AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionHerold Advisors, Inc.
Latest Disclosed Ownership101,670 shares
Latest Disclosed Value $ 2,947,400
Herold Advisors, Inc. reports 1.43% increase in ownership of T / AT&T Inc.

On May 14, 2026 - Herold Advisors, Inc. filed a 13F-HR form disclosing ownership of 101,670 shares of AT&T Inc. (MX:T) valued at $2,947,400 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 100,233 shares of AT&T Inc.. This represents a change in shares of 1.43% 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)
2026-05-14 2026-03-31 13F AT&T COM 00206R102 101,670 1,437 1.43 2,947 18.40 0.6473
2026-02-17 2025-12-31 13F AT&T COM 00206R102 100,233 1,041 1.05 2,490 -11.14 0.5564
2025-11-13 2025-09-30 13F AT&T COM 00206R102 99,192 -14,541 -12.79 2,801 -14.89 0.6492
2025-08-14 2025-06-30 13F AT&T COM 00206R102 113,733 28,170 32.92 3,291 35.99 0.6900
2025-05-13 2025-03-31 13F AT&T COM 00206R102 85,563 -1,672 -1.92 2,420 21.85 0.5314
2025-02-14 2024-12-31 13F AT&T COM 00206R102 87,235 4,270 5.15 1,987 8.82 0.4329
2024-11-14 2024-09-30 13F AT&T COM 00206R102 82,965 6,700 8.79 1,825 25.26 0.3964
2024-07-24 2024-06-30 13F AT&T COM 00206R102 76,265 2,340 3.17 1,458 11.99 0.3371
2024-05-10 2024-03-31 13F AT&T COM 00206R102 73,925 4,435 6.38 1,301 11.58 0.3148
2024-02-02 2023-12-31 13F AT&T COM 00206R102 69,490 3,880 5.91 1,166 18.38 0.3226
2023-11-08 2023-09-30 13F AT&T COM 00206R102 65,610 4,333 7.07 985 0.82 0.2998
2023-07-17 2023-06-30 13F AT&T COM 00206R102 61,277 -4,474 -6.80 977 -22.77 0.2992
2023-04-19 2023-03-31 13F AT&T COM 00206R102 65,751 2,537 4.01 1,266 8.77 0.4375
2023-02-14 2022-12-31 13F AT&T COM 00206R102 63,214 3,555 5.96 1,164 27.10 0.4928
2022-11-08 2022-09-30 13F AT&T INC COM COM 00206R102 59,659 214 0.36 915 -26.51 0.4399
2022-07-15 2022-06-30 13F AT&T INC COM COM 00206R102 59,445 -7,893 -11.72 1,245 -99.92 0.5549
2022-05-09 2022-03-31 13F AT&T INC COM COM 00206R102 67,338 3 0.00 1,591,201 95,987.02 0.5659
2022-01-20 2021-12-31 13F AT&T INC COM COM 00206R102 67,335 1,069 1.61 1,656 -7.43 0.6432
2021-11-03 2021-09-30 13F AT&T INC COM COM 00206R102 66,266 66,266 1,789 0.6961
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.