John S Mcdill

Insider

First SEC filing: Nov. 3, 2021 · Latest: May 4, 2026

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

ATO selling Oct. 14, 2022

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 30 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

30 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 2, 2026	ATO	M	2,815	—	—	4,195 Direct	-40.16%	Disposed	(price as of 2026-08-19)
May 2, 2026	ATO	F	1,042	$189.74	$197,709	36,372 Direct	-2.79%	Disposed	-9.8% (price as of 2026-08-19)
May 2, 2026	ATO	M	2,815	$189.74	$534,118	37,414 Direct	+8.14%	Acquired	-9.8% (price as of 2026-08-19)
Feb. 3, 2026	ATO	A	1,240	$168.06	$208,394	7,010 Direct	+21.49%	Acquired	1.8% (price as of 2026-08-19)
Nov. 4, 2025	ATO	F	2,124	$172.96	$367,367	34,594 Direct	-5.78%	Disposed	-1.1% (price as of 2026-08-19)
Nov. 4, 2025	ATO	M	5,396	$172.96	$933,292	36,718 Direct	+17.23%	Acquired	-1.1% (price as of 2026-08-19)
May 2, 2025	ATO	M	2,505	—	—	5,770 Direct	-30.27%	Disposed	(price as of 2026-08-19)
May 2, 2025	ATO	F	927	$160.66	$148,932	31,317 Direct	-2.87%	Disposed	6.5% (price as of 2026-08-19)
May 2, 2025	ATO	M	2,505	$160.66	$402,453	32,244 Direct	+8.42%	Acquired	6.5% (price as of 2026-08-19)
Feb. 4, 2025	ATO	A	1,455	$142.36	$207,134	8,275 Direct	+21.33%	Acquired	20.2% (price as of 2026-08-19)
Nov. 5, 2024	ATO	F	1,806	$137.32	$248,000	29,734 Direct	-5.73%	Disposed	24.6% (price as of 2026-08-19)
Nov. 5, 2024	ATO	M	4,588	$137.32	$630,024	31,540 Direct	+17.02%	Acquired	24.6% (price as of 2026-08-19)
May 7, 2024	ATO	A	1,500	$119.86	$179,790	6,820 Direct	+28.20%	Acquired	42.8% (price as of 2026-08-19)
May 3, 2024	ATO	M	1,600	—	—	5,320 Direct	-23.12%	Disposed	(price as of 2026-08-19)
May 3, 2024	ATO	F	592	$119.09	$70,501	26,946 Direct	-2.15%	Disposed	43.7% (price as of 2026-08-19)
May 3, 2024	ATO	M	1,600	$119.09	$190,544	27,538 Direct	+6.17%	Acquired	43.7% (price as of 2026-08-19)
Nov. 8, 2023	ATO	F	1,260	$108.60	$136,836	25,579 Direct	-4.69%	Disposed	57.6% (price as of 2026-08-19)
Nov. 8, 2023	ATO	M	3,200	$108.60	$347,520	26,839 Direct	+13.54%	Acquired	57.6% (price as of 2026-08-19)
May 5, 2023	ATO	M	1,300	—	—	6,920 Direct	-15.82%	Disposed	(price as of 2026-08-19)
May 5, 2023	ATO	F	481	$117.92	$56,720	23,333 Direct	-2.02%	Disposed	45.1% (price as of 2026-08-19)
May 5, 2023	ATO	M	1,300	$117.92	$153,296	23,814 Direct	+5.77%	Acquired	45.1% (price as of 2026-08-19)
May 3, 2023	ATO	A	2,815	$113.83	$320,431	8,220 Direct	+52.08%	Acquired	50.3% (price as of 2026-08-19)
Nov. 8, 2022	ATO	F	797	$104.53	$83,310	22,230 Direct	-3.46%	Disposed	63.7% (price as of 2026-08-19)
Nov. 8, 2022	ATO	M	2,132	$104.53	$222,858	23,027 Direct	+10.20%	Acquired	63.7% (price as of 2026-08-19)
Oct. 14, 2022	ATO	S	2	$101.04	$202	20,895 Direct	-0.01%	Disposed	69.3% (price as of 2026-08-19)
May 6, 2022	ATO	M	770	—	—	5,405 Direct	-12.47%	Disposed	(price as of 2026-08-19)
May 6, 2022	ATO	F	270	$114.33	$30,869	20,655 Direct	-1.29%	Disposed	49.7% (price as of 2026-08-19)
May 6, 2022	ATO	M	770	$114.33	$88,034	20,925 Direct	+3.82%	Acquired	49.7% (price as of 2026-08-19)
May 3, 2022	ATO	A	2,505	$113.26	$283,716	6,175 Direct	+68.26%	Acquired	51.1% (price as of 2026-08-19)
Nov. 10, 2021	ATO	M	1,250	$93.98	$117,475	20,364 Direct	+6.54%	Acquired	82.1% (price as of 2026-08-19)
Nov. 10, 2021	ATO	F	467	$93.98	$43,889	19,897 Direct	-2.29%	Disposed	82.1% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 2, 2026	ATO	Restricted Stock Unit	Common Stock (2,815)	—	—	2,815	Disposed
Feb. 3, 2026	ATO	Restricted Stock Unit	Common Stock (1,240)	—	—	1,240	Acquired
May 2, 2025	ATO	Restricted Stock Unit	Common Stock (2,505)	—	—	2,505	Disposed
Feb. 4, 2025	ATO	Restricted Stock Unit	Common Stock (1,455)	—	—	1,455	Acquired
May 7, 2024	ATO	Restricted Stock Unit	Common Stock (1,500)	—	—	1,500	Acquired
May 3, 2024	ATO	Restricted Stock Unit	Common Stock (1,600)	—	—	1,600	Disposed
May 5, 2023	ATO	Restricted Stock Unit	Common Stock (1,300)	—	—	1,300	Disposed
May 3, 2023	ATO	Restricted Stock Unit	Common Stock (2,815)	—	—	2,815	Acquired
May 6, 2022	ATO	Restricted Stock Unit	Common Stock (770)	—	—	770	Disposed
May 3, 2022	ATO	Restricted Stock Unit	Common Stock (2,505)	—	—	2,505	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Nov. 3, 2021	ATO	Common Stock	—	Direct
Oct. 18, 2021	ATO	Common Stock	18,374	Direct
Oct. 18, 2021	ATO	Common Stock	1,935	Indirect
Oct. 18, 2021	ATO	Restricted Stock Unit→ Common Stock (3,670)	3,670	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

ATO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$535,193	—	—	—	$572,367	$112,869	$269,523	$2,318,487
2024	$489,644	—	—	—	$471,851	$181,154	$229,297	$2,090,507
2023	$457,725	—	—	—	$366,171	$76,763	$217,959	$1,759,481

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.