阿特莫斯能源公司
MX ˙ BMV ˙ US0495601058
SecurityMX:ATO / Atmos Energy Corporation
InstitutionSfmg, Llc
Latest Disclosed Ownership1,058,545 shares
Latest Disclosed Value $ 195,534,483
Sfmg, Llc reports 0.17% decrease in ownership of ATO / Atmos Energy Corporation

On May 12, 2026 - Sfmg, Llc filed a 13F-HR form disclosing ownership of 1,058,545 shares of Atmos Energy Corporation (MX:ATO) valued at $195,534,483 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,060,389 shares of Atmos Energy Corporation. This represents a change in shares of -0.17% 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 ATMOS ENERGY COM 049560105 1,058,545 -1,844 -0.17 195,534 10.00 13.2396
2026-02-10 2025-12-31 13F ATMOS ENERGY COM 049560105 1,060,389 18,247 1.75 177,753 -0.11 11.9159
2025-11-13 2025-09-30 13F ATMOS ENERGY COM 049560105 1,042,142 -983 -0.09 177,946 10.69 12.3356
2025-08-12 2025-06-30 13F ATMOS ENERGY COM 049560105 1,043,125 -15,417 -1.46 160,756 -1.76 12.0653
2025-05-09 2025-03-31 13F ATMOS ENERGY COM 049560105 1,058,542 -664 -0.06 163,629 10.92 12.9132
2025-02-11 2024-12-31 13F ATMOS ENERGY COM 049560105 1,059,206 7,501 0.71 147,516 1.12 11.6293
2024-11-25 2024-09-30 13F ATMOS ENERGY COM 049560105 1,051,705 -7,516 -0.71 145,882 18.07 11.8260
2024-08-14 2024-06-30 13F ATMOS ENERGY COM 049560105 1,059,221 9,253 0.88 123,558 -1.00 10.7427
2024-05-07 2024-03-31 13F ATMOS ENERGY COM 049560105 1,049,968 -33,881 -3.13 124,810 -0.64 10.7294
2024-01-30 2023-12-31 13F ATMOS ENERGY COM 049560105 1,083,849 -1,788 -0.16 125,618 9.23 11.6397
2023-11-06 2023-09-30 13F ATMOS ENERGY COM 049560105 1,085,637 -17,972 -1.63 115,002 -10.43 11.8202
2023-08-14 2023-06-30 13F ATMOS ENERGY COM 049560105 1,103,609 -5,254 -0.47 128,394 3.05 13.2117
2023-05-01 2023-03-31 13F ATMOS ENERGY COM 049560105 1,108,863 -58,682 -5.03 124,592 -4.78 13.4187
2023-01-25 2022-12-31 13F ATMOS ENERGY COM 049560105 1,167,545 -973 -0.08 130,847 12.81 14.5211
2022-10-20 2022-09-30 13F ATMOS ENERGY COM 049560105 1,168,518 -5,648 -0.48 115,987 -11.88 13.5358
2022-08-08 2022-06-30 13F ATMOS ENERGY COM 049560105 1,174,166 -10,512 -0.89 131,624 -7.02 15.2695
2022-04-21 2022-03-31 13F ATMOS ENERGY COM 049560105 1,184,678 -59,507 -4.78 141,557 8.60 13.9960
2022-01-31 2021-12-31 13F ATMOS ENERGY COM 049560105 1,244,185 17,870 1.46 130,353 20.52 12.6695
2021-11-01 2021-09-30 13F ATMOS ENERGY COM 049560105 1,226,315 -6,416 -0.52 108,161 -8.71 11.9985
2021-08-06 2021-06-30 13F ATMOS ENERGY COM 049560105 1,232,731 10,397 0.85 118,478 -1.94 13.1596
2021-05-03 2021-03-31 13F ATMOS ENERGY COM 049560105 1,222,334 3,405 0.28 120,828 3.87 14.0091
2021-02-02 2020-12-31 13F ATMOS ENERGY COM 049560105 1,218,929 20,118 1.68 116,322 1.51 14.7502
2020-11-12 2020-09-30 13F ATMOS ENERGY COM 049560105 1,198,811 -253 -0.02 114,594 -4.03 15.8054
