Atmos Energy Corp
ATO- Exchange
- NYSE
- Industry
- Natural Gas Distribution
- SEC CIK
- 0000731802
In the last 90 days, Atmos Energy Corp insiders filed 1 open-market purchase and 0 sales; 1,044 institutions reported holding it in 13F filings for Q2 2026, worth $28.0B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Atmos Energy Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 980
- +81 vs. Q3 2025
- Shares held
- 162.1M
- +2.64M (+1.7%) vs. Q3 2025
- Total value
- $27.2B
- −$53.9M (−0.2%) vs. Q3 2025
- New holders
- 144
- 362 more added
- Sold out
- 63
- 307 more reduced
13 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,044 | $28.0B |
| Q1 2026 | 1,020 | $29.6B |
| Q4 2025 | 980 | $27.2B |
| Q3 2025 | 912 | $27.2B |
| Q2 2025 | 871 | $24.7B |
| Q1 2025 | 861 | $24.4B |
| Q4 2024 | 818 | $21.8B |
| Q3 2024 | 758 | $20.8B |
| Q2 2024 | 736 | $16.7B |
| Q1 2024 | 731 | $16.6B |
| Q4 2023 | 722 | $15.8B |
| Q3 2023 | 669 | $14.4B |
| Q2 2023 | 672 | $15.8B |
| Q1 2023 | 664 | $14.7B |
| Q4 2022 | 663 | $14.6B |
| Q3 2022 | 631 | $13.1B |
| Q2 2022 | 620 | $14.2B |
| Q1 2022 | 608 | $14.9B |
| Q4 2021 | 575 | $12.4B |
| Q3 2021 | 536 | $9.93B |
| Q2 2021 | 548 | $10.5B |
| Q1 2021 | 550 | $10.7B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fisher Funds Management LTD | 49,500 | $8.30M | 0.21% | 00.0% | Unchanged |
| Cerity Partners LLC | 50,696 | $8.50M | 0.01% | −12,465−19.7% | Reduced |
| Robeco Institutional Asset Management B.V. | 50,744 | $8.51M | 0.01% | +1,875+3.8% | Added |
| Teachers Retirement System of the State of Kentucky | 51,656 | $8.66M | 0.06% | −10,710−17.2% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 51,838 | $8.69M | 0.04% | −475−0.9% | Reduced |
| Renaissance Technologies LLC | 52,000 | $8.72M | 0.01% | −21,400−29.2% | Reduced |
| CIBC World Markets Corp | 52,230 | $8.76M | 0.04% | +52,230 | New |
| Arvest Bank Trust Division | 52,576 | $8.81M | 0.48% | −5,188−9.0% | Reduced |
| Ensign Peak Advisors, Inc | 53,427 | $8.96M | 0.02% | −58,931−52.4% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 55,815 | $9.36M | 0.24% | +3,427+6.5% | Added |
| Daiwa Securities Group Inc. | 56,093 | $9.40M | 0.03% | +885+1.6% | Added |
| Sienna Gestion | 56,500 | $9.48M | 0.58% | −11,717−17.2% | Reduced |
| M&T Bank Corp | 56,567 | $9.48M | 0.03% | +10,018+21.5% | Added |
| CI Private Wealth, LLC | 57,781 | $9.69M | 0.01% | +2,402+4.3% | Added |
| Mattern Capital Management, LLC | 58,526 | $9.81M | 1.16% | −1,540−2.6% | Reduced |
| Miller Howard Investments Inc | 58,819 | $9.86M | 0.30% | +4,186+7.7% | Added |
| HighTower Advisors, LLC | 59,496 | $9.97M | 0.01% | −3,513−5.6% | Reduced |
| State of Tennessee, Treasury Department | 60,209 | $10.0M | 0.03% | −382−0.6% | Reduced |
| Abn Amro Investment Solutions | 59,866 | $10.0M | 0.15% | −1,113−1.8% | Reduced |
| State of Michigan Retirement System | 60,010 | $10.1M | 0.05% | +9,000+17.6% | Added |
| Worldquant Millennium Advisors LLC | 60,910 | $10.2M | 0.04% | +2,322+4.0% | Added |
| Cresset Asset Management, LLC | 61,719 | $10.3M | 0.04% | +450+0.7% | Added |
| Mn Services Vermogensbeheer B.V. | 62,662 | $10.5M | 0.06% | +3,262+5.5% | Added |
