AT&T Inc.
MX ˙ BMV ˙ US00206R1023
SecurityMX:T / AT&T Inc.
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership5,579,022 shares
Latest Disclosed Value $ 161,735,848
Mackenzie Financial Corp ownership in T / AT&T Inc.

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 5,579,022 shares of AT&T Inc. (MX:T) valued at $161,735,848 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 4,765,712 shares of AT&T Inc.. This represents a change in shares of 17.07% during the quarter.

Mackenzie Financial Corp has a history of taking positions in derivatives of the underlying security (T) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:T / AT&T Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F AT&T COM 00206R102 5,579,022 813,310 17.07 161,736 37.06 0.1941
2026-02-18 2025-12-31 13F AT&T COM 00206R102 4,765,712 -738,032 -13.41 118,005 -24.08 0.1398
2025-11-13 2025-09-30 13F AT&T COM 00206R102 5,503,744 -4,448,663 -44.70 155,426 -46.04 0.1883
2025-08-13 2025-06-30 13F AT&T COM 00206R102 9,952,407 678,700 7.32 288,023 9.82 0.3732
2025-05-07 2025-03-31 13F AT&T COM 00206R102 9,273,707 2,018,961 27.83 262,260 58.76 0.3729
2025-05-02 2024-12-31 13F/A-2 AT&T COM 00206R102 7,254,746 3,297,211 83.31 165,191 89.73 0.2251
2025-02-20 2024-12-31 13F/A-1 AT&T COM 00206R102 7,254,746 3,297,211 165,191 0.2147
2025-02-14 2024-12-31 13F AT&T Common Stock 00206R102 7,254,746 3,297,211 163,906 0.2353
2024-11-13 2024-09-30 13F AT&T COM 00206R102 3,957,535 1,315,679 49.80 87,066 72.46 0.1212
2024-08-14 2024-06-30 13F AT&T COM 00206R102 2,641,856 288,093 12.24 50,486 21.87 0.0750
2024-05-10 2024-03-31 13F AT&T COM 00206R102 2,353,763 95,658 4.24 41,426 9.33 0.0597
2024-01-30 2023-12-31 13F AT&T COM 00206R102 2,258,105 -319,247 -12.39 37,891 -0.53 0.0571
2023-10-25 2023-09-30 13F AT&T COM 00206R102 2,577,352 294,986 12.92 38,093 3.54 0.0640
2023-08-03 2023-06-30 13F AT&T COM 00206R102 2,282,366 -575,897 -20.15 36,792 -33.13 0.0558
2023-04-24 2023-03-31 13F AT&T COM 00206R102 2,858,263 -7,067 -0.25 55,022 4.31 0.0850
2023-02-14 2022-12-31 13F AT&T COM 00206R102 2,865,330 281,116 10.88 52,751 33.07 0.0881
2022-10-07 2022-09-30 13F AT&T Common Stock 00206R102 2,584,214 33,695 1.32 39,642 -25.85 0.0682
2022-08-10 2022-06-30 13F AT&T COM 00206R102 2,550,519 1,169,765 84.72 53,459 117.08 0.0856
2022-05-13 2022-03-31 13F AT&T COM 00206R102 1,380,754 -140,192 -9.22 24,626 -34.18 0.0330
2022-02-14 2021-12-31 13F AT&T COM 00206R102 1,520,946 132,436 9.54 37,415 -0.24 0.0504
2021-11-08 2021-09-30 13F AT&T COM 00206R102 1,388,510 158,535 12.89 37,504 5.95 0.0532
2021-08-11 2021-06-30 13F AT&T COM 00206R102 1,229,975 -73,119 -5.61 35,399 -10.26 0.0492
2021-05-14 2021-03-31 13F AT&T COM 00206R102 1,303,094 43,828 3.48 39,445 8.92 0.0601
2021-02-10 2020-12-31 13F AT&T COM 00206R102 1,259,266 -4,703 -0.37 36,216 0.50 0.0782
2020-11-13 2020-09-30 13F AT&T COM 00206R102 1,263,969 -499,389 -28.32 36,036 -32.40 0.0895
2020-08-13 2020-06-30 13F AT&T COM 00206R102 1,763,358 -229,388 -11.51 53,306 -8.23 0.1427
