ATO Atmos Energy Corporation

NYSE
$161.66

Atmos Energy Corporation (ATO) Institutional Ownership

What the institutions did with ATO last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.

Managers compared
12
filed both this quarter and last
Managers holding
11
+1 on the quarter
Buyers
4
2 opened new
Sellers
3
1 sold out entirely
Buyer share
57.1%
of managers who traded it
Breadth
+14.3
net buyers, as a share of those trading

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
EASTERN BANK 48.5K 87.8%
CX Institutional 2.2K 3.9%
Versant Capital Management, Inc 1.2K 2.2%
Rosenberg Matthew Hamilton 1.0K 1.9%
TOMPKINS FINANCIAL CORP 750 1.4%
Central Pacific Bank - Trust Division 635 1.1%
MassMutual Private Wealth & Trust, FSB 434 0.8%
Noble Wealth Management PBC 200 0.4%
Hickory Point Bank & Trust 192 0.3%
GoalVest Advisory LLC 84 0.2%
Planning Strategies Inc. 11 0.0%

Largest changes

Manager Action Previous Current Change
FERGUSON WELLMAN CAPITAL MANAGEMENT, INC Sold Out 2.6K 0 -2.6K
Central Pacific Bank - Trust Division New 0 635 +635
CX Institutional Increased 1.9K 2.2K +315
EASTERN BANK Reduced 48.8K 48.5K -306
MassMutual Private Wealth & Trust, FSB Reduced 523 434 -89
GoalVest Advisory LLC New 0 84 +84
Versant Capital Management, Inc Increased 1.1K 1.2K +79

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.