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
7/50
Latest evidence
30 Jun 2026
- Public ticker
- ATO on NYSE
- Parsed ownership sources
-
13F and 13D/G
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
-
7 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
-
30 Jun 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
7/50
Latest evidence
30 Jun 2026
13F
13D/G
Lead comparable stake: 8.7%
43 rows are not safely comparable across share classes.
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%.
7 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%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.6%
WELLINGTON MANAGEMENT GROUP LLP
5.5%
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%
Reported 13D/G
· 30 Jun 2026
|
$2,624,975,204
15,237,564 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
Reported 13D/G
· 31 Mar 2026
|
$2,303,127,751
12,468,210 shares
|
$0 | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.6%
Reported 13D/G
· 31 Mar 2026
|
$1,718,824,218
9,305,025 shares
|
$0 | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
5.5%
Reported 13D/G
· 30 Jun 2026
|
$1,626,712,968
9,185,798 shares
|
-$227,037,526 | 30 Jun 2026 |
| Aristotle Capital Management, LLC |
13D/G
|
4.9%
Reported 13D/G
· 31 Mar 2025
|
$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%
Reported 13D/G
· 30 Jun 2025
|
$1,177,266,359
7,745,683 shares
|
-$21,239,235 | 30 Jun 2025 |
| Capital International Investors |
13D/G
13F
Company
|
4.7%
Reported 13D/G
· 31 Mar 2026
|
$1,429,737,049
7,740,023 shares
|
-$516,203,180 | 31 Mar 2026 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$1,960,442,936
11,380,060 shares
|
— | 30 Jun 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: -$26,739.
Buys
$50,278
Insiders: 1
Sells
$77,018
Insiders: 1
Net
-$26,739
Shares: -150
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 300
Shares: 450
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 300 | 0 | $50,278 | $0 | +$50,278 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 450 | $0 | $77,018 | -$77,018 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 27 reporting-owner rows connected to ATMOS ENERGY CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
27
Largest Forms 3/4/5 holder
John K. Akers
Net 12M change
-$26.74K
Full value: -$26,740 · USD · 12-month changeLatest report
03 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John K. Akers | PRESIDENT & CEO, Director | $36,037,296 | Mixed | 03 Nov 2026 | ||
| Kim R. Cocklin | Director | $28,892,096 | Mixed | 06 Mar 2026 | ||
| Forsythe Christopher T. | Sr Vice President & Cfo | $12,834,574 | Mixed | 03 Nov 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 | $8,064,421 | Mixed | 03 Nov 2026 | ||
| Karen E. Hartsfield | Senior Advisor | $7,492,117 | Mixed | 03 Nov 2026 | ||
| J. Matt Robbins | Sr Vp, Human Resources | $6,541,677 | Mixed | 03 Nov 2026 | ||
| Stephen R. Springer | Director | $6,189,754 | Mixed | 01 Dec 2021 | ||
| William James Ware | Director | $4,224,362 | +$50,278 | +1.2% | Mixed | 11 Aug 2026 |
| Rafael G. Garza | Director | $3,199,435 | Mixed | 01 Oct 2026 | ||
| Kelly H. Compton | Director | $2,795,368 | Mixed | 06 Mar 2026 | ||
| Richard Ware II | Director | $2,196,637 | Mixed | 01 Oct 2021 | ||
| Jeffery D. Martinez | Sr Vp, Utility Operations | $1,737,891 | Median | 03 Nov 2026 | ||
| 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Jeffery D. Martinez | ATO | Common Stock | Tax liability | -15.6% | -1,574 | 8,509 | 03 Nov 2026 | Direct | ||
| Jeffery D. Martinez | ATO | Common Stock | Options Exercise | 65.8% | 4,000 | 10,083 | 03 Nov 2026 | Direct | ||
| J. Matt Robbins | ATO | Common Stock | Tax liability | -10.2% | -3,538 | 31,318 | 03 Nov 2026 | Direct | ||
| J. Matt Robbins | ATO | Common Stock | Options Exercise | 34.8% | 8,990 | 34,856 | 03 Nov 2026 | Direct | ||
| John S. Mcdill | ATO | Common Stock | Options Exercise | -7.8% | -3,538 | 41,830 | 03 Nov 2026 | Direct | ||
| John S. Mcdill | ATO | Common Stock | Options Exercise | 24.7% | 8,990 | 45,368 | 03 Nov 2026 | Direct | ||
| Karen E. Hartsfield | ATO | Common Stock | Tax liability | -8.43% | -3,538 | 38,438 | 03 Nov 2026 | Direct | ||
| Karen E. Hartsfield | ATO | Common Stock | Options Exercise | 27.2% | 8,990 | 41,976 | 03 Nov 2026 | Direct | ||
| Forsythe Christopher T. | ATO | Common Stock | Tax liability | -6.63% | -4,943 | 69,639 | 03 Nov 2026 | Direct | ||
| Forsythe Christopher T. | ATO | Common Stock | Options Exercise | 20.2% | 12,560 | 74,582 | 03 Nov 2026 | Direct | ||
| Michelle Faulk | ATO | Common Stock | Tax liability | -10.4% | -179 | 1,550 | 03 Nov 2026 | Direct | ||
| Michelle Faulk | ATO | Common Stock | Options Exercise | 43% | 520 | 1,729 | 03 Nov 2026 | Direct | ||
| John K. Akers | ATO | Common Stock | Tax liability | -11.6% | -22,458 | 170,591 | 03 Nov 2026 | Direct | ||
| John K. Akers | ATO | Common Stock | Options Exercise | 42% | 57,070 | 193,049 | 03 Nov 2026 | Direct | ||
| Edward Geiser | ATO | Phantom Deferred Compensation | Award | 13.2% | 225 | 1,923 | 01 Oct 2026 | Direct | ||
| Rafael G. Garza | ATO | Common Stock | Award | 30% | 77 | 334 | 01 Oct 2026 | Direct | ||
| J. Matt Robbins | ATO | Common Stock | Gift | -5.48% | -1,500 | 25,866 | 15 Sep 2026 | Direct | ||
| James Henry Jeffries IV | ATO | Phantom Stock Units | Award | 1,000 | 1,000 | 01 Sep 2026 | Direct | |||
| William James Ware | ATO | Common Stock | Purchase | 159.6% | $50,278 | $167.59 | 300 | 488 | 11 Aug 2026 | Direct |
| 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 |
* marks a reported price that did not pass the local price check.