AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership284,548 shares
Latest Disclosed Value $ 8,249,047
Brown Advisory Inc reports 5.44% increase in ownership of T / AT&T Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 284,548 shares of AT&T Inc. (MX:T) valued at $8,249,047 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 269,878 shares of AT&T Inc.. This represents a change in shares of 5.44% 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 COM 00206R102 284,548 14,670 5.44 8,249 23.06 0.0060
2026-02-13 2025-12-31 13F AT&T COM 00206R102 269,878 -22,859 -7.81 6,704 -18.91 0.0094
2025-11-14 2025-09-30 13F AT&T COM 00206R102 292,737 18,061 6.58 8,267 3.99 0.0108
2025-08-13 2025-06-30 13F AT&T COM 00206R102 274,676 6,875 2.57 7,949 4.97 0.0105
2025-04-30 2025-03-31 13F AT&T COM 00206R102 267,801 -6,816 -2.48 7,573 21.11 0.0108
2025-02-14 2024-12-31 13F AT&T COM 00206R102 274,617 13,031 4.98 6,253 8.67 0.0079
2024-11-13 2024-09-30 13F AT&T COM 00206R102 261,586 -72 -0.03 5,755 15.08 0.0072
2024-08-14 2024-06-30 13F AT&T COM 00206R102 261,658 14,572 5.90 5,000 15.00 0.0065
2024-04-24 2024-03-31 13F AT&T COM 00206R102 247,086 4,762 1.97 4,349 6.94 0.0058
2024-02-08 2023-12-31 13F AT&T COM 00206R102 242,324 17,601 7.83 4,066 20.47 0.0057
2023-10-25 2023-09-30 13F AT&T COM 00206R102 224,723 -35,089 -13.51 3,375 -18.56 0.0055
2023-07-31 2023-06-30 13F AT&T COM 00206R102 259,812 -8,550 -3.19 4,144 -19.77 0.0065
2023-05-08 2023-03-31 13F AT&T COM 00206R102 268,362 -3,677 -1.35 5,166 3.13 0.0087
2023-02-13 2022-12-31 13F AT&T COM 00206R102 272,039 1,927 0.71 5,008 20.88 0.0093
2022-11-14 2022-09-30 13F AT&T COM 00206R102 270,112 29,614 12.31 4,143 -17.80 0.0081
2022-11-14 2022-06-30 13F/A-2 AT&T COM 00206R102 240,498 20,116 9.13 5,040 -3.21 0.0095
2022-09-13 2022-06-30 13F/A-1 AT&T COM 00206R102 245,278 23,957 5,141 0.0089
2022-08-02 2022-06-30 13F AT&T COM 00206R102 267,141 27,379 5,913 0.0095
2022-11-14 2022-03-31 13F/A-2 AT&T COM 00206R102 220,382 -16,692 -7.04 5,207 -10.70 0.0078
2022-09-13 2022-03-31 13F/A-1 AT&T COM 00206R102 221,321 -15,753 5,230 0.0073
2022-05-09 2022-03-31 13F AT&T COM 00206R102 239,762 2,688 5,749 0.0078
2022-01-27 2021-12-31 13F AT&T COM 00206R102 237,074 -43,690 -15.56 5,831 -23.11 0.0072
2021-11-12 2021-09-30 13F AT&T COM 00206R102 280,764 -3,660 -1.29 7,584 -7.35 0.0112
2021-07-29 2021-06-30 13F AT&T COM 00206R102 284,424 -22,643 -7.37 8,186 -11.93 0.0123
2021-05-14 2021-03-31 13F AT&T COM 00206R102 307,067 -38,399 -11.12 9,295 -6.46 0.0159
2021-02-12 2020-12-31 13F AT&T COM 00206R102 345,466 -29,177 -7.79 9,937 -6.96 0.0176
2020-11-16 2020-09-30 13F AT&T COM 00206R102 374,643 -7,720 -2.02 10,680 -7.60 0.0221
