ATO ATMOS ENERGY CORP: institutional ownership and insider trading
1,113 funds reported holding $31.7B of ATMOS ENERGY CORP in their latest 13F filings; in Q2 2026 funds net bought $450M, with 122 new positions and 97 funds selling out; over the last 12 months insiders bought $50.3K and sold $77.0K on the open market.
Famous investors holding ATO
- Renaissance Technologies (Renaissance Technologies): $77.2M, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $304M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $47.0M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $31.5M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $21.8M, 0.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $618K, 0.0% of the portfolio
Largest institutional holders of ATO
- VANGUARD GROUP INC — $3.53B
- BlackRock, Inc. (BLK) — $2.62B
- STATE STREET CORP (STT, STT-PG) — $1.96B
- VANGUARD CAPITAL MANAGEMENT LLC — $1.88B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $1.61B
- WELLINGTON MANAGEMENT GROUP LLP — $1.58B
- Capital International Investors — $1.29B
- GEODE CAPITAL MANAGEMENT, LLC — $770M
- BANK OF AMERICA CORP /DE/ (BAC, BAC-PB, BAC-PE, BAC-PK, BAC-PL, BAC-PM, BAC-PN, BAC-PO, BAC-PP, BML-PG, BML-PH, BML-PJ, BML-PL) — $720M
- Invesco Ltd. (IVZ) — $547M
Recent ATO insider trades
- Aug 11, 2026: Ware William James bought 300 shares ($50.3K)
- Dec 3, 2025: Donohue Sean sold 450 shares ($77.0K)
- May 14, 2025: Cocklin Kim R sold 15,000 shares ($2.26M)
- Nov 11, 2024: Geiser Edward bought 2,500 shares ($362K)
Members of Congress trading ATO
- Dec 2, 2025: Jared Moskowitz bought $1.00K–$15.0K
- Aug 19, 2025: Rick W. Allen bought $15.0K–$50.0K
- Nov 8, 2024: Jared Moskowitz bought $1.00K–$15.0K
- Jul 5, 2024: Jared Moskowitz bought $1.00K–$15.0K
- Sep 1, 2023: Jared Moskowitz bought $1.00K–$15.0K
5%+ owners
- BlackRock, Inc.: 8.7% (Schedule 13G/A, filed Jul 27, 2026)
- Vanguard Capital Management: 7.5% (Schedule 13G, filed Apr 29, 2026)
- Vanguard Portfolio Management: 5.6% (Schedule 13G, filed Apr 28, 2026)
- Wellington Management Group LLP: 5.5% (Schedule 13G/A, filed Aug 13, 2026)