| Kepler Cheuvreux (Suisse) SA | 62,677 | $10.5M | 0.59% | −44,808−41.7% | Reduced |
| Van Eck Associates Corp | 64,534 | $10.8M | 0.01% | +5,287+8.9% | Added |
| Forsta Ap-Fonden | 65,000 | $10.9M | 0.06% | −14,700−18.4% | Reduced |
| Resona Asset Management Co.,Ltd. | 66,466 | $11.2M | 0.05% | −1,477−2.2% | Reduced |
| TD Asset Management Inc | 66,706 | $11.2M | 0.01% | −100,447−60.1% | Reduced |
| Millennium Management LLC | 66,985 | $11.2M | 0.01% | +6,559+10.9% | Added |
| Treasurer of the State of North Carolina | 67,057 | $11.2M | 0.04% | −4,093−5.8% | Reduced |
| Creative Planning | 67,620 | $11.3M | 0.01% | +10,077+17.5% | Added |
| Yousif Capital Management, LLC | 67,628 | $11.4M | 0.12% | −4,701−6.5% | Reduced |
| Eastern Bank | 70,142 | $11.8M | 0.20% | +87+0.1% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 70,655 | $11.8M | 0.03% | −48−0.1% | Reduced |
| Edgestream Partners, L.P. | 72,520 | $12.2M | 0.34% | +72,520 | New |
| Bank of Nova Scotia | 72,972 | $12.2M | 0.02% | +43,071+144.0% | Added |
| D. E. Shaw & Co., Inc. | 73,350 | $12.3M | 0.01% | +63,204+622.9% | Added |
| SG Americas Securities, LLC | 77,177 | $12.9M | 0.02% | +50,252+186.6% | Added |
| Prudential Financial Inc | 78,851 | $13.2M | 0.02% | −10,267−11.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 80,229 | $13.4M | 0.46% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 83,136 | $13.9M | 0.03% | −1,123−1.3% | Reduced |
| Mather Group, LLC. | 83,983 | $14.1M | 0.14% | −4,997−5.6% | Reduced |
| Paradiem, LLC | 85,664 | $14.4M | 3.44% | −743−0.9% | Reduced |
| National Bank of Canada | 85,764 | $14.4M | 0.01% | +44,867+109.7% | Added |
| Assetmark, Inc | 87,011 | $14.6M | 0.03% | −23,306−21.1% | Reduced |
| Public Employees Retirement System of Ohio | 92,708 | $15.5M | 0.05% | −6,371−6.4% | Reduced |
| Gabelli Funds LLC | 92,950 | $15.6M | 0.11% | −1,600−1.7% | Reduced |
| Cetera Investment Advisers | 97,758 | $16.4M | 0.02% | +4,088+4.4% | Added |
| Squarepoint Ops LLC | 98,135 | $16.5M | 0.03% | −392,350−80.0% | Reduced |
| Lazard Asset Management LLC | 100,740 | $16.9M | 0.03% | −41,261−29.1% | Reduced |
| AMF Pensionsforsakring AB | 102,632 | $17.2M | 0.11% | 00.0% | Unchanged |
| Macquarie Group Ltd | 106,103 | $17.8M | 0.08% | +4,072+4.0% | Added |
| Capital Group Private Client Services, Inc. | 106,601 | $17.9M | 0.28% | +2,715+2.6% | Added |
| Quantinno Capital Management LP | 107,542 | $18.0M | 0.04% | +27,443+34.3% | Added |
| FMR LLC | 112,965 | $18.9M | 0.00% | +16,796+17.5% | Added |
| Storebrand Asset Management AS | 113,057 | $19.0M | 0.05% | +32,133+39.7% | Added |
| Assenagon Asset Management S.A. | 114,386 | $19.2M | 0.03% | −96,835−45.8% | Reduced |
| Natixis Advisors, L.P. | 116,484 | $19.5M | 0.03% | −14,348−11.0% | Reduced |
| STRS Ohio | 118,134 | $19.8M | 0.07% | +500.0% | Added |
| Russell Investments Group, Ltd. | 118,919 | $19.9M | 0.02% | +675+0.6% | Added |
| New York State Teachers Retirement System | 119,391 | $20.0M | 0.04% | −20.0% | Reduced |
| Baird Financial Group, Inc. | 120,941 | $20.3M | 0.03% | +5,806+5.0% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 132,162 | $22.2M | 0.03% | +46,903+55.0% | Added |
