Atmos Energy Corp

ATO

Exchange: NYSE
Industry: Natural Gas Distribution
SEC CIK: 0000731802

SEC filings (opens in a new tab)

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 2021

Institutional positions in Atmos Energy Corp as of Mar 31, 2021. 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: 550; No complete 13F data for Q4 2020
Shares held: 108.2M; No complete 13F data for Q4 2020
Total value: $10.7B; No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 550 institutions

Value heldQ1 2021: $10.7B

Institutions holding ATO and their total value by quarter
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 2021

Shares, value and share of portfolio for each institution holding Atmos Energy Corp.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ATO in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
Maryland State Retirement & Pension System	9,552	$944.0K	0.03%	–	–
US Bancorp	9,570	$946.0K	0.00%	–	–
Jacobi Capital Management LLC	9,831	$972.0K	0.14%	–	–
D.A. Davidson & Co.	9,870	$976.0K	0.01%	–	–
Teachers Retirement System of the State of Kentucky	9,950	$984.0K	0.01%	–	–
Albert D Mason Inc	10,032	$992.0K	0.65%	–	–
TCTC Holdings, LLC	10,100	$998.0K	0.05%	–	–
STRS Ohio	10,191	$1.01M	0.00%	–	–
First Dallas Securities Inc.	10,388	$1.03M	0.87%	–	–
Oregon Public Employees Retirement Fund	10,484	$1.04M	0.01%	–	–
Norinchukin Bank, The	10,660	$1.05M	0.01%	–	–
Weld Capital Management LLC	10,679	$1.06M	0.45%	–	–
Securian Asset Management, Inc	10,764	$1.06M	0.02%	–	–
Ethic Inc.	10,880	$1.08M	0.19%	–	–
CIBC Asset Management Inc	10,951	$1.08M	0.00%	–	–
Unigestion Holding SA	11,267	$1.11M	0.04%	–	–
CSat Investment Advisory, L.P.	11,495	$1.14M	0.95%	–	–
Captrust Financial Advisors	11,510	$1.14M	0.01%	–	–
Oppenheimer Asset Management Inc.	11,544	$1.14M	0.02%	–	–
Ensign Peak Advisors, Inc	11,710	$1.16M	0.00%	–	–
Fruth Investment Management	11,851	$1.17M	0.37%	–	–
Legacy Financial Strategies, LLC	11,943	$1.18M	0.62%	–	–
CIBC World Markets Corp	12,214	$1.21M	0.01%	–	–
Cornercap Investment Counsel Inc	12,312	$1.22M	0.14%	–	–
Synovus Financial Corp	12,507	$1.24M	0.01%	–	–
Cullen/Frost Bankers, Inc.	12,570	$1.24M	0.03%	–	–
Tower Research Capital LLC (TRC)	12,681	$1.25M	0.02%	–	–
IFM Investors Pty Ltd	12,881	$1.27M	0.03%	–	–
Alphasimplex Group, LLC	12,982	$1.28M	0.54%	–	–
Citizens Business Bank	13,300	$1.31M	0.18%	–	–
KBC Group NV	13,710	$1.35M	0.01%	–	–
American National Insurance Co	13,781	$1.36M	0.06%	–	–
Winton Group Ltd	13,862	$1.37M	0.08%	–	–
Hartford Investment Management Co	13,919	$1.38M	0.04%	–	–
Cubist Systematic Strategies, LLC	14,328	$1.42M	0.02%	–	–
Advisors Asset Management, Inc.	14,556	$1.44M	0.02%	–	–
Prospera Financial Services Inc	14,620	$1.45M	0.09%	–	–
Ilmarinen Mutual Pension Insurance Co	14,700	$1.45M	0.02%	–	–
Dean Investment Associates, LLC	15,106	$1.49M	0.28%	–	–
Cambridge Investment Research Advisors, Inc.	15,261	$1.51M	0.01%	–	–
Nissay Asset Management Corp	15,401	$1.52M	0.02%	–	–
Jefferies Group LLC	15,490	$1.53M	0.04%	–	–
