Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership273,353 shares
Latest Disclosed Value $ 81,038,232
Principal Financial Group Inc reports 47.86% increase in ownership of TER / Teradyne, Inc.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 273,353 shares of Teradyne, Inc. (MX:TER) valued at $81,038,232 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 184,879 shares of Teradyne, Inc.. This represents a change in shares of 47.86% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-04 2026-03-31 13F TERADYNE COM 880770102 273,353 88,474 47.86 81,038 126.46 0.0433
2026-02-02 2025-12-31 13F TERADYNE COM 880770102 184,879 1,943 1.06 35,785 42.12 0.0183
2025-11-04 2025-09-30 13F TERADYNE COM 880770102 182,936 -12,318 -6.31 25,179 43.41 0.0127
2025-08-08 2025-06-30 13F TERADYNE COM 880770102 195,254 -30,774 -13.62 17,557 -5.96 0.0093
2025-04-28 2025-03-31 13F TERADYNE COM 880770102 226,028 -8,395 -3.58 18,670 -36.75 0.0105
2025-01-31 2024-12-31 13F TERADYNE COM 880770102 234,423 -168,245 -41.78 29,519 -45.27 0.0161
2024-10-31 2024-09-30 13F TERADYNE COM 880770102 402,668 -124,749 -23.65 53,929 -31.05 0.0297
2024-07-29 2024-06-30 13F TERADYNE COM 880770102 527,417 270,396 105.20 78,211 169.70 0.0464
2024-04-29 2024-03-31 13F TERADYNE COM 880770102 257,021 3,698 1.46 29,000 5.49 0.0170
2024-02-07 2023-12-31 13F TERADYNE COM 880770102 253,323 -7,595 -2.91 27,491 4.88 0.0175
2023-11-02 2023-09-30 13F TERADYNE COM 880770102 260,918 -379 -0.15 26,212 -9.90 0.0188
2023-08-07 2023-06-30 13F TERADYNE COM 880770102 261,297 -17,502 -6.28 29,090 -2.95 0.0199
2023-05-09 2023-03-31 13F TERADYNE COM 880770102 278,799 -12,997 -4.45 29,974 17.60 0.0214
2023-02-09 2022-12-31 13F TERADYNE COM 880770102 291,796 -13,328 -4.37 25,488 11.16 0.0192
2022-11-09 2022-09-30 13F TERADYNE COM 880770102 305,124 -92,428 -23.25 22,930 -35.59 0.0182
2022-08-10 2022-06-30 13F TERADYNE COM 880770102 397,552 365,328 1,133.71 35,601 834.41 0.0263
2022-05-09 2022-03-31 13F TERADYNE COM 880770102 32,224 -455,530 -93.39 3,810 -95.22 0.0015
2022-05-09 2022-03-31 13F TERADYNE COM 880770102 390,686 46,191
2022-02-09 2021-12-31 13F TERADYNE COM 880770102 487,754 -64,885 -11.74 79,762 32.21 0.0476
2021-11-09 2021-09-30 13F TERADYNE COM 880770102 552,639 -6,073 -1.09 60,332 -19.39 0.0393
2021-08-10 2021-06-30 13F TERADYNE COM 880770102 558,712 -271,689 -32.72 74,845 -25.93 0.0484
2021-05-10 2021-03-31 13F TERADYNE COM 880770102 830,401 43,732 5.56 101,043 7.14 0.0713
2021-02-23 2020-12-31 13F/A-1 TERADYNE COM 880770102 786,669 -31,156 -3.81 94,313 45.13 0.0699
2021-02-08 2020-12-31 13F TERADYNE COM 880770102 786,733 -31,092 94,321 37,107.3350
2020-11-06 2020-09-30 13F TERADYNE COM 880770102 817,825 -133,787 -14.06 64,984 -19.19 0.0547
