Atmos Energy Corporation
US ˙ NYSE ˙ US0495601058

SecurityATO / Atmos Energy Corporation
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership102,512 shares
Latest Disclosed Value $ 18,936,016
Macquarie Group Ltd reports 3.38% decrease in ownership of ATO / Atmos Energy Corporation

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 102,512 shares of Atmos Energy Corporation (US:ATO) valued at $18,936,017 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 106,103 shares of Atmos Energy Corporation. This represents a change in shares of -3.38% during the quarter. The current value of the position is $17,252,770 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)
2026-05-15 2026-03-31 13F ATMOS ENERGY COM 049560105 102,512 -3,591 -3.38 18,936 6.47 0.0882
2026-02-13 2025-12-31 13F ATMOS ENERGY COM 049560105 106,103 4,072 3.99 17,786 2.10 0.0777
2025-11-13 2025-09-30 13F ATMOS ENERGY COM 049560105 102,031 3,176 3.21 17,422 14.36 0.0203
2025-08-14 2025-06-30 13F ATMOS ENERGY COM 049560105 98,855 1,993 2.06 15,235 1.75 0.0187
2025-08-14 2025-03-31 13F/A-1 ATMOS ENERGY COM 049560105 96,862 -10,682 -9.93 14,973 5.87 0.0186
2025-05-15 2025-03-31 13F ATMOS ENERGY COM 049560105 96,862 -10,682 13,590 0.0111
2025-02-14 2024-12-31 13F ATMOS ENERGY COM 049560105 107,544 -9,866 -8.40 14,142 -13.16 0.0172
2024-11-14 2024-09-30 13F ATMOS ENERGY COM 049560105 117,410 1,332 1.15 16,286 20.27 0.0176
2024-08-09 2024-06-30 13F ATMOS ENERGY COM 049560105 116,078 933 0.81 13,540 -1.07 0.0155
2024-05-14 2024-03-31 13F ATMOS ENERGY COM 049560105 115,145 620 0.54 13,687 3.12 0.0155
2024-02-14 2023-12-31 13F ATMOS ENERGY COM 049560105 114,525 -53,846 -31.98 13,274 -25.58 0.0153
2023-11-14 2023-09-30 13F ATMOS ENERGY COM 049560105 168,371 10,560 6.69 17,835 -2.85 0.0224
2023-10-27 2023-06-30 13F/A-2 ATMOS ENERGY COM 049560105 157,811 -16,810 -9.63 18,360 -6.43 0.0210
2023-10-12 2023-06-30 13F/A-1 ATMOS ENERGY COM 049560105 157,811 -16,810 18,360 0.0185
2023-08-14 2023-06-30 13F ATMOS ENERGY COM 049560105 157,811 -16,810 18,360 0.0186
2023-06-01 2023-03-31 13F/A-1 ATMOS ENERGY COM 049560105 174,621 -15,577 -8.19 19,620 -7.57 0.0233
2023-05-15 2023-03-31 13F ATMOS ENERGY COM 049560105 174,621 -15,577 19,620 0.0180
2023-02-21 2022-12-31 13F ATMOS ENERGY COM 049560105 190,198 14,567 8.29 21,226 16.54 0.0251
2022-11-14 2022-09-30 13F ATMOS ENERGY COM 049560105 175,631 -62,076 -26.11 18,213 -33.45 0.0223
2022-08-17 2022-06-30 13F/A-1 ATMOS ENERGY COM 049560105 237,707 -212,972 -47.26 27,367 -31.90 0.0307
2022-08-15 2022-06-30 13F ATMOS ENERGY COM 049560105 237,707 -212,972 27,367 0.0098
2022-05-16 2022-03-31 13F ATMOS ENERGY COM 049560105 450,679 -85,195 -15.90 40,189 -28.46 0.0306
2022-02-11 2021-12-31 13F Atmos Energy COM 049560105 535,874 115,942 27.61 56,180 51.68 0.0468
2021-11-12 2021-09-30 13F ATMOS ENERGY COM 049560105 419,932 23,212 5.85 37,039 -2.86 0.0316
2021-08-13 2021-06-30 13F ATMOS ENERGY COM 049560105 396,720 21,179 5.64 38,128 2.71 0.0313
2021-05-14 2021-03-31 13F ATMOS ENERGY COM 049560105 375,541 38,694 11.49 37,122 15.48 0.0525
