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

SecurityTDS / Telephone and Data Systems, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership24,161 shares
Latest Disclosed Value $ 1,017,178
Citigroup Inc reports 14.96% decrease in ownership of TDS / Telephone and Data Systems, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 24,161 shares of Telephone and Data Systems, Inc. (US:TDS) valued at $1,017,178 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 28,412 shares of Telephone and Data Systems, Inc.. This represents a change in shares of -14.96% during the quarter. The current value of the position is $958,225 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)
2026-05-11 2026-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 24,161 -4,251 -14.96 1,017 -12.63 0.0004
2026-02-13 2025-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 28,412 -11,061 -28.02 1,165 -24.81 0.0005
2025-11-10 2025-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 39,473 -53,714 -57.64 1,549 -53.30 0.0007
2025-08-11 2025-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 93,187 -50,096 -34.96 3,316 -40.27 0.0016
2025-05-12 2025-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 143,283 -1 -0.00 5,551 13.57 0.0028
2025-02-12 2024-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 143,284 5,841 4.25 4,887 52.96 0.0029
2024-11-12 2024-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 137,443 59,048 75.32 3,196 96.62 0.0019
2024-08-12 2024-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 78,395 2,151 2.82 1,625 33.09 0.0010
2024-05-10 2024-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 76,244 -4,220 -5.24 1,221 -17.28 0.0008
2024-02-09 2023-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 80,464 26,397 48.82 1,477 49.24 0.0010
2023-12-06 2023-09-30 13F/A-1 TELEPHONE & DATA SYS COM NEW 879433829 54,067 -39,758 -42.37 990 28.11 0.0007
2023-11-09 2023-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 54,067 -39,758 990 0.0003
2023-08-10 2023-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 93,825 28,369 43.34 772 12.37 0.0005
2023-05-11 2023-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 65,456 -19,724 -23.16 688 -23.07 0.0005
2023-02-09 2022-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 85,180 26,911 46.18 894 10.25 0.0007
2022-11-10 2022-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 58,269 5,157 9.71 810 -3.46 0.0006
2022-08-10 2022-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 53,112 -45,385 -46.08 839 -54.89 0.0006
2022-05-12 2022-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 98,497 5,396 5.80 1,860 -0.85 0.0011
2022-02-10 2021-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 93,101 65,976 243.23 1,876 255.30 0.0010
2021-11-10 2021-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 27,125 -6,408 -19.11 528 -30.53 0.0003
2021-08-10 2021-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 33,533 -8,660 -20.52 760 -21.57 0.0005
2021-05-13 2021-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 42,193 -16,629 -28.27 969 -11.26 0.0006
2021-02-11 2020-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 58,822 12,004 25.64 1,092 26.54 0.0006
2020-11-12 2020-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 46,818 -31,618 -40.31 863 -44.68 0.0006
2020-08-12 2020-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 78,436 9,442 13.69 1,560 34.83 0.0012
2020-05-12 2020-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 68,994 8,271 13.62 1,157 -25.06 0.0010
2020-02-12 2019-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 60,723 -35,702 -37.03 1,544 -37.94 0.0011
2019-11-08 2019-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 96,425 -40,212 -29.43 2,488 -40.11 0.0020
2019-08-12 2019-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 136,637 59,321 76.73 4,154 74.83 0.0034
2019-05-13 2019-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 77,316 4,483 6.16 2,376 0.25 0.0023
2019-02-12 2018-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 72,833 28,810 65.44 2,370 77.00 0.0024
2018-11-13 2018-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 44,023 16,470 59.78 1,339 77.35 0.0012
2018-08-10 2018-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 27,553 12,559 83.76 755 79.76 0.0007
2018-05-11 2018-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 14,994 -7,693 -33.91 420 -33.44 0.0003
2018-02-12 2017-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 22,687 5,545 32.35 631 32.01 0.0005
2017-11-13 2017-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 17,142 15,214 789.11 478 801.89 0.0004
2017-08-11 2017-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 1,928 -30,760 -94.10 53 -93.89 0.0000
2017-05-12 2017-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 32,688 5,111 18.53 867 8.92 0.0008
2017-02-10 2016-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 27,577 -28,999 -51.26 796 -48.24 0.0007
2016-11-10 2016-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 56,576 -15,988 -22.03 1,538 -28.53 0.0014
2016-08-12 2016-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 72,564 39,763 121.22 2,152 118.26 0.0022
2016-05-13 2016-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 32,801 -16,941 -34.06 986 -23.45 0.0011
2016-02-12 2015-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 49,742 -37,010 -42.66 1,288 -40.51 0.0013
2015-11-13 2015-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 86,752 5,908 7.31 2,165 -8.88 0.0020
2015-08-13 2015-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 80,844 -25,813 -24.20 2,376 -10.54 0.0021
2015-05-14 2015-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 106,657 12,989 13.87 2,656 12.35 0.0026
2015-02-17 2014-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 93,668 14,925 18.95 2,364 25.28 0.0021
2014-11-14 2014-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 78,743 15,219 23.96 1,887 13.74 0.0016
2014-08-14 2014-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 63,524 44,186 228.49 1,659 227.22 0.0016
2014-05-15 2014-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 19,338 -36,427 -65.32 507 -64.74 0.0005
2014-02-14 2013-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 55,765 -221,810 -79.91 1,438 -82.47 0.0013
2013-11-14 2013-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 277,575 254,451 1,100.38 8,202 1,338.95 0.0077
2013-08-14 2013-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 23,124 23,124 570 0.0006
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.