Telephone and Data Systems, Inc.
US ˙ NYSE ˙ US8794338298

SecurityTDS / Telephone and Data Systems, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership2,998 shares
Latest Disclosed Value $ 126,216
Quantbot Technologies LP reports 77.34% decrease in ownership of TDS / Telephone and Data Systems, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 2,998 shares of Telephone and Data Systems, Inc. (US:TDS) valued at $126,216 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 13,232 shares of Telephone and Data Systems, Inc.. This represents a change in shares of -77.34% during the quarter. The current value of the position is $117,492 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.

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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)
2026-05-13 2026-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 2,998 -10,234 -77.34 126 -76.75 0.0052
2026-02-10 2025-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 13,232 -23,443 -63.92 543 -62.33 0.0180
2025-11-12 2025-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 36,675 -76,894 -67.71 1,439 -64.38 0.0392
2025-08-13 2025-06-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 113,569 113,569 4,041 0.1036
2025-05-13 2025-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -9,518 -100.00 0 -100.00
2025-02-11 2024-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 9,518 9,518 325 0.0119
2024-08-09 2024-06-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -25,421 -100.00 0 -100.00
2024-05-06 2024-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 25,421 12,999 104.64 407 79.30 0.0230
2024-02-14 2023-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 12,422 -16,045 -56.36 228 -56.43 0.0132
2023-11-07 2023-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 28,467 -1,338 -4.49 521 112.65 0.0350
2023-08-08 2023-06-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 29,805 29,805 245 0.0161
2022-05-16 2022-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -100 -100.00 0 -100.00
2022-02-11 2021-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 100 -120 -54.55 2 -50.00 0.0002
2021-11-09 2021-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 220 -120 -35.29 4 -42.86 0.0003
2021-08-12 2021-06-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 340 -1,302 -79.29 7 -81.08 0.0006
2021-05-14 2021-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 1,642 1,642 37 0.0035
2020-05-13 2020-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -12,725 -100.00 0 -100.00
2020-02-10 2019-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 12,725 -19,810 -60.89 323 -61.50 0.0320
2019-11-12 2019-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 32,535 -457 -1.39 839 -16.27 0.0827
2019-08-13 2019-06-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 32,992 20,682 168.01 1,002 165.08 0.1002
2019-05-13 2019-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 12,310 12,310 378 0.0360
2019-02-13 2018-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -55,694 -100.00 0 -100.00
2018-11-13 2018-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 55,694 9,593 20.81 1,694 34.02 0.1185
2018-08-13 2018-06-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 46,101 42,856 1,320.68 1,264 1,304.44 0.0861
2018-05-11 2018-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 3,245 3,245 90 0.0077
2017-05-10 2017-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -4,749 -100.00 0 -100.00
2017-02-09 2016-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 4,749 -2,329 -32.90 137 -28.65 0.0152
2016-10-31 2016-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 7,078 7,078 0.00 192 0.0213
2016-04-28 2016-03-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -4,640 -100.00 0 -100.00
2016-01-22 2015-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 4,640 -4,461 -49.02 120 -47.14 0.0206
2015-10-22 2015-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 9,101 9,101 0.00 227 0.0396
2015-01-27 2014-12-31 13F TELEPHONE AND DATA SYSTEMS COM 879433829 0 -13,306 -100.00 0 -100.00
2014-10-15 2014-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 13,306 11,006 478.52 318 374.63 0.0437
2013-10-28 2013-09-30 13F TELEPHONE AND DATA SYSTEMS COM 879433829 2,300 2,300 67 0.0415
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.