| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 9.4M | $1.61B | +0.8% | 5.608% | 0.07% |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | 9.2M | $1.58B | -4.8% | 5.503% | 0.27% |
| 6 | Capital International Investors | 7.5M | $1.29B | +2.1% | 4.483% | 0.27% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 4.5M | $770.3M | +3.5% | 2.689% | 0.04% |
| 8 | BANK OF AMERICA CORP /DE/ | 4.2M | $720.2M | -0.4% | 2.505% | 0.05% |
| 9 | Invesco Ltd. | 3.2M | $546.7M | +5.5% | 1.901% | 0.04% |
| 10 | MORGAN STANLEY | 2.9M | $493.3M | -4.6% | 1.716% | 0.03% |
| 11 | DEUTSCHE BANK AG\ | 2.5M | $431.7M | -1.6% | 1.501% | 0.13% |
| 12 | AQR CAPITAL MANAGEMENT LLC | 2.4M | $409.0M | +188.5% | 1.422% | 0.14% |
| 13 | GOLDMAN SACHS GROUP INC | 2.2M | $373.1M | +11.9% | 1.298% | 0.03% |
| 14 | Qube Research & Technologies Ltd | 2.1M | $368.1M | +2485.6% | 1.280% | 0.34% |
| 15 | NORGES BANK | 2.1M | $358.2M | β | 1.246% | 0.04% |
| 16 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.8M | $321.4M | +4.0% | 1.104% | 0.10% |
| 17 | Amundi | 1.8M | $314.2M | +40.0% | 1.093% | 0.08% |
| 18 | CITADEL ADVISORS LLC | 1.8M | $304.4M | +125.4% | 1.058% | 0.02% |
| 19 | Legal & General Group Plc | 1.6M | $276.6M | -0.7% | 0.962% | 0.06% |
| 20 | Capital Research Global Investors | 1.5M | $259.9M | -62.4% | 0.904% | 0.04% |
| 21 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | 1.5M | $256.9M | +0.1% | 0.894% | 0.20% |
| 22 | NORTHERN TRUST CORP | 1.4M | $240.0M | -10.1% | 0.835% | 0.03% |
| 23 | Point72 Asset Management, L.P. | 1.4M | $234.5M | β | 0.816% | 0.26% |
| 24 | RAYMOND JAMES FINANCIAL INC | 1.3M | $219.0M | +5.4% | 0.762% | 0.06% |
| 25 | Pictet Asset Management Holding SA | 1.3M | $218.9M | +8.1% | 0.761% | 0.21% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in ATO β a direct measure of their conviction.
| 99.55% |
| +0.30 pp |
| $22.34B |
| +12% |
| Q4 2024 | 792 | +8.0% | 99.25% | +3.02 pp | $19.95B | +7.3% |
| Q3 2024 | 733 | β | 96.23% | β | $18.59B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
120 institutions opened new positions in ATO during Q2 2026, while 93 fully exited. 247 added to existing positions and 646 trimmed.
ATO institutional ownership rose by 0.42 percentage points quarter-over-quarter, with a net change of +35 holders.
The top 10 institutions account for 49.7% of all reported 13F value in ATO, and the top 25 account for 66.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Atmos Energy Corporation (ATO) Institutional Ownership