애트모스 에너지 코퍼레이션
MX ˙ BMV ˙ US0495601058
SecurityMX:ATO / Atmos Energy Corporation
InstitutionDean Capital Management
Latest Disclosed Ownership13,871 shares
Latest Disclosed Value $ 2,562,251
Dean Capital Management reports 0.01% decrease in ownership of ATO / Atmos Energy Corporation

On May 15, 2026 - Dean Capital Management filed a 13F-HR form disclosing ownership of 13,871 shares of Atmos Energy Corporation (MX:ATO) valued at $2,562,251 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 20, 2026 disclosing 13,873 shares of Atmos Energy Corporation. This represents a change in shares of -0.01% 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)
2026-05-15 2026-03-31 13F Atmos Energy CS 049560105 13,871 -2 -0.01 2,562 10.19 1.0614
2026-02-20 2025-12-31 13F Atmos Energy CS 049560105 13,873 434 3.23 2,326 1.35 0.9908
2025-11-14 2025-09-30 13F Atmos Energy CS 049560105 13,439 0 0.00 2,295 10.77 0.8948
2025-08-14 2025-06-30 13F Atmos Energy CS 049560105 13,439 719 5.65 2,071 5.34 0.8512
2025-05-16 2025-03-31 13F Atmos Energy CS 049560105 12,720 308 2.48 1,966 13.77 0.8567
2025-02-14 2024-12-31 13F Atmos Energy CS 049560105 12,412 -1,214 -8.91 1,729 -8.57 0.7360
2024-11-14 2024-09-30 13F Atmos Energy CS 049560105 13,626 13,626 1,890 0.8025
2024-08-14 2024-06-30 13F Atmos Energy CS 049560105 0 -11,791 -100.00 0 -100.00
2024-05-14 2024-03-31 13F Atmos Energy CS 049560105 11,791 0 0.00 1,402 2.56 0.8155
2024-02-14 2023-12-31 13F Atmos Energy CS 049560105 11,791 1,913 19.37 1,367 30.59 0.8439
2023-11-14 2023-09-30 13F Atmos Energy CS 049560105 9,878 9,878 1,046 0.7835
2021-05-11 2021-03-31 13F Atmos Energy CS 049560105 0 -7,131 -100.00 0 -100.00
2021-02-16 2020-12-31 13F Atmos Energy CS 049560105 7,131 1,125 18.73 681 18.64 0.4037
2020-11-16 2020-09-30 13F Atmos Energy CS 049560105 6,006 103 1.74 574 -2.38 0.5913
2020-08-14 2020-06-30 13F Atmos Energy CS 049560105 5,903 -675 -10.26 588 -9.95 0.6864
2020-05-14 2020-03-31 13F Atmos Energy CS 049560105 6,578 259 4.10 653 -7.64 0.9701
2020-02-13 2019-12-31 13F/A-1 Atmos Energy CS 049560105 6,319 82 1.31 707 -0.42 0.6711
2020-02-13 2019-12-31 13F Atmos Energy CS 049560105 6,319 707
2019-11-14 2019-09-30 13F Atmos Energy CS 049560105 6,237 -259 -3.99 710 3.50 0.7331
2019-08-14 2019-06-30 13F Atmos Energy CS 049560105 6,496 6,496 686 0.7141
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.