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.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 33.3M | 17.0% |
| BlackRock, Inc. | 15.2M | 7.8% |
| STATE STREET CORP | 11.4M | 5.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 10.9M | 5.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 9.4M | 4.8% |
| WELLINGTON MANAGEMENT GROUP LLP | 9.2M | 4.7% |
| Capital International Investors | 7.5M | 3.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 4.5M | 2.3% |
| BANK OF AMERICA CORP /DE/ | 4.2M | 2.1% |
| Invesco Ltd. | 3.2M | 1.6% |
| MORGAN STANLEY | 2.9M | 1.5% |
| DEUTSCHE BANK AG\ | 2.5M | 1.3% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.5M | 1.3% |
| AQR CAPITAL MANAGEMENT LLC | 2.4M | 1.2% |
| GOLDMAN SACHS GROUP INC | 2.2M | 1.1% |
| Qube Research & Technologies Ltd | 2.1M | 1.1% |
| NORGES BANK | 2.1M | 1.1% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.8M | 0.9% |
| Amundi | 1.8M | 0.9% |
| CITADEL ADVISORS LLC | 1.7M | 0.9% |
| Legal & General Group Plc | 1.6M | 0.8% |
| Capital Research Global Investors | 1.5M | 0.8% |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1.5M | 0.8% |
| NORTHERN TRUST CORP | 1.4M | 0.7% |
| Point72 Asset Management, L.P. | 1.4M | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 473.8K | 33.3M | +32.8M |
| 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 |
| 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 |
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.