AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionQuadrature Capital Ltd
Latest Disclosed Ownership1,202,818 shares
Latest Disclosed Value $ 34,869,694
Quadrature Capital Ltd ownership in T / AT&T Inc.

On May 15, 2026 - Quadrature Capital Ltd filed a 13F-HR form disclosing ownership of 1,202,818 shares of AT&T Inc. (MX:T) valued at $34,869,694 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2025 disclosing 0 shares of AT&T Inc..

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)
2026-05-15 2026-03-31 13F AT&T COM 00206R102 1,202,818 1,202,818 34,870 0.4149
2025-02-13 2024-12-31 13F AT&T COM 00206R102 0 -496,493 -100.00 0 -100.00
2024-11-14 2024-09-30 13F AT&T COM 00206R102 496,493 466,616 1,561.79 10,915 1,811.56 0.2475
2024-08-14 2024-06-30 13F AT&T COM 00206R102 29,877 -454,380 -93.83 571 -92.98 0.0096
2024-02-13 2023-12-31 13F AT&T COM 00206R102 484,257 -230,253 -32.23 8,136 -24.22 0.1524
2023-11-14 2023-09-30 13F AT&T COM 00206R102 714,510 164,919 30.01 10,736 22.59 0.2273
2023-08-14 2023-06-30 13F AT&T COM 00206R102 549,591 549,591 8,758 0.2010
2024-03-25 2023-03-31 13F/A-1 AT&T COM 00206R102 0 -127,194 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AT&T COM 00206R102 0 -127,194 0
2023-02-14 2022-12-31 13F AT&T COM 00206R102 127,194 127,194 2,340 0.0726
2022-11-14 2022-09-30 13F AT&T COM 00206R102 0 -249,536 -100.00 0 -100.00
2022-08-15 2022-06-30 13F AT&T COM 00206R102 249,536 241,597 3,043.17 5,235 1,860.67 0.2242
2018-11-13 2018-09-30 13F AT&T COM 00206R102 7,939 7,939 267 0.0226
2017-11-13 2017-09-30 13F AT&T COM 00206R102 0 -162,032 -100.00 0 -100.00
2017-08-14 2017-06-30 13F AT&T COM 00206R102 162,032 88,087 119.13 6,115 98.99 0.4712
2017-05-12 2017-03-31 13F AT&T COM 00206R102 73,945 -48,826 -39.77 3,073 -41.15 0.2219
2017-04-11 2016-12-31 13F/A-3 AT&T COM 00206R102 122,771 -183,311 -59.89 5,222 -57.98 0.3316
2017-03-27 2016-12-31 13F/A-2 AT&T COM 00206R102 122,771 -183,311 5,222 330,586.4649
2017-03-24 2016-12-31 13F/A-1 AT&T COM 00206R102 122,771 0 5,222 331,574.5027
2017-02-13 2016-12-31 13F AT&T COM 00206R102 70,882 387
2016-11-10 2016-09-30 13F AT&T COM 00206R102 306,082 306,082 12,427 1.0844
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.