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

SecurityTDS / Telephone and Data Systems, Inc.
InstitutionAmundi
Latest Disclosed Ownership21,996 shares
Latest Disclosed Value $ 926,032
Amundi reports 18.55% increase in ownership of TDS / Telephone and Data Systems, Inc.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 21,996 shares of Telephone and Data Systems, Inc. (US:TDS) valued at $926,032 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 18,554 shares of Telephone and Data Systems, Inc.. This represents a change in shares of 18.55% during the quarter. The current value of the position is $862,023 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)
2026-05-15 2026-03-31 13F TELEPHONE & DATA SYS COM NEW 879433829 21,996 3,442 18.55 926 21.84 0.0001
2026-02-17 2025-12-31 13F TELEPHONE & DATA SYS COM NEW 879433829 18,554 -7,945 -29.98 761 -26.43 0.0002
2025-11-14 2025-09-30 13F TELEPHONE & DATA SYS COM NEW 879433829 26,499 872 3.40 1,033 13.39 0.0003
2025-08-13 2025-06-30 13F TELEPHONE & DATA SYS COM NEW 879433829 25,627 -26,346 -50.69 911 -53.69 0.0003
2025-05-15 2025-03-31 13F TELEPHONE AND DATA SYSTEMS COM NEW 879433829 51,973 -8,947 -14.69 1,968 -3.39 0.0007
2025-02-07 2024-12-31 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 60,920 30,350 99.28 2,037 188.79 0.0007
2024-11-13 2024-09-30 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 30,570 214 0.70 705 14.45 0.0003
2024-08-14 2024-06-30 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 30,356 12,828 73.19 616 132.45 0.0002
2024-05-15 2024-03-31 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 17,528 -565 -3.12 266 -19.70 0.0001
2024-02-14 2023-12-31 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 18,093 -4,617 -20.33 331 -18.72 0.0001
2023-11-14 2023-09-30 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 22,710 2,278 11.15 406 133.33 0.0002
2023-08-14 2023-06-30 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 20,432 -87 -0.42 175 -21.97 0.0001
2023-05-15 2023-03-31 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 20,519 1,655 8.77 223 1.36 0.0001
2023-02-14 2022-12-31 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 18,864 9,724 106.39 220 67.94 0.0001
2022-11-14 2022-09-30 13F TELEPHONE & DATA SYSTEMS COM NEW 879433829 9,140 9,140 131 0.0001
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.