AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionCSM Advisors, LLC
Latest Disclosed Ownership58,135 shares
Latest Disclosed Value $ 1,685
CSM Advisors, LLC reports 14.93% increase in ownership of T / AT&T Inc.

On May 15, 2026 - CSM Advisors, LLC filed a 13F-HR form disclosing ownership of 58,135 shares of AT&T Inc. (MX:T) valued at $1,685 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 50,585 shares of AT&T Inc.. This represents a change in shares of 14.93% 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)
2026-05-15 2026-03-31 13F AT&T COMMON 00206R102 58,135 7,550 14.93 2 0.00 0.0414
2026-02-11 2025-12-31 13F AT&T COMMON 00206R102 50,585 -63,459 -55.64 1 -66.67 0.0341
2025-11-14 2025-09-30 13F AT&T COMMON 00206R102 114,044 -220,763 -65.94 3 -66.67 0.0900
2025-08-07 2025-06-30 13F AT&T COMMON 00206R102 334,807 -8,042 -2.35 10 0.00 0.2826
2025-05-14 2025-03-31 13F AT&T COMMON 00206R102 342,849 -16,390 -4.56 10 12.50 0.5289
2025-02-14 2024-12-31 13F/A-1 AT&T COMMON 00206R102 359,239 -21,449 -5.63 8 0.00 0.3827
2025-02-14 2024-12-31 13F AT&T COMMON 00206R102 359,239 -21,449 8 0.5422
2024-11-14 2024-09-30 13F AT&T COMMON 00206R102 380,688 -600 -0.16 8 14.29 0.5457
2024-08-14 2024-06-30 13F AT&T COMMON 00206R102 381,288 23,790 6.65 7 16.67 0.5138
2024-05-15 2024-03-31 13F AT&T COMMON 00206R102 357,498 3,520 0.99 6 20.00 0.4128
2024-02-14 2023-12-31 13F AT&T COMMON 00206R102 353,978 -988 -0.28 6 0.00 0.4280
2023-11-13 2023-09-30 13F AT&T COMMON 00206R102 354,966 0 0.00 5 0.00 0.4641
2023-08-14 2023-06-30 13F AT&T COMMON 00206R102 354,966 -2,820 -0.79 6 -16.67 0.4276
2023-05-15 2023-03-31 13F AT&T COMMON 00206R102 357,786 25,100 7.54 7 0.00 0.5945
2023-02-14 2022-12-31 13F AT&T COMMON 00206R102 332,686 -318 -0.10 6 -99.88 0.5834
2022-11-14 2022-09-30 13F AT&T COMMON 00206R102 333,004 -36,947 -9.99 5,108 -34.11 0.5583
2022-08-11 2022-06-30 13F AT&T COMMON 00206R102 369,951 -200 -0.05 7,752 -11.41 0.7083
2022-05-16 2022-03-31 13F AT&T COMMON 00206R102 370,151 -119,526 -24.41 8,750 -27.36 0.5989
2022-02-09 2021-12-31 13F AT&T COMMON 00206R102 489,677 760 0.16 12,046 -8.78 0.7971
2021-11-15 2021-09-30 13F AT&T COMMON 00206R102 488,917 2,700 0.56 13,205 -5.62 0.9749
2021-08-16 2021-06-30 13F AT&T COMMON 00206R102 486,217 -1,856 -0.38 13,992 -5.29 0.9242
2021-05-21 2021-03-31 13F AT&T COMMON 00206R102 488,073 488,073 14,774 2.0780
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.