ATO Institutional Ownership
Who owns Atmos Energy Corp and what the big funds did with it last quarter, from every SEC 13F filing. 1,043 funds reported holding ATO at Jun 30, 2026, together owning 96.5% of the company.
- ▲532 buying vs 437 selling
- ▲Held by funds +1.8 pts
- ▲Funds holding +21
- ▲Superinvestors: 5 added, 0 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 1,043 | 1,022 | +2.1% |
| In funds' top 10 | 12 | 9 | +33.3% |
| 13F shares | 163M | 160M | +1.9% |
| Held by funds | 96.5% | 94.7% | +1.8 pts |
| New positions | 122 | 127 | −3.9% |
| Increased | 410 | 405 | +1.2% |
| Reduced | 339 | 302 | +12.3% |
| Sold out | 98 | 88 | +11.4% |
| Calls (shares) | 9,900 | 18K | −46.2% |
| Puts (shares) | 1,548 | 1,400 | +10.6% |
| Put/call ratio | 0.16 | 0.08 | +104.7% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in ATO
All superinvestors →
Who owns ATO
share of fund held shares- Index and passive funds38.3%
- Active managers and hedge funds41.5%
- Banks and brokers15.8%
- Pensions, insurers and other4.4%
The top 10 holders own 48.0% of all ATO shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
338 funds changed their position- Munich Reinsurance Co Stock Corp in MunichSold out−252K sh
- Creative PlanningAdded+138K sh
- Assenagon Asset Management S.A.Trimmed−62K sh
- Principal Financial Group IncAdded+55K sh
- Wealth Enhancement Advisory Services, LLCAdded+52K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.02% | 15.2M | $2.6B | −2.2M |
| 2 | State Street Corp | 6.73% | 11.4M | $2B | +7,310 |
| 3 | Vanguard Capital Management LLC | 6.44% | 10.9M | $1.9B | +150K |
| 4 | Vanguard Portfolio Management LLC | 5.54% | 9.4M | $1.6B | +75K |
| 5 | Wellington Management Group LLP | 5.44% | 9.2M | $1.6B | −466K |
| 6 | Capital International Investors | 4.43% | 7.5M | $1.3B | +156K |
| 7 | Geode Capital Management, LLC | 2.66% | 4.5M | $770M | +152K |
| 8 | Bank of America Corp /de/ | 2.47% | 4.2M | $720M | −19K |
| 9 | Invesco Ltd. | 1.88% | 3.2M | $547M | +166K |
| 10 | Morgan Stanley | 1.69% | 2.9M | $493M | −137K |
- Norges Bank+2.1M sh+$358M
- Qube Research & Technologies Ltd+2.1M sh+$354M
- AQR Capital Management LLC+1.6M sh+$267M
- Point72 Asset Management, L.P.+1.4M sh+$234M
- Citadel Advisors LLC+985K sh+$170M
- SG Americas Securities, LLC+669K sh+$115M
- Ontario Teachers Pension Plan Board+586K sh+$101M
- Fmr LLC+535K sh+$92.2M
- Aristotle Capital Management, LLC−4.8M sh−$833M
- Capital Research Global Investors−2.5M sh−$431M
- BlackRock, Inc.−2.2M sh−$381M
- Wellington Management Group LLP−466K sh−$80.2M
- Sei Investments Co−320K sh−$55.2M
- California State Teachers Retirement System−281K sh−$48.4M
- T. Rowe Price Investment Management, Inc.−244K sh−$42M
- Jpmorgan Chase & Co−235K sh−$41.2M
ATO institutional ownership FAQ
Who owns the most ATO stock?
In Q2 2026 13F filings the largest holder of ATO was BlackRock, Inc., followed by State Street Corp and Vanguard Capital Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of ATO is owned by institutions?
Funds that file 13F reports held 96.5% of ATO's shares at Jun 30, 2026, compared with 94.7% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying ATO?
In Q2 2026, 532 funds bought ATO (122 of them new positions) and 437 sold (98 sold out completely). Among well known investors, 5 added and 0 cut. Our fund sentiment for ATO is strongly bullish.
What is ATO's institutional put/call ratio?
Funds reported $266K of ATO puts against $1.7M of calls, a put/call ratio of 0.16 (0.08 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this ATO ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.