AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionMattern Wealth Management LLC
Latest Disclosed Ownership30,099 shares
Latest Disclosed Value $ 872,570
Mattern Wealth Management LLC ownership in T / AT&T Inc.

On April 23, 2026 - Mattern Wealth Management LLC filed a 13F-HR form disclosing ownership of 30,099 shares of AT&T Inc. (MX:T) valued at $872,570 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 30,099 shares of AT&T Inc.. This represents a change in shares of 0.00% 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)
2026-04-23 2026-03-31 13F AT&T COM 00206R102 30,099 0 0.00 873 16.73 0.1701
2026-01-16 2025-12-31 13F AT&T COM 00206R102 30,099 0 0.00 748 -12.01 0.1439
2025-10-20 2025-09-30 13F AT&T COM 00206R102 30,099 0 0.00 850 -2.53 0.1697
2025-07-17 2025-06-30 13F AT&T COM 00206R102 30,099 506 1.71 871 4.19 0.1813
2025-04-23 2025-03-31 13F AT&T COM 00206R102 29,593 3,472 13.29 837 40.74 0.1851
2025-01-22 2024-12-31 13F AT&T COM 00206R102 26,121 -1,630 -5.87 595 -2.62 0.1312
2024-10-21 2024-09-30 13F AT&T COM 00206R102 27,751 -1,173 -4.06 611 10.51 0.1342
2024-07-17 2024-06-30 13F AT&T COM 00206R102 28,924 729 2.59 553 11.29 0.1329
2024-05-14 2024-03-31 13F AT&T COM 00206R102 28,195 28 0.10 496 5.08 0.1207
2024-02-12 2023-12-31 13F AT&T COM 00206R102 28,167 31 0.11 473 11.85 0.1215
2023-11-01 2023-09-30 13F AT&T COM 00206R102 28,136 -8,937 -24.11 423 -28.60 0.1239
2023-07-26 2023-06-30 13F AT&T COM 00206R102 37,073 -735 -1.94 591 -18.71 0.1725
2023-05-05 2023-03-31 13F AT&T COM 00206R102 37,808 -394 -1.03 728 3.41 0.2410
2023-02-06 2022-12-31 13F AT&T COM 00206R102 38,202 -3,776 -9.00 703 9.16 0.2844
2022-11-01 2022-09-30 13F AT&T COM 00206R102 41,978 924 2.25 644 -25.12 0.2588
2022-07-25 2022-06-30 13F AT&T COM 00206R102 41,054 14,301 53.46 860 36.08 0.3366
2022-04-14 2022-03-31 13F AT&T COM 00206R102 26,753 -2,377 -8.16 632 -11.85 0.2069
2022-01-27 2021-12-31 13F AT&T COM 00206R102 29,130 -1,124 -3.72 717 -12.24 0.2106
2021-10-13 2021-09-30 13F AT&T COM 00206R102 30,254 -3,349 -9.97 817 -14.18 0.2747
2021-07-27 2021-06-30 13F AT&T COM 00206R102 33,603 -186 -0.55 952 -6.94 0.3034
2021-05-13 2021-03-31 13F AT&T COM 00206R102 33,789 -25,438 -42.95 1,023 -39.93 0.3605
2021-02-12 2020-12-31 13F AT&T COM 00206R102 59,227 -10,527 -15.09 1,703 -14.38 0.6441
2020-11-12 2020-09-30 13F AT&T COM 00206R102 69,754 -1,783 -2.49 1,989 -8.04 0.8516
2020-07-29 2020-06-30 13F AT&T COM 00206R102 71,537 -4,063 -5.37 2,163 -1.86 1.0509
2020-05-13 2020-03-31 13F AT&T COM 00206R102 75,600 12,539 19.88 2,204 -10.55 1.5891
2020-02-12 2019-12-31 13F AT&T COM 00206R102 63,061 63,061 2,464 1.4790
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.