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, Q1 2026
Institutional positions in Atmos Energy Corp as of Mar 31, 2026. 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
- 1,020
- +57 vs. Q4 2025
- Shares held
- 160.0M
- +21.2M (+15.3%) vs. Q4 2025
- Total value
- $29.6B
- +$6.29B (+27.0%) vs. Q4 2025
- New holders
- 142
- 409 more added
- Sold out
- 85
- 305 more reduced
17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Public Employees Retirement Association of Colorado | 180,494 | $33.3M | 0.13% | −24,000−11.7% | Reduced |
| Quantinno Capital Management LP | 174,843 | $32.3M | 0.05% | +67,301+62.6% | Added |
| Renaissance Technologies LLC | 166,800 | $30.8M | 0.05% | +114,800+220.8% | Added |
| Bank of Montreal | 165,001 | $30.5M | 0.01% | −35,644−17.8% | Reduced |
| Victory Capital Management Inc | 163,732 | $30.2M | 0.02% | +3,388+2.1% | Added |
| Man Group plc | 161,505 | $29.8M | 0.06% | +27,963+20.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 184,518 | $29.6M | 0.05% | −13,338−6.7% | Reduced |
| CIBC Asset Management Inc | 158,206 | $29.2M | 0.07% | +5,193+3.4% | Added |
| Maryland State Retirement & Pension System | 157,038 | $29.0M | 0.59% | −2,189−1.4% | Reduced |
| Vanguard Investments Australia, Ltd. | 156,854 | $29.0M | 0.08% | +156,854 | New |
| Korea Investment CORP | 154,960 | $28.6M | 0.06% | −20,387−11.6% | Reduced |
| Alliancebernstein L.P. | 169,829 | $28.5M | 0.01% | −11,535−6.4% | Reduced |
| KLP Kapitalforvaltning AS | 153,559 | $28.4M | 0.11% | +6,400+4.3% | Added |
| Hennessy Advisors Inc | 143,286 | $26.5M | 0.96% | −1,100−0.8% | Reduced |
| Asset Management One Co.,Ltd. | 141,969 | $26.2M | 0.08% | −1,768−1.2% | Reduced |
| Janney Montgomery Scott LLC | 141,530 | $26.1M | 0.06% | −13,849−8.9% | Reduced |
| Arbejdsmarkedets Tillaegspension | 139,542 | $25.8M | 0.64% | −336−0.2% | Reduced |
| State Board of Administration of Florida Retirement System | 137,046 | $25.3M | 0.05% | 00.0% | Unchanged |
| Canada Pension Plan Investment Board | 135,704 | $25.1M | 0.02% | +95,794+240.0% | Added |
| Creative Planning | 131,487 | $24.3M | 0.02% | +63,867+94.4% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 130,340 | $24.1M | 0.03% | −1,822−1.4% | Reduced |
| Sienna Gestion | 127,012 | $23.7M | 1.55% | +70,512+124.8% | Added |
| Baird Financial Group, Inc. | 127,222 | $23.5M | 0.04% | +6,281+5.2% | Added |
| New York State Teachers Retirement System | 126,584 | $23.4M | 0.05% | +7,193+6.0% | Added |
| Storebrand Asset Management AS | 125,577 | $23.2M | 0.07% | +12,520+11.1% | Added |
| FMR LLC | 125,494 | $23.2M | 0.00% | +12,529+11.1% | Added |
| STRS Ohio | 125,228 | $23.1M | 0.09% | +7,094+6.0% | Added |
| Russell Investments Group, Ltd. | 122,865 | $22.7M | 0.02% | +3,946+3.3% | Added |
| Natixis Advisors, L.P. | 121,604 | $22.5M | 0.03% | +5,120+4.4% | Added |
