Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionTcw Group Inc
Latest Disclosed Ownership12,246 shares
Latest Disclosed Value $ 3,630,449
Tcw Group Inc reports 25.87% decrease in ownership of TER / Teradyne, Inc.

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 12,246 shares of Teradyne, Inc. (MX:TER) valued at $3,630,449 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 16,519 shares of Teradyne, Inc.. This represents a change in shares of -25.87% 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)
2026-05-14 2026-03-31 13F TERADYNE COM 880770102 12,246 -4,273 -25.87 3,630 13.54 0.0145
2026-02-17 2025-12-31 13F TERADYNE COM 880770102 16,519 1,641 11.03 3,197 56.18 0.0229
2025-11-14 2025-09-30 13F TERADYNE COM 880770102 14,878 -3,606 -19.51 2,048 23.16 0.0171
2025-08-14 2025-06-30 13F TERADYNE COM 880770102 18,484 4,326 30.56 1,662 42.17 0.0130
2025-05-07 2025-03-31 13F TERADYNE COM 880770102 14,158 3,455 32.28 1,169 -13.21 0.0105
2025-02-04 2024-12-31 13F TERADYNE COM 880770102 10,703 10,703 1,348 0.0113
2019-08-07 2019-06-30 13F TERADYNE COM 880770102 0 -13,900 -100.00 0 -100.00
2019-05-13 2019-03-31 13F TERADYNE COM 880770102 13,900 13,900 553 0.0053
2018-02-09 2017-12-31 13F TERADYNE COM 880770102 0 -324,911 -100.00 0 -100.00
2017-11-06 2017-09-30 13F TERADYNE COM 880770102 324,911 -41,420 -11.31 12,116 10.14 0.0963
2017-08-11 2017-06-30 13F TERADYNE COM 880770102 366,331 -42,869 -10.48 11,001 -13.55 0.0914
2017-05-11 2017-03-31 13F TERADYNE COM 880770102 409,200 203,068 98.51 12,726 143.05 0.1062
2017-02-10 2016-12-31 13F TERADYNE COM 880770102 206,132 126,567 159.07 5,236 204.95 0.0394
2016-11-14 2016-09-30 13F TERADYNE COM 880770102 79,565 -49,249 -38.23 1,717 -32.29 0.0130
2016-08-12 2016-06-30 13F/A-1 TERADYNE COM 880770102 128,814 -109 -0.08 2,536 -8.91 0.0192
2016-08-11 2016-06-30 13F TERADYNE COM 880770102 128,814 2,536
2016-05-16 2016-03-31 13F TERADYNE COM 880770102 128,923 -13,648 -9.57 2,784 -5.50 0.0204
2016-02-16 2015-12-31 13F TERADYNE COM 880770102 142,571 6,285 4.61 2,946 20.05 0.0212
2015-11-13 2015-09-30 13F TERADYNE COM 880770102 136,286 12,375 9.99 2,454 2.68 0.0176
2015-08-12 2015-06-30 13F TERADYNE COM 880770102 123,911 -17,345 -12.28 2,390 -10.25 0.0154
2015-05-13 2015-03-31 13F TERADYNE COM 880770102 141,256 -50,007 -26.15 2,663 -29.64 0.0128
2015-02-13 2014-12-31 13F TERADYNE COM 880770102 191,263 10,601 5.87 3,785 8.05 0.0158
2014-11-14 2014-09-30 13F TERADYNE COM 880770102 180,662 -546 -0.30 3,503 -1.35 0.0141
2014-08-14 2014-06-30 13F TERADYNE COM 880770102 181,208 4,270 2.41 3,551 0.91 0.0146
2014-05-13 2014-03-31 13F TERADYNE COM 880770102 176,938 -850 -0.48 3,519 12.32 0.0146
2014-02-18 2013-12-31 13F/A-1 TERADYNE COM 880770102 177,788 -120,624 -40.42 3,133 -36.45 0.0132
2014-02-14 2013-12-31 13F TERADYNE COM 880770102 3,133 177,788
2013-11-14 2013-09-30 13F TERADYNE COM 880770102 298,412 -10,710 -3.46 4,930 -9.24 0.0228
2013-08-14 2013-06-30 13F/A-1 TERADYNE COM 880770102 309,122 309,122 5,432 0.0268
2013-08-14 2013-06-30 13F TERADYNE COM 880770102 309,122 5,432
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.