Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership24,480 shares
Latest Disclosed Value $ 7,257,341
Guggenheim Capital Llc reports 10.00% decrease in ownership of TER / Teradyne, Inc.

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 24,480 shares of Teradyne, Inc. (MX:TER) valued at $7,257,341 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 27,201 shares of Teradyne, Inc.. This represents a change in shares of -10.00% 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 24,480 -2,721 -10.00 7,257 37.83 0.0280
2026-02-17 2025-12-31 13F TERADYNE COM 880770102 27,201 -844 -3.01 5,265 36.40 0.0188
2025-11-13 2025-09-30 13F TERADYNE COM 880770102 28,045 1,989 7.63 3,860 64.82 0.0280
2025-08-13 2025-06-30 13F TERADYNE COM 880770102 26,056 1,973 8.19 2,343 17.75 0.0186
2025-05-14 2025-03-31 13F TERADYNE COM 880770102 24,083 553 2.35 1,989 -32.85 0.0183
2025-02-13 2024-12-31 13F TERADYNE COM 880770102 23,530 -110,529 -82.45 2,963 -83.50 0.0240
2024-11-13 2024-09-30 13F TERADYNE COM 880770102 134,059 -5,809 -4.15 17,955 -13.44 0.1256
2024-08-14 2024-06-30 13F TERADYNE COM 880770102 139,868 -18,939 -11.93 20,741 15.76 0.1471
2024-05-14 2024-03-31 13F TERADYNE COM 880770102 158,807 2,196 1.40 17,918 5.43 0.1263
2024-02-14 2023-12-31 13F TERADYNE COM 880770102 156,611 -20,508 -11.58 16,995 -4.48 0.1284
2023-11-14 2023-09-30 13F TERADYNE COM 880770102 177,119 -6,577 -3.58 17,793 -12.99 0.1530
2023-08-11 2023-06-30 13F TERADYNE COM 880770102 183,696 13,077 7.66 20,451 11.49 0.1605
2023-05-11 2023-03-31 13F TERADYNE COM 880770102 170,619 4,640 2.80 18,343 26.52 0.1544
2023-02-14 2022-12-31 13F TERADYNE COM 880770102 165,979 -8,723 -4.99 14,498 10.42 0.1274
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 174,702 -5,149 -2.86 13,130 -18.48 0.1203
2022-08-15 2022-06-30 13F TERADYNE COM 880770102 179,851 79,023 78.37 16,106 35.11 0.1271
2022-05-16 2022-03-31 13F TERADYNE COM 880770102 100,828 34,146 51.21 11,921 9.33 0.0717
2022-02-14 2021-12-31 13F TERADYNE COM 880770102 66,682 8,094 13.82 10,904 70.48 0.0569
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 58,588 -37,850 -39.25 6,396 -50.49 0.0384
2021-08-13 2021-06-30 13F TERADYNE COM 880770102 96,438 13,154 15.79 12,919 27.49 0.0760
2021-05-13 2021-03-31 13F TERADYNE COM 880770102 83,284 -1,051 -1.25 10,133 0.22 0.0665
2021-02-16 2020-12-31 13F TERADYNE COM 880770102 84,335 -10,002 -10.60 10,111 34.89 0.0634
2020-11-13 2020-09-30 13F TERADYNE COM 880770102 94,337 23,534 33.24 7,496 25.29 0.0543
2020-08-14 2020-06-30 13F TERADYNE COM 880770102 70,803 -44,206 -38.44 5,983 -3.95 0.0463
2020-06-02 2020-03-31 13F TERADYNE COM 880770102 115,009 15,912 16.06 6,229 -7.83 0.0627
2020-02-20 2019-12-31 13F/A-1 TERADYNE COM 880770102 99,097 -35,588 -26.42 6,758 -13.36 0.0508
