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ATO — ATMOS ENERGY CORP

Reported value held$15.47B
Funds holding (latest)48
SectorUtilities

Index member: S&P 500

Funds holding (Q2 2026)45
Institutional value$11.95B · 71.82M sh
New / Add / Cut / Exit6 / 20 / 17 / 1
Top-5 / Top-10 concentration52.3% / 69.6%
Institutional holdings change Accumulating +5.6% (+3.79M sh)
Institutional value change Down -1.0%

As of Q2 2026, 45 SEC-registered investment managers reported holding ATO (ATMOS ENERGY CORP) in their latest 13F filings, with a combined reported value of $11.95B across 71.82M shares. That is +5.6% by share count (+3.79M shares) versus the previous quarter, while reported value moved -1.0%. Ownership is concentrated: the five largest holders account for 52.3% of reported value and the top ten for 69.6%.

Compared with the prior quarter, 6 opened new positions, 20 added to existing stakes, 17 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

ATO is a constituent of the S&P 500 and is classified in the Utilities sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
Vanguard Group history Q4 2025 21.03M $3.53B 0.05% Add
BlackRock Inc history Q2 2026 15.24M $2.62B 0.04% Reduce
Wellington Management Group history Q2 2026 9.19M $1.58B 0.29% Reduce
Geode Capital Management history Q2 2026 4.49M $770.33M 0.04% Add
Bank of America Corp history Q2 2026 4.18M $720.21M 0.05% Hold
Invesco Ltd history Q2 2026 3.17M $546.75M 0.05% Add
Morgan Stanley history Q2 2026 2.86M $493.33M 0.03% Reduce
Deutsche Bank AG history Q2 2026 2.51M $431.68M 0.13% Reduce
AQR Capital Management history Q2 2026 2.37M $408.95M 0.14% Add
Goldman Sachs Group history Q2 2026 2.17M $373.10M 0.03% Add
Norges Bank Investment Management history Q2 2026 2.08M $358.19M 0.04% Add
MFS Investment Management history Q2 2026 1.84M $321.41M 0.11% Add
Amundi US history Q2 2026 1.82M $314.17M 0.08% Add
Citadel Advisors history Q2 2026 1.77M $304.35M 0.04% Add
Legal & General Investment Management America history Q2 2026 1.61M $276.56M 0.06% Reduce
Capital Research Global Investors history Q2 2026 1.51M $259.89M 0.04% Reduce
Northern Trust Corp history Q2 2026 1.39M $240.02M 0.03% Reduce
Point72 Asset Management history Q2 2026 1.36M $234.49M 0.27% New
Wells Fargo & Co history Q2 2026 1.20M $207.47M 0.04% Reduce
Charles Schwab Investment Management history Q2 2026 1.06M $182.55M 0.02% Add

View all 48 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 13.57M 13.89M 14.15M 14.34M 14.56M 17.02M 17.45M 15.24M
Wellington Management Group 3.48K — — — 7.45M 8.49M 8.79M 8.54M 8.99M 10.03M 9.88M 12.40M 13.75M 13.13M 12.32M 11.38M 10.47M 10.01M 9.65M 9.19M
Geode Capital Management 2.42M 2.51M 2.70M 2.86M 2.95M 2.99M 3.09M 3.20M 3.35M 3.44M 3.63M 3.73M 3.70M 3.81M 4.01M 4.07M 4.14M 4.21M 4.34M 4.49M
Bank of America Corp 1.12M 907.53K 1.44M 1.45M 1.52M 1.48M 1.52M 1.35M 1.34M 1.53M 641.80K 1.55M 695.85K 1.71M 1.87M 3.65M 3.74M 3.78M 4.20M 4.18M
Invesco Ltd 2.79M 2.22M 2.76M 2.86M 2.90M 2.64M 2.19M 1.97M 2.00M 2.07M 2.88M 3.20M 2.88M 3.11M 2.99M 3.08M 3.10M 3.01M 3.01M 3.17M
Morgan Stanley 950.81K 1.10M 1.19M 1.57M 1.79M 1.94M 1.88M 1.87M 1.93M 2.00M 1.96M 2.03M 2.13M 2.05M 2.23M 2.50M 2.91M 2.76M 3.00M 2.86M
Deutsche Bank AG 2.96M 3.88M 4.28M 4.92M 4.91M 4.54M 4.21M 3.96M 3.38M 3.14M 3.09M 2.89M 3.02M 3.08M 2.89M 2.86M 2.84M 2.89M 2.55M 2.51M
AQR Capital Management 188.67K 157.31K 155.29K 174.13K 202.69K 230.47K 222.68K 210.74K 208.04K 222.38K 304.84K 444.27K 473.95K 330.39K 256.68K 446.75K 488.19K 506.62K 822.78K 2.37M
Goldman Sachs Group 933.05K 1.06M 912.75K 867.82K 833.09K 838.75K 841.81K 914.50K 824.76K 1.00M 1.41M 1.44M 796.81K 902.21K 808.99K 948.33K 1.31M 1.25M 1.94M 2.17M
Norges Bank Investment Management — — — — — 268.38K — — — 1.19M — 1.42M — 1.48M — 1.83M — 1.98M — 2.08M
MFS Investment Management 1.73M 1.75M — 1.47M 1.48M 1.27M 1.27M 1.29M 1.24M 1.48M 1.53M 1.55M 1.55M 1.54M 1.54M 1.90M 1.95M 1.98M 1.77M 1.84M
Amundi US 580.06K 641.15K 328.19K 426.39K 456.22K 599.87K 685.34K 539.69K 503.19K 753.18K 780.95K 735.94K 801.99K 818.99K 886.85K 465.91K 568.94K 870.74K 1.30M 1.82M
Citadel Advisors 60.72K 221.58K 451.92K 711.82K 841.40K 423.22K 499.40K 82.24K 50.96K 812.17K 1.07M 297.94K 423.46K 766.69K 413.94K 148.68K 194.52K 560.25K 783.90K 1.77M
Legal & General Investment Management America 1.92M 1.88M 1.88M 1.97M 1.75M 1.68M 1.69M 1.65M 1.62M 1.83M 1.85M 1.78M 1.80M 1.62M 1.68M 1.59M 1.58M 1.58M 1.62M 1.61M
Capital Research Global Investors — — — — — — — — — — — — — — — — — — 4.01M 1.51M
Northern Trust Corp 1.37M 1.38M 1.54M 1.60M 1.57M 1.59M 1.62M 1.53M 1.59M 1.51M 1.47M 1.45M 1.41M 1.64M 1.63M 1.55M 1.52M 1.51M 1.55M 1.39M
Point72 Asset Management — — — — — — — — — — 11.20K — — — — — — — — 1.36M
Wells Fargo & Co 1.43M 1.20M 1.30M 1.27M 1.15M 1.18M 1.19M 1.22M 1.20M 1.19M 1.32M 1.28M 1.26M 1.17M 1.13M 1.21M 1.28M 1.35M 1.33M 1.20M
Charles Schwab Investment Management 910.86K 952.40K 1.00M 1.04M 1.07M 1.10M 1.13M 1.14M 787.18K 805.14K 834.42K 851.39K 885.95K 915.70K 950.57K 960.47K 969.51K 980.84K 1.04M 1.06M
PNC Financial Services 22.72K 23.65K 43.97K 45.47K 48.42K 50.05K 43.20K 43.93K 43.93K 45.45K 652.87K 622.95K 636.66K 634.00K 644.39K 711.13K 769.47K 874.97K 886.29K 884.65K

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