Atmos Energy Corporation
MX ˙ BMV ˙ US0495601058
SecurityMX:ATO / Atmos Energy Corporation
InstitutionCornerstone Wealth Management, LLC
Latest Disclosed Ownership4,331 shares
Latest Disclosed Value $ 800,086
Cornerstone Wealth Management, LLC reports 1.61% decrease in ownership of ATO / Atmos Energy Corporation

On April 23, 2026 - Cornerstone Wealth Management, LLC filed a 13F-HR form disclosing ownership of 4,331 shares of Atmos Energy Corporation (MX:ATO) valued at $800,086 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 4,402 shares of Atmos Energy Corporation. This represents a change in shares of -1.61% 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)
2026-04-23 2026-03-31 13F ATMOS ENERGY COM 049560105 4,331 -71 -1.61 800 8.55 0.0400
2026-02-05 2025-12-31 13F ATMOS ENERGY COM 049560105 4,402 -9 -0.20 738 -2.12 0.0384
2025-11-04 2025-09-30 13F ATMOS ENERGY COM 049560105 4,411 219 5.22 753 16.56 0.0416
2025-08-12 2025-06-30 13F ATMOS ENERGY COM 049560105 4,192 -64 -1.50 646 -1.67 0.0392
2025-04-18 2025-03-31 13F ATMOS ENERGY COM 049560105 4,256 -92 -2.12 658 8.60 0.0445
2025-01-21 2024-12-31 13F ATMOS ENERGY COM 049560105 4,348 248 6.05 606 6.51 0.0409
2024-10-16 2024-09-30 13F ATMOS ENERGY COM 049560105 4,100 67 1.66 569 20.85 0.0400
2024-07-16 2024-06-30 13F ATMOS ENERGY COM 049560105 4,033 221 5.80 470 3.75 0.0362
2024-04-19 2024-03-31 13F ATMOS ENERGY COM 049560105 3,812 -48 -1.24 453 1.34 0.0367
2024-01-10 2023-12-31 13F ATMOS ENERGY COM 049560105 3,860 278 7.76 447 17.94 0.0385
2023-11-07 2023-09-30 13F ATMOS ENERGY COM 049560105 3,582 68 1.94 379 -7.11 0.0358
2023-07-14 2023-06-30 13F ATMOS ENERGY COM 049560105 3,514 145 4.30 409 7.94 0.0365
2023-05-15 2023-03-31 13F ATMOS ENERGY COM 049560105 3,369 558 19.85 379 32.17 0.0372
2022-10-14 2022-09-30 13F ATMOS ENERGY COM 049560105 2,811 -260 -8.47 286 -16.86 0.0318
2022-08-04 2022-06-30 13F ATMOS ENERGY COM 049560105 3,071 477 18.39 344 10.97 0.0381
2022-04-21 2022-03-31 13F ATMOS ENERGY COM 049560105 2,594 -76 -2.85 310 11.51 0.0301
2022-02-14 2021-12-31 13F ATMOS ENERGY COM 049560105 2,670 137 5.41 278 24.66 0.0265
2021-11-12 2021-09-30 13F ATMOS ENERGY COM 049560105 2,533 296 13.23 223 3.72 0.0237
2021-08-09 2021-06-30 13F ATMOS ENERGY COM 049560105 2,237 46 2.10 215 -0.92 0.0226
2021-04-30 2021-03-31 13F ATMOS ENERGY COM 049560105 2,191 2,191 217 0.0257
2019-02-13 2018-12-31 13F ATMOS ENERGY COM 049560105 0 -181,132 -100.00 0 -100.00
2018-10-19 2018-09-30 13F ATMOS ENERGY COM 049560105 181,132 97,296 116.06 2,122 128.66 0.0267
2018-07-20 2018-06-30 13F ATMOS ENERGY COM 049560105 83,836 83,836 928 0.0105
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.