Teradata Corporation
US ˙ NYSE ˙ US88076W1036

SecurityTDC / Teradata Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership126,268 shares
Latest Disclosed Value $ 3,843,209
Sei Investments Co reports 1.93% decrease in ownership of TDC / Teradata Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 126,268 shares of Teradata Corporation (US:TDC) valued at $3,843,598 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 128,750 shares of Teradata Corporation. This represents a change in shares of -1.93% during the quarter. The current value of the position is $4,255,232 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)
2026-02-13 2025-12-31 13F TERADATA CORP DEL COM 88076W103 126,268 -2,482 -1.93 3,843 38.79 0.0038
2025-11-13 2025-09-30 13F TERADATA CORP DEL COM 88076W103 128,750 11,709 10.00 2,769 6.05 0.0030
2025-08-14 2025-06-30 13F TERADATA CORP DEL COM 88076W103 117,041 -769 -0.65 2,611 -1.36 0.0030
2025-05-14 2025-03-31 13F/A-1 TERADATA CORP DEL COM 88076W103 117,810 -137,698 -53.89 2,648 -66.74 0.0034
2025-05-13 2025-03-31 13F TERADATA CORP DEL COM 88076W103 278,414 22,906 7,715 0.0084
2025-02-11 2024-12-31 13F TERADATA CORP DEL COM 88076W103 255,508 -143,539 -35.97 7,959 -34.26 0.0102
2024-11-12 2024-09-30 13F TERADATA CORP DEL COM 88076W103 399,047 -113,544 -22.15 12,106 -31.66 0.0157
2024-08-13 2024-06-30 13F TERADATA CORP DEL COM 88076W103 512,591 -17,525 -3.31 17,715 -13.58 0.0251
2024-05-07 2024-03-31 13F TERADATA CORP DEL COM 88076W103 530,116 -20,189 -3.67 20,500 -14.39 0.0300
2024-02-14 2023-12-31 13F TERADATA CORP DEL COM 88076W103 550,305 36,349 7.07 23,944 3.47 0.0384
2023-11-14 2023-09-30 13F TERADATA CORP DEL COM 88076W103 513,956 -31,197 -5.72 23,142 -20.52 0.0416
2023-08-11 2023-06-30 13F TERADATA CORP DEL COM 88076W103 545,153 -99,393 -15.42 29,116 12.15 0.0508
2023-05-12 2023-03-31 13F TERADATA CORP DEL COM 88076W103 644,546 83,941 14.97 25,963 37.59 0.0482
2023-02-10 2022-12-31 13F TERADATA CORP DEL COM 88076W103 560,605 38,011 7.27 18,870 16.25 0.0419
2022-11-14 2022-09-30 13F TERADATA CORP DEL COM 88076W103 522,594 107,251 25.82 16,231 5.59 0.0362
2022-08-15 2022-06-30 13F TERADATA CORP DEL COM 88076W103 415,343 120,968 41.09 15,371 5.98 0.0332
2022-05-13 2022-03-31 13F TERADATA CORP DEL COM 88076W103 294,375 21,772 7.99 14,504 25.12 0.0292
2022-02-14 2021-12-31 13F TERADATA CORP DEL COM 88076W103 272,603 62,843 29.96 11,592 -3.52 0.0217
2021-11-12 2021-09-30 13F TERADATA CORP DEL COM 88076W103 209,760 -17,653 -7.76 12,015 5.74 0.0252
2021-08-06 2021-06-30 13F TERADATA CORP DEL COM 88076W103 227,413 56,384 32.97 11,363 72.40 0.0252
2021-05-12 2021-03-31 13F TERADATA CORP DEL COM 88076W103 171,029 -35,407 -17.15 6,591 42.08 0.0166
2021-02-08 2020-12-31 13F TERADATA CORP DEL COM 88076W103 206,436 89,758 76.93 4,639 75.12 0.0120
