Atmos Energy Corporation
US ˙ NYSE ˙ US0495601058

SecurityATO / Atmos Energy Corporation
InstitutionCommonwealth Equity Services, Llc
Latest Disclosed Ownership22,301 shares
Latest Disclosed Value $ 3,738,376
Commonwealth Equity Services, Llc reports 26.54% decrease in ownership of ATO / Atmos Energy Corporation

On February 12, 2026 - Commonwealth Equity Services, Llc filed a 13F-HR form disclosing ownership of 22,301 shares of Atmos Energy Corporation (US:ATO) valued at $3,738,317 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 30,360 shares of Atmos Energy Corporation. This represents a change in shares of -26.54% during the quarter. The current value of the position is $3,745,676 USD.

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)
2026-02-12 2025-12-31 13F ATMOS ENERGY COM 049560105 22,301 -8,059 -26.54 3,738 74,660.00 0.0050
2025-10-22 2025-09-30 13F ATMOS ENERGY COM 049560105 30,360 1,536 5.33 5 25.00 0.0067
2025-08-06 2025-06-30 13F ATMOS ENERGY COM 049560105 28,824 -1,007 -3.38 4 0.00 0.0059
2025-05-09 2025-03-31 13F ATMOS ENERGY COM 049560105 29,831 4,495 17.74 5 33.33 0.0065
2025-02-10 2024-12-31 13F ATMOS ENERGY COM 049560105 25,336 1,922 8.21 4 0.00 0.0052
2024-10-18 2024-09-30 13F ATMOS ENERGY COM 049560105 23,414 -218 -0.92 3 50.00 0.0049
2024-07-31 2024-06-30 13F ATMOS ENERGY COM 049560105 23,632 1,581 7.17 3 0.00 0.0044
2024-04-29 2024-03-31 13F ATMOS ENERGY COM 049560105 22,051 -359 -1.60 3 0.00 0.0044
2024-02-06 2023-12-31 13F ATMOS ENERGY COM 049560105 22,410 -190 -0.84 3 0.00 0.0048
2023-10-23 2023-09-30 13F ATMOS ENERGY COM 049560105 22,600 -407 -1.77 2 0.00 0.0050
2023-08-10 2023-06-30 13F ATMOS ENERGY COM 049560105 23,007 -96 -0.42 3 0.00 0.0054
2023-05-11 2023-03-31 13F ATMOS ENERGY COM 049560105 23,103 444 1.96 3 0.00 0.0054
2023-02-07 2022-12-31 13F ATMOS ENERGY COM 049560105 22,659 1,682 8.02 3 -99.91 0.0061
2022-11-14 2022-09-30 13F ATMOS ENERGY COM 049560105 20,977 869 4.32 2,136 -5.24 0.0055
2022-07-19 2022-06-30 13F ATMOS ENERGY COM 049560105 20,108 -271 -1.33 2,254 -7.43 0.0059
2022-05-04 2022-03-31 13F ATMOS ENERGY COM 049560105 20,379 926 4.76 2,435 19.48 0.0056
2022-01-31 2021-12-31 13F ATMOS ENERGY COM 049560105 19,453 737 3.94 2,038 23.52 0.0046
2021-10-29 2021-09-30 13F ATMOS ENERGY COM 049560105 18,716 -254 -1.34 1,650 -9.49 0.0041
2021-08-11 2021-06-30 13F ATMOS ENERGY COM 049560105 18,970 1,418 8.08 1,823 5.07 0.0046
2021-05-04 2021-03-31 13F ATMOS ENERGY COM 049560105 17,552 -51 -0.29 1,735 3.34 0.0049
2021-02-11 2020-12-31 13F ATMOS ENERGY COM 049560105 17,603 -1,534 -8.02 1,679 -8.20 0.0051
2020-11-05 2020-09-30 13F ATMOS ENERGY COM 049560105 19,137 -650 -3.28 1,829 -7.16 0.0062
2020-08-12 2020-06-30 13F ATMOS ENERGY COM 049560105 19,787 111 0.56 1,970 0.92 0.0074
2020-05-11 2020-03-31 13F ATMOS ENERGY COM 049560105 19,676 -13 -0.07 1,952 -11.35 0.0091
2020-02-05 2019-12-31 13F ATMOS ENERGY COM 049560105 19,689 1,071 5.75 2,202 3.87 0.0084
2019-10-30 2019-09-30 13F ATMOS ENERGY COM 049560105 18,618 84 0.45 2,120 8.38 0.0090
2019-07-19 2019-06-30 13F ATMOS ENERGY COM 049560105 18,534 -1,061 -5.41 1,956 -2.98 0.0086
2019-05-13 2019-03-31 13F ATMOS ENERGY COM 049560105 19,595 529 2.77 2,016 14.09 0.0093
2019-02-11 2018-12-31 13F ATMOS ENERGY COM 049560105 19,066 938 5.17 1,767 3.82 0.0094
2018-11-06 2018-09-30 13F ATMOS ENERGY COM 049560105 18,128 404 2.28 1,702 6.51 0.0082
2018-07-31 2018-06-30 13F ATMOS ENERGY COM 049560105 17,724 1,659 10.33 1,598 18.11 0.0084
2018-05-14 2018-03-31 13F ATMOS ENERGY COM 049560105 16,065 663 4.30 1,353 2.27 0.0073
2018-02-12 2017-12-31 13F ATMOS ENERGY COM 049560105 15,402 15,402 1,323 0.0072
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.