泰瑞達公司
US ˙ NasdaqGS ˙ US8807701029

SecurityTER / Teradyne, Inc.
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership67,074 shares
Latest Disclosed Value $ 19,884,758
Asset Management One Co., Ltd. reports 1.42% increase in ownership of TER / Teradyne, Inc.

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 67,074 shares of Teradyne, Inc. (US:TER) valued at $19,884,758 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 66,132 shares of Teradyne, Inc.. This represents a change in shares of 1.42% during the quarter. The current value of the position is $27,289,728 USD.

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)
2026-05-08 2026-03-31 13F TERADYNE COM 880770102 67,074 942 1.42 19,885 52.40 0.0586
2026-01-27 2025-12-31 13F TERADYNE COM 880770102 66,132 -1,250 -1.86 13,048 40.68 0.0363
2025-10-22 2025-09-30 13F TERADYNE COM 880770102 67,382 -3,275 -4.64 9,274 45.98 0.0269
2025-07-31 2025-06-30 13F TERADYNE COM 880770102 70,657 2,045 2.98 6,353 12.11 0.0199
2025-04-23 2025-03-31 13F TERADYNE COM 880770102 68,612 3,589 5.52 5,667 -32.20 0.0196
2025-01-30 2024-12-31 13F TERADYNE COM 880770102 65,023 4,930 8.20 8,358 3.85 0.0287
2024-10-30 2024-09-30 13F TERADYNE COM 880770102 60,093 1,471 2.51 8,048 -7.42 0.0286
2024-07-18 2024-06-30 13F TERADYNE COM 880770102 58,622 2,463 4.39 8,693 37.20 0.0333
2024-05-02 2024-03-31 13F TERADYNE COM 880770102 56,159 -3,435 -5.76 6,336 -3.72 0.0244
2024-01-24 2023-12-31 13F TERADYNE COM 880770102 59,594 -4,785 -7.43 6,582 1.76 0.0265
2023-10-19 2023-09-30 13F TERADYNE COM 880770102 64,379 -1,567 -2.38 6,468 -11.91 0.0288
2023-07-31 2023-06-30 13F TERADYNE COM 880770102 65,946 2,420 3.81 7,342 7.50 0.0311
2023-04-25 2023-03-31 13F TERADYNE COM 880770102 63,526 -3,268 -4.89 6,830 16.87 0.0310
2023-02-06 2022-12-31 13F TERADYNE COM 880770102 66,794 -3,039 -4.35 5,844 11.36 0.0285
2022-11-04 2022-09-30 13F TERADYNE COM 880770102 69,833 -495 -0.70 5,247 -16.67 0.0267
2022-07-29 2022-06-30 13F TERADYNE COM 880770102 70,328 -436 -0.62 6,297 -24.73 0.0296
2022-05-13 2022-03-31 13F TERADYNE COM 880770102 70,764 -12,617 -15.13 8,366 -39.78 0.0327
2022-02-09 2021-12-31 13F TERADYNE COM 880770102 83,381 1,677 2.05 13,892 55.76 0.0484
2021-11-02 2021-09-30 13F TERADYNE COM 880770102 81,704 -202 -0.25 8,919 -18.71 0.0342
2021-08-03 2021-06-30 13F TERADYNE COM 880770102 81,906 -2,950 -3.48 10,972 6.27 0.0408
2021-05-14 2021-03-31 13F TERADYNE COM 880770102 84,856 -5,567 -6.16 10,325 -2.70 0.0410
2021-02-12 2020-12-31 13F TERADYNE COM 880770102 90,423 -1,284 -1.40 10,611 45.58 0.0437
2020-11-13 2020-09-30 13F TERADYNE COM 880770102 91,707 4,071 4.65 7,289 -1.58 0.0335
2020-08-14 2020-06-30 13F TERADYNE COM 880770102 87,636 865 1.00 7,406 57.54 0.0364
2020-05-14 2020-03-31 13F TERADYNE COM 880770102 86,771 33 0.04 4,701 -20.52 0.0274
2020-02-14 2019-12-31 13F TERADYNE COM 880770102 86,738 86,738 5,915 0.0267
2019-11-14 2019-09-30 13F TERADYNE COM 880770102 0 -34,047 -100.00 0 -100.00
2019-08-14 2019-06-30 13F TERADYNE COM 880770102 34,047 34,047 1,631 0.0080
2017-11-14 2017-09-30 13F TERADYNE COM 880770102 0 -9,520 -100.00 0 -100.00
2017-08-14 2017-06-30 13F TERADYNE COM 880770102 9,520 9,520 286 0.0007
2016-08-03 2016-06-30 13F TERADYNE COM 880770102 0 -11,555 -100.00 0 -100.00
2016-05-05 2016-03-31 13F TERADYNE COM 880770102 11,555 4,150 56.04 249 57.59 0.0036
2016-01-28 2015-12-31 13F TERADYNE COM 880770102 7,405 7,405 158 0.0024
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.