Atmos Energy Corporation
US ˙ NYSE ˙ US0495601058

SecurityATO / Atmos Energy Corporation
InstitutionBessemer Group Inc
Latest Disclosed Ownership3,155 shares
Latest Disclosed Value $ 584
Bessemer Group Inc reports 37.95% increase in ownership of ATO / Atmos Energy Corporation

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 3,155 shares of Atmos Energy Corporation (US:ATO) valued at $582,792 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,287 shares of Atmos Energy Corporation. The current value of the position is $530,986 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-06 2026-03-31 13F ATMOS ENERGY SC 049560105 3,155 868 37.95 1 0.0009
2026-02-05 2025-12-31 13F ATMOS ENERGY SC 049560105 2,287 532 30.31 0 0.0006
2025-11-05 2025-09-30 13F ATMOS ENERGY SC 049560105 1,755 175 11.08 0 0.0005
2025-08-01 2025-06-30 13F ATMOS ENERGY SC 049560105 1,580 -8,644 -84.55 0 -100.00 0.0004
2025-04-23 2025-03-31 13F ATMOS ENERGY SC 049560105 10,224 -14,517 -58.68 2 -66.67 0.0028
2025-02-13 2024-12-31 13F ATMOS ENERGY SC 049560105 24,741 39 0.16 3 0.00 0.0056
2024-11-12 2024-09-30 13F ATMOS ENERGY SC 049560105 24,702 23,500 1,955.07 3 0.0056
2024-08-13 2024-06-30 13F ATMOS ENERGY SC 049560105 1,202 -152 -11.23 0 0.0002
2024-08-13 2024-03-31 13F/A-1 ATMOS ENERGY SC 049560105 1,354 -122 -8.27 0 0.0003
2024-05-13 2024-03-31 13F ATMOS ENERGY SC 049560105 1,354 -122 0 0.0003
2024-02-09 2023-12-31 13F ATMOS ENERGY SC 049560105 1,476 793 116.11 0 0.0003
2023-11-13 2023-09-30 13F ATMOS ENERGY SC 049560105 683 -113 -14.20 0 0.0002
2023-08-10 2023-06-30 13F ATMOS ENERGY SC 049560105 796 427 115.72 0 0.0002
2023-05-10 2023-03-31 13F ATMOS ENERGY SC 049560105 369 81 28.12 0 0.0001
2023-02-13 2022-12-31 13F ATMOS ENERGY SC 049560105 288 -345 -54.50 0 -100.00 0.0001
2022-11-09 2022-09-30 13F ATMOS ENERGY SC 049560105 633 400 171.67 65 150.00 0.0002
2022-08-10 2022-06-30 13F ATMOS ENERGY SC 049560105 233 12 5.43 26 0.00 0.0001
2022-05-12 2022-03-31 13F ATMOS ENERGY SC 049560105 221 15 7.28 26 18.18 0.0001
2022-01-27 2021-12-31 13F ATMOS ENERGY SC 049560105 206 69 50.36 22 83.33 0.0000
2021-11-12 2021-09-30 13F ATMOS ENERGY SC 049560105 137 35 34.31 12 20.00 0.0000
2021-08-06 2021-06-30 13F ATMOS ENERGY SC 049560105 102 5 5.15 10 0.00 0.0000
2021-05-13 2021-03-31 13F ATMOS ENERGY SC 049560105 97 -337 -77.65 10 -75.61 0.0000
2021-02-09 2020-12-31 13F ATMOS ENERGY SC 049560105 434 99 29.55 41 28.13 0.0001
2020-11-12 2020-09-30 13F ATMOS ENERGY SC 049560105 335 115 52.27 32 45.45 0.0001
