Atmos Energy Corporation
US ˙ NYSE ˙ US0495601058

SecurityATO / Atmos Energy Corporation
InstitutionThomasville National Bank
Latest Disclosed Ownership2,466 shares
Latest Disclosed Value $ 413,376
Thomasville National Bank reports 0.94% increase in ownership of ATO / Atmos Energy Corporation

On January 26, 2026 - Thomasville National Bank filed a 13F-HR form disclosing ownership of 2,466 shares of Atmos Energy Corporation (US:ATO) valued at $413,376 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 10, 2025 disclosing 2,443 shares of Atmos Energy Corporation. This represents a change in shares of 0.94% during the quarter. The current value of the position is $415,028 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)
2026-01-26 2025-12-31 13F ATMOS ENERGY Common Stock 049560105 2,466 23 0.94 413 -0.96 0.0256
2025-10-10 2025-09-30 13F ATMOS ENERGY Common Stock 049560105 2,443 2,443 417 0.0263
2024-10-11 2024-09-30 13F ATMOS ENERGY Common Stock 049560105 0 -12,837 -100.00 0 -100.00
2024-07-10 2024-06-30 13F ATMOS ENERGY Common Stock 049560105 12,837 70 0.55 1,497 -1.32 0.1199
2024-04-10 2024-03-31 13F ATMOS ENERGY Common Stock 049560105 12,767 109 0.86 1,518 3.41 0.1249
2024-01-11 2023-12-31 13F ATMOS ENERGY Common Stock 049560105 12,658 38 0.30 1,467 9.81 0.1301
2023-10-10 2023-09-30 13F ATMOS ENERGY Common Stock 049560105 12,620 27 0.21 1,337 -8.81 0.1315
2023-07-10 2023-06-30 13F ATMOS ENERGY Common Stock 049560105 12,593 394 3.23 1,465 6.93 0.1399
2023-04-10 2023-03-31 13F ATMOS ENERGY Common Stock 049560105 12,199 291 2.44 1,371 136,900.00 0.1413
2023-01-10 2022-12-31 13F ATMOS ENERGY Common Stock 049560105 11,908 -583 -4.67 1 -99.92 0.1539
2022-10-03 2022-09-30 13F ATMOS ENERGY Common Stock 049560105 12,491 274 2.24 1,272 -7.15 0.1525
2022-07-28 2022-06-30 13F/A-1 ATMOS ENERGY Common Stock 049560105 12,217 1,483 13.82 1,370 6.78 0.1511
2022-07-11 2022-06-30 13F ATMOS ENERGY Common Stock 049560105 10,584 -150 1,265 0.1222
2022-04-14 2022-03-31 13F ATMOS ENERGY Common Stock 049560105 10,734 62 0.58 1,283 14.76 0.1231
2022-01-18 2021-12-31 13F ATMOS ENERGY Common Stock 049560105 10,672 1,075 11.20 1,118 32.15 0.1069
2021-10-04 2021-09-30 13F ATMOS ENERGY Common Stock 049560105 9,597 9,597 846 0.0877
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.