Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionGreat Lakes Advisors, Llc
Latest Disclosed Ownership9,356 shares
Latest Disclosed Value $ 2,773,680
Great Lakes Advisors, Llc reports 2.71% decrease in ownership of TER / Teradyne, Inc.

On May 11, 2026 - Great Lakes Advisors, Llc filed a 13F-HR form disclosing ownership of 9,356 shares of Teradyne, Inc. (MX:TER) valued at $2,773,680 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,617 shares of Teradyne, Inc.. This represents a change in shares of -2.71% 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)
2026-05-11 2026-03-31 13F Teradyne COM 880770102 9,356 -261 -2.71 2,774 49.01 0.0067
2026-02-12 2025-12-31 13F Teradyne COM 880770102 9,617 5 0.05 1,861 40.77 0.0152
2025-11-03 2025-09-30 13F Teradyne COM 880770102 9,612 -943 -8.93 1,323 39.30 0.0110
2025-08-11 2025-06-30 13F Teradyne COM 880770102 10,555 -266 -2.46 949 6.27 0.0080
2025-05-16 2025-03-31 13F Teradyne COM 880770102 10,821 -385 -3.44 894 -36.71 0.0080
2025-02-10 2024-12-31 13F Teradyne COM 880770102 11,206 -108 -0.95 1,411 -6.86 0.0121
2024-11-04 2024-09-30 13F Teradyne COM 880770102 11,314 -5 -0.04 1,515 -9.71 0.0127
2024-08-06 2024-06-30 13F Teradyne COM 880770102 11,319 -134 -1.17 1,678 29.88 0.0149
2024-05-08 2024-03-31 13F Teradyne COM 880770102 11,453 -233 -1.99 1,292 1.89 0.0110
2024-02-08 2023-12-31 13F Teradyne COM 880770102 11,686 -130 -1.10 1,268 6.82 0.0121
2023-11-07 2023-09-30 13F Teradyne COM 880770102 11,816 -272 -2.25 1,187 -11.75 0.0108
2023-08-10 2023-06-30 13F Teradyne COM 880770102 12,088 -287 -2.32 1,346 1.13 0.0134
2023-05-10 2023-03-31 13F Teradyne COM 880770102 12,375 -35 -0.28 1,330 22.69 0.0121
2023-02-09 2022-12-31 13F Teradyne COM 880770102 12,410 -166 -1.32 1,084 14.71 0.0621
2022-11-09 2022-09-30 13F Teradyne COM 880770102 12,576 -1,580 -11.16 945 -25.47 0.0206
2022-08-09 2022-06-30 13F Teradyne COM 880770102 14,156 -570 -3.87 1,268 -27.17 0.0251
2022-05-06 2022-03-31 13F Teradyne COM 880770102 14,726 -665 -4.32 1,741 -30.83 0.0223
2022-02-09 2021-12-31 13F Teradyne COM 880770102 15,391 12 0.08 2,517 49.91 0.0383
2021-11-09 2021-09-30 13F Teradyne COM 880770102 15,379 -307 -1.96 1,679 -20.09 0.0262
2021-08-11 2021-06-30 13F Teradyne COM 880770102 15,686 -173 -1.09 2,101 8.86 0.0317
2021-05-03 2021-03-31 13F Teradyne COM 880770102 15,859 -109 -0.68 1,930 0.84 0.0312
2021-02-09 2020-12-31 13F Teradyne COM 880770102 15,968 -250 -1.54 1,914 48.49 0.0346
2020-11-04 2020-09-30 13F Teradyne COM 880770102 16,218 -187 -1.14 1,289 -7.00 0.0273
2020-08-07 2020-06-30 13F Teradyne COM 880770102 16,405 -386 -2.30 1,386 52.31 0.0336
2020-05-08 2020-03-31 13F Teradyne COM 880770102 16,791 -297 -1.74 910 -21.89 0.0266
2020-02-07 2019-12-31 13F Teradyne COM 880770102 17,088 -57,850 -77.20 1,165 -73.15 0.0250
2019-11-06 2019-09-30 13F Teradyne COM 880770102 74,938 -258,475 -77.52 4,339 -72.84 0.0953
2019-08-05 2019-06-30 13F Teradyne COM 880770102 333,413 4,579 1.39 15,974 21.93 0.3481
2019-05-07 2019-03-31 13F Teradyne COM 880770102 328,834 39,139 13.51 13,101 44.11 0.2915
2019-02-13 2018-12-31 13F Teradyne COM 880770102 289,695 -34,528 -10.65 9,091 -24.18 0.2154
2018-11-30 2018-09-30 13F/A-2 Teradyne COM 880770102 324,223 -21,136 -6.12 11,990 -8.81 0.2646
2018-11-14 2018-09-30 13F TERADYNE COM 880770102 345,359 0 13,148
2018-08-13 2018-06-30 13F TERADYNE COM 880770102 345,359 -118,709 -25.58 13,148 -38.02 0.3082
2018-05-07 2018-03-31 13F TERADYNE CS 880770102 464,068 123,550 36.28 21,213 48.79 0.5053
2018-02-07 2017-12-31 13F TERADYNE CS 880770102 340,518 -8,473 -2.43 14,257 9.55 0.3134
2017-11-13 2017-09-30 13F TERADYNE CS 880770102 348,991 29,217 9.14 13,014 35.52 0.3061
2017-08-07 2017-06-30 13F TERADYNE CS 880770102 319,774 29,180 10.04 9,603 6.26 0.2356
2017-05-09 2017-03-31 13F TERADYNE CS 880770102 290,594 44,356 18.01 9,037 44.50 0.2325
2017-02-10 2016-12-31 13F TERADYNE CS 880770102 246,238 1,503 0.61 6,254 18.42 0.1643
2016-11-07 2016-09-30 13F TERADYNE CS 880770102 244,735 -48,966 -16.67 5,281 -8.68 0.1432
2016-08-12 2016-06-30 13F TERADYNE CS 880770102 293,701 883 0.30 5,783 -8.53 0.1574
2016-05-11 2016-03-31 13F TERADYNE CS 880770102 292,818 142,728 95.09 6,322 103.80 0.1729
2016-02-12 2015-12-31 13F TERADYNE CS 880770102 150,090 96,483 179.98 3,102 221.45 0.0930
2015-10-30 2015-09-30 13F TERADYNE CS 880770102 53,607 53,607 965 0.0299
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.