AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionBirchbrook, Inc.
Latest Disclosed Ownership3,943 shares
Latest Disclosed Value $ 114,308
Birchbrook, Inc. reports 4.09% decrease in ownership of T / AT&T Inc.

On April 8, 2026 - Birchbrook, Inc. filed a 13F-HR form disclosing ownership of 3,943 shares of AT&T Inc. (MX:T) valued at $114,308 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 4,111 shares of AT&T Inc.. This represents a change in shares of -4.09% 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)
2026-04-08 2026-03-31 13F AT&T COM 00206R102 3,943 -168 -4.09 114 11.76 0.0560
2026-02-04 2025-12-31 13F AT&T COM 00206R102 4,111 168 4.26 102 -8.11 0.0509
2025-11-03 2025-09-30 13F AT&T COM 00206R102 3,943 -172 -4.18 111 -6.72 0.0576
2025-08-11 2025-06-30 13F AT&T COM 00206R102 4,115 172 4.36 119 7.21 0.0638
2025-06-10 2025-03-31 13F AT&T COM 00206R102 3,943 -26 -0.66 112 23.33 0.0627
2025-06-10 2024-12-31 13F AT&T COM 00206R102 3,969 200 5.31 90 9.76 0.0514
2025-06-10 2024-09-30 13F AT&T COM 00206R102 3,769 0 0.00 83 13.89 0.0460
2025-06-10 2024-06-30 13F AT&T COM 00206R102 3,769 0 0.00 72 9.09 0.0432
2025-06-10 2024-03-31 13F AT&T COM 00206R102 3,769 0 0.00 66 4.76 0.0394
2025-06-10 2023-12-31 13F AT&T COM 00206R102 3,769 3,769 63 0.0417
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.