2020-08-05 2020-06-30 13F ATMOS ENERGY SC 049560105 220 -59 -21.15 22 -21.43 0.0001
2020-04-30 2020-03-31 13F ATMOS ENERGY SC 049560105 279 279 28 0.0001
2020-02-04 2019-12-31 13F ATMOS ENERGY SC 049560105 0 -13,117 -100.00 0 -100.00
2019-11-07 2019-09-30 13F ATMOS ENERGY SC 049560105 13,117 327 2.56 1,494 10.67 0.0053
2019-07-19 2019-06-30 13F ATMOS ENERGY SC 049560105 12,790 0 0.00 1,350 2.58 0.0045
2019-05-13 2019-03-31 13F ATMOS ENERGY SC 049560105 12,790 -155 -1.20 1,316 9.67 0.0051
2019-05-21 2018-12-31 13F/A-1 ATMOS ENERGY SC 049560105 12,945 12,813 9,706.82 1,200 9,900.00 0.0052
2019-02-12 2018-12-31 13F ATMOS ENERGY SC 049560105 12,945 12,813 1,200 0.0052
2018-11-06 2018-09-30 13F ATMOS ENERGY SC 049560105 132 132 12 0.0000
2018-07-25 2018-06-30 13F ATMOS ENERGY SC 049560105 0 -16 -100.00 0 -100.00
2018-05-10 2018-03-31 13F ATMOS ENERGY SC 049560105 16 16 1 0.0000
2017-11-03 2017-09-30 13F ATMOS ENERGY SC 049560105 0 -35 -100.00 0 -100.00
2017-07-27 2017-06-30 13F ATMOS ENERGY SC 049560105 35 -633 -94.76 3 -94.34 0.0000
2017-05-12 2017-03-31 13F ATMOS ENERGY SC 049560105 668 0 0.00 53 6.00 0.0002
2017-02-07 2016-12-31 13F ATMOS ENERGY SC 049560105 668 0 0.00 50 0.00 0.0002
2016-11-10 2016-09-30 13F ATMOS ENERGY SC 049560105 668 -1,433 -68.21 50 -70.59 0.0003
2016-08-11 2016-06-30 13F ATMOS ENERGY SC 049560105 2,101 579 38.04 170 50.44 0.0009
2016-05-11 2016-03-31 13F ATMOS ENERGY SC 049560105 1,522 967 174.23 113 222.86 0.0006
2016-02-12 2015-12-31 13F ATMOS ENERGY SC 049560105 555 -108 -16.29 35 -10.26 0.0002
2015-11-16 2015-09-30 13F ATMOS ENERGY SC 049560105 663 143 27.50 39 44.44 0.0002
2015-08-14 2015-06-30 13F ATMOS ENERGY SC 049560105 520 -113 -17.85 27 -22.86 0.0001
2015-06-18 2015-03-31 13F/A-1 ATMOS ENERGY SC 049560105 633 0 0.00 35 0.00 0.0002
2015-05-14 2015-03-31 13F ATMOS ENERGY SC 049560105 633 35
2015-02-17 2014-12-31 13F ATMOS ENERGY SC 049560105 633 113 21.73 35 40.00 0.0002
2014-12-11 2014-09-30 13F/A-1 ATMOS ENERGY SC 049560105 520 -9,350 -94.73 25 -95.26 0.0001
2014-11-13 2014-09-30 13F ATMOS ENERGY SC 049560105 520 -9,350 25 0.0002
2014-08-13 2014-06-30 13F ATMOS ENERGY SC 049560105 9,870 520 5.56 527 19.50 0.0032
2014-05-14 2014-03-31 13F ATMOS ENERGY SC 049560105 9,350 0 0.00 441 3.76 0.0030
2014-02-18 2013-12-31 13F ATMOS ENERGY SC 049560105 9,350 0 0.00 425 6.78 0.0030
2013-11-08 2013-09-30 13F ATMOS ENERGY SC 049560105 9,350 0 0.00 398 3.65 0.0032
2013-08-14 2013-06-30 13F ATMOS ENERGY SC 049560105 9,350 9,350 384 0.0034
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.