Atmos Energy Corporation
MX ˙ BMV ˙ US0495601058
SecurityMX:ATO / Atmos Energy Corporation
InstitutionCigna Investments Inc /new
Latest Disclosed Ownership1,567 shares
Latest Disclosed Value $ 290
Cigna Investments Inc /new ownership in ATO / Atmos Energy Corporation

On May 11, 2026 - Cigna Investments Inc /new filed a 13F-HR form disclosing ownership of 1,567 shares of Atmos Energy Corporation (MX:ATO) valued at $290 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 1,567 shares of Atmos Energy Corporation.

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)
2026-05-11 2026-03-31 13F ATMOS ENERGY Common Stock 049560105 1,567 0 0.00 0 0.0446
2026-01-20 2025-12-31 13F ATMOS ENERGY Common Stock 049560105 1,567 0 0.00 0 0.0379
2025-10-22 2025-09-30 13F ATMOS ENERGY Common Stock 049560105 1,567 0 0.00 0 0.0376
2025-07-15 2025-06-30 13F ATMOS ENERGY Common Stock 049560105 1,567 0 0.00 0 0.0410
2025-05-15 2025-03-31 13F ATMOS ENERGY Common Stock 049560105 1,567 0 0.00 0 0.0450
2025-01-29 2024-12-31 13F ATMOS ENERGY Common Stock 049560105 1,567 0 0.00 0 0.0381
2024-10-28 2024-09-30 13F ATMOS ENERGY Common Stock 049560105 1,567 1,567 0 0.0382
2022-08-15 2022-06-30 13F ATMOS ENERGY Common Stock 049560105 0 -2,363 -100.00 0 0.0000
2022-05-13 2022-03-31 13F ATMOS ENERGY Common Stock 049560105 2,363 -627 -20.97 0 0.0346
2022-02-14 2021-12-31 13F ATMOS ENERGY Common Stock 049560105 2,990 -950 -24.11 0 0.0245
2021-11-12 2021-09-30 13F ATMOS ENERGY Common Stock 049560105 3,940 -100 -2.48 0 0.0258
2021-08-10 2021-06-30 13F ATMOS ENERGY Common Stock 049560105 4,040 -529 -11.58 0 0.0277
2021-05-10 2021-03-31 13F ATMOS ENERGY Common Stock 049560105 4,569 282 6.58 0 0.0310
2021-02-11 2020-12-31 13F ATMOS ENERGY Common Stock 049560105 4,287 286 7.15 0 0.0316
2020-11-12 2020-09-30 13F ATMOS ENERGY Common Stock 049560105 4,001 -28 -0.69 0 -100.00 0.0368
2020-08-17 2020-06-30 13F ATMOS ENERGY Common Stock 049560105 4,029 612 17.91 401 18.29 0.0379
2020-05-11 2020-03-31 13F ATMOS ENERGY Common Stock 049560105 3,417 323 10.44 339 -6.61 0.0437
2020-02-04 2019-12-31 13F ATMOS ENERGY Common Stock 049560105 3,094 -442 -12.50 363 -9.02 0.0384
2019-11-07 2019-09-30 13F ATMOS ENERGY Common Stock 049560105 3,536 200 6.00 399 9.62 0.0412
2019-08-12 2019-06-30 13F ATMOS ENERGY Common Stock 049560105 3,336 -78 -2.28 364 3.70 0.0395
2019-05-10 2019-03-31 13F ATMOS ENERGY Common Stock 049560105 3,414 163 5.01 351 16.61 0.0388
2019-02-06 2018-12-31 13F ATMOS ENERGY Common Stock 049560105 3,251 127 4.07 301 3.44 0.0255
2018-11-13 2018-09-30 13F ATMOS ENERGY Common Stock 049560105 3,124 -396 -11.25 291 -8.49 0.0233
2018-08-14 2018-06-30 13F ATMOS ENERGY Common Stock 049560105 3,520 -639 -15.36 318 -9.14 0.0230
2018-05-09 2018-03-31 13F ATMOS ENERGY Common Stock 049560105 4,159 -9,614 -69.80 350 -70.44 0.0235
2018-01-26 2017-12-31 13F ATMOS ENERGY Common Stock 049560105 13,773 -1,681 -10.88 1,184 -8.64 0.0773
2017-10-11 2017-09-30 13F ATMOS ENERGY COM 049560105 15,454 0 0.00 1,296 1.09 0.0864
2017-08-01 2017-06-30 13F ATMOS ENERGY CORP 049560105 COM 049560105 15,454 11,241 266.82 1,282 284.98 0.0881
2017-05-15 2017-03-31 13F ATMOS ENERGY CORP 049560105 COM 049560105 4,213 421 11.10 333 18.51 0.0229
2017-02-15 2016-12-31 13F ATMOS ENERGY CORP 049560105 COM 049560105 3,792 3,792 281 0.0306
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.