2020-08-14 2020-06-30 13F AT&T COM 00206R102 382,363 -40,192 -9.51 11,558 -6.15 0.0269
2020-05-15 2020-03-31 13F AT&T COM 00206R102 422,555 34,227 8.81 12,316 -18.85 0.0377
2020-02-14 2019-12-31 13F AT&T COM 00206R102 388,328 -2,207 -0.57 15,176 2.70 0.0385
2019-11-14 2019-09-30 13F AT&T COM 00206R102 390,535 2,212 0.57 14,777 13.57 0.0415
2019-08-12 2019-06-30 13F AT&T COM 00206R102 388,323 -27,656 -6.65 13,011 -0.26 0.0372
2019-05-15 2019-03-31 13F AT&T COM 00206R102 415,979 12,299 3.05 13,045 13.23 0.0370
2019-02-13 2018-12-31 13F AT&T COM 00206R102 403,680 -34,398 -7.85 11,521 -21.68 0.0387
2018-11-13 2018-09-30 13F AT&T COM 00206R102 438,078 16,983 4.03 14,710 8.79 0.0419
2018-08-10 2018-06-30 13F AT&T COM 00206R102 421,095 58,370 16.09 13,521 4.56 0.0416
2018-06-28 2018-03-31 13F/A-1 AT&T COM 00206R102 362,725 -71,338 -16.43 12,931 -23.38 0.0418
2018-05-14 2018-03-31 13F AT&T COM 00206R102 303,415 -130,648 10,817
2018-02-12 2017-12-31 13F AT&T COM 00206R102 434,063 6,290 1.47 16,876 0.72 0.0534
2017-11-13 2017-09-30 13F AT&T COM 00206R102 427,773 -1,958 -0.46 16,755 3.34 0.0556
2017-08-14 2017-06-30 13F AT&T COM 00206R102 429,731 4,227 0.99 16,214 -8.29 0.0496
2017-05-15 2017-03-31 13F AT&T COM 00206R102 425,504 -6,455 -1.49 17,680 -3.76 0.0603
2017-02-13 2016-12-31 13F AT&T COM 00206R102 431,959 -18,847 -4.18 18,370 0.35 0.0656
2016-11-14 2016-09-30 13F AT&T COM 00206R102 450,806 37,414 9.05 18,306 2.48 0.0629
2016-08-09 2016-06-30 13F AT&T COM 00206R102 413,392 16,455 4.15 17,863 14.89 0.0628
2016-05-13 2016-03-31 13F AT&T COM 00206R102 396,937 14,583 3.81 15,548 18.17 0.0537
2016-02-08 2015-12-31 13F AT&T COM 00206R102 382,354 5,835 1.55 13,157 7.26 0.0446
2015-11-13 2015-09-30 13F AT&T COM 00206R102 376,519 61,810 19.64 12,267 9.73 0.0438
2015-08-11 2015-06-30 13F AT&T COM 00206R102 314,709 5,548 1.79 11,179 10.75 0.0364
2015-05-14 2015-03-31 13F AT&T COM 00206R102 309,161 14,611 4.96 10,094 2.02 0.0321
2015-02-13 2014-12-31 13F/A-1 AT&T COM 00206R102 294,550 6,125 2.12 9,894 -2.66 0.0312
2015-02-09 2014-12-31 13F AT&T COM 00206R102 291,545 10,007
2014-11-10 2014-09-30 13F AT&T COM 00206R102 288,425 243 0.08 10,164 -0.25 0.0327
2014-08-08 2014-06-30 13F AT&T COM 00206R102 288,182 108 0.04 10,189 0.86 0.0320
2014-05-13 2014-03-31 13F AT&T COM 00206R102 288,074 5,123 1.81 10,102 1.55 0.0322
2014-02-11 2013-12-31 13F AT&T COM 00206R102 282,951 -6,579 -2.27 9,948 1.59 0.0323
2013-11-08 2013-09-30 13F AT&T COM 00206R102 289,530 -10,048 -3.35 9,792 -7.67 0.0350
2013-08-13 2013-06-30 13F AT&T COM 00206R102 299,578 299,578 10,605 0.0425
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.