Mark A Petrarca

Insider

First SEC filing: March 5, 2024 · Latest: March 5, 2024

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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

AOS selling Nov. 14, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 85 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

85 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 1, 2026	BLD	D	343	—	—	0 Direct	-100.00%	Disposed
July 1, 2026	BLD	D	14,725	—	—	343 Direct	-97.72%	Disposed
April 27, 2026	BLD	A	343	$445.78	$152,903	15,068 Direct	+2.33%	Acquired
April 28, 2025	BLD	A	515	$296.65	$152,775	14,725 Direct	+3.62%	Acquired
April 29, 2024	BLD	A	340	$414.14	$140,808	14,210 Direct	+2.45%	Acquired
Feb. 12, 2024	AOS	A	4,750	—	—	12,905 Direct	+58.25%	Acquired	(price as of 2026-08-20)
Feb. 12, 2024	AOS	A	4,600	—	—	12,755 Direct	+56.41%	Acquired	(price as of 2026-08-20)
Feb. 8, 2024	AOS	M	3,420	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 8, 2024	AOS	F	1,684	$80.28	$135,192	87,407 Direct	-1.89%	Disposed	-20.9% (price as of 2026-08-20)
Feb. 8, 2024	AOS	M	3,420	—	—	89,091 Direct	+3.99%	Acquired	(price as of 2026-08-20)
Nov. 14, 2023	AOS	S	8,000	$75.70	$605,600	85,671 Direct	-8.54%	Disposed	-16.1% (price as of 2026-08-20)
Nov. 13, 2023	AOS	M	11,005	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 13, 2023	AOS	S	11,005	$73.20	$805,566	93,671 Direct	-10.51%	Disposed	-13.2% (price as of 2026-08-20)
Nov. 13, 2023	AOS	M	11,005	$50.16	$552,011	104,676 Direct	+11.75%	Acquired	26.7% (price as of 2026-08-20)
May 1, 2023	BLD	A	640	$222.07	$142,125	13,870 Direct	+4.84%	Acquired
Feb. 13, 2023	AOS	A	5,215	—	—	11,575 Direct	+82.00%	Acquired	(price as of 2026-08-20)
Feb. 10, 2023	AOS	M	3,890	—	—	6,360 Direct	-37.95%	Disposed	(price as of 2026-08-20)
Feb. 10, 2023	AOS	F	1,915	$65.80	$126,007	93,671 Direct	-2.00%	Disposed	-3.4% (price as of 2026-08-20)
Feb. 10, 2023	AOS	M	3,890	—	—	95,586 Direct	+4.24%	Acquired	(price as of 2026-08-20)
May 2, 2022	BLD	A	690	$185.29	$127,850	13,230 Direct	+5.50%	Acquired
Feb. 11, 2022	AOS	M	3,240	—	—	10,250 Direct	-24.02%	Disposed	(price as of 2026-08-20)
Feb. 11, 2022	AOS	F	1,523	$71.72	$109,230	91,696 Direct	-1.63%	Disposed	-11.4% (price as of 2026-08-20)
Feb. 11, 2022	AOS	M	3,240	$71.72	$232,373	93,219 Direct	+3.60%	Acquired	-11.4% (price as of 2026-08-20)
Feb. 7, 2022	AOS	A	2,940	—	—	13,490 Direct	+27.87%	Acquired	(price as of 2026-08-20)
Feb. 7, 2022	AOS	A	12,405	—	—	83,495 Direct	+17.45%	Acquired	(price as of 2026-08-20)
May 3, 2021	BLD	A	560	$229.10	$128,296	3,740 Direct	+17.61%	Acquired
Feb. 12, 2021	AOS	M	2,460	—	—	10,550 Direct	-18.91%	Disposed	(price as of 2026-08-20)
Feb. 12, 2021	AOS	F	1,157	$60.65	$70,172	89,979 Direct	-1.27%	Disposed	4.8% (price as of 2026-08-20)
Feb. 12, 2021	AOS	A	2,460	$60.65	$149,199	91,136 Direct	+2.77%	Acquired	4.8% (price as of 2026-08-20)
Feb. 8, 2021	AOS	A	3,420	—	—	13,010 Direct	+35.66%	Acquired	(price as of 2026-08-20)
Feb. 8, 2021	AOS	A	14,840	—	—	104,500 Direct	+16.55%	Acquired	(price as of 2026-08-20)
April 27, 2020	BLD	A	1,480	—	—	3,180 Direct	+87.06%	Acquired
Feb. 13, 2020	AOS	M	2,860	—	—	9,590 Direct	-22.97%	Disposed	(price as of 2026-08-20)
