Comparable stake leader
BlackRock, Inc.
SEC ownership of ATMOS ENERGY CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000731802.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- ATO on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000731802
- Issuer location
- Dallas, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ATMOS ENERGY CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 8.7%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 8.7%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
8.7%
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
WELLINGTON MANAGEMENT GROUP LLP
6.5%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.6%
Aristotle Capital Management, LLC
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
8.7%
from 13D/G
|
$3,223,726,654
17,451,963 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$2,303,127,751
12,468,210 shares
|
$0 | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
6.5%
|
$1,787,384,363
10,467,844 shares
|
-$316,599,186 | 30 Sep 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.6%
|
$1,718,824,218
9,305,025 shares
|
$0 | 31 Mar 2026 |
| Aristotle Capital Management, LLC |
13D/G
13F
Company
|
4.9%
|
$1,245,219,504
7,797,730 shares
|
$0 | 31 Mar 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
13F
T. Rowe Price Associates, Inc. · Company
|
4.9%
|
$1,177,266,359
7,745,683 shares
|
-$21,239,235 | 30 Jun 2025 |
| Capital International Investors |
13D/G
13F
Company
|
4.7%
|
$1,429,737,049
7,740,023 shares
|
-$516,203,180 | 31 Mar 2026 |
| Richard A. Sampson |
3/4/5
Director
|
0.02%
|
$11,711,760
41,767 shares
mixed-class rows
|
— | 04 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$77,018.
Buys
$0
Insiders: 0
Sells
$77,018
Insiders: 1
Net
-$77,018
Shares: -450
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 450
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 450 | $0 | $77,018 | -$77,018 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 25 reporting-owner rows connected to ATMOS ENERGY CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
25
Largest Forms 3/4/5 holder
John K. Akers
Net 12M change
-$77,018
Latest report
01 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John K. Akers | PRESIDENT & CEO, Director | $34,816,327 | Mixed | 02 May 2026 | ||
| Kim R. Cocklin | Director | $28,892,096 | Mixed | 06 Mar 2026 | ||
| Forsythe Christopher T. | Sr Vice President & Cfo | $13,434,943 | Mixed | 02 May 2026 | ||
| Richard K. Gordon | Director | $11,861,686 | Mixed | 05 Feb 2025 | ||
| Richard A. Sampson | Director | $11,711,760 | Mixed | 04 Feb 2026 | ||
| Nancy K. Quinn | Director | $10,725,374 | Mixed | 06 Mar 2026 | ||
| John S. Mcdill | Sr Vp, Utility Operations | $8,296,379 | Mixed | 02 May 2026 | ||
| Karen E. Hartsfield | Senior Advisor | $7,617,361 | Mixed | 02 May 2026 | ||
| J. Matt Robbins | Sr Vp, Human Resources | $6,774,781 | Mixed | 02 May 2026 | ||
| Stephen R. Springer | Director | $6,189,754 | Mixed | 01 Dec 2021 | ||
| William James Ware | Director | $4,062,512 | Mixed | 06 Mar 2026 | ||
| Rafael G. Garza | Director | $3,189,370 | Mixed | 01 Jul 2026 | ||
