Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership164,900 shares
Latest Disclosed Value $ 48,886,254
Renaissance Technologies Llc reports 12,584.62% increase in ownership of TER / Teradyne, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 164,900 shares of Teradyne, Inc. (MX:TER) valued at $48,886,254 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,300 shares of Teradyne, Inc.. This represents a change in shares of 12,584.62% during the quarter.

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)
2026-05-14 2026-03-31 13F TERADYNE COM 880770102 164,900 163,600 12,584.62 48,886 19,376.49 0.0765
2026-02-12 2025-12-31 13F TERADYNE COM 880770102 1,300 -209,200 -99.38 252 -99.13 0.0004
2025-11-13 2025-09-30 13F TERADYNE COM 880770102 210,500 -680,600 -76.38 28,973 -63.84 0.0382
2025-08-13 2025-06-30 13F TERADYNE COM 880770102 891,100 425,439 91.36 80,128 108.32 0.1066
2025-05-14 2025-03-31 13F TERADYNE COM 880770102 465,661 405,410 672.87 38,464 407.03 0.0582
2025-02-13 2024-12-31 13F TERADYNE COM 880770102 60,251 60,251 7,587 0.0112
2024-05-13 2024-03-31 13F TERADYNE COM 880770102 0 -237,100 -100.00 0 -100.00
2024-02-13 2023-12-31 13F TERADYNE COM 880770102 237,100 -408,800 -63.29 26 -60.94 0.0398
2023-11-14 2023-09-30 13F TERADYNE COM 880770102 645,900 17,700 2.82 65 -7.25 0.1106
2023-08-11 2023-06-30 13F TERADYNE COM 880770102 628,200 -207,800 -24.86 70 -22.47 0.1008
2023-05-12 2023-03-31 13F TERADYNE COM 880770102 836,000 -319,500 -27.65 90 -11.00 0.1193
2023-02-13 2022-12-31 13F TERADYNE COM 880770102 1,155,500 -113,000 -8.91 101 -99.90 0.1381
2022-11-14 2022-09-30 13F TERADYNE COM 880770102 1,268,500 573,709 82.57 95,328 53.21 0.1349
2022-08-12 2022-06-30 13F TERADYNE COM 880770102 694,791 300,891 76.39 62,219 33.60 0.0737
2022-05-13 2022-03-31 13F TERADYNE COM 880770102 393,900 -180,600 -31.44 46,571 -50.43 0.0547
2022-02-11 2021-12-31 13F TERADYNE COM 880770102 574,500 107,300 22.97 93,948 84.20 0.1169
2021-11-12 2021-09-30 13F TERADYNE COM 880770102 467,200 467,200 51,004 0.0659
2021-08-13 2021-06-30 13F TERADYNE COM 880770102 0 -324,924 -100.00 0 -100.00
2021-05-13 2021-03-31 13F TERADYNE COM 880770102 324,924 -1,131,825 -77.70 39,537 -77.36 0.0492
2021-02-10 2020-12-31 13F TERADYNE COM 880770102 1,456,749 -1,986,100 -57.69 174,650 -36.16 0.1896
2020-11-13 2020-09-30 13F TERADYNE COM 880770102 3,442,849 -1,841,800 -34.85 273,569 -38.74 0.2732
2020-08-13 2020-06-30 13F TERADYNE COM 880770102 5,284,649 -556,701 -9.53 446,606 41.14 0.3855
2020-05-14 2020-03-31 13F TERADYNE COM 880770102 5,841,350 439,601 8.14 316,426 -14.10 0.3073
2020-02-13 2019-12-31 13F TERADYNE COM 880770102 5,401,749 -157,476 -2.83 368,345 14.42 0.2831
2019-11-13 2019-09-30 13F TERADYNE COM 880770102 5,559,225 474,425 9.33 321,935 32.15 0.2725
2019-08-12 2019-06-30 13F TERADYNE COM 880770102 5,084,800 985,600 24.04 243,613 49.17 0.2145
2019-05-14 2019-03-31 13F TERADYNE COM 880770102 4,099,200 2,336,100 132.50 163,312 195.18 0.1485
2019-02-12 2018-12-31 13F TERADYNE COM 880770102 1,763,100 860,800 95.40 55,326 65.81 0.0606
2018-11-13 2018-09-30 13F TERADYNE COM 880770102 902,300 -1,192,700 -56.93 33,367 -58.16 0.0343
2018-08-13 2018-06-30 13F/A-1 TERADYNE COM 880770102 2,095,000 -240,100 -10.28 79,757 -25.28 0.0869
2018-08-13 2018-06-30 13F TERADYNE COM 880770102 2,335,100 106,737
2018-05-14 2018-03-31 13F TERADYNE COM 880770102 2,335,100 -1,851,359 -44.22 106,737 -39.11 0.1167
2018-02-13 2017-12-31 13F TERADYNE COM 880770102 4,186,459 908,059 27.70 175,287 43.38 0.1932
2017-11-13 2017-09-30 13F TERADYNE COM 880770102 3,278,400 1,391,700 73.76 122,252 115.77 0.1439
2017-08-11 2017-06-30 13F TERADYNE COM 880770102 1,886,700 1,259,599 200.86 56,658 190.51 0.0723
2017-05-12 2017-03-31 13F TERADYNE COM 880770102 627,101 -509,099 -44.81 19,503 -32.42 0.0273
2017-02-13 2016-12-31 13F TERADYNE COM 880770102 1,136,200 -91,100 -7.42 28,859 8.96 0.0457
2016-11-14 2016-09-30 13F TERADYNE COM 880770102 1,227,300 941,100 328.83 26,485 370.01 0.0468
2016-08-12 2016-06-30 13F TERADYNE COM 880770102 286,200 -36,300 -11.26 5,635 -19.07 0.0107
2016-05-13 2016-03-31 13F TERADYNE COM 880770102 322,500 -863,100 -72.80 6,963 -71.59 0.0132
2016-02-11 2015-12-31 13F TERADYNE COM 880770102 1,185,600 1,185,600 267.63 24,506 251.95 0.0534
2015-11-12 2015-09-30 13F TERADYNE COM 880770102 0 -394,600 -100.00 0 -100.00
2015-08-14 2015-06-30 13F TERADYNE COM 880770102 394,600 344,500 687.62 7,612 706.36 0.0173
2015-05-13 2015-03-31 13F TERADYNE COM 880770102 50,100 -108,100 -68.33 944 -69.85 0.0020
2015-02-13 2014-12-31 13F TERADYNE COM 880770102 158,200 158,200 3,131 0.0076
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.