Teradyne, Inc.
US ˙ NasdaqGS ˙ US8807701029

SecurityTER / Teradyne, Inc.
InstitutionVestmark Advisory Solutions, Inc.
Latest Disclosed Ownership27,122 shares
Latest Disclosed Value $ 8,040,588
Vestmark Advisory Solutions, Inc. reports 34.81% decrease in ownership of TER / Teradyne, Inc.

On May 15, 2026 - Vestmark Advisory Solutions, Inc. filed a 13F-HR form disclosing ownership of 27,122 shares of Teradyne, Inc. (US:TER) valued at $8,040,588 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 41,604 shares of Teradyne, Inc.. This represents a change in shares of -34.81% during the quarter. The current value of the position is $11,111,070 USD.

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)
2026-05-15 2026-03-31 13F TERADYNE COM 880770102 27,122 -14,482 -34.81 8,041 -0.15 0.0553
2026-02-06 2025-12-31 13F TERADYNE COM 880770102 41,604 -2,871 -6.46 8,053 31.55 0.1087
2025-11-10 2025-09-30 13F TERADYNE COM 880770102 44,475 -37,496 -45.74 6,122 -16.95 0.1167
2025-08-06 2025-06-30 13F TERADYNE COM 880770102 81,971 -20,962 -20.36 7,371 -13.31 0.1064
2025-05-13 2025-03-31 13F TERADYNE COM 880770102 102,933 27,163 35.85 8,502 -9.91 0.2189
2025-02-06 2024-12-31 13F TERADYNE COM 880770102 75,770 1,857 2.51 9,437 -4.67 0.3250
2024-11-14 2024-09-30 13F TERADYNE COM 880770102 73,913 -496 -0.67 9,899 -10.29 0.3685
2024-08-12 2024-06-30 13F TERADYNE COM 880770102 74,409 -9,758 -11.59 11,034 16.20 0.4607
2024-05-15 2024-03-31 13F TERADYNE COM 880770102 84,167 12,205 16.96 9,497 21.60 0.4090
2024-02-06 2023-12-31 13F TERADYNE COM 880770102 71,962 39,280 120.19 7,809 137.86 0.3967
2023-11-06 2023-09-30 13F TERADYNE COM 880770102 32,682 -32,814 -50.10 3,283 -54.97 0.2387
2023-08-07 2023-06-30 13F TERADYNE COM 880770102 65,496 1,123 1.74 7,292 5.36 0.2777
2023-05-09 2023-03-31 13F TERADYNE COM 880770102 64,373 1,421 2.26 6,921 25.86 0.2997
2023-01-20 2022-12-31 13F TERADYNE COM 880770102 62,952 -1,022 -1.60 5,499 14.35 0.2679
2022-11-03 2022-09-30 13F TERADYNE COM 880770102 63,974 2,750 4.49 4,808 -12.29 0.2680
2022-08-04 2022-06-30 13F TERADYNE COM 880770102 61,224 6,201 11.27 5,482 -15.73 0.3131
2022-04-27 2022-03-31 13F TERADYNE COM 880770102 55,023 1,716 3.22 6,505 -25.38 0.3682
2022-01-31 2021-12-31 13F TERADYNE COM 880770102 53,307 4,109 8.35 8,717 62.30 0.4919
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 49,198 5,271 12.00 5,371 -8.72 0.3638
2021-08-09 2021-06-30 13F TERADYNE COM 880770102 43,927 4,291 10.83 5,884 22.00 0.4187
2021-05-10 2021-03-31 13F TERADYNE COM 880770102 39,636 5,505 16.13 4,823 17.86 0.4278
2021-02-04 2020-12-31 13F TERADYNE COM 880770102 34,131 2,937 9.42 4,092 65.07 0.4592
2020-10-19 2020-09-30 13F TERADYNE COM 880770102 31,194 4,000 14.71 2,479 7.88 0.3330
2020-08-13 2020-06-30 13F TERADYNE COM 880770102 27,194 2,224 8.91 2,298 69.84 0.3556
2020-05-06 2020-03-31 13F TERADYNE COM 880770102 24,970 1,281 5.41 1,353 -16.22 0.2645
2020-02-14 2019-12-31 13F TERADYNE COM 880770102 23,689 -7,038 -22.90 1,615 -9.22 0.3314
2019-11-05 2019-09-30 13F TERADYNE COM 880770102 30,727 4,003 14.98 1,779 38.98 0.2884
2019-08-20 2019-06-30 13F TERADYNE COM 880770102 26,724 1,812 7.27 1,280 29.03 0.2190
2019-05-14 2019-03-31 13F TERADYNE COM 880770102 24,912 24,912 992 0.1769
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.