| Kelly H. Compton | Director | $2,795,368 | Mixed | 06 Mar 2026 | ||
| Richard Ware II | Director | $2,196,637 | Mixed | 01 Oct 2021 | ||
| Jessica Walker Bateman | Sr VP, Gen Counsel, Corp Sec'y | $1,538,500 | Mixed | 03 Feb 2026 | ||
| Diana J. Walters | Director | $1,495,553 | Mixed | 05 Feb 2025 | ||
| Sean Donohue | Director | $1,432,353 | -$77,018 | -5.1% | Mixed | 06 Mar 2026 |
| Frank H. Yoho | Director | $1,213,227 | Mixed | 06 Mar 2026 | ||
| Robert C. Grable | Director | $1,152,457 | Mixed | 03 Jan 2022 | ||
| John C. Ale | Director | $902,777 | Mixed | 06 Mar 2026 |
Recent insider transactions for ATMOS ENERGY CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Edward Geiser | ATO | Phantom Deferred Compensation | Award | 12.5% | 188 | 1,689 | 01 Jul 2026 | Direct | ||
| Rafael G. Garza | ATO | Common Stock | Award | 33.8% | 65 | 257 | 01 Jul 2026 | Direct | ||
| J. Matt Robbins | ATO | Common Stock | Tax liability | -3.67% | -1,042 | 27,366 | 02 May 2026 | Direct | ||
| J. Matt Robbins | ATO | Common Stock | Options Exercise | 11% | 2,815 | 28,408 | 02 May 2026 | Direct | ||
| J. Matt Robbins | ATO | Restricted Stock Unit | Options Exercise | -40.2% | -2,815 | 4,195 | 02 May 2026 | Direct | ||
| John S. Mcdill | ATO | Common Stock | Tax liability | -2.79% | -1,042 | 36,372 | 02 May 2026 | Direct | ||
| John S. Mcdill | ATO | Common Stock | Options Exercise | 8.14% | 2,815 | 37,414 | 02 May 2026 | Direct | ||
| John S. Mcdill | ATO | Restricted Stock Unit | Options Exercise | -40.2% | -2,815 | 4,195 | 02 May 2026 | Direct | ||
| Karen E. Hartsfield | ATO | Common Stock | Tax liability | -3.06% | -1,042 | 32,986 | 02 May 2026 | Direct | ||
| Karen E. Hartsfield | ATO | Common Stock | Options Exercise | 9.02% | 2,815 | 34,028 | 02 May 2026 | Direct | ||
| Karen E. Hartsfield | ATO | Restricted Stock Unit | Options Exercise | -40.2% | -2,815 | 4,195 | 02 May 2026 | Direct | ||
| Forsythe Christopher T. | ATO | Common Stock | Tax liability | -2.46% | -1,563 | 62,022 | 02 May 2026 | Direct | ||
| Forsythe Christopher T. | ATO | Common Stock | Options Exercise | 6.66% | 3,970 | 63,585 | 02 May 2026 | Direct | ||
| Forsythe Christopher T. | ATO | Restricted Stock Unit | Options Exercise | -39% | -3,970 | 6,220 | 02 May 2026 | Direct | ||
| Michelle Faulk | ATO | Common Stock | Tax liability | -5.5% | -70 | 1,202 | 02 May 2026 | Direct | ||
| Michelle Faulk | ATO | Common Stock | Options Exercise | 16% | 175 | 1,272 | 02 May 2026 | Direct | ||
| Michelle Faulk | ATO | Restricted Stock Unit | Options Exercise | -21.2% | -175 | 650 | 02 May 2026 | Direct | ||
| John K. Akers | ATO | Common Stock | Tax liability | -4.38% | -6,235 | 135,979 | 02 May 2026 | Direct | ||
| John K. Akers | ATO | Common Stock | Options Exercise | 13.4% | 16,850 | 142,214 | 02 May 2026 | Direct | ||
| John K. Akers | ATO | Restricted Stock Unit | Options Exercise | -39% | -16,850 | 26,365 | 02 May 2026 | Direct | ||
| Rafael G. Garza | ATO | Common Stock | Award | 45.4% | 60 | 192 | 01 Apr 2026 | Direct | ||
| Edward Geiser | ATO | Phantom Deferred Compensation | Award | 13.3% | 176 | 1,492 | 01 Apr 2026 | Direct | ||