| AMF Pensionsforsakring AB | 105,704 | $19.5M | 0.13% | +3,072+3.0% | Added |
| Caisse de Depot Et Placement du Quebec | 104,528 | $19.3M | 0.03% | +98,491+1,631.5% | Added |
| Macquarie Group Ltd | 102,512 | $18.9M | 0.11% | −3,591−3.4% | Reduced |
| Cetera Investment Advisers | 102,024 | $18.8M | 0.02% | +4,266+4.4% | Added |
| Tredje AP-fonden | 95,318 | $17.6M | 0.10% | +50,188+111.2% | Added |
| Jones Financial Companies LLLP | 95,580 | $17.5M | 0.01% | +47,904+100.5% | Added |
| Public Employees Retirement System of Ohio | 94,462 | $17.4M | 0.06% | +1,754+1.9% | Added |
| Gabelli Funds LLC | 92,950 | $17.2M | 0.12% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 94,317 | $17.1M | 0.02% | +36,536+63.2% | Added |
| State of Wisconsin Investment Board | 92,071 | $17.0M | 0.04% | +8,935+10.7% | Added |
| Two Sigma Investments, LP | 89,985 | $16.6M | 0.01% | +86,381+2,396.8% | Added |
| Cramer Rosenthal McGlynn LLC | 89,879 | $16.6M | 1.22% | −59,800−40.0% | Reduced |
| Assetmark, Inc | 89,289 | $16.5M | 0.03% | +2,278+2.6% | Added |
| Paradiem, LLC | 87,119 | $16.1M | 3.54% | +1,455+1.7% | Added |
| National Bank of Canada | 85,110 | $15.7M | 0.02% | −654−0.8% | Reduced |
| Qube Research & Technologies Ltd | 82,631 | $15.3M | 0.02% | −89,804−52.1% | Reduced |
| Mather Group, LLC. | 82,324 | $15.2M | 0.15% | −1,659−2.0% | Reduced |
| Lazard Asset Management LLC | 81,870 | $15.1M | 0.02% | −18,870−18.7% | Reduced |
| Capital Group Private Client Services, Inc. | 80,747 | $14.9M | 0.25% | −25,854−24.3% | Reduced |
| SEB Asset Management AB | 77,947 | $14.4M | 0.06% | +77,947 | New |
| Prudential Financial Inc | 77,095 | $14.2M | 0.02% | −1,756−2.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 72,261 | $13.3M | 0.03% | +1,606+2.3% | Added |
| Merewether Investment Management, LP | 71,509 | $13.2M | 0.26% | −166,727−70.0% | Reduced |
| SG Americas Securities, LLC | 70,855 | $13.1M | 0.01% | −6,322−8.2% | Reduced |
| Verition Fund Management LLC | 70,463 | $13.0M | 0.13% | +64,176+1,020.8% | Added |
| TD Asset Management Inc | 69,408 | $12.8M | 0.01% | +2,702+4.1% | Added |
| Resona Asset Management Co.,Ltd. | 68,481 | $12.7M | 0.06% | +2,015+3.0% | Added |
| Treasurer of the State of North Carolina | 68,516 | $12.7M | 0.04% | +1,459+2.2% | Added |
| Worldquant Millennium Advisors LLC | 68,088 | $12.6M | 0.05% | +7,178+11.8% | Added |
| Gotham Asset Management, LLC | 68,017 | $12.6M | 0.04% | +36,019+112.6% | Added |
| Van Eck Associates Corp | 67,193 | $12.4M | 0.01% | +2,659+4.1% | Added |
| Yousif Capital Management, LLC | 66,643 | $12.3M | 0.14% | −985−1.5% | Reduced |
| Ameriprise Financial Inc | 65,071 | $12.0M | 0.00% | −76,067−53.9% | Reduced |
| Eastern Bank | 63,540 | $11.7M | 0.20% | −6,602−9.4% | Reduced |
| Cresset Asset Management, LLC | 63,533 | $11.7M | 0.05% | +1,814+2.9% | Added |
| Mn Services Vermogensbeheer B.V. | 61,362 | $11.3M | 0.07% | −1,300−2.1% | Reduced |
