Teradyne, Inc.
US ˙ NasdaqGS ˙ US8807701029

SecurityTER / Teradyne, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership64,316 shares
Latest Disclosed Value $ 19,067
Natixis Advisors, L.p. reports 32.42% increase in ownership of TER / Teradyne, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 64,316 shares of Teradyne, Inc. (US:TER) valued at $19,067,121 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 48,569 shares of Teradyne, Inc.. This represents a change in shares of 32.42% during the quarter. The current value of the position is $26,348,336 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.

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)
2026-05-13 2026-03-31 13F TERADYNE COM 880770102 64,316 15,747 32.42 19 111.11 0.0265
2026-02-10 2025-12-31 13F TERADYNE COM 880770102 48,569 -3,206 -6.19 9 28.57 0.0133
2025-11-13 2025-09-30 13F TERADYNE INC COM 880770102 51,775 230 0.45 7 75.00 0.0104
2025-08-13 2025-06-30 13F TERADYNE COM 880770102 51,545 -23,665 -31.47 5 -33.33 0.0074
2025-05-08 2025-03-31 13F TERADYNE COM 880770102 75,210 -2,104 -2.72 6 -33.33 0.0115
2025-02-10 2024-12-31 13F TERADYNE COM 880770102 77,314 581 0.76 10 -10.00 0.0182
2024-11-06 2024-09-30 13F TERADYNE COM 880770102 76,733 -4,209 -5.20 10 -16.67 0.0200
2024-08-01 2024-06-30 13F TERADYNE COM 880770102 80,942 -2,254 -2.71 12 33.33 0.0261
2024-04-25 2024-03-31 13F TERADYNE COM 880770102 83,196 -315 -0.38 9 0.00 0.0216
2024-02-06 2023-12-31 13F TERADYNE COM 880770102 83,511 -2,195 -2.56 9 12.50 0.0239
2023-11-13 2023-09-30 13F TERADYNE COM 880770102 85,706 -5,242 -5.76 9 -20.00 0.0263
2023-08-15 2023-06-30 13F TERADYNE COM 880770102 90,948 -4,217 -4.43 10 0.00 0.0313
2023-05-11 2023-03-31 13F TERADYNE COM 880770102 95,165 4,929 5.46 10 42.86 0.0352
2023-01-27 2022-12-31 13F TERADYNE COM 880770102 90,236 76,772 570.20 8 -99.31 0.0298
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 13,464 -23,610 -63.68 1,012 -69.52 0.0043
2022-08-12 2022-06-30 13F TERADYNE COM 880770102 37,074 2,969 8.71 3,320 -17.66 0.0146
2022-05-12 2022-03-31 13F TERADYNE COM 880770102 34,105 11,744 52.52 4,032 10.25 0.0154
2022-02-08 2021-12-31 13F TERADYNE COM 880770102 22,361 2,404 12.05 3,657 67.83 0.0140
2021-11-15 2021-09-30 13F TERADYNE SPONSORED ADS 880770102 19,957 6,685 50.37 2,179 22.55 0.0090
2021-08-12 2021-06-30 13F TERADYNE COM 880770102 13,272 1,756 15.25 1,778 26.91 0.0083
2021-05-05 2021-03-31 13F TERADYNE COM 880770102 11,516 -2,516 -17.93 1,401 -16.71 0.0073
2021-02-12 2020-12-31 13F TERADYNE COM 880770102 14,032 14,032 1,682 0.0097
2020-11-12 2020-09-30 13F TERADYNE COM 880770102 0 -10,776 -100.00 0 -100.00
2020-08-11 2020-06-30 13F TERADYNE COM 880770102 10,776 546 5.34 911 64.44 0.0060
2020-04-27 2020-03-31 13F TERADYNE COM 880770102 10,230 10,230 554 0.0045
2019-05-15 2019-03-31 13F/A-1 TERADYNE COM 880770102 0 -43,183 -100.00 0 -100.00
2019-02-13 2018-12-31 13F/A-1 TERADYNE COM 880770102 43,183 -18,487 -29.98 1,354 -40.61 0.0134
2019-02-13 2018-12-31 13F TERADYNE COM 880770102 43,183 -18,487 1,354
2018-11-13 2018-09-30 13F TERADYNE COM 880770102 61,670 2,856 4.86 2,280 1.83 0.0201
2018-08-14 2018-06-30 13F/A-1 TERADYNE COM 880770102 58,814 16,226 38.10 2,239 15.00 0.0214
2018-08-14 2018-06-30 13F TERADYNE COM 880770102 58,814 2,239
2018-05-10 2018-03-31 13F TERADYNE COM 880770102 42,588 42,588 1,947 0.0192
2017-05-12 2017-03-31 13F TERADYNE COM 880770102 0 -10,400 -100.00 0 -100.00
2017-02-07 2016-12-31 13F TERADYNE COM 880770102 10,400 -2,767 -21.01 264 -7.04 0.0032
2016-11-04 2016-09-30 13F TERADYNE COM 880770102 13,167 -9,174 -41.06 284 -35.45 0.0037
2016-08-01 2016-06-30 13F TERADYNE COM 880770102 22,341 -213 -0.94 440 -9.47 0.0061
2016-05-06 2016-03-31 13F TERADYNE COM 880770102 22,554 342 1.54 486 5.88 0.0073
2016-02-12 2015-12-31 13F TERADYNE COM 880770102 22,212 -4,950 -18.22 459 -6.13 0.0075
2015-11-12 2015-09-30 13F TERADYNE COM 880770102 27,162 -1,508 -5.26 489 -11.57 0.0085
2015-08-14 2015-06-30 13F TERADYNE COM 880770102 28,670 175 0.61 553 2.98 0.0094
2015-05-15 2015-03-31 13F TERADYNE COM 880770102 28,495 -814 -2.78 537 -7.41 0.0094
2015-02-05 2014-12-31 13F TERADYNE COM 880770102 29,309 2,081 7.64 580 9.85 0.0109
2014-11-03 2014-09-30 13F TERADYNE COM 880770102 27,228 -29,220 -51.76 528 -52.30 0.0106
2014-08-13 2014-06-30 13F TERADYNE COM 880770102 56,448 36,718 186.10 1,107 182.40 0.0159
2014-05-13 2014-03-31 13F TERADYNE COM 880770102 19,730 1,114 5.98 392 19.51 0.0060
2014-02-12 2013-12-31 13F TERADYNE COM 880770102 18,616 48 0.26 328 6.84 0.0054
2013-10-30 2013-09-30 13F TERADYNE COM 880770102 18,568 -30,864 -62.44 307 -64.63 0.0057
2013-07-19 2013-06-30 13F TERADYNE COM 880770102 49,432 49,432 868 0.0173
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.