Teradyne, Inc.
US ˙ NasdaqGS ˙ US8807701029

SecurityTER / Teradyne, Inc.
InstitutionEdgestream Partners, L.P.
Latest Disclosed Ownership2,655 shares
Latest Disclosed Value $ 787,101
Edgestream Partners, L.P. reports 54.66% decrease in ownership of TER / Teradyne, Inc.

On May 18, 2026 - Edgestream Partners, L.P. filed a 13F-HR form disclosing ownership of 2,655 shares of Teradyne, Inc. (US:TER) valued at $787,101 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 5,856 shares of Teradyne, Inc.. This represents a change in shares of -54.66% during the quarter. The current value of the position is $1,087,674 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)
2026-05-18 2026-03-31 13F TERADYNE COM 880770102 2,655 -3,201 -54.66 787 -30.54 0.0258
2026-02-13 2025-12-31 13F TERADYNE COM 880770102 5,856 5,856 1,133 0.0319
2025-11-12 2025-09-30 13F TERADYNE COM 880770102 0 -67,498 -100.00 0 -100.00
2025-08-13 2025-06-30 13F TERADYNE COM 880770102 67,498 67,498 6,069 0.1688
2025-05-02 2025-03-31 13F TERADYNE COM 880770102 0 -11,911 -100.00 0 -100.00
2025-02-07 2024-12-31 13F TERADYNE COM 880770102 11,911 -24,951 -67.69 1,500 -69.63 0.0639
2024-11-14 2024-09-30 13F TERADYNE COM 880770102 36,862 36,862 4,937 0.2171
2024-05-10 2024-03-31 13F TERADYNE COM 880770102 0 -14,472 -100.00 0 -100.00
2024-02-14 2023-12-31 13F TERADYNE COM 880770102 14,472 -8,561 -37.17 1,571 -32.12 0.1130
2023-11-15 2023-09-30 13F TERADYNE COM 880770102 23,033 18,448 402.36 2,314 353.53 0.1843
2023-08-10 2023-06-30 13F TERADYNE COM 880770102 4,585 4,585 510 0.0462
2023-02-13 2022-12-31 13F TERADYNE COM 880770102 0 -56,388 -100.00 0 -100.00
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 56,388 42,572 308.14 4,238 242.60 0.3277
2022-08-12 2022-06-30 13F TERADYNE COM 880770102 13,816 12,028 672.71 1,237 486.26 0.0975
2022-05-13 2022-03-31 13F TERADYNE COM 880770102 1,788 -7,534 -80.82 211 -86.15 0.0168
2022-02-15 2021-12-31 13F TERADYNE COM 880770102 9,322 -5,293 -36.22 1,524 -4.51 0.0950
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 14,615 14,615 1,596 0.0986
2021-08-10 2021-06-30 13F TERADYNE COM 880770102 0 -65,493 -100.00 0 -100.00
2021-05-06 2021-03-31 13F TERADYNE COM 880770102 65,493 -35,654 -35.25 7,969 -34.29 0.4451
2021-02-11 2020-12-31 13F TERADYNE COM 880770102 101,147 43,632 75.86 12,127 165.36 0.6093
2020-11-10 2020-09-30 13F TERADYNE COM 880770102 57,515 37,366 185.45 4,570 168.35 0.2952
2020-08-11 2020-06-30 13F TERADYNE COM 880770102 20,149 -8,343 -29.28 1,703 10.37 0.0895
2020-05-14 2020-03-31 13F TERADYNE COM 880770102 28,492 19,368 212.28 1,543 148.07 0.1426
2020-02-13 2019-12-31 13F TERADYNE COM 880770102 9,124 -4 -0.04 622 17.58 0.0323
2019-11-08 2019-09-30 13F TERADYNE COM 880770102 9,128 9,128 529 0.0506
2019-08-08 2019-06-30 13F TERADYNE COM 880770102 0 -10,631 -100.00 0 -100.00
2019-05-15 2019-03-31 13F TERADYNE COM 880770102 10,631 -27,522 -72.14 424 -64.58 0.0622
2019-02-14 2018-12-31 13F TERADYNE COM 880770102 38,153 38,153 1,197 0.2097
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.