2021-02-16 2020-12-31 13F ATMOS ENERGY COM 049560105 336,847 76,044 29.16 32,145 28.95 0.0469
2020-11-13 2020-09-30 13F ATMOS ENERGY COM 049560105 260,803 -72,152 -21.67 24,929 -24.81 0.0422
2020-08-11 2020-06-30 13F ATMOS ENERGY COM 049560105 332,955 27,734 9.09 33,156 9.47 0.0571
2020-05-15 2020-03-31 13F ATMOS ENERGY COM 049560105 305,221 -327,729 -51.78 30,287 -57.22 0.0622
2020-03-18 2019-12-31 13F/A-2 ATMOS ENERGY COM 049560105 632,950 267,350 73.13 70,802 70.04 0.1011
2020-02-28 2019-12-31 13F/A-1 ATMOS ENERGY COM 049560105 345,575 -287,375 38,656 0.0558
2020-02-14 2019-12-31 13F ATMOS ENERGY COM 049560105 632,950 267,350 70,802 88,850.5097
2019-11-14 2019-09-30 13F ATMOS ENERGY COM 049560105 365,600 900 0.25 41,638 8.16 0.0698
2019-11-06 2019-06-30 13F/A-2 ATMOS ENERGY COM 049560105 364,700 46,000 14.43 38,498 17.36 0.0649
2019-09-24 2019-06-30 13F/A-1 ATMOS ENERGY COM 049560105 364,700 0 38,498 0.0655
2019-08-14 2019-06-30 13F ATMOS ENERGY COM 049560105 372,500 53,800 39,321
2019-05-15 2019-03-31 13F ATMOS ENERGY COM 049560105 318,700 221,800 228.90 32,804 265.10 0.0560
2019-02-15 2018-12-31 13F ATMOS ENERGY COM 049560105 96,900 -2,200 -2.22 8,985 -3.45 0.0174
2018-11-15 2018-09-30 13F ATMOS ENERGY COM 049560105 99,100 -100 -0.10 9,306 4.08 0.0152
2019-03-21 2018-06-30 13F/A-1 ATMOS ENERGY COM 049560105 99,200 -3,100 -3.03 8,941 3.75 0.0154
2018-08-14 2018-06-30 13F AUTOMATIC DATA PROCESSING IN COM 049560105 99,200 -3,100 8,941
2018-05-11 2018-03-31 13F ATMOS ENERGY COM 049560105 102,300 -6,600 -6.06 8,618 18.27 0.0157
2018-02-14 2017-12-31 13F ATMOS ENERGY COM 049560105 108,900 79,535 270.85 7,287 195.98 0.0129
2017-11-08 2017-09-30 13F ATMOS ENERGY COM 049560105 29,365 -135 -0.46 2,462 0.61 0.0044
2017-08-14 2017-06-30 13F ATMOS ENERGY COM 049560105 29,500 -5,800 -16.43 2,447 -12.23 0.0045
2017-05-15 2017-03-31 13F Atmos Energy COM 049560105 35,300 5,900 20.07 2,788 27.89 0.0051
2017-03-30 2016-12-31 13F/A-1 Atmos Energy Common Stock 049560105 29,400 -88,400 -75.04 2,180 -75.15 0.0042
2017-02-15 2016-12-31 13F Atmos Energy Common Stock 049560105 29,400 2,180
2016-11-15 2016-09-30 13F Atmos Energy Common Stock 049560105 117,800 -3,800 -3.12 8,773 -11.28 0.0169
2016-09-14 2016-06-30 13F/A-1 Atmos Energy Common Stock 049560105 121,600 -111,600 -47.86 9,888 -42.90 0.0194
2016-08-15 2016-06-30 13F Atmos Energy Common Stock 049560105 121,600 9,888
2016-05-16 2016-03-31 13F Atmos Energy Common Stock 049560105 233,200 -107,200 -31.49 17,317 -19.30 0.0349
2016-02-16 2015-12-31 13F Atmos Energy Common Stock 049560105 340,400 -77,200 -18.49 21,459 -11.68 0.0441
2015-11-16 2015-09-30 13F Atmos Energy Common Stock 049560105 417,600 388,100 1,315.59 24,296 1,505.82 0.0521
2015-08-21 2015-06-30 13F/A-1 Atmos Energy Common Stock 049560105 29,500 0 0.00 1,513 -7.23 0.0030
2015-08-14 2015-06-30 13F Atmos Energy Common Stock 049560105 29,500 1,513
2015-05-18 2015-03-31 13F Atmos Energy Common Stock 049560105 29,500 29,500 1,631 0.0032
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.