ATO Atmos Energy Corporation
Atmos Energy Corporation (ATO) Institutional Ownership
What the institutions did with ATO last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 15.2M | 9.3% |
| STATE STREET CORP | 11.4M | 7.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 10.9M | 6.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 9.4M | 5.7% |
| WELLINGTON MANAGEMENT GROUP LLP | 9.2M | 5.6% |
| Capital International Investors | 7.5M | 4.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 4.5M | 2.8% |
| BANK OF AMERICA CORP /DE/ | 4.2M | 2.6% |
| Invesco Ltd. | 3.2M | 1.9% |
| MORGAN STANLEY | 2.9M | 1.8% |
| DEUTSCHE BANK AG\ | 2.5M | 1.5% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.5M | 1.5% |
| AQR CAPITAL MANAGEMENT LLC | 2.4M | 1.5% |
| GOLDMAN SACHS GROUP INC | 2.2M | 1.3% |
| Qube Research & Technologies Ltd | 2.1M | 1.3% |
| NORGES BANK | 2.1M | 1.3% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.8M | 1.1% |
| Amundi | 1.8M | 1.1% |
| CITADEL ADVISORS LLC | 1.7M | 1.1% |
| Legal & General Group Plc | 1.6M | 1.0% |
| Capital Research Global Investors | 1.5M | 0.9% |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1.5M | 0.9% |
| NORTHERN TRUST CORP | 1.4M | 0.9% |
| Point72 Asset Management, L.P. | 1.4M | 0.8% |
| RAYMOND JAMES FINANCIAL INC | 1.3M | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Aristotle Capital Management, LLC | Reduced | 4.9M | 33.9K | -4.8M |
| Capital Research Global Investors | Reduced | 4.0M | 1.5M | -2.5M |
| BlackRock, Inc. | Reduced | 17.5M | 15.2M | -2.2M |
| Qube Research & Technologies Ltd | Increased | 82.6K | 2.1M | +2.1M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 822.8K | 2.4M | +1.6M |
| Point72 Asset Management, L.P. | New | 0 | 1.4M | +1.4M |
| CITADEL ADVISORS LLC | Increased | 751.6K | 1.7M | +984.8K |
| SG Americas Securities, LLC | Increased | 70.9K | 739.9K | +669.1K |
| ONTARIO TEACHERS PENSION PLAN BOARD | New | 0 | 586.2K | +586.2K |
| FMR LLC | Increased | 125.5K | 660.4K | +534.9K |
| Amundi | Increased | 1.3M | 1.8M | +520.8K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 9.7M | 9.2M | -465.7K |
| JANE STREET GROUP, LLC | Increased | 11.8K | 396.7K | +384.9K |
| SEI INVESTMENTS CO | Reduced | 512.8K | 192.5K | -320.4K |
| Assenagon Asset Management S.A. | Increased | 38.4K | 329.7K | +291.3K |
| GQG Partners LLC | Increased | 887.2K | 1.2M | +287.9K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 166.8K | 447.9K | +281.1K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Reduced | 473.8K | 193.1K | -280.7K |
| T. Rowe Price Investment Management, Inc. | Reduced | 358.7K | 114.8K | -243.9K |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC | Increased | 758.0K | 999.6K | +241.6K |
| JPMORGAN CHASE & CO | Reduced | 796.2K | 560.8K | -235.4K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 2.7M | 2.5M | -233.5K |
| ROYAL BANK OF CANADA | Reduced | 503.9K | 270.8K | -233.1K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 6.4K | 237.1K | +230.7K |
| GOLDMAN SACHS GROUP INC | Increased | 1.9M | 2.2M | +230.6K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 834.7K | 608.9K | -225.8K |
| TORONTO DOMINION BANK | Reduced | 309.5K | 110.1K | -199.4K |
| Balyasny Asset Management L.P. | Increased | 2.5K | 192.6K | +190.1K |
| DEARBORN PARTNERS LLC | Increased | 188.3K | 376.6K | +188.3K |
| Invesco Ltd. | Increased | 3.0M | 3.2M | +166.5K |
| COHEN & STEERS, INC. | Reduced | 800.2K | 641.3K | -158.9K |
| NORTHERN TRUST CORP | Reduced | 1.5M | 1.4M | -156.4K |
| Capital International Investors | Increased | 7.3M | 7.5M | +156.2K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 4.3M | 4.5M | +152.3K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 10.7M | 10.9M | +149.6K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | 0 | 148.8K | +148.8K |
| TUDOR INVESTMENT CORP ET AL | Increased | 47.0K | 192.5K | +145.5K |
| MARSHALL WACE, LLP | New | 0 | 138.6K | +138.6K |
| MORGAN STANLEY | Reduced | 3.0M | 2.9M | -137.5K |
| D. E. Shaw & Co., Inc. | New | 0 | 126.3K | +126.3K |
| WELLS FARGO & COMPANY/MN | Reduced | 1.3M | 1.2M | -125.0K |
| WORLDQUANT MILLENNIUM ADVISORS LLC | Increased | 68.1K | 191.6K | +123.5K |
| Trexquant Investment LP | Increased | 15.5K | 132.7K | +117.2K |
| FIL Ltd | Increased | 1.2K | 115.0K | +113.8K |
| BARCLAYS PLC | Reduced | 373.3K | 260.2K | -113.1K |
| LAZARD ASSET MANAGEMENT LLC | Increased | 81.9K | 193.2K | +111.4K |
| HSBC HOLDINGS PLC | Reduced | 780.2K | 672.8K | -107.3K |
| Perpetual Ltd | Reduced | 1.2M | 1.1M | -107.1K |
| Schonfeld Strategic Advisors LLC | Increased | 10.5K | 112.6K | +102.1K |
| PFA Pension, Forsikringsaktieselskab | Reduced | 668.0K | 566.0K | -102.1K |
| Squarepoint Ops LLC | Increased | 39.2K | 138.4K | +99.2K |
| BAHL & GAYNOR INC | Reduced | 335.8K | 236.7K | -99.1K |
| ProShare Advisors LLC | Reduced | 1.0M | 924.8K | -99.0K |
| CANADA PENSION PLAN INVESTMENT BOARD | Reduced | 135.7K | 39.6K | -96.1K |
| Pictet Asset Management Holding SA | Increased | 1.2M | 1.3M | +95.0K |
| Quantinno Capital Management LP | Increased | 174.8K | 268.8K | +93.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 90.0K | 183.1K | +93.1K |
| Tredje AP-fonden | Increased | 95.3K | 177.5K | +82.2K |
| California Public Employees Retirement System | Reduced | 290.8K | 209.6K | -81.3K |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 507.4K | 427.0K | -80.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.