2020-05-14 2020-03-31 13F AT&T COM 00206R102 1,992,746 514,239 34.78 58,089 0.53 0.1868
2020-02-13 2019-12-31 13F AT&T COM 00206R102 1,478,507 43,209 3.01 57,780 6.39 0.1421
2019-11-14 2019-09-30 13F AT&T COM 00206R102 1,435,298 -48,909 -3.30 54,312 9.20 0.1427
2019-08-23 2019-06-30 13F/A-1 AT&T COM 00206R102 1,484,207 -989,175 -39.99 49,736 -35.88 0.1283
2019-08-14 2019-06-30 13F AT&T COM 00206R102 1,484,207 -989,175 49,736
2019-05-15 2019-03-31 13F AT&T COM 00206R102 2,473,382 655,996 36.10 77,565 49.54 0.1872
2019-02-06 2018-12-31 13F AT&T COM 00206R102 1,817,386 1,353,668 291.92 51,868 233.09 0.1363
2018-11-15 2018-09-30 13F AT&T COM 00206R102 463,718 -38,868 -7.73 15,572 -3.51 0.0379
2018-08-13 2018-06-30 13F AT&T COM 00206R102 502,586 387,906 338.25 16,138 294.77 0.0412
2018-05-14 2018-03-31 13F/A-1 AT&T COM 00206R102 114,680 -1,412,661 -92.49 4,088 -93.12 0.0104
2018-05-14 2018-03-31 13F AT&T COM 00206R102 114,680 4,088
2018-02-13 2017-12-31 13F AT&T COM 00206R102 1,527,341 1,494,195 4,507.92 59,383 4,474.96 0.1433
2017-11-13 2017-09-30 13F AT&T COM 00206R102 33,146 25,037 308.76 1,298 324.18 0.0070
2017-08-14 2017-06-30 13F AT&T COM 00206R102 8,109 2,682 49.42 306 36.00 0.0017
2017-05-25 2017-03-31 13F/A-1 AT&T COM 00206R102 5,427 -156,100 -96.64 225 -96.72 0.0013
2017-05-12 2017-03-31 13F AT&T COM 00206R102 5,427 225
2017-02-14 2016-12-31 13F AT&T COM 00206R102 161,527 5,335 3.42 6,870 8.31 0.0411
2016-11-15 2016-09-30 13F AT&T COM 00206R102 156,192 -32,393 -17.18 6,343 -22.16 0.0396
2016-08-12 2016-06-30 13F AT&T COM 00206R102 188,585 83,379 79.25 8,149 97.74 0.0460
2016-05-12 2016-03-31 13F AT&T COM 00206R102 105,206 29,365 38.72 4,121 57.89 0.0374
2016-02-12 2015-12-31 13F AT&T COM 00206R102 75,841 2,147 2.91 2,610 8.70 0.0162
2015-11-13 2015-09-30 13F AT&T COM 00206R102 73,694 19,771 36.67 2,401 25.38 0.0146
2015-08-13 2015-06-30 13F AT&T COM 00206R102 53,923 -547 -1.00 1,915 7.71 0.0104
2015-05-13 2015-03-31 13F AT&T COM 00206R102 54,470 635 1.18 1,778 -1.66 0.0094
2015-02-11 2014-12-31 13F AT&T COM 00206R102 53,835 3,163 6.24 1,808 1.23 0.0092
2014-11-12 2014-09-30 13F AT&T COM 00206R102 50,672 20,220 66.40 1,786 65.83 0.0090
2014-08-11 2014-06-30 13F AT&T COM 00206R102 30,452 2,907 10.55 1,077 11.49 0.0050
2014-05-14 2014-03-31 13F AT&T COM 00206R102 27,545 -14,188 -34.00 966 -34.15 0.0047
2014-02-11 2013-12-31 13F/A-1 AT&T COM 00206R102 41,733 3,294 8.57 1,467 12.85 0.0074
2014-02-03 2013-12-31 13F AT&T COM 00206R102 41,733 1,467
2013-11-12 2013-09-30 13F AT&T COM 00206R102 38,439 -1,198 -3.02 1,300 -7.34 0.0066
2013-08-20 2013-06-30 13F/A-1 AT&T COM 00206R102 39,637 39,637 1,403 0.0067
2013-08-09 2013-06-30 13F AT&T COM 00206R102 39,637 1,403 0.0067
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-13 2025-09-30 13F AT&T COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F AT&T COM Put 13,400 -55.63 2 -71.43 n/a n/a n/a
2025-05-07 2025-03-31 13F AT&T COM Put 30,200 8 n/a n/a n/a
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.