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 |
|---|---|---|---|---|---|
| Creative Planning | 131,487 | $24.3M | 0.02% | +63,867+94.4% | Added |
| Canada Pension Plan Investment Board | 135,704 | $25.1M | 0.02% | +95,794+240.0% | Added |
| State Board of Administration of Florida Retirement System | 137,046 | $25.3M | 0.05% | 00.0% | Unchanged |
| Arbejdsmarkedets Tillaegspension | 139,542 | $25.8M | 0.64% | −336−0.2% | Reduced |
| Janney Montgomery Scott LLC | 141,530 | $26.1M | 0.06% | −13,849−8.9% | Reduced |
| Asset Management One Co.,Ltd. | 141,969 | $26.2M | 0.08% | −1,768−1.2% | Reduced |
| Hennessy Advisors Inc | 143,286 | $26.5M | 0.96% | −1,100−0.8% | Reduced |
| KLP Kapitalforvaltning AS | 153,559 | $28.4M | 0.11% | +6,400+4.3% | Added |
| Alliancebernstein L.P. | 169,829 | $28.5M | 0.01% | −11,535−6.4% | Reduced |
| Korea Investment CORP | 154,960 | $28.6M | 0.06% | −20,387−11.6% | Reduced |
| Vanguard Investments Australia, Ltd. | 156,854 | $29.0M | 0.08% | +156,854 | New |
| Maryland State Retirement & Pension System | 157,038 | $29.0M | 0.59% | −2,189−1.4% | Reduced |
| CIBC Asset Management Inc | 158,206 | $29.2M | 0.07% | +5,193+3.4% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 184,518 | $29.6M | 0.05% | −13,338−6.7% | Reduced |
| Man Group plc | 161,505 | $29.8M | 0.06% | +27,963+20.9% | Added |
| Victory Capital Management Inc | 163,732 | $30.2M | 0.02% | +3,388+2.1% | Added |
| Bank of Montreal | 165,001 | $30.5M | 0.01% | −35,644−17.8% | Reduced |
| Renaissance Technologies LLC | 166,800 | $30.8M | 0.05% | +114,800+220.8% | Added |
| Quantinno Capital Management LP | 174,843 | $32.3M | 0.05% | +67,301+62.6% | Added |
| Public Employees Retirement Association of Colorado | 180,494 | $33.3M | 0.13% | −24,000−11.7% | Reduced |
| Magellan Asset Management Ltd | 181,367 | $33.5M | 0.43% | +42,813+30.9% | Added |
| Dearborn Partners LLC | 188,269 | $34.8M | 1.88% | −17,783−8.6% | Reduced |
| Great West Life Assurance Co | 188,054 | $34.9M | 0.06% | −1,760−0.9% | Reduced |
| Eurizon Capital SGR S.p.A. | 189,350 | $35.0M | 0.11% | −16,942−8.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 189,256 | $35.1M | 0.06% | +7,083+3.9% | Added |
| LPL Financial LLC | 194,277 | $35.9M | 0.01% | +19,622+11.2% | Added |
| Exchange Traded Concepts, LLC | 195,457 | $36.1M | 0.28% | +21,749+12.5% | Added |
| M&G Plc | 201,418 | $37.3M | 0.19% | −2,946−1.4% | Reduced |
| Clearbridge Investments, LLC | 221,869 | $41.0M | 0.04% | +85,236+62.4% | Added |
| Standard Life Aberdeen plc | 228,217 | $42.2M | 0.07% | +13,151+6.1% | Added |
| Stifel Financial Corp | 232,998 | $43.0M | 0.04% | +4,379+1.9% | Added |
| Partners Group Holding AG | 238,206 | $44.0M | 3.26% | −3,545−1.5% | Reduced |
| Citigroup Inc | 241,707 | $44.6M | 0.03% | −95,158−28.2% | Reduced |
| National Pension Service | 244,687 | $45.2M | 0.03% | +23,017+10.4% | Added |
| Aventail Capital Group, LP | 247,838 | $45.8M | 2.21% | +56,701+29.7% | Added |
| Munich Reinsurance Co Stock Corp in Munich | 251,761 | $46.5M | 1.14% | −179−0.1% | Reduced |
| Royal London Asset Management Ltd | 255,035 | $47.1M | 0.10% | +6,360+2.6% | Added |
| Schroder Investment Management Group | 259,231 | $48.0M | 0.04% | +16,311+6.7% | Added |
| Millennium Management LLC | 261,421 | $48.3M | 0.04% | +194,436+290.3% | Added |
| Nomura Asset Management Co Ltd | 289,580 | $53.5M | 0.14% | +23,709+8.9% | Added |
| California Public Employees Retirement System | 290,843 | $53.7M | 0.03% | −107,019−26.9% | Reduced |
| New York State Common Retirement Fund | 295,457 | $54.6M | 0.08% | −1,576−0.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 301,973 | $55.8M | 0.28% | −9,240−3.0% | Reduced |
| Vanguard Asset Management, Ltd | 303,715 | $56.1M | 0.05% | +303,715 | New |
| CBOE Vest Financial, LLC | 307,562 | $56.8M | 0.68% | +29,036+10.4% | Added |
| Toronto Dominion Bank | 309,461 | $57.2M | 0.11% | −19,922−6.0% | Reduced |
| KBC Group NV | 316,327 | $58.4M | 0.15% | −8,046−2.5% | Reduced |
| Manufacturers Life Insurance Company, The | 323,423 | $59.7M | 0.05% | −35,569−9.9% | Reduced |
| Boston Trust Walden Corp | 324,927 | $60.0M | 0.49% | −18,518−5.4% | Reduced |
