Security Snapshot

ATMOS ENERGY CORP - Common Stock (ATO) Institutional Ownership

CUSIP: 049560105

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

1,044

Shares (Excl. Options)

162.67MFull value: 162,666,980 · shares · 30 Jun 2026

Price

$172.27

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Security type / class
Equity / Common Stock
Symbol
ATO on NYSE
All holders as of 30 Jun 2026
Q2 2026
Total 13F shares
162,666,980
Latest holder snapshot 5 signals
Total 13F value
$28,026,453,511
Portfolio coverage rank
0.02%
Share change
+2,831,122
Value change
+$483,558,392
Number of holders
1,044
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
167,014,509
SEC-reported price per share
$160.66
Insider filing price
$160.66
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • ATO - ATMOS ENERGY CORP - Common Stock is tracked under CUSIP 049560105.
  • 1044 institutions reported positions in Q2 2026.
  • 7 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 1,020 to 1,044 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $29.55BFull value: $29,552,625,110 · USD · 31 Mar 2026
    to
    $28.03BFull value: $28,026,453,511 · USD · 30 Jun 2026
    .

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

Latest holder context comes from 1044 institutions filings for Q2 2026.

Open SEC evidence

Security key

049560105

13F reference period

Q2 2026

13F holders

1,044

13D/G owners

7

CIK / CUSIP context first

Open Q2 2026 holders ATO full holder history ATMOS ENERGY CORP SEC filings ATMOS ENERGY CORP company facts ATMOS ENERGY CORP insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

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. 8.7% -13% $2,504,506,222 -$287,031,106 14,538,261 -10% BlackRock, Inc. 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC 7.5% $2,303,127,751 12,468,210 Vanguard Capital Management 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC 5.6% $1,718,824,218 9,305,025 Vanguard Portfolio Management 31 Mar 2026
WELLINGTON MANAGEMENT GROUP LLP 5.5% -14% $1,626,712,968 -$227,037,526 9,185,798 -12% Wellington Management Group LLP 30 Jun 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 30 Jun 2026, 1,044 institutional investors reported holding
162.67MFull value: 162,666,980 · shares · 30 Jun 2026
shares of ATMOS ENERGY CORP - Common Stock (ATO). This represents 97% of the company’s total
167.01MFull value: 167,014,509 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
63%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 9.1% 15,237,564 -13% 0.04% $2,624,975,204
STATE STREET CORP 6.8% 11,380,060 +0.06% 0.06% $1,960,442,936
VANGUARD CAPITAL MANAGEMENT LLC 6.5% 10,885,153 +1.4% 0.04% $1,875,185,307
VANGUARD PORTFOLIO MANAGEMENT LLC 5.6% 9,360,135 +0.8% 0.07% $1,612,470,457
WELLINGTON MANAGEMENT GROUP LLP 5.5% 9,185,788 -4.8% 0.27% $1,582,435,699
Capital International Investors 4.5% 7,483,012 +2.1% 0.27% $1,289,959,643
GEODE CAPITAL MANAGEMENT, LLC 2.7% 4,489,277 +3.5% 0.04% $770,329,095
BANK OF AMERICA CORP /DE/ 2.5% 4,180,718 -0.45% 0.05% $720,212,336
Invesco Ltd. 1.9% 3,173,775 +5.5% 0.04% $546,746,189
MORGAN STANLEY 1.7% 2,863,719 -4.6% 0.03% $493,333,105
DEUTSCHE BANK AG\ 1.5% 2,505,816 -1.6% 0.13% $431,676,922
PRICE T ROWE ASSOCIATES INC /MD/ 1.5% 2,481,649 -8.6% 0.04% $427,515,000
AQR CAPITAL MANAGEMENT LLC 1.4% 2,373,903 +189% 0.14% $408,952,307
GOLDMAN SACHS GROUP INC 1.3% 2,165,784 +12% 0.04% $373,099,563
Qube Research & Technologies Ltd 1.3% 2,136,532 +2486% 0.41% $368,060,368
NORGES BANK 1.2% 2,079,227 0.04% $358,188,435
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 1.1% 1,839,057 +3.9% 0.11% $320,429,543
Amundi 1.1% 1,823,714 +40% 0.08% $314,171,210
CITADEL ADVISORS LLC 1% 1,736,405 +131% 0.17% $299,130,489
Legal & General Group Plc 0.96% 1,605,373 -0.68% 0.06% $276,557,615
Capital Research Global Investors 0.9% 1,508,563 -62% 0.04% $259,885,813
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.89% 1,491,483 +0.06% 0.2% $256,937,775
NORTHERN TRUST CORP 0.83% 1,393,267 -10% 0.03% $240,018,106
Point72 Asset Management, L.P. 0.81% 1,361,162 0.36% $234,487,378
RAYMOND JAMES FINANCIAL INC 0.76% 1,271,473 +5.4% 0.06% $219,036,634

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 23,825,781 $3,725,668,063 +$101,534,541 $156.44 464
2026 Q2 162,666,980 $28,026,453,511 +$483,558,392 $172.27 1,044
2026 Q1 160,029,401 $29,552,625,110 -$562,206,186 $184.72 1,020
2025 Q4 162,029,211 $27,152,864,966 +$217,273,467 $167.63 976
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
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