AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership301,242 shares
Latest Disclosed Value $ 8,732,992
Summit Trail Advisors, Llc reports 22.99% increase in ownership of T / AT&T Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 301,242 shares of AT&T Inc. (MX:T) valued at $8,732,992 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 244,929 shares of AT&T Inc.. This represents a change in shares of 22.99% 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)
2026-05-12 2026-03-31 13F AT&T COM 00206R102 301,242 56,313 22.99 8,733 43.52 0.1251
2026-02-17 2025-12-31 13F AT&T COM 00206R102 244,929 -57,725 -19.07 6,084 -28.81 0.1052
2025-11-14 2025-09-30 13F AT&T COM 00206R102 302,654 24,570 8.84 8,547 6.20 0.1180
2025-08-14 2025-06-30 13F AT&T COM 00206R102 278,084 49,353 21.58 8,048 24.41 0.1381
2025-04-28 2025-03-31 13F AT&T COM 00206R102 228,731 32,671 16.66 6,469 44.89 0.2134
2025-01-29 2024-12-31 13F AT&T COM 00206R102 196,060 26,126 15.37 4,464 19.42 0.1647
2024-11-12 2024-09-30 13F AT&T COM 00206R102 169,934 6,231 3.81 3,739 19.50 0.0927
2024-08-13 2024-06-30 13F AT&T Inc Com COM 00206R102 163,703 45,525 38.52 3,128 50.46 0.0822
2024-04-23 2024-03-31 13F AT&T COM 00206R102 118,178 60,077 103.40 2,080 113.45 0.0553
2024-02-06 2023-12-31 13F AT&T COM 00206R102 58,101 986 1.73 975 13.65 0.0323
2023-10-30 2023-09-30 13F AT&T COM 00206R102 57,115 20,945 57.91 858 48.78 0.0316
2023-07-25 2023-06-30 13F AT&T COM 00206R102 36,170 -4,323 -10.68 577 -26.06 0.0218
2023-05-04 2023-03-31 13F AT&T COM 00206R102 40,493 22,988 131.32 779 141.93 0.0314
2023-02-07 2022-12-31 13F AT&T Inc Com COM 00206R102 17,505 2,914 19.97 322 43.75 0.0143
2022-11-10 2022-09-30 13F AT&T Inc Com Stock 00206R102 14,591 -5,871 -28.69 224 -47.79 0.0121
2022-08-09 2022-06-30 13F AT&T Inc Com COM 00206R102 20,462 5,473 36.51 429 21.19 0.0265
2022-05-16 2022-03-31 13F AT&T Inc Com EQUITY 00206R102 14,989 -2,299 -13.30 354 -16.71 0.0286
2022-02-11 2021-12-31 13F AT&T Inc Com Equity 00206R102 17,288 673 4.05 425 -5.35 0.0274
2021-11-16 2021-09-30 13F AT&T Inc Com COM 00206R102 16,615 4,332 35.27 449 26.84 0.0337
2021-08-16 2021-06-30 13F AT&T Inc Com Equity 00206R102 12,283 -2,334 -15.97 354 -19.91 0.0310
2021-05-17 2021-03-31 13F AT&T Equity 00206R102 14,617 -454 -3.01 442 2.08 0.0477
2021-02-16 2020-12-31 13F AT&T Equity 00206R102 15,071 -2,104 -12.25 433 -11.27 0.0546
2020-11-16 2020-09-30 13F/A-1 AT&T Inc Com Equity 00206R102 17,175 4,666 37.30 488 29.10 0.0944
2020-11-16 2020-09-30 13F Nuveen Enhanced Amt Equity 00206R102 109,957 1,762
2020-08-13 2020-06-30 13F AT&T Inc Com Equity 00206R102 12,509 -4,793 -27.70 378 -25.00 0.0705
2020-05-15 2020-03-31 13F AT&T Inc Com Equity 00206R102 17,302 3,134 22.12 504 -9.03 0.1356
2020-02-13 2019-12-31 13F Atkore Intl Group Inc Com Equity 00206R102 14,168 -2,825 -16.62 554 -13.84 0.3212
2019-11-14 2019-09-30 13F AT&T Inc Com Equity 00206R102 16,993 4,321 34.10 643 51.29 0.2286
2019-08-08 2019-06-30 13F AT&T INC COM EQUITY 00206R102 12,672 1,585 14.30 425 22.13 0.1858
2019-05-16 2019-03-31 13F AT&T INC COM EQUITY 00206R102 11,087 -2,446 -18.07 348 -9.84 0.1506
2019-02-13 2018-12-31 13F AT&T INC COM EQUITY 00206R102 13,533 -7,328 -35.13 386 -44.94 0.1365
2018-11-14 2018-09-30 13F AT&T INC COM EQUITY 00206R102 20,861 7,003 50.53 701 57.53 0.1547
2018-08-10 2018-06-30 13F AT&T Inc Com EQUITY 00206R102 13,858 -36,026 -72.22 445 -55.68 0.1556
2018-05-22 2018-03-31 13F/A-1 AT&T INC COM EQUITY 00206R102 49,884 3,290 7.06 1,004 -42.56 0.1704
2018-05-21 2018-03-31 13F AT&T INC COM EQUITY 00206R102 1,004,122 957,528 1,004
2018-02-14 2017-12-31 13F AT&T INC COM USD1 EQUITY 00206R102 46,594 46,594 1,748 0.2207
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.