ATMOS ENERGY CORP (ATO) Institutional Ownership

ATO is currently held by 3 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $33.05M based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.

The largest disclosed holder is Renaissance Technologies LLC, which reported ownership valued at approximately $30.81M in its March 31, 2026 13F filing. Based on current market prices and the latest disclosed share count, Renaissance Technologies LLC's ATO position is now estimated to be worth approximately $28.30M, representing an estimated loss of -8.16% since the filing period.

Major shareholders tracked on this page include Renaissance Technologies LLC, Sequoia Financial Advisors, Cullen Value Fund, and other prominent asset managers. Collectively, these investors account for approximately 100% of the total disclosed value among the investors covered in this analysis.

This page tracks asset manager ownership trends, hedge fund exposure, portfolio concentration, historical 13F filings, and estimated holding performance to help investors analyze smart money sentiment toward ATMOS ENERGY CORP (ATO).

Institutional Ownership Trend

Portfolio quarterInstitutional holdersTotal reported valueTotal shares
Q1 20263$33,047,390178,905
Q4 20253$10,974,16365,474
Q3 20253$14,587,03985,434
Q2 20253$4,872,50831,617
Q1 20253$15,711,073101,637
Q4 20243$2,847,66920,447
Q3 20241$6,880,01649,600
Q2 20242$25,827,360221,409
Q1 20242$1,91916,140
Q4 20231$3172,733
Q3 20222$39,289385,756
Q2 20221$43,584388,800
ATO Institutional Ownership and 13F Activity Q1 2026 | InsiderSet