AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionAlbert D Mason Inc
Latest Disclosed Ownership35,792 shares
Latest Disclosed Value $ 1,037,610
Albert D Mason Inc reports 1.53% decrease in ownership of T / AT&T Inc.

On April 15, 2026 - Albert D Mason Inc filed a 13F-HR form disclosing ownership of 35,792 shares of AT&T Inc. (MX:T) valued at $1,037,610 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 36,348 shares of AT&T Inc.. This represents a change in shares of -1.53% 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)
2026-04-15 2026-03-31 13F AT&T COM 00206R102 35,792 -556 -1.53 1,038 14.97 0.6717
2026-01-13 2025-12-31 13F AT&T COM 00206R102 36,348 0 0.00 903 -12.09 0.5942
2025-10-15 2025-09-30 13F AT&T COM 00206R102 36,348 0 0.00 1,026 -2.38 0.6684
2025-07-29 2025-06-30 13F AT&T COM 00206R102 36,348 -365 -0.99 1,052 1.25 0.7613
2025-04-16 2025-03-31 13F AT&T COM 00206R102 36,713 1,229 3.46 1,038 28.62 0.7058
2025-01-15 2024-12-31 13F AT&T COM 00206R102 35,484 1,747 5.18 808 8.76 0.5399
2024-10-22 2024-09-30 13F AT&T COM 00206R102 33,737 81 0.24 742 15.40 0.4754
2024-07-16 2024-06-30 13F AT&T COM 00206R102 33,656 -893 -2.58 643 0.4347
2024-04-24 2024-03-31 13F AT&T COM 00206R102 34,549 84 0.24 1 0.3759
2024-01-03 2023-12-31 13F AT&T COM 00206R102 34,465 295 0.86 1 0.3828
2023-10-10 2023-09-30 13F AT&T COM 00206R102 34,170 1,930 5.99 1 0.3712
2023-07-25 2023-06-30 13F AT&T COM 00206R102 32,240 4,601 16.65 1 0.3522
2023-04-11 2023-03-31 13F AT&T COM 00206R102 27,639 -355 -1.27 1 0.3689
2023-01-11 2022-12-31 13F AT&T COM 00206R102 27,994 520 1.89 1 -100.00 0.3675
2022-10-12 2022-09-30 13F AT&T COM 00206R102 27,474 410 1.51 421 -25.75 0.3374
2022-07-12 2022-06-30 13F AT&T COM 00206R102 27,064 -1,426 -5.01 567 -15.75 0.4215
2022-04-20 2022-03-31 13F AT&T COM 00206R102 28,490 -420 -1.45 673 -5.34 0.4329
2022-01-25 2021-12-31 13F AT&T COM 00206R102 28,910 4,773 19.77 711 9.05 0.4238
2021-10-13 2021-09-30 13F AT&T COM 00206R102 24,137 -27,755 -53.49 652 -56.33 0.4200
2021-07-14 2021-06-30 13F AT&T COM 00206R102 51,892 145 0.28 1,493 -4.66 0.9162
2021-04-14 2021-03-31 13F AT&T COM 00206R102 51,747 824 1.62 1,566 6.89 1.0225
2021-01-12 2020-12-31 13F AT&T COM 00206R102 50,923 2,462 5.08 1,465 6.01 1.0185
2020-10-20 2020-09-30 13F AT&T COM 00206R102 48,461 1,605 3.43 1,382 -2.40 1.1327
2020-07-21 2020-06-30 13F AT&T COM 00206R102 46,856 5,775 14.06 1,416 18.20 1.1931
2020-04-15 2020-03-31 13F AT&T COM 00206R102 41,081 1,135 2.84 1,198 -23.25 1.2062
2020-01-21 2019-12-31 13F AT&T COM 00206R102 39,946 1,910 5.02 1,561 8.48 1.1027
2019-10-23 2019-09-30 13F AT&T COM 00206R102 38,036 30,335 393.91 1,439 457.75 1.0769
2019-07-30 2019-06-30 13F AT&T COM 00206R102 7,701 1,082 16.35 258 24.04 0.1936
2019-04-30 2019-03-31 13F AT&T COM 00206R102 6,619 6,619 208 0.1523
2018-07-31 2018-06-30 13F AT&T COM 00206R102 0 -6,804 -100.00 0 -100.00
2018-05-02 2018-03-31 13F AT&T COM 00206R102 6,804 6,804 243 0.1828
2015-07-22 2015-06-30 13F AT&T COM 00206R102 0 -136,829 -100.00 0 -100.00
2015-05-06 2015-03-31 13F AT&T COM 00206R102 136,829 50,039 57.66 4,467 53.24 0.9292
2015-02-18 2014-12-31 13F/A-1 AT&T COM 00206R102 71,200 -12,200 2,392 0.5328
2015-02-26 2014-12-31 13F/A-2 AT&T COM 00206R102 86,790 3,390 4.06 2,915 -0.82 0.5815
2015-02-11 2014-12-31 13F AT&T COM 00206R102 16,200 544
2015-02-26 2014-09-30 13F/A-1 AT&T COM 00206R102 83,400 700 0.85 2,939 0.51 0.5771
2014-10-14 2014-09-30 13F AT&T COM 00206R102 16,200 571
2015-02-25 2014-06-30 13F/A-1 AT&T COM 00206R102 82,700 12,820 18.35 2,924 19.30 0.5320
2014-07-30 2014-06-30 13F AT&T COM 00206R102 16,200 573
2014-04-22 2014-03-31 13F AT&T COM 00206R102 69,880 300 0.43 2,451 0.20 0.4790
2014-01-21 2013-12-31 13F AT&T COM 00206R102 69,580 23,940 52.45 2,446 58.42 0.4814
2013-10-29 2013-09-30 13F AT&T COM 00206R102 45,640 45,640 1,544 0.3237
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.