2020-08-05 2020-06-30 13F TERADYNE COM 880770102 951,612 165,061 20.99 80,420 88.75 0.0713
2020-05-12 2020-03-31 13F TERADYNE COM 880770102 786,551 -193,094 -19.71 42,607 -36.22 0.0472
2020-02-05 2019-12-31 13F TERADYNE COM 880770102 979,645 -39,613 -3.89 66,802 13.18 0.0557
2019-11-13 2019-09-30 13F TERADYNE COM 880770102 1,019,258 -9,594 -0.93 59,025 19.75 0.0520
2019-08-12 2019-06-30 13F TERADYNE COM 880770102 1,028,852 479 0.05 49,292 20.31 0.0443
2019-05-10 2019-03-31 13F TERADYNE COM 880770102 1,028,373 -15,156 -1.45 40,970 25.11 0.0382
2019-02-14 2018-12-31 13F TERADYNE COM 880770102 1,043,529 22,416 2.20 32,746 -13.28 0.0349
2018-11-14 2018-09-30 13F TERADYNE COM 880770102 1,021,113 164,008 19.14 37,761 15.72 0.0333
2018-08-13 2018-06-30 13F TERADYNE COM 880770102 857,105 -22,362 -2.54 32,630 -18.83 0.0300
2018-05-14 2018-03-31 13F TERADYNE COM 880770102 879,467 20,988 2.44 40,200 11.84 0.0386
2018-02-12 2017-12-31 13F TERADYNE COM 880770102 858,479 -5,679 -0.66 35,944 11.54 0.0331
2017-11-02 2017-09-30 13F TERADYNE COM 880770102 864,158 7,179 0.84 32,225 25.22 0.0313
2017-08-08 2017-06-30 13F TERADYNE COM 880770102 856,979 31,580 3.83 25,735 0.25 0.0258
2017-05-11 2017-03-31 13F TERADYNE COM 880770102 825,399 22,818 2.84 25,670 25.92 0.0309
2017-02-13 2016-12-31 13F TERADYNE COM 880770102 802,581 8,554 1.08 20,386 18.97 0.0259
2016-11-10 2016-09-30 13F TERADYNE COM 880770102 794,027 -556,190 -41.19 17,135 -35.55 0.0226
2016-08-09 2016-06-30 13F TERADYNE COM 880770102 1,350,217 53,159 4.10 26,586 -5.06 0.0371
2016-05-10 2016-03-31 13F TERADYNE COM 880770102 1,297,058 635,582 96.09 28,004 104.83 0.0407
2016-02-09 2015-12-31 13F TERADYNE COM 880770102 661,476 1,598 0.24 13,672 15.04 0.0203
2015-11-12 2015-09-30 13F/A-1 TERADYNE COM 880770102 659,878 11,613 1.79 11,885 -4.96 0.0187
2015-11-09 2015-09-30 13F TERADYNE COM 880770102 659,878 11,885
2015-08-10 2015-06-30 13F TERADYNE COM 880770102 648,265 9,362 1.47 12,505 3.84 0.0186
2015-05-14 2015-03-31 13F/A-1 TERADYNE COM 880770102 638,903 38,816 6.47 12,043 1.41 0.0179
2015-05-12 2015-03-31 13F TERADYNE COM 880770102 638,903 12,044
2015-02-12 2014-12-31 13F TERADYNE COM 880770102 600,087 33,672 5.94 11,875 8.12 0.0184
2014-11-13 2014-09-30 13F TERADYNE COM 880770102 566,415 90,863 19.11 10,983 17.83 0.0186
2014-08-12 2014-06-30 13F TERADYNE COM 880770102 475,552 4,406 0.94 9,321 -0.53 0.0157
2014-05-13 2014-03-31 13F TERADYNE COM 880770102 471,146 -25,223 -5.08 9,371 7.15 0.0167
2014-02-12 2013-12-31 13F TERADYNE COM 880770102 496,369 248,205 100.02 8,746 113.32 0.0163
2013-11-05 2013-09-30 13F TERADYNE COM 880770102 248,164 -20,016 -7.46 4,100 -12.99 0.0085
2013-08-12 2013-06-30 13F TERADYNE COM 880770102 268,180 268,180 4,712 0.0104
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.