2020-02-14 2019-12-31 13F TERADYNE COM 880770102 99,097 -35,588 6,758 40,053.3151
2020-02-20 2019-09-30 13F/A-1 TERADYNE COM 880770102 134,685 97,272 260.00 7,800 335.03 0.0623
2019-11-14 2019-09-30 13F TERADYNE COM 880770102 134,685 97,272 7,800 57,160.6879
2019-08-14 2019-06-30 13F TERADYNE COM 880770102 37,413 -6,184 -14.18 1,793 3.28 0.0146
2019-05-15 2019-03-31 13F TERADYNE COM 880770102 43,597 15,353 54.36 1,736 95.72 0.0141
2019-02-14 2018-12-31 13F TERADYNE COM 880770102 28,244 -37,545 -57.07 887 -63.54 0.0075
2018-11-14 2018-09-30 13F TERADYNE COM 880770102 65,789 -62,906 -48.88 2,433 -50.33 0.0159
2018-08-14 2018-06-30 13F TERADYNE COM 880770102 128,695 -127,029 -49.67 4,898 -58.09 0.0327
2018-05-15 2018-03-31 13F TERADYNE COM 880770102 255,724 5,736 2.29 11,688 11.68 0.0285
2018-02-14 2017-12-31 13F TERADYNE COM 880770102 249,988 176,527 240.30 10,466 282.11 0.0248
2017-11-14 2017-09-30 13F TERADYNE COM 880770102 73,461 -33,584 -31.37 2,739 -14.78 0.0064
2017-08-14 2017-06-30 13F TERADYNE COM 880770102 107,045 -109,199 -50.50 3,214 -52.22 0.0085
2017-05-15 2017-03-31 13F TERADYNE COM 880770102 216,244 16,322 8.16 6,726 32.43 0.0182
2017-02-14 2016-12-31 13F TERADYNE COM 880770102 199,922 5,115 2.63 5,079 20.81 0.0145
2016-11-14 2016-09-30 13F TERADYNE COM 880770102 194,807 23,844 13.95 4,204 24.86 0.0131
2016-08-15 2016-06-30 13F TERADYNE COM 880770102 170,963 49,265 40.48 3,367 28.12 0.0106
2016-05-16 2016-03-31 13F TERADYNE COM 880770102 121,698 36,059 42.11 2,628 48.47 0.0083
2016-02-16 2015-12-31 13F TERADYNE COM 880770102 85,639 9,971 13.18 1,770 29.96 0.0052
2015-11-16 2015-09-30 13F TERADYNE COM 880770102 75,668 -138,280 -64.63 1,362 -67.00 0.0042
2015-08-14 2015-06-30 13F TERADYNE COM 880770102 213,948 -327,110 -60.46 4,127 -59.54 0.0102
2015-05-18 2015-03-31 13F/A-1 TERADYNE COM 880770102 541,058 -479,213 -46.97 10,200 -49.48 0.0241
2015-05-15 2015-03-31 13F TERADYNE COM 880770102 541,058 10,200
2015-02-17 2014-12-31 13F TERADYNE COM 880770102 1,020,271 -49,214 -4.60 20,191 -2.63 0.0507
2014-11-14 2014-09-30 13F TERADYNE COM 880770102 1,069,485 999,507 1,428.32 20,737 1,411.44 0.0500
2014-08-14 2014-06-30 13F TERADYNE COM 880770102 69,978 27,163 63.44 1,372 61.03 0.0035
2014-05-16 2014-03-31 13F TERADYNE COM 880770102 42,815 11,784 37.97 852 55.76 0.0024
2014-02-14 2013-12-31 13F TERADYNE COM 880770102 31,031 -1,318,491 -97.70 547 -97.55 0.0017
2013-11-14 2013-09-30 13F TERADYNE COM 880770102 1,349,522 310,010 29.82 22,295 22.07 0.0800
2013-08-22 2013-06-30 13F/A-1 TERADYNE COM 880770102 1,039,512 1,039,512 18,264 0.0768
2013-08-14 2013-06-30 13F TERADYNE COM 880770102 1,039,512 18,264 0.0770
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.