Atmos Energy Corporation
MX ˙ BMV ˙ US0495601058
SecurityMX:ATO / Atmos Energy Corporation
InstitutionCIBC Asset Management Inc
Latest Disclosed Ownership158,206 shares
Latest Disclosed Value $ 29,200,304
CIBC Asset Management Inc reports 3.39% increase in ownership of ATO / Atmos Energy Corporation

On May 12, 2026 - CIBC Asset Management Inc filed a 13F-HR form disclosing ownership of 158,206 shares of Atmos Energy Corporation (MX:ATO) valued at $29,200,304 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 153,013 shares of Atmos Energy Corporation. This represents a change in shares of 3.39% during the quarter.

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)
2026-05-12 2026-03-31 13F ATMOS ENERGY COM 049560105 158,206 5,193 3.39 29,200 13.93 0.0714
2026-02-10 2025-12-31 13F ATMOS ENERGY COM 049560105 153,013 15,614 11.36 25,630 9.34 0.0619
2025-10-31 2025-09-30 13F ATMOS ENERGY COM 049560105 137,399 1,955 1.44 23,440 12.30 0.0679
2025-08-14 2025-06-30 13F ATMOS ENERGY COM 049560105 135,444 20,193 17.52 20,873 17.28 0.0645
2025-05-13 2025-03-31 13F ATMOS ENERGY COM 049560105 115,251 51,515 80.83 17,798 100.82 0.0591
2025-01-31 2024-12-31 13F ATMOS ENERGY COM 049560105 63,736 1,233 1.97 8,862 2.23 0.0290
2024-11-06 2024-09-30 13F ATMOS ENERGY COM 049560105 62,503 1,092 1.78 8,670 21.02 0.0281
2024-08-01 2024-06-30 13F ATMOS ENERGY COM 049560105 61,411 -2,466 -3.86 7,164 -5.66 0.0255
2024-05-09 2024-03-31 13F ATMOS ENERGY COM 049560105 63,877 819 1.30 7,593 3.90 0.0263
2024-02-13 2023-12-31 13F ATMOS ENERGY COM 049560105 63,058 36,409 136.62 7,308 158.97 0.0273
2023-10-30 2023-09-30 13F ATMOS ENERGY COM 049560105 26,649 543 2.08 2,823 -7.08 0.0117
2023-08-14 2023-06-30 13F ATMOS ENERGY COM 049560105 26,106 877 3.48 3,037 7.16 0.0116
2023-05-12 2023-03-31 13F ATMOS ENERGY COM 049560105 25,229 719 2.93 2,835 3.20 0.0112
2023-02-13 2022-12-31 13F ATMOS ENERGY COM 049560105 24,510 716 3.01 2,747 13.33 0.0115
2022-11-03 2022-09-30 13F ATMOS ENERGY COM 049560105 23,794 7,476 45.81 2,423 32.48 0.0106
2022-08-09 2022-06-30 13F ATMOS ENERGY COM 049560105 16,318 -8,595 -34.50 1,829 -38.56 0.0074
2022-05-06 2022-03-31 13F ATMOS ENERGY COM 049560105 24,913 12,293 97.41 2,977 125.19 0.0105
2022-02-08 2021-12-31 13F ATMOS ENERGY COM 049560105 12,620 1,611 14.63 1,322 36.15 0.0048
2021-11-09 2021-09-30 13F ATMOS ENERGY COM 049560105 11,009 -22 -0.20 971 -8.40 0.0039
2021-08-16 2021-06-30 13F ATMOS ENERGY COM 049560105 11,031 80 0.73 1,060 -2.12 0.0043
2021-05-14 2021-03-31 13F ATMOS ENERGY COM 049560105 10,951 -13,829 -55.81 1,083 -54.21 0.0046
2021-02-03 2020-12-31 13F ATMOS ENERGY COM 049560105 24,780 1,056 4.45 2,365 4.28 0.0111
2020-11-05 2020-09-30 13F ATMOS ENERGY COM 049560105 23,724 3,257 15.91 2,268 11.29 0.0116
2020-07-28 2020-06-30 13F ATMOS ENERGY COM 049560105 20,467 -54,213 -72.59 2,038 -72.50 0.0120
2020-04-30 2020-03-31 13F ATMOS ENERGY COM 049560105 74,680 54,014 261.37 7,410 220.50 0.0524
2020-02-14 2019-12-31 13F ATMOS ENERGY COM 049560105 20,666 3,343 19.30 2,312 17.18 0.0131
2019-10-30 2019-09-30 13F ATMOS ENERGY COM 049560105 17,323 185 1.08 1,973 9.07 0.0116
2019-08-05 2019-06-30 13F ATMOS ENERGY COM 049560105 17,138 820 5.03 1,809 7.68 0.0108
2019-05-06 2019-03-31 13F ATMOS ENERGY COM 049560105 16,318 12,510 328.52 1,680 375.92 0.0104
2019-02-12 2018-12-31 13F ATMOS ENERGY COM 049560105 3,808 0 0.00 353 -1.40 0.0026
2018-11-02 2018-09-30 13F ATMOS ENERGY COM 049560105 3,808 0 0.00 358 4.37 0.0022
2018-08-09 2018-06-30 13F ATMOS ENERGY COM 049560105 3,808 354 10.25 343 17.87 0.0021
2018-04-30 2018-03-31 13F ATMOS ENERGY COM 049560105 3,454 0 0.00 291 -2.02 0.0019
2018-02-02 2017-12-31 13F ATMOS ENERGY COM 049560105 3,454 0 0.00 297 2.41 0.0018
2017-11-06 2017-09-30 13F ATMOS ENERGY COM 049560105 3,454 361 11.67 290 12.84 0.0018
2017-07-27 2017-06-30 13F ATMOS ENERGY COM 049560105 3,093 0 0.00 257 5.33 0.0018
2017-05-12 2017-03-31 13F ATMOS ENERGY COM 049560105 3,093 0 0.00 244 6.55 0.0017
2017-02-08 2016-12-31 13F ATMOS ENERGY COM 049560105 3,093 0 0.00 229 -0.43 0.0016
2016-10-19 2016-09-30 13F ATMOS ENERGY COM 049560105 3,093 0 0.00 230 -8.73 0.0017
2016-08-02 2016-06-30 13F ATMOS ENERGY COM 049560105 3,093 0 0.00 252 9.57 0.0019
2016-05-09 2016-03-31 13F ATMOS ENERGY COM 049560105 3,093 3,093 230 0.0017
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.