Teradyne, Inc.
US ˙ NasdaqGS ˙ US8807701029

SecurityTER / Teradyne, Inc.
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership139,826 shares
Latest Disclosed Value $ 41,452,816
Mackenzie Financial Corp reports 13.65% decrease in ownership of TER / Teradyne, Inc.

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 139,826 shares of Teradyne, Inc. (US:TER) valued at $41,452,816 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 161,925 shares of Teradyne, Inc.. This represents a change in shares of -13.65% during the quarter. The current value of the position is $56,889,606 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 139,826 -22,099 -13.65 41,453 30.42 0.0497
2026-02-18 2025-12-31 13F TERADYNE COM 880770102 161,925 5,669 3.63 31,783 47.78 0.0376
2025-11-13 2025-09-30 13F TERADYNE COM 880770102 156,256 124,259 388.35 21,507 647.55 0.0261
2025-08-13 2025-06-30 13F TERADYNE COM 880770102 31,997 -11,938 -27.17 2,877 -20.72 0.0037
2025-05-07 2025-03-31 13F TERADYNE COM 880770102 43,935 15,244 53.13 3,629 0.47 0.0052
2025-05-02 2024-12-31 13F/A-2 TERADYNE COM 880770102 28,691 12,946 82.22 3,613 71.35 0.0049
2025-02-20 2024-12-31 13F/A-1 TERADYNE COM 880770102 28,691 12,946 3,613 0.0047
2025-02-14 2024-12-31 13F Teradyne Common Stock 880770102 28,691 12,946 3,587 0.0051
2024-11-13 2024-09-30 13F TERADYNE COM 880770102 15,745 387 2.52 2,109 -7.42 0.0029
2024-08-14 2024-06-30 13F TERADYNE COM 880770102 15,358 -34,731 -69.34 2,277 -59.71 0.0034
2024-05-10 2024-03-31 13F TERADYNE COM 880770102 50,089 -169,911 -77.23 5,652 -76.33 0.0081
2024-01-30 2023-12-31 13F TERADYNE COM 880770102 220,000 -70,544 -24.28 23,874 -16.63 0.0360
2023-10-25 2023-09-30 13F TERADYNE COM 880770102 290,544 -77,051 -20.96 28,636 -30.15 0.0481
2023-08-03 2023-06-30 13F TERADYNE COM 880770102 367,595 -15,547 -4.06 40,998 -0.47 0.0622
2023-04-24 2023-03-31 13F TERADYNE COM 880770102 383,142 -16,693 -4.17 41,192 17.94 0.0636
2023-02-14 2022-12-31 13F TERADYNE COM 880770102 399,835 36,251 9.97 34,926 27.82 0.0583
2022-10-07 2022-09-30 13F Teradyne Common Stock 880770102 363,584 18,688 5.42 27,323 -11.53 0.0470
2022-08-10 2022-06-30 13F TERADYNE COM 880770102 344,896 210,911 157.41 30,885 94.97 0.0495
2022-05-13 2022-03-31 13F TERADYNE COM 880770102 133,985 27,543 25.88 15,841 -8.99 0.0212
2022-02-14 2021-12-31 13F TERADYNE COM 880770102 106,442 77,905 273.00 17,406 458.78 0.0235
2021-11-08 2021-09-30 13F TERADYNE COM 880770102 28,537 3,153 12.42 3,115 -8.38 0.0044
2021-08-11 2021-06-30 13F TERADYNE COM 880770102 25,384 6,581 35.00 3,400 48.60 0.0047
2021-05-14 2021-03-31 13F TERADYNE COM 880770102 18,803 2,780 17.35 2,288 19.10 0.0035
2021-02-10 2020-12-31 13F TERADYNE COM 880770102 16,023 1,551 10.72 1,921 67.04 0.0041
2020-11-13 2020-09-30 13F TERADYNE COM 880770102 14,472 -417 -2.80 1,150 -8.59 0.0029
2020-08-13 2020-06-30 13F TERADYNE COM 880770102 14,889 10,293 223.96 1,258 405.22 0.0034
2020-05-14 2020-03-31 13F TERADYNE COM 880770102 4,596 -182,558 -97.54 249 -98.05 0.0008
2020-02-13 2019-12-31 13F TERADYNE COM 880770102 187,154 -9,336 -4.75 12,762 12.15 0.0314
2019-11-14 2019-09-30 13F TERADYNE COM 880770102 196,490 -2,222 -1.12 11,379 19.53 0.0299
2019-08-23 2019-06-30 13F/A-1 TERADYNE COM 880770102 198,712 -18,665 -8.59 9,520 9.93 0.0246
2019-08-14 2019-06-30 13F TERADYNE COM 880770102 198,712 -18,665 9,520
2019-05-15 2019-03-31 13F TERADYNE COM 880770102 217,377 -39,623 -15.42 8,660 7.38 0.0209
2019-02-06 2018-12-31 13F TERADYNE COM 880770102 257,000 -94,950 -26.98 8,065 -38.03 0.0212
2018-11-15 2018-09-30 13F TERADYNE COM 880770102 351,950 351,950 13,015 0.0317
2015-02-11 2014-12-31 13F TERADYNE COM 880770102 0 -29,800 -100.00 0 -100.00
2014-11-12 2014-09-30 13F TERADYNE COM 880770102 29,800 -4,400 -12.87 578 -13.73 0.0029
2014-08-11 2014-06-30 13F TERADYNE COM 880770102 34,200 0 0.00 670 -1.47 0.0031
2014-05-14 2014-03-31 13F TERADYNE COM 880770102 34,200 34,200 680 0.0033
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.