Feb. 13, 2020	AOS	F	1,345	$43.96	$59,126	88,676 Direct	-1.49%	Disposed	44.5% (price as of 2026-08-20)
Feb. 13, 2020	AOS	A	2,860	$43.96	$125,726	90,021 Direct	+3.28%	Acquired	44.5% (price as of 2026-08-20)
Feb. 10, 2020	AOS	A	3,890	—	—	12,450 Direct	+45.44%	Acquired	(price as of 2026-08-20)
Feb. 10, 2020	AOS	A	20,250	—	—	89,660 Direct	+29.17%	Acquired	(price as of 2026-08-20)
April 29, 2019	BLD	A	1,700	—	—	2,950 Direct	+136.00%	Acquired
Feb. 11, 2019	AOS	A	14,780	—	—	69,410 Direct	+27.05%	Acquired	(price as of 2026-08-20)
Feb. 11, 2019	AOS	A	3,240	—	—	8,560 Direct	+60.90%	Acquired	(price as of 2026-08-20)
Feb. 9, 2019	AOS	F	2,109	$48.72	$102,750	87,161 Direct	-2.36%	Disposed	30.4% (price as of 2026-08-20)
Feb. 8, 2019	AOS	M	4,320	—	—	5,320 Direct	-44.81%	Disposed	(price as of 2026-08-20)
Feb. 8, 2019	AOS	A	4,320	$48.72	$210,470	89,270 Direct	+5.09%	Acquired	30.4% (price as of 2026-08-20)
April 30, 2018	BLD	A	1,250	—	—	3,510 Direct	+55.31%	Acquired
Feb. 12, 2018	AOS	A	10,215	—	—	54,630 Direct	+23.00%	Acquired	(price as of 2026-08-20)
Feb. 12, 2018	AOS	A	2,460	—	—	9,640 Direct	+34.26%	Acquired	(price as of 2026-08-20)
Feb. 9, 2018	AOS	F	2,169	$60.11	$130,379	84,950 Direct	-2.49%	Disposed	5.7% (price as of 2026-08-20)
Feb. 9, 2018	AOS	M	4,470	$60.11	$268,692	87,119 Direct	+5.41%	Acquired	5.7% (price as of 2026-08-20)
Feb. 8, 2018	AOS	M	4,470	—	—	7,180 Direct	-38.37%	Disposed	(price as of 2026-08-20)
Dec. 1, 2017	AOS	S	5,288	$63.14	$333,884	82,649 Direct	-6.01%	Disposed	0.6% (price as of 2026-08-20)
Nov. 30, 2017	AOS	M	16,600	—	—	44,415 Direct	-27.21%	Disposed	(price as of 2026-08-20)
Nov. 30, 2017	AOS	F	11,312	$63.15	$714,353	87,937 Direct	-11.40%	Disposed	0.6% (price as of 2026-08-20)
Nov. 30, 2017	AOS	M	16,600	$23.24	$385,784	99,249 Direct	+20.08%	Acquired	173.4% (price as of 2026-08-20)
July 1, 2017	BLD	A	2,260	—	—	7,550 Direct	+42.72%	Acquired
May 1, 2017	AOS	M	20,800	$17.46	$363,168	103,449 Direct	+25.17%	Acquired	263.9% (price as of 2026-08-20)
May 1, 2017	AOS	S	20,800	$53.88	$1,120,704	82,649 Direct	-20.11%	Disposed	17.9% (price as of 2026-08-20)
May 1, 2017	AOS	M	20,800	—	—	61,015 Direct	-25.42%	Disposed	(price as of 2026-08-20)
Feb. 13, 2017	AOS	A	2,860	—	—	11,650 Direct	+32.54%	Acquired	(price as of 2026-08-20)
Feb. 13, 2017	AOS	A	11,005	—	—	81,815 Direct	+15.54%	Acquired	(price as of 2026-08-20)
Feb. 10, 2017	AOS	M	5,900	—	—	8,790 Direct	-40.16%	Disposed	(price as of 2026-08-20)
Feb. 10, 2017	AOS	F	2,149	$49.86	$107,149	82,649 Direct	-2.53%	Disposed	27.4% (price as of 2026-08-20)
Feb. 10, 2017	AOS	M	5,900	$49.86	$294,174	84,798 Direct	+7.48%	Acquired	27.4% (price as of 2026-08-20)
Dec. 6, 2016	AOS	S	10,000	$49.73	$497,300	78,898 Direct	-11.25%	Disposed	27.8% (price as of 2026-08-20)
July 11, 2016	BLD	A	2,520	—	—	5,290 Direct	+90.97%	Acquired
Feb. 12, 2016	AOS	S	1,666	$65.76	$109,556	44,449 Direct	-3.61%	Disposed	93.2% (price as of 2026-08-20)
Feb. 11, 2016	AOS	M	3,600	—	—	7,345 Direct	-32.89%	Disposed	(price as of 2026-08-20)
Feb. 11, 2016	AOS	M	3,600	$63.34	$228,024	46,115 Direct	+8.47%	Acquired	100.6% (price as of 2026-08-20)
