Teradyne, Inc.
US ˙ NasdaqGS ˙ US8807701029

SecurityTER / Teradyne, Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership63,191 shares
Latest Disclosed Value $ 18,733,603
Engineers Gate Manager LP reports 27.74% decrease in ownership of TER / Teradyne, Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 63,191 shares of Teradyne, Inc. (US:TER) valued at $18,733,604 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 87,450 shares of Teradyne, Inc.. This represents a change in shares of -27.74% during the quarter. The current value of the position is $25,887,457 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)
2026-05-15 2026-03-31 13F TERADYNE COM 880770102 63,191 -24,259 -27.74 18,734 10.68 0.2342
2026-02-17 2025-12-31 13F TERADYNE COM 880770102 87,450 33,631 62.49 16,927 128.51 0.2007
2025-11-14 2025-09-30 13F TERADYNE COM 880770102 53,819 -300,159 -84.80 7,408 -76.73 0.0848
2025-08-14 2025-06-30 13F TERADYNE COM 880770102 353,978 95,553 36.98 31,830 49.12 0.3960
2025-05-15 2025-03-31 13F TERADYNE COM 880770102 258,425 258,425 21,346 0.3598
2025-02-14 2024-12-31 13F TERADYNE COM 880770102 0 -8,389 -100.00 0 -100.00
2024-11-14 2024-09-30 13F TERADYNE COM 880770102 8,389 8,389 1,124 0.0219
2024-02-14 2023-12-31 13F TERADYNE COM 880770102 0 -17,849 -100.00 0 -100.00
2023-11-14 2023-09-30 13F TERADYNE COM 880770102 17,849 17,849 1,793 0.0663
2023-08-14 2023-06-30 13F TERADYNE COM 880770102 0 -47,502 -100.00 0 -100.00
2023-05-15 2023-03-31 13F TERADYNE COM 880770102 47,502 47,502 5,107 0.2134
2023-02-14 2022-12-31 13F TERADYNE COM 880770102 0 -18,978 -100.00 0 -100.00
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 18,978 10,586 126.14 1,426 89.63 0.0887
2022-08-15 2022-06-30 13F TERADYNE COM 880770102 8,392 -380 -4.33 752 -27.48 0.0276
2022-05-16 2022-03-31 13F TERADYNE COM 880770102 8,772 1,002 12.90 1,037 -18.41 0.0406
2022-02-14 2021-12-31 13F TERADYNE COM 880770102 7,770 -64,530 -89.25 1,271 -83.90 0.0572
2021-11-15 2021-09-30 13F TERADYNE COM 880770102 72,300 53,363 281.79 7,893 211.12 0.4498
2021-08-16 2021-06-30 13F TERADYNE COM 880770102 18,937 -16,063 -45.89 2,537 -40.43 0.1632
2021-05-17 2021-03-31 13F TERADYNE COM 880770102 35,000 235 0.68 4,259 2.18 0.2110
2021-02-16 2020-12-31 13F TERADYNE COM 880770102 34,765 -33,363 -48.97 4,168 -23.00 0.1807
2020-11-16 2020-09-30 13F TERADYNE COM 880770102 68,128 63,268 1,301.81 5,413 1,217.03 0.2540
2020-08-17 2020-06-30 13F TERADYNE COM 880770102 4,860 -3,873 -44.35 411 -13.11 0.0209
2020-05-15 2020-03-31 13F TERADYNE COM 880770102 8,733 -43,864 -83.40 473 -86.81 0.0341
2020-02-14 2019-12-31 13F TERADYNE COM 880770102 52,597 42,277 409.66 3,587 499.83 0.1577
2019-11-14 2019-09-30 13F TERADYNE COM 880770102 10,320 2,047 24.74 598 50.63 0.0304
2019-08-14 2019-06-30 13F TERADYNE COM 880770102 8,273 -137,140 -94.31 397 -93.15 0.0219
2019-05-15 2019-03-31 13F TERADYNE COM 880770102 145,413 36,848 33.94 5,793 70.03 0.3508
2019-02-14 2018-12-31 13F TERADYNE COM 880770102 108,565 108,565 3,407 0.2726
2018-08-03 2018-06-30 13F TERADYNE COM 880770102 0 -125,435 -100.00 0 -100.00
2018-05-07 2018-03-31 13F TERADYNE COM 880770102 125,435 38,168 43.74 5,734 56.92 0.3822
2018-02-01 2017-12-31 13F TERADYNE COM 880770102 87,267 63,751 271.10 3,654 316.65 0.2508
2017-11-13 2017-09-30 13F TERADYNE COM 880770102 23,516 -148,707 -86.35 877 -83.04 0.0738
2017-08-10 2017-06-30 13F TERADYNE COM 880770102 172,223 172,223 5,172 0.4660
2017-02-10 2016-12-31 13F TERADYNE COM 880770102 0 -159,740 -100.00 0 -100.00
2016-11-09 2016-09-30 13F TERADYNE COM 880770102 159,740 142,040 802.49 3,447 887.68 0.3589
2016-08-11 2016-06-30 13F TERADYNE COM 880770102 17,700 17,700 0.00 349 0.0250
2016-05-09 2016-03-31 13F TERADYNE COM 880770102 0 -34,572 -100.00 0 -100.00
2016-02-05 2015-12-31 13F TERADYNE COM 880770102 34,572 -158,388 -82.08 715 -79.42 0.0483
2015-11-16 2015-09-30 13F TERADYNE COM 880770102 192,960 126,772 191.53 3,475 172.12 0.2959
2015-08-14 2015-06-30 13F TERADYNE COM 880770102 66,188 66,188 1,277 0.1250
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.