Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionTower Research Capital LLC (TRC)
Latest Disclosed Ownership26,446 shares
Latest Disclosed Value $ 7,840,181
Tower Research Capital LLC (TRC) reports 22.64% decrease in ownership of TER / Teradyne, Inc.

On May 15, 2026 - Tower Research Capital LLC (TRC) filed a 13F-HR form disclosing ownership of 26,446 shares of Teradyne, Inc. (MX:TER) valued at $7,840,181 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,184 shares of Teradyne, Inc.. This represents a change in shares of -22.64% 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)
2026-05-15 2026-03-31 13F TERADYNE COM 880770102 26,446 -7,738 -22.64 7,840 18.50 0.1344
2026-02-17 2025-12-31 13F TERADYNE COM 880770102 34,184 20,325 146.66 6,617 246.93 0.1601
2025-11-14 2025-09-30 13F TERADYNE COM 880770102 13,859 10,059 264.71 1,908 459.24 0.0526
2025-08-15 2025-06-30 13F TERADYNE COM 880770102 3,800 -12,702 -76.97 342 -74.57 0.0092
2025-05-15 2025-03-31 13F TERADYNE COM 880770102 16,502 -8,177 -33.13 1,342 -56.84 0.0400
2025-02-13 2024-12-31 13F TERADYNE COM 880770102 24,679 17,928 265.56 3,108 243.69 0.0617
2024-11-14 2024-09-30 13F TERADYNE COM 880770102 6,751 -4,898 -42.05 904 -47.65 0.0239
2024-08-13 2024-06-30 13F TERADYNE COM 880770102 11,649 8,017 220.73 1,727 322.25 0.0292
2024-05-15 2024-03-31 13F TERADYNE COM 880770102 3,632 -24,011 -86.86 410 -86.36 0.0099
2024-02-13 2023-12-31 13F TERADYNE COM 880770102 27,643 19,823 253.49 3,000 282.04 0.0371
2023-11-14 2023-09-30 13F TERADYNE COM 880770102 7,820 4,659 147.39 786 123.65 0.0246
2023-08-14 2023-06-30 13F TERADYNE COM 880770102 3,161 -2,554 -44.69 352 0.0117
2023-05-09 2023-03-31 13F TERADYNE COM 880770102 5,715 -14,948 -72.34 1 -100.00 0.0195
2023-02-10 2022-12-31 13F TERADYNE COM 880770102 20,663 -9,516 -31.53 2 -99.96 0.0748
2022-11-10 2022-09-30 13F TERADYNE COM 880770102 30,179 -30,160 -49.98 2,268 -58.02 0.0368
2022-08-15 2022-06-30 13F TERADYNE COM 880770102 60,339 -11,435 -15.93 5,403 -36.33 0.1211
2022-05-12 2022-03-31 13F TERADYNE COM 880770102 71,774 54,425 313.71 8,486 199.12 0.0811
2022-02-14 2021-12-31 13F TERADYNE COM 880770102 17,349 10,188 142.27 2,837 262.79 0.0491
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 7,161 -18,943 -72.57 782 -77.63 0.0200
2021-08-16 2021-06-30 13F TERADYNE COM 880770102 26,104 -634 -2.37 3,496 7.47 0.0910
2021-05-17 2021-03-31 13F TERADYNE COM 880770102 26,738 23,724 787.13 3,253 801.11 0.0548
2021-02-16 2020-12-31 13F TERADYNE COM 880770102 3,014 -874 -22.48 361 16.83 0.0110
2020-11-16 2020-09-30 13F TERADYNE COM 880770102 3,888 -43,238 -91.75 309 -92.24 0.0034
2020-08-13 2020-06-30 13F TERADYNE COM 880770102 47,126 24,733 110.45 3,983 228.09 0.1635
2020-05-15 2020-03-31 13F TERADYNE COM 880770102 22,393 21,192 1,764.53 1,214 1,380.49 0.0738
2020-02-07 2019-12-31 13F TERADYNE COM 880770102 1,201 -1,146 -48.83 82 -39.71 0.0068
2019-11-05 2019-09-30 13F TERADYNE COM 880770102 2,347 -459 -16.36 136 0.74 0.0093
2019-08-13 2019-06-30 13F TERADYNE COM 880770102 2,806 -17,078 -85.89 135 -82.95 0.0091
2019-05-14 2019-03-31 13F TERADYNE COM 880770102 19,884 16,439 477.18 792 633.33 0.0481
2019-02-14 2018-12-31 13F TERADYNE COM 880770102 3,445 -15,914 -82.20 108 -84.92 0.0078
2018-11-13 2018-09-30 13F TERADYNE COM 880770102 19,359 16,024 480.48 716 463.78 0.0525
2018-08-14 2018-06-30 13F TERADYNE COM 880770102 3,335 -30,515 -90.15 127 -91.80 0.0071
2018-05-15 2018-03-31 13F TERADYNE COM 880770102 33,850 32,903 3,474.45 1,548 3,770.00 0.1326
2018-02-09 2017-12-31 13F TERADYNE COM 880770102 947 -6,611 -87.47 40 -85.82 0.0052
2017-11-14 2017-09-30 13F TERADYNE COM 880770102 7,558 7,558 282 0.0233
2017-08-14 2017-06-30 13F TERADYNE COM 880770102 0 -217 -100.00 0 -100.00
2017-05-19 2017-03-31 13F TERADYNE COM 880770102 217 -3,812 -94.61 7 -93.14 0.0007
2017-02-03 2016-12-31 13F TERADYNE COM 880770102 4,029 -602 -13.00 102 2.00 0.0111
2016-11-08 2016-09-30 13F TERADYNE COM 880770102 4,631 -652 -12.34 100 -3.85 0.0099
2016-08-10 2016-06-30 13F TERADYNE COM 880770102 5,283 5,283 0.00 104 0.0099
2016-05-16 2016-03-31 13F TERADYNE COM 880770102 0 -1,149 -100.00 0 -100.00
2016-02-10 2015-12-31 13F TERADYNE COM 880770102 1,149 952 483.25 24 500.00 0.0039
2015-11-13 2015-09-30 13F TERADYNE COM 880770102 197 55 38.73 4 33.33 0.0004
2015-07-30 2015-06-30 13F TERADYNE COM 880770102 142 -80 -36.04 3 -25.00 0.0003
2015-05-12 2015-03-31 13F TERADYNE COM 880770102 222 222 0.00 4 0.0005
2015-02-05 2014-12-31 13F TERADYNE COM 880770102 0 -6,041 -100.00 0 -100.00
2014-10-31 2014-09-30 13F TERADYNE COM 880770102 6,041 816 15.62 117 14.71 0.0131
2014-08-14 2014-06-30 13F TERADYNE COM 880770102 5,225 2,875 122.34 102 117.02 0.0131
2014-05-02 2014-03-31 13F TERADYNE COM 880770102 2,350 -3,395 -59.09 47 -53.92 0.0060
2014-01-31 2013-12-31 13F TERADYNE COM 880770102 5,745 3,228 128.25 102 148.78 0.0170
2013-11-06 2013-09-30 13F TERADYNE COM 880770102 2,517 917 57.31 41 46.43 0.0044
2013-08-05 2013-06-30 13F TERADYNE COM 880770102 1,600 1,600 28 0.0023
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.