2020-08-03 2020-06-30 13F ATMOS ENERGY COM 049560105 1,199,064 8,901 0.75 119,403 1.10 17.0130
2020-05-08 2020-03-31 13F ATMOS ENERGY COM 049560105 1,190,163 -3,079 -0.26 118,100 -11.52 17.7087
2020-02-05 2019-12-31 13F ATMOS ENERGY COM 049560105 1,193,242 10,372 0.88 133,476 -0.92 16.3278
2019-11-12 2019-09-30 13F/A-1 ATMOS ENERGY COM 049560105 1,182,870 -5,672 -0.48 134,717 4.82 18.2376
2019-10-29 2019-09-30 13F ATMOS ENERGY COM 049560105 1,182,870 -5,672 134,717 18.2376
2019-08-05 2019-06-30 13F ATMOS ENERGY COM 049560105 1,188,542 75,420 6.78 128,517 12.17 17.4386
2019-05-13 2019-03-31 13F ATMOS ENERGY COM 049560105 1,113,122 13,640 1.24 114,574 12.39 16.5629
2019-02-12 2018-12-31 13F ATMOS ENERGY COM 049560105 1,099,482 17,782 1.64 101,944 2.28 16.4886
2018-11-15 2018-09-30 13F ATMOS ENERGY COM 049560105 1,081,700 -10,154 -0.93 99,668 1.27 15.3255
2018-08-08 2018-06-30 13F ATMOS ENERGY COM 049560105 1,091,854 17,959 1.67 98,420 8.79 15.9504
2018-05-10 2018-03-31 13F ATMOS ENERGY COM 049560105 1,073,895 -20,610 -1.88 90,465 -3.77 15.3348
2018-02-09 2017-12-31 13F ATMOS ENERGY COM 049560105 1,094,505 16,697 1.55 94,007 4.03 15.6028
2017-11-07 2017-09-30 13F ATMOS ENERGY COM 049560105 1,077,808 -385 -0.04 90,363 1.04 17.6627
2017-08-07 2017-06-30 13F ATMOS ENERGY COM 049560105 1,078,193 15,547 1.46 89,436 6.55 18.5458
2017-05-01 2017-03-31 13F ATMOS ENERGY COM 049560105 1,062,646 1,715 0.16 83,938 6.70 16.9922
2017-02-10 2016-12-31 13F ATMOS ENERGY COM 049560105 1,060,931 33,871 3.30 78,668 2.85 16.7682
2016-12-09 2016-09-30 13F ATMOS ENERGY COM 049560105 1,027,060 7,992 0.78 76,485 -7.71 16.7834
2016-08-13 2016-06-30 13F ATMOS ENERGY COM 049560105 1,019,068 17,842 1.78 82,871 11.46 18.5073
2016-05-16 2016-03-31 13F ATMOS ENERGY COM 049560105 1,001,226 4,097 0.41 74,351 18.28 16.3745
2016-02-08 2015-12-31 13F ATMOS ENERGY COM 049560105 997,129 47,924 5.05 62,859 13.82 14.3190
2015-11-13 2015-09-30 13F ATMOS ENERGY COM 049560105 949,205 96 0.01 55,225 13.47 13.3488
2015-08-12 2015-06-30 13F ATMOS ENERGY COM 049560105 949,109 -1,001,078 -51.33 48,670 -54.87 10.8864
2015-05-11 2015-03-31 13F ATMOS ENERGY COM 049560105 1,950,187 1,039,150 114.06 107,845 112.37 8.7095
2015-02-11 2014-12-31 13F ATMOS ENERGY COM 049560105 911,037 65,065 7.69 50,781 25.84 11.2983
2014-11-14 2014-09-30 13F ATMOS ENERGY COM 049560105 845,972 117 0.01 40,353 -10.66 12.6370
2014-08-14 2014-06-30 13F ATMOS ENERGY COM 049560105 845,855 35,451 4.37 45,169 18.26 15.5466
2014-05-14 2014-03-31 13F ATMOS ENERGY COM 049560105 810,404 126 0.02 38,194 3.78 12.8613
2014-02-05 2013-12-31 13F ATMOS ENERGY COM 049560105 810,278 65,865 8.85 36,803 16.08 12.6492
2013-11-14 2013-09-30 13F ATMOS ENERGY COM 049560105 744,413 24,447 3.40 31,705 7.25 12.7067
2013-08-19 2013-06-30 13F ATMOS ENERGY COM 049560105 719,966 719,966 29,562 11.8145
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.