Latest Period
Q1 2026
Security Snapshot
ATMOS ENERGY CORP - Common Stock (ATO) Institutional Ownership
CUSIP: 049560105
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
1,008
Shares (Excl. Options)
159,960,037
Price
$184.72
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- Security type / class
- Equity / Common Stock
- Symbol
- ATO on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 159,960,037
- Total 13F value
- $29,539,819,951
- Portfolio coverage rank
- 0.02%
- Share change
- -3,326,177
- Value change
- -$565,083,234
- Number of holders
- 1,008
- Shares outstanding
- 164,681,340
- SEC-reported price per share
- $182.13
- Insider filing price
- $182.13
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ATO - ATMOS ENERGY CORP - Common Stock is tracked under CUSIP 049560105.
- 1008 institutions reported positions in Q1 2026.
- 7 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 974 to 1,008 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $27,152,821,047 to $29,539,819,951.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1008 institutions filings for Q1 2026.
Security key
049560105
Latest holder period
Q1 2026
13F holders
1,008
13D/G owners
7
CIK / CUSIP context first
Open Q1 2026 holders
ATO full holder history
ATMOS ENERGY CORP SEC filings
ATMOS ENERGY CORP company facts
ATMOS ENERGY CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 049560105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
7
Security
ATO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 10% | $2,847,928,748 | 16,204,431 | BlackRock, Inc. | 30 Nov 2025 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 7.5% | $2,303,127,751 | 12,468,210 | Vanguard Capital Management | 31 Mar 2026 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 6.5% | -16% | $1,787,384,363 | -$316,599,186 | 10,467,844 | -15% | Wellington Management Group LLP | 30 Sep 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.6% | $1,718,824,218 | 9,305,025 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| Aristotle Capital Management, LLC | 4.9% | $1,245,219,504 | 7,797,730 | Aristotle Capital Management, LLC | 31 Mar 2025 | |||
| PRICE T ROWE ASSOCIATES INC /MD/ | 4.9% | -2% | $1,177,266,359 | -$21,239,235 | 7,745,683 | -1.8% | T. Rowe Price Associates, Inc. | 30 Jun 2025 |
| Capital International Investors | 4.7% | -27% | $1,429,737,049 | -$516,203,180 | 7,740,023 | -27% | Capital International Investors | 31 Mar 2026 |
As of 31 Mar 2026, 1,008 institutional investors reported holding 159,960,037 shares of ATMOS ENERGY CORP - Common Stock (ATO). This represents 97% of the company’s total 164,681,340 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
67%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | 17,451,963 | +2.5% | 0.06% | $3,223,726,654 |
| STATE STREET CORP | 6.9% | 11,372,750 | +5.4% | 0.07% | $2,100,774,380 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.5% | 10,735,547 | 0% | 0.05% | $1,983,070,242 |
| WELLINGTON MANAGEMENT GROUP LLP | 5.9% | 9,651,472 | -3.6% | 0.33% | $1,782,819,908 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.6% | 9,285,633 | 0% | 0.09% | $1,715,242,128 |
| Capital International Investors | 4.4% | 7,326,778 | -38% | 0.32% | $1,353,494,702 |
| Aristotle Capital Management, LLC | 3% | 4,866,481 | -24% | 1.9% | $898,951,044 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 4,336,996 | +2.9% | 0.05% | $798,060,550 |
