Atmos Energy Corporation
US ˙ NYSE ˙ US0495601058

SecurityATO / Atmos Energy Corporation
InstitutionPerpetual Ltd
Latest Disclosed Ownership1,240,469 shares
Latest Disclosed Value $ 229,139,434
Perpetual Ltd reports 11.29% decrease in ownership of ATO / Atmos Energy Corporation

On April 14, 2026 - Perpetual Ltd filed a 13F-HR form disclosing ownership of 1,240,469 shares of Atmos Energy Corporation (US:ATO) valued at $229,139,434 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 1,398,334 shares of Atmos Energy Corporation. This represents a change in shares of -11.29% during the quarter. The current value of the position is $208,349,173 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)
2026-04-14 2026-03-31 13F ATMOS ENERGY COM 049560105 1,240,469 -157,865 -11.29 229,139 -2.25 3.5143
2026-01-20 2025-12-31 13F ATMOS ENERGY COM 049560105 1,398,334 -85,031 -5.73 234,403 -7.45 3.3903
2025-10-10 2025-09-30 13F ATMOS ENERGY COM 049560105 1,483,365 71,857 5.09 253,285 16.44 3.1441
2025-07-11 2025-06-30 13F ATMOS ENERGY COM 049560105 1,411,508 -42,582 -2.93 217,527 -3.22 2.5531
2025-04-24 2025-03-31 13F ATMOS ENERGY COM 049560105 1,454,090 213,075 17.17 224,773 30.05 2.7146
2025-01-17 2024-12-31 13F ATMOS ENERGY COM 049560105 1,241,015 -297,398 -19.33 172,836 -19.01 2.0291
2024-10-09 2024-09-30 13F ATMOS ENERGY COM 049560105 1,538,413 -56,012 -3.51 213,393 14.73 2.3130
2024-07-30 2024-06-30 13F ATMOS ENERGY COM 049560105 1,594,425 182,728 12.94 185,990 10.83 2.0218
2024-04-16 2024-03-31 13F/A-1 ATMOS ENERGY COM 049560105 1,411,697 446,292 46.23 167,808 49.98 1.6402
2024-04-10 2024-03-31 13F ATMOS ENERGY COM 049560105 1,411,697 446,292 167,808 1.0405
2024-02-15 2023-12-31 13F ATMOS ENERGY COM 049560105 965,405 -138,131 -12.52 111,890 -4.28 1.1544
2023-10-10 2023-09-30 13F ATMOS ENERGY COM 049560105 1,103,536 -64,866 -5.55 116,898 -14.00 1.2077
2023-07-13 2023-06-30 13F ATMOS ENERGY COM 049560105 1,168,402 29,733 2.61 135,932 6.25 1.1656
2023-05-08 2023-03-31 13F ATMOS ENERGY COM 049560105 1,138,669 1,138,669 127,941 1.1069
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.