Stephen R Springer

Insider

First SEC filing: Sept. 1, 2005 · Latest: Sept. 1, 2005

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.

Insider at

ATO buying Nov. 18, 2005

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 41 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

41 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 2, 2021	ATO	C	113	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Dec. 2, 2021	ATO	C	113	$91.62	$10,353	53,201 Direct	+0.21%	Acquired	86.8% (price as of 2026-08-19)
Dec. 1, 2021	ATO	C	50,543	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Dec. 1, 2021	ATO	C	1,170	—	—	113 Direct	-91.19%	Disposed	(price as of 2026-08-19)
Dec. 1, 2021	ATO	C	50,543	$91.62	$4,630,750	53,088 Direct	+1985.97%	Acquired	86.8% (price as of 2026-08-19)
Dec. 1, 2021	ATO	C	1,170	$91.62	$107,195	2,545 Direct	+85.09%	Acquired	86.8% (price as of 2026-08-19)
Oct. 1, 2021	ATO	A	113	$88.53	$10,004	1,283 Direct	+9.66%	Acquired	93.3% (price as of 2026-08-19)
July 1, 2021	ATO	A	104	$96.54	$10,040	1,162 Direct	+9.83%	Acquired	77.2% (price as of 2026-08-19)
April 1, 2021	ATO	A	102	$97.97	$9,993	1,052 Direct	+10.74%	Acquired	74.7% (price as of 2026-08-19)
March 6, 2021	ATO	M	1,375	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
March 6, 2021	ATO	M	1,375	$90.79	$124,836	1,375 Direct	—	Acquired	88.5% (price as of 2026-08-19)
March 6, 2021	ATO	M	1,375	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
March 6, 2021	ATO	M	1,375	$90.79	$124,836	2,375 Indirect	+137.50%	Acquired	88.5% (price as of 2026-08-19)
March 5, 2021	ATO	A	1,652	$90.79	$149,985	49,567 Direct	+3.45%	Acquired	88.5% (price as of 2026-08-19)
Jan. 4, 2021	ATO	A	105	$94.81	$9,955	944 Direct	+12.51%	Acquired	80.5% (price as of 2026-08-19)
Oct. 1, 2020	ATO	A	105	$95.58	$10,036	833 Direct	+14.42%	Acquired	79.0% (price as of 2026-08-19)
July 1, 2020	ATO	A	99	$100.54	$9,953	724 Direct	+15.84%	Acquired	70.2% (price as of 2026-08-19)
April 1, 2020	ATO	A	104	$96.18	$10,003	621 Direct	+20.12%	Acquired	77.9% (price as of 2026-08-19)
March 6, 2020	ATO	A	1,375	$109.09	$149,999	1,375 Direct	—	Acquired	56.9% (price as of 2026-08-19)
Jan. 2, 2020	ATO	A	90	$110.73	$9,966	515 Direct	+21.18%	Acquired	54.5% (price as of 2026-08-19)
Oct. 1, 2019	ATO	A	88	$113.56	$9,993	422 Direct	+26.35%	Acquired	50.7% (price as of 2026-08-19)
Oct. 1, 2019	ATO	A	88	$114.12	$10,043	422 Direct	+26.35%	Acquired	49.9% (price as of 2026-08-19)
July 1, 2019	ATO	A	95	$105.01	$9,976	332 Direct	+40.08%	Acquired	62.9% (price as of 2026-08-19)
April 1, 2019	ATO	A	98	$102.24	$10,020	236 Direct	+71.01%	Acquired	67.4% (price as of 2026-08-19)
March 8, 2019	ATO	A	1,504	$99.73	$149,994	45,863 Direct	+3.39%	Acquired	71.6% (price as of 2026-08-19)
Jan. 2, 2019	ATO	A	137	$91.02	$12,470	137 Direct	—	Acquired	88.0% (price as of 2026-08-19)
March 9, 2018	ATO	A	3,000	$79.80	$239,400	43,394 Direct	+7.43%	Acquired	114.4% (price as of 2026-08-19)
March 10, 2017	ATO	A	3,000	$77.19	$231,570	39,537 Direct	+8.21%	Acquired	121.7% (price as of 2026-08-19)
March 4, 2016	ATO	A	3,000	$70.11	$210,330	35,696 Direct	+9.18%	Acquired	144.1% (price as of 2026-08-19)
March 6, 2015	ATO	A	3,000	$52.43	$157,290	31,760 Direct	+10.43%	Acquired	226.4% (price as of 2026-08-19)
March 7, 2014	ATO	A	3,000	—	—	27,919 Direct	+12.04%	Acquired	(price as of 2026-08-19)
March 15, 2013	ATO	A	3,000	—	—	24,092 Direct	+14.22%	Acquired	(price as of 2026-08-19)
March 9, 2012	ATO	A	3,000	—	—	20,255 Direct	+17.39%	Acquired	(price as of 2026-08-19)
March 11, 2011	ATO	A	3,000	—	—	16,568 Direct	+22.11%	Acquired	(price as of 2026-08-19)
