Teradyne, Inc.
MX ˙ BMV ˙ US8807701029
SecurityMX:TER / Teradyne, Inc.
InstitutionLord, Abbett & Co. Llc
Latest Disclosed Ownership155,766 shares
Latest Disclosed Value $ 46,178
Lord, Abbett & Co. Llc reports 55.77% increase in ownership of TER / Teradyne, Inc.

On May 14, 2026 - Lord, Abbett & Co. Llc filed a 13F-HR form disclosing ownership of 155,766 shares of Teradyne, Inc. (MX:TER) valued at $46,178 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 100,000 shares of Teradyne, Inc.. This represents a change in shares of 55.77% 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 155,766 55,766 55.77 46 142.11 0.1508
2026-02-13 2025-12-31 13F TERADYNE COM 880770102 100,000 100,000 19 0.0594
2025-02-14 2024-12-31 13F Teradyne COM 880770102 0 -134,499 -100.00 0 -100.00
2024-12-13 2024-09-30 13F/A-1 Teradyne COM 880770102 134,499 -35,581 -20.92 18 -28.00 0.0573
2024-11-14 2024-09-30 13F Teradyne COM 880770102 134,499 -35,581 18 0.0581
2024-10-07 2024-06-30 13F/A-1 Teradyne COM 880770102 170,080 -27,900 -14.09 25 13.64 0.0825
2024-08-14 2024-06-30 13F Teradyne COM 880770102 170,080 -27,900 25 0.0842
2024-10-07 2024-03-31 13F/A-1 Teradyne COM 880770102 197,980 0 0.00 22 4.76 0.0721
2024-05-09 2024-03-31 13F Teradyne COM 880770102 197,980 0 22 0.0734
2024-10-07 2023-12-31 13F/A-1 Teradyne COM 880770102 197,980 18,990 10.61 21 23.53 0.0754
2024-02-12 2023-12-31 13F Teradyne COM 880770102 197,980 18,990 21 0.0772
2024-10-07 2023-09-30 13F/A-1 Teradyne COM 880770102 178,990 0 0.00 18 -10.53 0.0669
2023-11-13 2023-09-30 13F Teradyne COM 880770102 178,990 0 18 0.0674
2024-10-07 2023-06-30 13F/A-1 Teradyne COM 880770102 178,990 180 0.10 20 0.00 0.0686
2023-08-14 2023-06-30 13F Teradyne COM 880770102 178,990 180 20 0.0686
2024-10-07 2023-03-31 13F/A-1 Teradyne COM 880770102 178,810 200 0.11 19 26.67 0.0693
2023-05-12 2023-03-31 13F Teradyne COM 880770102 178,810 200 19 0.0694
2024-10-07 2022-12-31 13F/A-1 Teradyne COM 880770102 178,610 -70 -0.04 16 -99.89 0.0558
2023-02-10 2022-12-31 13F Teradyne COM 880770102 178,610 -70 16 0.0559
2022-11-14 2022-09-30 13F TERADYNE INC COM COM 880770102 178,680 -4,660 -2.54 13,428 -18.21 0.0490
2022-08-12 2022-06-30 13F TERADYNE INC COM COM 880770102 183,340 2,590 1.43 16,418 -23.17 0.0580
2022-05-13 2022-03-31 13F TERADYNE INC COM COM 880770102 180,750 13,500 8.07 21,370 -21.86 0.0570
2022-02-11 2021-12-31 13F TERADYNE INC COM COM 880770102 167,250 -18,730 -10.07 27,350 34.71 0.0623
2021-11-09 2021-09-30 13F TERADYNE INC COM COM 880770102 185,980 -3,400 -1.80 20,303 -19.97 0.0486
2021-08-11 2021-06-30 13F TERADYNE INC COM COM 880770102 189,380 -249,153 -56.82 25,369 -52.46 0.0612
2021-05-11 2021-03-31 13F TERADYNE INC COM COM 880770102 438,533 -100,044 -18.58 53,361 -17.36 0.1360
2021-02-09 2020-12-31 13F TERADYNE INC COM COM 880770102 538,577 -44,118 -7.57 64,570 39.46 0.1705
2020-11-12 2020-09-30 13F TERADYNE INC COM COM 880770102 582,695 -176,129 -23.21 46,301 -27.80 0.1478
2020-08-14 2020-06-30 13F TERADYNE INC COM COM 880770102 758,824 -159,885 -17.40 64,128 28.86 0.2244
2020-05-14 2020-03-31 13F TERADYNE INC COM COM 880770102 918,709 -207,624 -18.43 49,766 -35.20 0.2205
2020-02-14 2019-12-31 13F TERADYNE INC COM COM 880770102 1,126,333 -187,966 -14.30 76,805 0.91 0.2562
2019-11-14 2019-09-30 13F TERADYNE INC COM COM 880770102 1,314,299 1,314,299 76,111 0.2591
2018-05-15 2018-03-31 13F TERADYNE INC COM COM 880770102 0 -153,554 -100.00 0 -100.00
2018-02-14 2017-12-31 13F TERADYNE INC COM COM 880770102 153,554 -730,036 -82.62 6,429 -80.49 0.0183
2017-11-14 2017-09-30 13F TERADYNE INC COM COM 880770102 883,590 883,590 32,949 0.0962
2017-08-24 2017-06-30 13F/A-1 TERADYNE INC COM COM 880770102 0 -384,262 -100.00 0 -100.00
2017-05-15 2017-03-31 13F TERADYNE INC COM COM 880770102 384,262 384,262 11,951 0.0358
2016-08-12 2016-06-30 13F TERADYNE INC COM COM 880770102 0 -448,144 -100.00 0 -100.00
2016-05-16 2016-03-31 13F TERADYNE INC COM COM 880770102 448,144 -467,256 -51.04 9,675 -48.87 0.0304
2016-02-16 2015-12-31 13F TERADYNE INC COM COM 880770102 915,400 0 0.00 18,921 14.77 0.0569
2015-11-16 2015-09-30 13F TERADYNE INC COM COM 880770102 915,400 -46,800 -4.86 16,486 -11.18 0.0497
2015-08-14 2015-06-30 13F TERADYNE INC COM COM 880770102 962,200 -13,300 -1.36 18,561 0.94 0.0489
2015-05-15 2015-03-31 13F TERADYNE INC COM COM 880770102 975,500 -393,200 -28.73 18,388 -32.12 0.0465
2015-02-13 2014-12-31 13F Teradyne COM 880770102 1,368,700 -304,800 -18.21 27,087 -16.52 0.0687
2014-11-14 2014-09-30 13F Teradyne COM 880770102 1,673,500 -589,100 -26.04 32,449 -26.83 0.0814
2014-08-20 2014-06-30 13F/A-1 TERADYNE INC COM COM 880770102 2,262,600 -125,300 -5.25 44,347 -6.63 0.1007
2014-08-14 2014-06-30 13F TERADYNE INC COM COM 880770102 2,262,600 44,347
2014-05-15 2014-03-31 13F TERADYNE COM 880770102 2,387,900 -10,600 -0.44 47,495 12.38 0.1082
2014-03-05 2013-12-31 13F/A-1 Teradyne COM 880770102 2,398,500 -232,500 -8.84 42,262 -2.77 0.0941
2014-02-14 2013-12-31 13F Teradyne COM 880770102 2,398,500 42,262
2013-11-14 2013-09-30 13F Teradyne COM 880770102 2,631,000 -201,200 -7.10 43,464 -12.66 0.1001
2013-08-14 2013-06-30 13F Teradyne COM 880770102 2,832,200 2,832,200 49,762 0.1153
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.