Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership18,105 shares
Latest Disclosed Value $ 5,368,098
Stifel Financial Corp reports 18.32% increase in ownership of TER / Teradyne, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 18,105 shares of Teradyne, Inc. (MX:TER) valued at $5,368,098 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 15,302 shares of Teradyne, Inc.. This represents a change in shares of 18.32% 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)
2026-05-12 2026-03-31 13F TERADYNE COM 880770102 18,105 2,803 18.32 5,368 81.23 0.0049
2026-02-13 2025-12-31 13F TERADYNE COM 880770102 15,302 -452 -2.87 2,962 36.56 0.0027
2025-11-12 2025-09-30 13F TERADYNE COM 880770102 15,754 -1,391 -8.11 2,169 40.66 0.0020
2025-08-14 2025-06-30 13F TERADYNE COM 880770102 17,145 -116,152 -87.14 1,542 -86.00 0.0015
2025-05-14 2025-03-31 13F TERADYNE COM 880770102 133,297 -5,019 -3.63 11,011 -36.78 0.0117
2025-02-13 2024-12-31 13F TERADYNE COM 880770102 138,316 -41,325 -23.00 17,418 -27.61 0.0181
2024-11-14 2024-09-30 13F TERADYNE COM 880770102 179,641 -2,125 -1.17 24,061 -10.74 0.0252
2024-08-13 2024-06-30 13F TERADYNE COM 880770102 181,766 -28,270 -13.46 26,955 13.74 0.0303
2024-05-14 2024-03-31 13F TERADYNE COM 880770102 210,036 7,582 3.75 23,699 7.86 0.0270
2024-02-12 2023-12-31 13F TERADYNE COM 880770102 202,454 1,632 0.81 21,971 8.90 0.0276
2023-11-13 2023-09-30 13F TERADYNE COM 880770102 200,822 19,787 10.93 20,175 0.10 0.0284
2023-08-14 2023-06-30 13F TERADYNE COM 880770102 181,035 362 0.20 20,155 3.76 0.0276
2023-05-12 2023-03-31 13F TERADYNE COM 880770102 180,673 -1,379 -0.76 19,425 22.15 0.0278
2023-02-13 2022-12-31 13F TERADYNE COM 880770102 182,052 -8,615 -4.52 15,903 10.98 0.0239
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 190,667 5,755 3.11 14,329 -13.47 0.0235
2022-08-15 2022-06-30 13F TERADYNE COM 880770102 184,912 -270 -0.15 16,559 -24.37 0.0259
2022-05-13 2022-03-31 13F TERADYNE COM 880770102 185,182 -3,129 -1.66 21,895 -28.90 0.0299
2022-02-14 2021-12-31 13F TERADYNE COM 880770102 188,311 11,579 6.55 30,795 59.62 0.0407
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 176,732 11,768 7.13 19,293 -12.70 0.0283
2021-08-13 2021-06-30 13F TERADYNE COM 880770102 164,964 9,421 6.06 22,099 16.77 0.0331
2021-05-14 2021-03-31 13F TERADYNE COM 880770102 155,543 -31,821 -16.98 18,926 -15.75 0.0312
2021-02-12 2020-12-31 13F TERADYNE COM 880770102 187,364 21,448 12.93 22,463 70.38 0.0401
2020-11-16 2020-09-30 13F TERADYNE COM 880770102 165,916 9,605 6.14 13,184 -0.20 0.0271
2020-08-14 2020-06-30 13F TERADYNE COM 880770102 156,311 26,364 20.29 13,210 87.62 0.0304
2020-05-14 2020-03-31 13F TERADYNE COM 880770102 129,947 -68,323 -34.46 7,041 -47.87 0.0194
2020-02-13 2019-12-31 13F TERADYNE COM 880770102 198,270 45,284 29.60 13,506 52.39 0.0281
2019-11-19 2019-09-30 13F/A-1 TERADYNE COM 880770102 152,986 -52,647 -25.60 8,863 -9.90 0.0226
2019-11-13 2019-09-30 13F TERADYNE COM 880770102 153,440 -52,193 8,890 4,983.2906
2019-08-14 2019-06-30 13F TERADYNE COM 880770102 205,633 73,040 55.09 9,837 86.06 0.0254
2019-05-14 2019-03-31 13F TERADYNE COM 880770102 132,593 -43,432 -24.67 5,287 -4.29 0.0149
2019-02-13 2018-12-31 13F TERADYNE COM 880770102 176,025 20,459 13.15 5,524 -3.71 0.0179
2018-11-13 2018-09-30 13F TERADYNE COM 880770102 155,566 7,513 5.07 5,737 1.81 0.0164
2018-08-14 2018-06-30 13F TERADYNE COM 880770102 148,053 19,239 14.94 5,635 -4.33 0.0173
2018-05-11 2018-03-31 13F TERADYNE COM 880770102 128,814 12,538 10.78 5,890 21.37 0.0186
2018-02-14 2017-12-31 13F TERADYNE COM 880770102 116,276 -8,821 -7.05 4,853 4.16 0.0154
2017-11-13 2017-09-30 13F TERADYNE COM 880770102 125,097 61,881 97.89 4,659 145.21 0.0162
2017-08-14 2017-06-30 13F TERADYNE COM 880770102 63,216 1,091 1.76 1,900 -1.81 0.0071
2017-05-10 2017-03-31 13F TERADYNE COM 880770102 62,125 -337 -0.54 1,935 22.01 0.0075
2017-02-16 2016-12-31 13F TERADYNE COM 880770102 62,462 -1,845 -2.87 1,586 14.35 0.0067
2016-11-15 2016-09-30 13F TERADYNE COM 880770102 64,307 3,592 5.92 1,387 15.97 0.0062
2016-08-17 2016-06-30 13F TERADYNE COM 880770102 60,715 -26,683 -30.53 1,196 -36.59 0.0055
2016-05-16 2016-03-31 13F TERADYNE COM 880770102 87,398 -5,166 -5.58 1,886 -1.41 0.0101
2016-03-21 2015-12-31 13F/A-2 TERADYNE COM 880770102 92,564 19,739 27.10 1,913 45.81 0.0100
2016-02-26 2015-12-31 13F/A-1 TERADYNE COM 880770102 235,727 143,163 1,845 0.0096
2016-02-16 2015-12-31 13F TERADYNE COM 880770102 235,727 1,845
2015-11-16 2015-09-30 13F TERADYNE COM 880770102 72,825 -537,440 -88.07 1,312 -88.85 0.0074
2015-08-17 2015-06-30 13F/A-1 TERADYNE COM 880770102 610,265 -69,949 -10.28 11,772 -8.18 0.0609
2015-08-17 2015-06-30 13F TERADYNE COM 880770102 610,146 11,770
2015-05-14 2015-03-31 13F TERADYNE COM 880770102 680,214 -56,571 -7.68 12,821 -12.06 0.0702
2015-02-13 2014-12-31 13F TERADYNE COM 880770102 736,785 -57,910 -7.29 14,580 -5.37 0.0810
2014-11-13 2014-09-30 13F TERADYNE COM 880770102 794,695 -65,373 -7.60 15,408 -8.60 0.1352
2014-08-14 2014-06-30 13F TERADYNE COM 880770102 860,068 -390 -0.05 16,857 -1.50 0.1514
2014-05-15 2014-03-31 13F TERADYNE COM 880770102 860,458 860,458 17,114 0.1638
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.