Atmos Energy Corporation
IT ˙ BIT ˙ US0495601058
155,00 € 0,00 (0,00%)
2026-06-03
DEL PRIS
SecurityIT:1ATO / Atmos Energy Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership141,969 shares
Latest Disclosed Value $ 26,224,514
Asset Management One Co., Ltd. reports 1.23% decrease in ownership of 1ATO / Atmos Energy Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 141,969 shares of Atmos Energy Corporation (IT:1ATO) valued at $22,289,133 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 143,737 shares of Atmos Energy Corporation. This represents a change in shares of -1.23% during the quarter. The current value of the position is $22,005,195 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)
2026-05-08 2026-03-31 13F ATMOS ENERGY COM 049560105 141,969 -1,768 -1.23 26,225 8.23 0.0773
2026-01-27 2025-12-31 13F ATMOS ENERGY COM 049560105 143,737 16,256 12.75 24,231 11.32 0.0674
2025-10-22 2025-09-30 13F ATMOS ENERGY COM 049560105 127,481 -11,121 -8.02 21,767 1.91 0.0631
2025-07-31 2025-06-30 13F ATMOS ENERGY COM 049560105 138,602 -3,609 -2.54 21,360 -2.83 0.0670
2025-04-23 2025-03-31 13F ATMOS ENERGY COM 049560105 142,211 12,153 9.34 21,983 21.29 0.0760
2025-01-30 2024-12-31 13F ATMOS ENERGY COM 049560105 130,058 -6,329 -4.64 18,125 -4.20 0.0623
2024-10-30 2024-09-30 13F ATMOS ENERGY COM 049560105 136,387 5,343 4.08 18,918 23.76 0.0673
2024-07-18 2024-06-30 13F ATMOS ENERGY COM 049560105 131,044 1,415 1.09 15,286 -0.79 0.0585
2024-05-02 2024-03-31 13F ATMOS ENERGY COM 049560105 129,629 -3,514 -2.64 15,409 -0.30 0.0594
2024-01-24 2023-12-31 13F ATMOS ENERGY COM 049560105 133,143 -1,015 -0.76 15,455 8.75 0.0622
2023-10-19 2023-09-30 13F ATMOS ENERGY COM 049560105 134,158 1,385 1.04 14,211 -8.00 0.0633
2023-07-31 2023-06-30 13F ATMOS ENERGY COM 049560105 132,773 -4,255 -3.11 15,447 0.32 0.0654
2023-04-25 2023-03-31 13F ATMOS ENERGY COM 049560105 137,028 3,955 2.97 15,396 1.09 0.0698
2023-02-06 2022-12-31 13F ATMOS ENERGY COM 049560105 133,073 -1,491 -1.11 15,231 11.13 0.0742
2022-11-04 2022-09-30 13F ATMOS ENERGY COM 049560105 134,564 -2,646 -1.93 13,705 -10.90 0.0697
2022-07-29 2022-06-30 13F ATMOS ENERGY COM 049560105 137,210 -11,975 -8.03 15,381 -13.72 0.0722
2022-05-13 2022-03-31 13F ATMOS ENERGY COM 049560105 149,185 -15,145 -9.22 17,826 3.48 0.0696
2022-02-09 2021-12-31 13F ATMOS ENERGY COM 049560105 164,330 813 0.50 17,226 19.44 0.0600
2021-11-02 2021-09-30 13F ATMOS ENERGY COM 049560105 163,517 1,629 1.01 14,422 -7.31 0.0553
2021-08-03 2021-06-30 13F ATMOS ENERGY COM 049560105 161,888 3,056 1.92 15,559 -0.90 0.0579
2021-05-14 2021-03-31 13F ATMOS ENERGY COM 049560105 158,832 15,765 11.02 15,700 17.68 0.0623
2021-02-12 2020-12-31 13F ATMOS ENERGY COM 049560105 143,067 6,407 4.69 13,341 2.14 0.0549
2020-11-13 2020-09-30 13F ATMOS ENERGY COM 049560105 136,660 -1,800 -1.30 13,061 -5.27 0.0600
2020-08-14 2020-06-30 13F ATMOS ENERGY COM 049560105 138,460 -187 -0.13 13,788 0.21 0.0678
2020-05-14 2020-03-31 13F ATMOS ENERGY COM 049560105 138,647 2,426 1.78 13,759 -9.71 0.0803
2020-02-14 2019-12-31 13F ATMOS ENERGY COM 049560105 136,221 7,812 6.08 15,238 4.18 0.0687
2019-11-14 2019-09-30 13F ATMOS ENERGY COM 049560105 128,409 -7,283 -5.37 14,627 2.10 0.0705
2019-08-14 2019-06-30 13F ATMOS ENERGY COM 049560105 135,692 11,404 9.18 14,326 12.01 0.0704
2019-05-15 2019-03-31 13F ATMOS ENERGY COM 049560105 124,288 -167,034 -57.34 12,790 -52.49 0.0692
2019-02-13 2018-12-31 13F ATMOS ENERGY COM 049560105 291,322 28,242 10.74 26,923 9.06 0.0642
2018-11-14 2018-09-30 13F ATMOS ENERGY COM 049560105 263,080 -13 -0.00 24,687 4.06 0.0507
2018-08-14 2018-06-30 13F ATMOS ENERGY COM 049560105 263,093 16,562 6.72 23,723 14.23 0.0518
2018-05-14 2018-03-31 13F ATMOS ENERGY COM 049560105 246,531 -14,335 -5.50 20,768 -7.23 0.0468
2018-02-14 2017-12-31 13F ATMOS ENERGY COM 049560105 260,866 -91,232 -25.91 22,386 -24.35 0.0494
2017-11-14 2017-09-30 13F ATMOS ENERGY COM 049560105 352,098 -17,667 -4.78 29,590 -3.42 0.0695
2017-08-14 2017-06-30 13F ATMOS ENERGY COM 049560105 369,765 16,007 4.52 30,638 9.64 0.0782
2017-05-11 2017-03-31 13F ATMOS ENERGY COM 049560105 353,758 135,716 62.24 27,945 72.70 0.0734
2017-05-02 2016-12-31 13F/A-1 ATMOS ENERGY COM 049560105 218,042 191,894 733.88 16,181 727.67 0.0414
2017-02-13 2016-12-31 13F ATMOS ENERGY COM 049560105 218,042 16,181
2016-11-07 2016-09-30 13F ATMOS ENERGY Com 049560105 26,148 -2,151 -7.60 1,955 -12.68 0.0290
2016-08-03 2016-06-30 13F ATMOS ENERGY Com 049560105 28,299 -2,542 -8.24 2,239 -2.01 0.0336
2016-05-05 2016-03-31 13F ATMOS ENERGY Com 049560105 30,841 3,002 10.78 2,285 28.30 0.0334
2016-01-28 2015-12-31 13F ATMOS ENERGY Com 049560105 27,839 8,429 43.43 1,781 60.16 0.0266
2015-11-12 2015-09-30 13F ATMOS ENERGY Com 049560105 19,410 19,410 1,112 0.0169
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.