Atmos Energy Corporation
MX ˙ BMV ˙ US0495601058
SecurityMX:ATO / Atmos Energy Corporation
InstitutionStephens Inc /ar/
Latest Disclosed Ownership1,932 shares
Latest Disclosed Value $ 356,943
Stephens Inc /ar/ reports 20.85% decrease in ownership of ATO / Atmos Energy Corporation

On April 28, 2026 - Stephens Inc /ar/ filed a 13F-HR form disclosing ownership of 1,932 shares of Atmos Energy Corporation (MX:ATO) valued at $356,943 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,441 shares of Atmos Energy Corporation. This represents a change in shares of -20.85% 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)
2026-04-28 2026-03-31 13F ATMOS ENERGY COM 049560105 1,932 -509 -20.85 357 -12.96 0.0045
2026-02-05 2025-12-31 13F ATMOS ENERGY COM 049560105 2,441 -111 -4.35 409 -5.98 0.0051
2025-10-27 2025-09-30 13F ATMOS ENERGY COM 049560105 2,552 7 0.28 436 10.97 0.0056
2025-07-29 2025-06-30 13F ATMOS ENERGY COM 049560105 2,545 166 6.98 392 6.81 0.0054
2025-05-01 2025-03-31 13F ATMOS ENERGY COM 049560105 2,379 -29 -1.20 368 9.55 0.0054
2025-01-28 2024-12-31 13F ATMOS ENERGY COM 049560105 2,408 -5 -0.21 335 0.30 0.0047
2024-10-28 2024-09-30 13F ATMOS ENERGY COM 049560105 2,413 -23 -0.94 335 17.61 0.0047
2024-08-06 2024-06-30 13F ATMOS ENERGY COM 049560105 2,436 628 34.73 284 32.71 0.0043
2024-05-15 2024-03-31 13F ATMOS ENERGY COM 049560105 1,808 75 4.33 215 7.00 0.0033
2024-02-13 2023-12-31 13F ATMOS ENERGY COM 049560105 1,733 1,733 201 0.0035
2023-05-15 2023-03-31 13F ATMOS ENERGY COM 049560105 0 -1,992 -100.00 0 -100.00
2023-02-14 2022-12-31 13F/A-1 ATMOS ENERGY COM 049560105 1,992 -9,821 -83.14 223 -81.46 0.0046
2023-01-25 2022-12-31 13F ATMOS ENERGY OM 049560105 1,992 -9,821 0 0.0046
2022-11-02 2022-09-30 13F ATMOS ENERGY OM 049560105 11,813 -623 -5.01 1,203 -13.70 0.0257
2022-08-03 2022-06-30 13F ATMOS ENERGY OM 049560105 12,436 -216 -1.71 1,394 -7.80 0.0281
2022-05-04 2022-03-31 13F ATMOS ENERGY OM 049560105 12,652 -1,297 -9.30 1,512 3.49 0.0247
2022-03-07 2021-12-31 13F ATMOS ENERGY OM 049560105 13,949 -6,655 -32.30 1,461 -19.59 0.0221
2021-10-27 2021-09-30 13F ATMOS ENERGY COM 049560105 20,604 -8,884 -30.13 1,817 -35.89 0.0281
2021-08-12 2021-06-30 13F ATMOS ENERGY COM 049560105 29,488 1,343 4.77 2,834 1.87 0.0424
2021-05-14 2021-03-31 13F ATMOS ENERGY COM 049560105 28,145 3,274 13.16 2,782 17.24 0.0457
2021-02-10 2020-12-31 13F ATMOS ENERGY COM 049560105 24,871 -1,920 -7.17 2,373 -7.34 0.0426
2020-11-13 2020-09-30 13F ATMOS ENERGY COM 049560105 26,791 1,609 6.39 2,561 2.11 0.0504
2020-08-24 2020-06-30 13F ATMOS ENERGY COM 049560105 25,182 2,169 9.43 2,508 9.81 0.0539
2020-05-14 2020-03-31 13F ATMOS ENERGY COM 049560105 23,013 1,192 5.46 2,284 -6.43 0.0608
2020-02-14 2019-12-31 13F ATMOS ENERGY COM 049560105 21,821 2,995 15.91 2,441 13.85 0.0511
2019-10-18 2019-09-30 13F ATMOS ENERGY COM 049560105 18,826 372 2.02 2,144 10.06 0.0472
2019-08-01 2019-06-30 13F ATMOS ENERGY COM 049560105 18,454 351 1.94 1,948 4.56 0.0441
2019-05-03 2019-03-31 13F ATMOS ENERGY COM 049560105 18,103 3,119 20.82 1,863 34.13 0.0442
2019-02-11 2018-12-31 13F ATMOS ENERGY COM 049560105 14,984 1,714 12.92 1,389 11.48 0.0394
2018-11-14 2018-09-30 13F ATMOS ENERGY COM 049560105 13,270 516 4.05 1,246 8.35 0.0310
2018-08-10 2018-06-30 13F ATMOS ENERGY COM 049560105 12,754 -3,801 -22.96 1,150 -17.56 0.0347
2018-05-03 2018-03-31 13F ATMOS ENERGY COM 049560105 16,555 3,509 26.90 1,395 24.55 0.0520
2018-02-05 2017-12-31 13F ATMOS ENERGY COM 049560105 13,046 4,342 49.89 1,120 53.42 0.0419
2017-11-08 2017-09-30 13F ATMOS ENERGY COM 049560105 8,704 1,145 15.15 730 16.43 0.0264
2017-08-10 2017-06-30 13F ATMOS ENERGY COM 049560105 7,559 1,759 30.33 627 36.90 0.0215
2017-05-11 2017-03-31 13F ATMOS ENERGY COM 049560105 5,800 1,080 22.88 458 30.86 0.0167
2017-02-09 2016-12-31 13F ATMOS ENERGY COM 049560105 4,720 1,173 33.07 350 32.58 0.0143
2016-11-30 2016-09-30 13F/A-2 ATMOS ENERGY COM 049560105 3,547 560 18.75 264 8.64 0.0116
2016-11-10 2016-09-30 13F ATMOS ENERGY COM 049560105 3,547 264
2016-08-05 2016-06-30 13F ATMOS ENERGY COM 049560105 2,987 2,987 243 0.0108
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.