March 5, 2010	ATO	A	3,000	—	—	12,994 Direct	+30.02%	Acquired	(price as of 2026-08-19)
March 6, 2009	ATO	A	2,500	—	—	9,542 Direct	+35.50%	Acquired	(price as of 2026-08-19)
March 7, 2008	ATO	A	2,500	—	—	6,725 Direct	+59.17%	Acquired	(price as of 2026-08-19)
May 10, 2007	ATO	G	1,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 10, 2007	ATO	G	1,000	—	—	1,000 Indirect	—	Acquired	(price as of 2026-08-19)
March 9, 2007	ATO	A	2,000	—	—	4,065 Direct	+96.85%	Acquired	(price as of 2026-08-19)
March 10, 2006	ATO	A	2,000	—	—	2,000 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 18, 2005	ATO	P	300	$26.37	$7,911	300 Direct	—	Acquired	548.9% (price as of 2026-08-19)
Nov. 18, 2005	ATO	P	700	$26.36	$18,452	1,000 Direct	+233.33%	Acquired	549.1% (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
Dec. 2, 2021	ATO	Phantom Deferred Compensation	Common Stock (113)	—	—	113	Disposed
Dec. 1, 2021	ATO	Phantom Stock Units	Common Stock (50,543)	—	—	50,543	Disposed
Dec. 1, 2021	ATO	Phantom Deferred Compensation	Common Stock (1,170)	—	—	1,170	Disposed
Oct. 1, 2021	ATO	Phantom Deferred Compensation	Common Stock (113)	—	—	113	Acquired
July 1, 2021	ATO	Phantom Deferred Compensation	Common Stock (104)	—	—	104	Acquired
April 1, 2021	ATO	Phantom Deferred Compensation	Common Stock (102)	—	—	102	Acquired
March 6, 2021	ATO	Restricted Stock Unit	Common Stock (1,375)	—	—	1,375	Disposed
March 6, 2021	ATO	Restricted Stock Unit	Common Stock (1,375)	—	—	1,375	Disposed
March 5, 2021	ATO	Phantom Stock Units	Common Stock (1,652)	—	—	1,652	Acquired
Jan. 4, 2021	ATO	Phantom Deferred Compensation	Common Stock (105)	—	—	105	Acquired
Oct. 1, 2020	ATO	Phantom Deferred Compensation	Common Stock (105)	—	—	105	Acquired
July 1, 2020	ATO	Phantom Deferred Compensation	Common Stock (99)	—	—	99	Acquired
April 1, 2020	ATO	Phantom Deferred Compensation	Common Stock (104)	—	—	104	Acquired
March 6, 2020	ATO	Restricted Stock Unit	Common Stock (1,375)	—	—	1,375	Acquired
Jan. 2, 2020	ATO	Phantom Deferred Compensation	Common Stock (90)	—	—	90	Acquired
Oct. 1, 2019	ATO	Phantom Deferred Compensation	Common Stock (88)	—	—	88	Acquired
Oct. 1, 2019	ATO	Phantom Deferred Compensation	Common Stock (88)	—	—	88	Acquired
July 1, 2019	ATO	Phantom Deferred Compensation	Common Stock (95)	—	—	95	Acquired
April 1, 2019	ATO	Phantom Deferred Compensation	Common Stock (98)	—	—	98	Acquired
March 8, 2019	ATO	Phantom Stock Units	Common Stock (1,504)	—	—	1,504	Acquired
Jan. 2, 2019	ATO	Phantom Deferred Compensation	Common Stock (137)	—	—	137	Acquired
March 9, 2018	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 10, 2017	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 4, 2016	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 6, 2015	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 7, 2014	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 15, 2013	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 9, 2012	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 11, 2011	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 5, 2010	ATO	Phantom Stock Units	Common Stock (3,000)	—	—	3,000	Acquired
March 6, 2009	ATO	Phantom Stock Units	Common Stock (2,500)	—	—	2,500	Acquired
March 7, 2008	ATO	Phantom Stock Units	Common Stock (2,500)	—	—	2,500	Acquired
March 9, 2007	ATO	Phantom Stock Units	Common Stock (2,000)	—	—	2,000	Acquired
March 10, 2006	ATO	Phantom Stock Units	Common Stock (2,000)	—	—	2,000	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Sept. 1, 2005	ATO	No Securities Beneficially Owned [F1]	0	Direct