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.
Holders of 5% or more of ATO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Atmos Energy Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 10.00%16.2M shares | – | Dec 4, 20251 filing | Dec 4, 2025 | SEC |
| Capital International Investors | 13G/A | 6.60%10.5M shares | +1.10 ppfrom 5.50% | Feb 14, 20252 filings | May 13, 2025 | SEC |
| Wellington Management Group LLP | 13G/A | 6.50%10.5M shares | −1.30 ppfrom 7.80% | May 12, 20252 filings | Nov 12, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
8 Schedule 13D and 13G filings on Atmos Energy Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Dec 4, 20252:24 PM ET | BlackRock, Inc. | 13G/A | 10.00%16.2M shares | – | Nov 30, 2025 | SEC |
| Nov 12, 20259:33 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 6.50%10.5M shares | −1.30 ppfrom 7.80% | Sep 30, 2025 | SEC |
| Aug 14, 20251:07 PM ET | Price T Rowe Associates Inc | 13G/A | 4.90%7.75M shares | −0.10 ppfrom 5.00%Below 5% | Jun 30, 2025 | SEC |
| May 15, 20259:05 AM ET | Aristotle Capital Management, LLC | 13G/A | 4.91%7.80M shares | –Below 5% | Mar 31, 2025 | SEC |
| May 14, 202510:45 AM ET | Price T Rowe Associates Inc | 13G/A | 5.00%7.89M shares | – | Mar 31, 2025 | SEC |
| May 13, 20255:12 PM ET | Capital International Investors | 13G/A | 6.60%10.5M shares | +1.10 ppfrom 5.50% | Mar 31, 2025 | SEC |
| May 12, 202510:44 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 7.80%12.3M shares | – | Mar 31, 2025 | SEC |
| Feb 14, 20251:32 PM ET | Capital International Investors | 13G | 5.50%8.62M shares | New | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Atmos Energy Corp shares.
No Form 144 notices for Atmos Energy Corp are on file.