AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionGrandfield & Dodd, Llc
Latest Disclosed Ownership9,063 shares
Latest Disclosed Value $ 262,760
Grandfield & Dodd, Llc ownership in T / AT&T Inc.

On May 7, 2026 - Grandfield & Dodd, Llc filed a 13F-HR form disclosing ownership of 9,063 shares of AT&T Inc. (MX:T) valued at $262,760 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 9,063 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)
2026-05-07 2026-03-31 13F AT&T COM 00206R102 9,063 0 0.00 263 16.44 0.0148
2026-02-10 2025-12-31 13F AT&T COM 00206R102 9,063 -5 -0.06 225 -12.11 0.0128
2025-10-30 2025-09-30 13F AT&T COM 00206R102 9,068 0 0.00 256 -2.29 0.0145
2025-08-08 2025-06-30 13F AT&T COM 00206R102 9,068 0 0.00 262 2.34 0.0154
2025-05-02 2025-03-31 13F AT&T COM 00206R102 9,068 0 0.00 256 24.27 0.0159
2025-02-06 2024-12-31 13F AT&T COM 00206R102 9,068 9,068 206 0.0127
2024-11-08 2024-09-30 13F AT&T COM 00206R102 0 -11,667 -100.00 0 -100.00
2024-08-09 2024-06-30 13F AT&T COM 00206R102 11,667 -58 -0.49 223 7.77 0.0141
2024-05-06 2024-03-31 13F AT&T COM 00206R102 11,725 81 0.70 206 5.64 0.0130
2024-01-31 2023-12-31 13F AT&T COM 00206R102 11,644 1,164 11.11 195 24.20 0.0135
2023-10-26 2023-09-30 13F AT&T COM 00206R102 10,480 0 0.00 157 -5.99 0.0116
2023-08-08 2023-06-30 13F AT&T COM 00206R102 10,480 -7,711 -42.39 167 -52.29 0.0117
2023-04-28 2023-03-31 13F AT&T COM 00206R102 18,191 0 0.00 350 4.79 0.0245
2023-01-20 2022-12-31 13F AT&T COM 00206R102 18,191 1,262 7.45 335 28.46 0.0245
2022-11-04 2022-09-30 13F AT&T COM 00206R102 16,929 -4,294 -20.23 260 -40.91 0.0212
2022-08-01 2022-06-30 13F AT&T COM 00206R102 21,223 -431 -1.99 440 -13.73 0.0347
2022-04-19 2022-03-31 13F AT&T COM 00206R102 21,654 -3,692 -14.57 510 -17.74 0.0346
2022-02-08 2021-12-31 13F AT&T COM 00206R102 25,346 -1,000 -3.80 620 -12.68 0.0399
2021-10-28 2021-09-30 13F AT&T COM 00206R102 26,346 -1,231 -4.46 710 -10.13 0.0496
2021-07-28 2021-06-30 13F AT&T COM 00206R102 27,577 -792 -2.79 790 -8.14 0.0547
2021-04-22 2021-03-31 13F AT&T COM 00206R102 28,369 507 1.82 860 7.50 0.0643
2021-01-29 2020-12-31 13F AT&T COM 00206R102 27,862 -350 -1.24 800 0.00 0.0628
2020-11-03 2020-09-30 13F AT&T COM 00206R102 28,212 -268 -0.94 800 -6.98 0.0721
2020-07-24 2020-06-30 13F AT&T COM 00206R102 28,480 -3,404 -10.68 860 -7.43 0.0832
2020-05-14 2020-03-31 13F AT&T COM 00206R102 31,884 993 3.21 929 -23.03 0.1095
2020-02-07 2019-12-31 13F AT&T COM 00206R102 30,891 -3,418 -9.96 1,207 -7.01 0.1100
2019-10-30 2019-09-30 13F AT&T COM 00206R102 34,309 -719 -2.05 1,298 10.56 0.1277
2019-07-29 2019-06-30 13F AT&T COM 00206R102 35,028 -1,995 -5.39 1,174 1.12 0.1160
2019-04-26 2019-03-31 13F AT&T COM 00206R102 37,023 -1,923 -4.94 1,161 4.41 0.1209
2019-02-12 2018-12-31 13F AT&T COM 00206R102 38,946 -70,704 -64.48 1,112 -69.80 0.1316
2018-11-02 2018-09-30 13F AT&T COM 00206R102 109,650 -77,452 -41.40 3,682 -38.72 0.3794
2018-07-27 2018-06-30 13F AT&T COM 00206R102 187,102 172,957 1,222.74 6,008 1,092.06 0.6601
2018-05-04 2018-03-31 13F/A-1 AT&T COM 00206R102 14,145 -1,286 -8.33 504 -16.00 0.0562
2018-05-04 2018-03-31 13F AT&T COM 00206R102 14,145 -1,286 504
2018-02-05 2017-12-31 13F AT&T COM 00206R102 15,431 -492 -3.09 600 -3.85 0.0640
2017-11-03 2017-09-30 13F AT&T COM 00206R102 15,923 -2,385 -13.03 624 -9.70 0.0701
2017-07-27 2017-06-30 13F AT&T COM 00206R102 18,308 -551 -2.92 691 -11.86 0.0817
2017-04-28 2017-03-31 13F AT&T COM 00206R102 18,859 -200 -1.05 784 -3.33 0.0968
2017-02-02 2016-12-31 13F AT&T COM 00206R102 19,059 -2,322 -10.86 811 -6.57 0.1051
2016-10-24 2016-09-30 13F AT&T COM 00206R102 21,381 1,494 7.51 868 1.05 0.1140
2016-07-28 2016-06-30 13F AT&T COM 00206R102 19,887 -236 -1.17 859 9.01 0.1202
2016-05-06 2016-03-31 13F AT&T COM 00206R102 20,123 200 1.00 788 14.87 0.1140
2016-02-03 2015-12-31 13F AT&T COM 00206R102 19,923 -2,195 -9.92 686 -4.85 0.1043
2015-11-02 2015-09-30 13F AT&T COM 00206R102 22,118 1,402 6.77 721 -2.04 0.1209
2015-08-03 2015-06-30 13F AT&T COM 00206R102 20,716 848 4.27 736 13.41 0.1126
2015-05-15 2015-03-31 13F AT&T COM 00206R102 19,868 663 3.45 649 0.62 0.0992
2015-02-05 2014-12-31 13F AT&T COM 00206R102 19,205 5,973 45.14 645 38.41 0.0997
2014-11-10 2014-09-30 13F AT&T COM 00206R102 13,232 -2,354 -15.10 466 -15.43 0.0732
2014-08-14 2014-06-30 13F AT&T COM 00206R102 15,586 -1,403 -8.26 551 -7.55 0.0831
2014-05-06 2014-03-31 13F AT&T COM 00206R102 16,989 -625 -3.55 596 -3.72 0.0936
2014-02-06 2013-12-31 13F AT&T COM 00206R102 17,614 -723 -3.94 619 -0.16 0.1006
2013-11-04 2013-09-30 13F AT&T COM 00206R102 18,337 601 3.39 620 -1.27 0.1106
2013-08-01 2013-06-30 13F AT&T COM 00206R102 17,736 17,736 628 0.1189
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.