| State of Michigan Retirement System | 61,210 | $11.3M | 0.06% | +1,200+2.0% | Added |
| State of Tennessee, Treasury Department | 60,209 | $11.1M | 0.04% | 00.0% | Unchanged |
| Mattern Capital Management, LLC | 59,706 | $11.0M | 1.32% | +1,180+2.0% | Added |
| Mariner, LLC | 59,529 | $11.0M | 0.01% | +30,430+104.6% | Added |
| Cerity Partners LLC | 59,296 | $11.0M | 0.02% | +8,600+17.0% | Added |
| Diversify Wealth Management, LLC | 58,356 | $10.8M | 0.19% | +16,932+40.9% | Added |
| HighTower Advisors, LLC | 57,699 | $10.7M | 0.01% | −1,797−3.0% | Reduced |
| Federated Hermes, Inc. | 54,552 | $10.1M | 0.02% | +53,867+7,863.8% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 52,547 | $9.71M | 0.28% | −3,268−5.9% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 52,386 | $9.68M | 0.05% | +548+1.1% | Added |
| Arvest Bank Trust Division | 51,835 | $9.57M | 0.52% | −741−1.4% | Reduced |
| Miller Howard Investments Inc | 51,795 | $9.57M | 0.26% | −7,024−11.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 51,656 | $9.54M | 0.07% | 00.0% | Unchanged |
| Intech Investment Management LLC | 51,636 | $9.54M | 0.09% | +21,946+73.9% | Added |
| Fisher Funds Management LTD | 49,500 | $9.14M | 0.27% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 49,465 | $9.14M | 0.52% | +39,658+404.4% | Added |
| Illinois Municipal Retirement Fund | 49,006 | $9.05M | 0.12% | +7,842+19.1% | Added |
| Federation des caisses Desjardins du Quebec | 48,678 | $8.99M | 0.03% | +10,538+27.6% | Added |
| DekaBank Deutsche Girozentrale | 47,563 | $8.88M | 0.01% | 00.0% | Unchanged |
| DnB Asset Management AS | 47,769 | $8.82M | 0.03% | +3,952+9.0% | Added |
| Public Sector Pension Investment Board | 47,012 | $8.68M | 0.03% | +5,966+14.5% | Added |
| Tudor Investment Corp Et Al | 46,989 | $8.68M | 0.05% | +29,550+169.4% | Added |
| M&T Bank Corp | 46,083 | $8.51M | 0.03% | −10,484−18.5% | Reduced |
| Allianz Asset Management GmbH | 46,047 | $8.51M | 0.01% | +40,538+735.9% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 45,339 | $8.38M | 0.09% | +26,500+140.7% | Added |
| Czech National Bank | 45,057 | $8.32M | 0.05% | +2,729+6.4% | Added |
| Nisa Investment Advisors, LLC | 44,711 | $8.26M | 0.03% | −142−0.3% | Reduced |
| Ensign Peak Advisors, Inc | 44,249 | $8.17M | 0.02% | −9,178−17.2% | Reduced |
| Arizona State Retirement System | 43,949 | $8.12M | 0.05% | −148−0.3% | Reduced |
| IFM Investors Pty Ltd | 42,982 | $7.94M | 0.07% | −4,419−9.3% | Reduced |
| Kepler Cheuvreux (Suisse) SA | 42,250 | $7.80M | 0.52% | −20,427−32.6% | Reduced |
| Swedbank AB | 42,155 | $7.79M | 0.01% | +1,217+3.0% | Added |
| BCM Advisors, LLC | 41,319 | $7.76M | 1.53% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 41,990 | $7.76M | 0.02% | +544+1.3% | Added |
| MML Investors Services, LLC | 41,968 | $7.75M | 0.02% | +1,361+3.4% | Added |