYNE INC COM COM 880770102 3,663 2,745 299.02 310 520.00 0.0022
2020-05-12 2020-03-31 13F TERADYNE INC COM COM 880770102 918 918 50 0.0004
2018-05-16 2018-03-31 13F TERADYNE INC COM COM 880770102 0 -40 -100.00 0 -100.00
2018-02-13 2017-12-31 13F TERADYNE INC COM COM 880770102 40 24 150.00 2 100.00 0.0000
2017-11-08 2017-09-30 13F TERADYNE INC COM COM 880770102 16 16 1 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.