Metropolitan Life Insurance Co	15,803	$1.56M	0.02%	–	–
Caisse de Depot Et Placement du Quebec	16,209	$1.60M	0.00%	–	–
Segall Bryant & Hamill, LLC	16,799	$1.66M	0.02%	–	–
Glenmede Trust Co NA	17,316	$1.71M	0.01%	–	–
Commonwealth Equity Services, LLC	17,552	$1.74M	0.00%	–	–
HighTower Advisors, LLC	18,423	$1.82M	0.01%	–	–
Van Eck Associates Corp	18,721	$1.85M	0.01%	–	–
Johnson Investment Counsel Inc	19,430	$1.92M	0.03%	–	–
Moody National Bank Trust Division	19,431	$1.92M	0.05%	–	–
Pensionfund Sabic	20,000	$1.98M	0.46%	–	–
Varma Mutual Pension Insurance Co	20,001	$1.98M	0.03%	–	–
Zurcher Kantonalbank (Zurich Cantonalbank)	20,161	$1.99M	0.01%	–	–
Crossmark Global Holdings, Inc.	20,438	$2.02M	0.05%	–	–
British Columbia Investment Management Corp	20,550	$2.03M	0.01%	–	–
Trust Co of Vermont	20,600	$2.04M	0.15%	–	–
Storebrand Asset Management AS	20,731	$2.05M	0.01%	–	–
Mackay Shields LLC	21,313	$2.11M	0.02%	–	–
Texas Permanent School Fund	21,401	$2.12M	0.03%	–	–
SG Americas Securities, LLC	21,422	$2.12M	0.01%	–	–
Folger Nolan Fleming Douglas Capital Management, Inc	21,492	$2.12M	0.26%	–	–
Baird Financial Group, Inc.	21,747	$2.15M	0.01%	–	–
State of Tennessee, Treasury Department	22,788	$2.25M	0.01%	–	–
Kinloch Capital, LLC	23,018	$2.27M	1.75%	–	–
Advisor Group Holdings, Inc.	23,171	$2.29M	0.01%	–	–
Hancock Whitney Corp	23,605	$2.33M	0.08%	–	–
Optimal Asset Management, Inc.	23,869	$2.36M	0.31%	–	–
High Pointe Capital Management LLC	24,176	$2.39M	2.10%	–	–
Voloridge Investment Management, LLC	24,190	$2.39M	0.02%	–	–
Azzad Asset Management Inc	24,295	$2.40M	0.40%	–	–
Utah Retirement Systems	24,406	$2.41M	0.03%	–	–
Employees Retirement System of Texas	24,409	$2.41M	0.03%	–	–
Hexavest Inc.	24,604	$2.43M	0.11%	–	–
Whittier Trust Co	25,780	$2.55M	0.05%	–	–
Ameritas Investment Partners, Inc.	26,779	$2.57M	0.10%	–	–
Mutual of America Capital Management LLC	26,224	$2.59M	0.03%	–	–
Oppenheimer & Co Inc	26,479	$2.62M	0.05%	–	–
The PNC Financial Services Group, Inc.	26,761	$2.65M	0.00%	–	–
Creative Planning	27,645	$2.73M	0.01%	–	–
Seeyond	27,812	$2.75M	0.28%	–	–
Stephens Inc	28,145	$2.78M	0.05%	–	–
CBOE Vest Financial, LLC	28,205	$2.79M	1.60%	–	–
Dai-Ichi Life Insurance Company, Ltd	28,986	$2.87M	0.04%	–	–
Bank of Nova Scotia	29,532	$2.92M	0.01%	–	–
Two Sigma Investments, LP	29,568	$2.92M	0.01%	–	–
USS Investment Management Ltd	29,805	$2.95M	0.03%	–	–
MetLife Investment Management	30,125	$2.98M	0.03%	–	–
DnB Asset Management AS	30,308	$3.00M	0.02%	–	–
Pensionfund DSM Netherlands	31,000	$3.06M	0.41%	–	–
Amarillo National Bank	31,322	$3.10M	0.79%	–	–
Gateway Investment Advisers LLC	31,447	$3.11M	0.03%	–	–
Thrivent Financial for Lutherans	32,151	$3.18M	0.01%	–	–
Envestnet Asset Management Inc	32,339	$3.20M	0.00%	–	–
Banque Cantonale Vaudoise	32,653	$3.23M	0.16%	–	–
Korea Investment CORP	33,100	$3.27M	0.01%	–	–
Texas Yale Capital Corp.	33,195	$3.28M	0.21%	–	–
Opus Investment Management Inc	33,900	$3.35M	0.49%	–	–
Comerica Bank	32,609	$3.37M	0.02%	–	–
Edgemoor Investment Advisors, Inc.	35,498	$3.51M	0.35%	–	–