SEC Form 4
Atmos Energy Corporation (ATO) insider trading
In the 12 months to Oct 24, 2026, one ATO insider reported open-market sales of $77.0K across 1 filing; one director bought $50.3K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $77.0K
- 1 filing · 1 insider
- Open-market purchases
- $50.3K
- 1 filing · William James Ware, Director
Who traded ATO, and when
- Purchase
- Sale
ATO daily close from Oct 24, 2025 to Oct 23, 2026, between $156.24 and $192.29, last $172.21. 1 sale and 1 purchase filings by 2 insiders, marked at their filing dates. Sean Donohue, Director: sold $77.0K across 1 filing, first filed Dec 4, 2025, last Dec 4, 2025. William James Ware, Director: bought $50.3K across 1 filing, first filed Aug 12, 2026, last Aug 12, 2026.
Largest mark · tap a row for others
Sean Donohue · Director
Sale $77,018
450 shares at $171.15 avg
Filed Dec 4, 2025 · traded Dec 3
Close on filing date $170.95
Sean Donohue · Director
Director
$77.0K soldWilliam James Ware · Director
Director
$50.3K boughtHas the Atmos Energy Corporation's CEO sold stock?
No. John K. Akers (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
2 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Sean Donohue | Director | $77.0K | — | 1 | — | |
| William James Ware | Director | — | $50.3K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | William James Ware Director | Purchase | 300 | $167.59 | $50.3K | 488 | |
traded | Sean Donohue Director | Sale | 450 | $171.15 | $77.0K | 877 |
GET /stocks/filings/vX/form-4?tickers=ATO&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ATO"
],
"issuer_cik": "0000731802",
"owner_cik": "0002108889",
"accession_number": "0000731802-26-000104",
"form_type": "4",
"filing_date": "2026-08-12",
"period_of_report": "2026-08-11",
"issuer_name": "ATMOS ENERGY CORP",
"issuer_trading_symbol": "ATO",
"owner_name": "WARE WILLIAM JAMES",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-11",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 300,
"transaction_price_per_share": 167.5945,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 488,
"transaction_value": 50278.350000000006,
"direct_or_indirect": "D"
},
{
"tickers": [
"ATO"
],
"issuer_cik": "0000731802",
"owner_cik": "0001758743",
"accession_number": "0000731802-25-000058",
"form_type": "4",
"filing_date": "2025-12-04",
"period_of_report": "2025-12-03",
"issuer_name": "ATMOS ENERGY CORP",
"issuer_trading_symbol": "ATO",
"owner_name": "DONOHUE SEAN",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2025-12-03",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 450,
"transaction_price_per_share": 171.15,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 876.598,
"transaction_value": 77017.5,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 38 records
- Option exercises16 records
- Tax withholding13 records
- Grants and awards4 records
- Gifts3 records
- Other2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for ATO every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.