2020-12-04 2020-09-30 13F/A-1 TERADATA CORP DEL COM 88076W103 116,678 17,911 18.13 2,649 28.97 0.0077
2020-11-06 2020-09-30 13F TERADATA CORP DEL COM 88076W103 116,730 17,963 2,650 6,380.6108
2020-08-17 2020-06-30 13F/A-1 TERADATA CORP DEL COM 88076W103 98,767 25,239 34.33 2,054 37.02 0.0064
2020-08-11 2020-06-30 13F TERADATA CORP DEL COM 88076W103 66,317 -7,211 1,775 4,814.7820
2020-05-14 2020-03-31 13F TERADATA CORP DEL COM 88076W103 73,528 7,263 10.96 1,499 -15.50 0.0055
2020-02-06 2019-12-31 13F TERADATA CORP DEL COM 88076W103 66,265 -46,699 -41.34 1,774 -49.44 0.0053
2019-11-12 2019-09-30 13F TERADATA CORP DEL COM 88076W103 112,964 7,577 7.19 3,509 -7.34 0.0090
2019-08-14 2019-06-30 13F TERADATA CORP DEL COM 88076W103 105,387 -62,665 -37.29 3,787 -48.27 0.0124
2019-05-15 2019-03-31 13F TERADATA CORP DEL COM 88076W103 168,052 93,571 125.63 7,320 158.29 0.0246
2019-02-13 2018-12-31 13F TERADATA CORP DEL COM 88076W103 74,481 14,422 24.01 2,834 24.46 0.0101
2018-11-08 2018-09-30 13F TERADATA CORP DEL COM 88076W103 60,059 -16,133 -21.17 2,277 -25.59 0.0083
2018-08-03 2018-06-30 13F TERADATA CORP DEL COM 88076W103 76,192 -45,431 -37.35 3,060 -36.58 0.0104
2018-05-11 2018-03-31 13F TERADATA CORP DEL COM 88076W103 121,623 -26,228 -17.74 4,825 -15.14 0.0185
2018-02-08 2017-12-31 13F TERADATA CORP DEL COM 88076W103 147,851 -31,427 -17.53 5,686 -6.14 0.0197
2017-11-06 2017-09-30 13F TERADATA CORP DEL COM 88076W103 179,278 -150,435 -45.63 6,058 -37.70 0.0215
2017-07-31 2017-06-30 13F TERADATA CORP DEL COM 88076W103 329,713 -32,020 -8.85 9,724 -13.62 0.0388
2017-05-05 2017-03-31 13F TERADATA CORP DEL COM 88076W103 361,733 47,267 15.03 11,257 31.75 0.0493
2017-02-02 2016-12-31 13F TERADATA CORP DEL COM 88076W103 314,466 -2,582 -0.81 8,544 -13.06 0.0414
2016-11-04 2016-09-30 13F TERADATA CORP DEL COM 88076W103 317,048 216,323 214.77 9,828 289.07 0.0499
2016-08-11 2016-06-30 13F TERADATA CORP DEL COM 88076W103 100,725 79,138 366.60 2,526 346.29 0.0152
2016-05-10 2016-03-31 13F/A-1 TERADATA CORP DEL COM 88076W103 21,587 20,863 2,881.63 566 2,878.95 0.0035
2016-02-03 2015-12-31 13F TERADATA CORP DEL COM 88076W103 724 142 24.40 19 11.76 0.0001
2015-11-02 2015-09-30 13F/A-1 TERADATA CORP DEL COM 88076W103 582 -20,797 -97.28 17 -97.85 0.0002
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 88076W103 582 18
2015-08-07 2015-06-30 13F/A-1 TERADATA CORP DEL COM 88076W103 21,379 -338 -1.56 792 -17.33 0.0072
2015-08-04 2015-06-30 13F TERADATA CORP DEL COM 88076W103 21,379 -338 792 0.0072
2015-05-14 2015-03-31 13F/A-1 TERADATA CORP DEL COM 88076W103 21,717 134 0.62 958 1.59 0.0083
2015-05-01 2015-03-31 13F TERADATA CORP DEL COM 88076W103 21,717 958
2015-02-10 2014-12-31 13F TERADATA CORP DEL COM 88076W103 21,583 21,583 943 0.0083
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.