| BANK OF AMERICA CORP /DE/ | 2.6% | 4,199,433 | +11% | 0.06% | $775,719,274 |
| Capital Research Global Investors | 2.4% | 4,010,550 | 0.11% | $740,838,082 | |
| Invesco Ltd. | 1.8% | 3,007,306 | -0.21% | 0.09% | $555,509,593 |
| MORGAN STANLEY | 1.8% | 3,001,186 | +8.9% | 0.03% | $554,379,427 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.6% | 2,715,107 | -59% | 0.06% | $501,535,000 |
| DEUTSCHE BANK AG\ | 1.5% | 2,547,037 | -12% | 0.16% | $470,488,674 |
| GOLDMAN SACHS GROUP INC | 1.2% | 1,935,162 | +55% | 0.05% | $357,463,124 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.1% | 1,770,291 | -10% | 0.12% | $330,630,128 |
| Legal & General Group Plc | 0.98% | 1,616,380 | +2.3% | 0.07% | $298,577,708 |
| NORTHERN TRUST CORP | 0.94% | 1,549,694 | +2.5% | 0.04% | $286,259,475 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.91% | 1,490,653 | +18% | 0.25% | $275,353,422 |
| WELLS FARGO & COMPANY/MN | 0.81% | 1,329,328 | -1.5% | 0.05% | $245,553,394 |
| Amundi | 0.79% | 1,302,886 | +50% | 0.07% | $240,669,102 |
| Perpetual Ltd | 0.75% | 1,240,469 | -11% | 3.6% | $229,139,434 |
| RAYMOND JAMES FINANCIAL INC | 0.73% | 1,206,752 | +8.6% | 0.07% | $222,920,455 |
| Pictet Asset Management Holding SA | 0.71% | 1,175,415 | +11% | 0.23% | $217,124,143 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.65% | 1,063,678 | +3.3% | 0.04% | $196,482,600 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 159,960,037 | $29,539,819,951 | -$565,083,234 | $184.72 | 1,008 |
| 2025 Q4 | 162,028,949 | $27,152,821,047 | +$217,273,467 | $167.63 | 974 |
| 2025 Q3 | 159,426,160 | $27,216,074,675 | -$50,535,049 | $170.75 | 905 |
| 2025 Q2 | 160,330,798 | $24,698,790,280 | +$614,379,560 | $154.11 | 860 |
| 2025 Q1 | 156,480,678 | $24,185,957,388 | +$195,514,059 | $154.58 | 853 |
| 2024 Q4 | 156,326,935 | $21,769,631,849 | +$729,058,833 | $139.27 | 808 |
| 2024 Q3 | 149,409,670 | $20,720,110,686 | +$885,627,481 | $138.71 | 747 |
| 2024 Q2 | 143,140,063 | $16,693,701,589 | +$559,579,026 | $116.65 | 725 |
| 2024 Q1 | 138,771,933 | $16,486,002,262 | +$319,367,873 | $118.87 | 720 |
| 2023 Q4 | 135,950,560 | $15,754,278,651 | +$35,534,765 | $115.90 | 719 |
| 2023 Q3 | 135,610,788 | $14,367,750,703 | -$12,091,784 | $105.93 | 665 |
| 2023 Q2 | 135,678,615 | $15,780,650,380 | +$547,206,286 | $116.34 | 666 |
| 2023 Q1 | 131,031,927 | $14,720,109,507 | +$9,102,292 | $112.36 | 657 |
| 2022 Q4 | 130,455,121 | $14,619,296,897 | +$240,692,004 | $112.07 | 657 |
| 2022 Q3 | 128,396,470 | $13,079,784,135 | +$152,117,111 | $101.85 | 619 |
| 2022 Q2 | 126,325,808 | $14,159,605,495 | +$250,214,757 | $112.10 | 605 |
| 2022 Q1 | 124,605,227 | $14,884,680,441 | +$757,432,515 | $119.49 | 595 |
| 2021 Q4 | 118,485,972 | $12,406,004,102 | +$603,364,203 | $104.77 | 558 |
| 2021 Q3 | 112,576,735 | $9,923,323,999 | +$300,600,941 | $88.20 | 526 |
| 2021 Q2 | 109,153,370 | $10,485,537,993 | +$74,387,019 | $96.11 | 541 |
| 2021 Q1 | 108,137,258 | $10,674,531,150 | -$5,988,388 | $98.85 | 539 |
| 2020 Q4 | 107,900,498 | $10,276,853,106 | -$136,937,447 | $95.43 | 548 |
| 2020 Q3 | 109,198,435 | $10,424,675,874 | +$7,647,378 | $95.59 | 526 |
| 2020 Q2 | 108,764,307 | $10,822,932,032 | +$476,721,243 | $99.58 | 526 |
| 2020 Q1 | 104,057,105 | $10,328,355,131 | +$100,549,000 | $99.23 | 541 |