| Kim R. Cocklin | ATO | Common Stock | Options Exercise | 0.63% | 1,082 | 173,714 | 07 Mar 2026 | Direct | ||
| Kim R. Cocklin | ATO | Restricted Stock Unit | Options Exercise | -100% | -1,082 | 0 | 07 Mar 2026 | Direct | ||
| Kelly H. Compton | ATO | Common Stock | Options Exercise | 15.7% | 1,082 | 7,959 | 07 Mar 2026 | Direct | ||
| Kelly H. Compton | ATO | Restricted Stock Unit | Options Exercise | -54% | -1,082 | 920 | 07 Mar 2026 | Direct | ||
| John C. Ale | ATO | Common Stock | Options Exercise | 1,082 | 1,082 | 07 Mar 2026 | Direct | |||
| John C. Ale | ATO | Restricted Stock Unit | Options Exercise | -54% | -1,082 | 920 | 07 Mar 2026 | Direct | ||
| Edward Geiser | ATO | Phantom Stock Units | Award | 43.2% | 920 | 3,051 | 06 Mar 2026 | Direct | ||
| Rafael G. Garza | ATO | Phantom Stock Units | Award | 4.23% | 920 | 22,666 | 06 Mar 2026 | Direct | ||
| Sean Donohue | ATO | Phantom Stock Units | Award | 10.4% | 920 | 9,792 | 06 Mar 2026 | Direct | ||
| Mitzi H. Coogler | ATO | Phantom Stock Units | Award | 920 | 920 | 06 Mar 2026 | Direct | |||
| Frank H. Yoho | ATO | Phantom Stock Units | Award | 11% | 920 | 9,313 | 06 Mar 2026 | Direct | ||
| William James Ware | ATO | Phantom Stock Units | Award | 920 | 920 | 06 Mar 2026 | Direct | |||
| Telisa Toliver | ATO | Phantom Stock Units | Award | 43.2% | 920 | 3,051 | 06 Mar 2026 | Direct | ||
| Nancy K. Quinn | ATO | Phantom Stock Units | Award | 1.37% | 920 | 67,991 | 06 Mar 2026 | Direct | ||
| Kim R. Cocklin | ATO | Phantom Stock Units | Award | 920 | 920 | 06 Mar 2026 | Direct | |||
| Kelly H. Compton | ATO | Restricted Stock Unit | Award | 85% | 920 | 2,002 | 06 Mar 2026 | Direct | ||
| John C. Ale | ATO | Restricted Stock Unit | Award | 85% | 920 | 2,002 | 06 Mar 2026 | Direct | ||
| Richard A. Sampson | ATO | Common Stock | Conversion of derivative security | 306.5% | 31,493 | 41,767 | 04 Feb 2026 | Direct | ||
| Richard A. Sampson | ATO | Phantom Deferred Compensation | Conversion of derivative security | -100% | -685 | 0 | 04 Feb 2026 | Direct | ||
| Richard A. Sampson | ATO | Phantom Stock Units | Conversion of derivative security | -100% | -30,808 | 0 | 04 Feb 2026 | Direct | ||
| Jessica Walker Bateman | ATO | Restricted Stock Unit | Award | 19.2% | 1,240 | 7,695 | 03 Feb 2026 | Direct | ||
| Michelle Faulk | ATO | Restricted Stock Unit | Award | 46% | 260 | 825 | 03 Feb 2026 | Direct | ||
| John S. Mcdill | ATO | Restricted Stock Unit | Award | 21.5% | 1,240 | 7,010 | 03 Feb 2026 | Direct | ||
| Karen E. Hartsfield | ATO | Restricted Stock Unit | Award | 21.5% | 1,240 | 7,010 | 03 Feb 2026 | Direct | ||
| J. Matt Robbins | ATO | Restricted Stock Unit | Award | 21.5% | 1,240 | 7,010 | 03 Feb 2026 | Direct | ||
| John K. Akers | ATO | Restricted Stock Unit | Award | 21.9% | 7,760 | 43,215 | 03 Feb 2026 | Direct | ||
| Forsythe Christopher T. | ATO | Restricted Stock Unit | Award | 22.9% | 1,900 | 10,190 | 03 Feb 2026 | Direct | ||
| Jessica Walker Bateman | ATO | Common Stock | Tax liability | -41.7% | -1,042 | 1,458 | 02 Jan 2026 | Direct |
* marks a reported price that did not pass the local price check.