| Aviva PLC | 133,161 | $22.3M | 0.04% | +7,027+5.6% | Added |
| Man Group plc | 133,542 | $22.4M | 0.04% | +32,956+32.8% | Added |
| Clearbridge Investments, LLC | 136,633 | $22.9M | 0.02% | +47,242+52.8% | Added |
| State Board of Administration of Florida Retirement System | 137,046 | $23.0M | 0.04% | 00.0% | Unchanged |
| Magellan Asset Management Ltd | 138,554 | $23.2M | 0.28% | +7,991+6.1% | Added |
| Arbejdsmarkedets Tillaegspension | 139,878 | $23.4M | 0.60% | +139,878 | New |
| Ameriprise Financial Inc | 141,138 | $23.7M | 0.01% | −4,335−3.0% | Reduced |
| Hennessy Advisors Inc | 144,386 | $24.2M | 0.86% | −3,700−2.5% | Reduced |
| Asset Management One Co.,Ltd. | 143,737 | $24.2M | 0.07% | +16,256+12.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 145,874 | $24.5M | 0.10% | −6,200−4.1% | Reduced |
| KLP Kapitalforvaltning AS | 147,159 | $24.7M | 0.10% | −12,800−8.0% | Reduced |
| Cramer Rosenthal McGlynn LLC | 149,679 | $25.1M | 1.62% | −1,686−1.1% | Reduced |
| CIBC Asset Management Inc | 153,013 | $25.6M | 0.06% | +15,614+11.4% | Added |
| Janney Montgomery Scott LLC | 155,379 | $26.0M | 0.06% | −645−0.4% | Reduced |
| Maryland State Retirement & Pension System | 159,227 | $26.7M | 0.55% | +2,735+1.7% | Added |
| Victory Capital Management Inc | 160,344 | $26.9M | 0.02% | −11,394−6.6% | Reduced |
| Qube Research & Technologies Ltd | 172,435 | $28.9M | 0.04% | +172,435 | New |
| Exchange Traded Concepts, LLC | 173,708 | $29.1M | 0.24% | −4,516−2.5% | Reduced |
| LPL Financial LLC | 174,655 | $29.3M | 0.01% | +21,587+14.1% | Added |
| Korea Investment CORP | 175,347 | $29.4M | 0.06% | −1,832−1.0% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 197,856 | $29.8M | 0.05% | −24,906−11.2% | Reduced |
| Alliancebernstein L.P. | 181,364 | $30.4M | 0.01% | −2,277−1.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 182,173 | $30.9M | 0.05% | +20,408+12.6% | Added |
| Great West Life Assurance Co | 189,814 | $31.8M | 0.06% | −32,123−14.5% | Reduced |
| Aventail Capital Group, LP | 191,137 | $32.0M | 1.85% | −146,961−43.5% | Reduced |
| Bank of Montreal | 200,645 | $33.6M | 0.01% | +3,705+1.9% | Added |
| Public Employees Retirement Association of Colorado | 204,494 | $34.3M | 0.13% | 00.0% | Unchanged |
| M&G Plc | 204,364 | $34.3M | 0.18% | −5,731−2.7% | Reduced |
| Dearborn Partners LLC | 206,052 | $34.5M | 1.72% | −8,004−3.7% | Reduced |
| Eurizon Capital SGR S.p.A. | 206,292 | $34.6M | 0.11% | +206,292 | New |
| Standard Life Aberdeen plc | 215,066 | $36.1M | 0.06% | +13,428+6.7% | Added |
| National Pension Service | 221,670 | $37.2M | 0.03% | +12,979+6.2% | Added |
| Stifel Financial Corp | 228,619 | $38.3M | 0.03% | −15,823−6.5% | Reduced |
| Merewether Investment Management, LP | 238,236 | $39.9M | 0.92% | +165,300+226.6% | Added |
| Mizuho Markets Americas LLC | 240,814 | $40.4M | 0.87% | −44,975−15.7% | Reduced |
| Partners Group Holding AG | 241,751 | $40.5M | 2.74% | −29,938−11.0% | Reduced |
| Schroder Investment Management Group | 242,920 | $41.0M | 0.03% | +4,289+1.8% | Added |