| Capital International Inc | 325,613 | $60.1M | 0.46% | +35,950+12.4% | Added |
| Bahl & Gaynor Inc | 335,750 | $62.0M | 0.31% | +12,458+3.9% | Added |
| Benjamin Edwards Inc | 339,303 | $62.7M | 0.62% | −12,914−3.7% | Reduced |
| First Trust Advisors LP | 340,408 | $62.9M | 0.04% | −121,010−26.2% | Reduced |
| Jennison Associates LLC | 346,090 | $63.9M | 0.04% | −6,958−2.0% | Reduced |
| Rhumbline Advisers | 353,960 | $65.4M | 0.06% | −6,385−1.8% | Reduced |
| T. Rowe Price Investment Management, Inc. | 358,652 | $66.3M | 0.05% | +78,055+27.8% | Added |
| Vanguard Global Advisers, LLC | 360,844 | $66.7M | 0.04% | +360,844 | New |
| Energy Income Partners, LLC | 363,311 | $67.1M | 1.08% | +3,490+1.0% | Added |
| Barclays PLC | 373,342 | $69.0M | 0.02% | +52,466+16.4% | Added |
| Aviva PLC | 383,702 | $70.9M | 0.12% | +250,541+188.1% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 394,689 | $72.9M | 0.05% | −13,513−3.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 397,172 | $73.4M | 0.05% | +34,415+9.5% | Added |
| Earnest Partners LLC | 422,810 | $78.1M | 0.32% | −4,026−0.9% | Reduced |
| Clark Capital Management Group, Inc. | 432,477 | $79.9M | 0.49% | +63,241+17.1% | Added |
| Huntington National Bank | 467,982 | $86.4M | 0.48% | +3,011+0.6% | Added |
| California State Teachers Retirement System | 473,753 | $87.5M | 0.09% | −3,739−0.8% | Reduced |
| Swiss National Bank | 474,700 | $87.7M | 0.05% | +34,800+7.9% | Added |
| Nilsine Partners, LLC | 491,331 | $91.2M | 7.13% | −9,845−2.0% | Reduced |
| Royal Bank of Canada | 503,937 | $93.1M | 0.02% | −94,872−15.8% | Reduced |
| Principal Financial Group Inc | 507,404 | $93.7M | 0.05% | +21,175+4.4% | Added |
| SEI Investments Co | 512,825 | $94.7M | 0.09% | −61,274−10.7% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 518,713 | $95.8M | 0.28% | +13,587+2.7% | Added |
| Neuberger Berman Group LLC | 601,090 | $111.0M | 0.08% | +4,177+0.7% | Added |
| Duff & Phelps Investment Management Co | 607,945 | $112.3M | 1.17% | −44,361−6.8% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 668,040 | $123.4M | 0.37% | +29,001+4.5% | Added |
| Envestnet Asset Management Inc | 674,566 | $124.6M | 0.03% | +122,700+22.2% | Added |
| Silvercrest Asset Management Group LLC | 707,225 | $130.6M | 0.94% | −17,978−2.5% | Reduced |
| UBS Group AG | 718,687 | $132.8M | 0.02% | +131,226+22.3% | Added |
| Citadel Advisors LLC | 751,604 | $138.8M | 0.10% | +219,755+41.3% | Added |
| Dimensional Fund Advisors LP | 752,986 | $139.1M | 0.03% | +19,588+2.7% | Added |
| Cbre Clarion Securities LLC | 757,953 | $140.0M | 2.08% | +228,532+43.2% | Added |
| HSBC Holdings PLC | 780,184 | $144.1M | 0.09% | −36,402−4.5% | Reduced |
| JPMorgan Chase & Co | 796,227 | $147.3M | 0.01% | +434,444+120.1% | Added |
| Cohen & Steers, Inc. | 800,246 | $147.8M | 0.26% | +128,850+19.2% | Added |
| AQR Capital Management LLC | 822,776 | $150.9M | 0.07% | +316,159+62.4% | Added |
| BNP Paribas Arbitrage, SA | 834,718 | $154.2M | 0.10% | +516,491+162.3% | Added |
| The PNC Financial Services Group, Inc. | 886,291 | $163.7M | 0.09% | +11,318+1.3% | Added |
| GQG Partners LLC | 887,204 | $163.9M | 0.26% | +183,612+26.1% | Added |
| Bank of New York Mellon Corp | 892,696 | $164.9M | 0.03% | −3,522−0.4% | Reduced |
| Vanguard Fiduciary Trust Co | 930,642 | $171.9M | 0.04% | +930,642 | New |
| Nuveen, LLC | 947,508 | $175.0M | 0.05% | +463,524+95.8% | Added |
| American Century Companies Inc | 1,002,458 | $185.2M | 0.10% | −37,543−3.6% | Reduced |
| ProShare Advisors LLC | 1,023,862 | $189.1M | 0.28% | +75,103+7.9% | Added |
| Charles Schwab Investment Management Inc | 1,036,621 | $191.5M | 0.03% | +55,777+5.7% | Added |
| SFMG, LLC | 1,058,545 | $195.5M | 13.40% | −1,844−0.2% | Reduced |
| UBS Asset Management Americas Inc | 1,063,678 | $196.5M | 0.04% | +34,375+3.3% | Added |
| Pictet Asset Management Holding SA | 1,175,415 | $217.1M | 0.23% | +115,574+10.9% | Added |
| Raymond James Financial Inc | 1,206,752 | $222.9M | 0.07% | +95,432+8.6% | Added |
| Perpetual Ltd | 1,240,469 | $229.1M | 3.51% | −157,865−11.3% | Reduced |
| Amundi | 1,302,886 | $240.7M | 0.07% | +432,147+49.6% | Added |