Feb. 8, 2016	AOS	A	2,160	—	—	10,945 Direct	+24.59%	Acquired	(price as of 2026-08-20)
Feb. 8, 2016	AOS	A	8,695	—	—	35,405 Direct	+32.55%	Acquired	(price as of 2026-08-20)
Oct. 30, 2015	AOS	S	3,615	$76.63	$277,017	42,515 Direct	-7.84%	Disposed	65.8% (price as of 2026-08-20)
Oct. 30, 2015	AOS	M	3,615	—	—	26,710 Direct	-11.92%	Disposed	(price as of 2026-08-20)
Oct. 30, 2015	AOS	S	3,615	$76.49	$276,511	42,515 Direct	-7.84%	Disposed	66.1% (price as of 2026-08-20)
Oct. 30, 2015	AOS	M	3,615	$22.98	$83,073	46,130 Direct	+8.50%	Acquired	453.0% (price as of 2026-08-20)
Oct. 29, 2015	AOS	M	10,385	—	—	30,325 Direct	-25.51%	Disposed	(price as of 2026-08-20)
Oct. 29, 2015	AOS	S	10,385	$76.44	$793,829	42,515 Direct	-19.63%	Disposed	66.2% (price as of 2026-08-20)
Oct. 29, 2015	AOS	M	10,385	$22.98	$238,647	52,900 Direct	+24.43%	Acquired	453.0% (price as of 2026-08-20)
July 8, 2015	BLD	A	2,770	—	—	2,770 Direct	—	Acquired
Feb. 18, 2015	AOS	S	2,475	$62.22	$153,994	42,515 Direct	-5.50%	Disposed	104.2% (price as of 2026-08-20)
Feb. 13, 2015	AOS	M	5,000	—	—	8,785 Direct	-36.27%	Disposed	(price as of 2026-08-20)
Feb. 13, 2015	AOS	M	5,000	$62.78	$313,900	44,990 Direct	+12.50%	Acquired	102.4% (price as of 2026-08-20)
Feb. 9, 2015	AOS	A	2,235	—	—	13,785 Direct	+19.35%	Acquired	(price as of 2026-08-20)
Feb. 9, 2015	AOS	A	8,010	—	—	40,710 Direct	+24.50%	Acquired	(price as of 2026-08-20)
Dec. 4, 2014	AOS	M	13,800	—	—	32,700 Direct	-29.68%	Disposed	(price as of 2026-08-20)
Dec. 4, 2014	AOS	S	13,800	$54.71	$754,998	39,990 Direct	-25.66%	Disposed	132.3% (price as of 2026-08-20)
Dec. 4, 2014	AOS	M	13,800	$21.56	$297,528	53,790 Direct	+34.51%	Acquired	489.4% (price as of 2026-08-20)
Feb. 10, 2014	AOS	A	2,950	—	—	11,550 Direct	+34.30%	Acquired	(price as of 2026-08-20)
Feb. 10, 2014	AOS	A	8,300	—	—	46,500 Direct	+21.73%	Acquired	(price as of 2026-08-20)
Feb. 10, 2014	AOS	S	2,752	$46.67	$128,436	39,990 Direct	-6.44%	Disposed	172.3% (price as of 2026-08-20)
Feb. 7, 2014	AOS	M	5,400	—	—	8,600 Direct	-38.57%	Disposed	(price as of 2026-08-20)
Feb. 7, 2014	AOS	M	5,400	$46.34	$250,236	42,742 Direct	+14.46%	Acquired	174.2% (price as of 2026-08-20)
Oct. 23, 2013	AOS	S	15,000	$50.28	$754,200	37,342 Direct	-28.66%	Disposed	152.7% (price as of 2026-08-20)
Aug. 1, 2013	AOS	M	22,800	—	—	38,200 Direct	-37.38%	Disposed	(price as of 2026-08-20)
Aug. 1, 2013	AOS	S	22,800	$42.04	$958,512	52,342 Direct	-30.34%	Disposed	202.3% (price as of 2026-08-20)
Aug. 1, 2013	AOS	M	22,800	$13.96	$318,288	75,142 Direct	+43.56%	Acquired	810.3% (price as of 2026-08-20)
Feb. 11, 2013	AOS	A	1,800	—	—	7,000 Direct	+34.62%	Acquired	(price as of 2026-08-20)
Feb. 11, 2013	AOS	A	5,200	—	—	30,500 Direct	+20.55%	Acquired	(price as of 2026-08-20)
Feb. 8, 2013	AOS	M	4,200	—	—	5,200 Direct	-44.68%	Disposed	(price as of 2026-08-20)
Feb. 8, 2013	AOS	M	4,200	—	—	28,322 Direct	+17.41%	Acquired	(price as of 2026-08-20)
July 20, 2012	AOS	M	22,050	—	—	25,300 Direct	-46.57%	Disposed	(price as of 2026-08-20)
Feb. 11, 2012	AOS	S	2,151	$69.66	$149,839	26,171 Direct	-7.59%	Disposed	264.9% (price as of 2026-08-20)

Showing latest 100 of 186 transactions

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
Feb. 12, 2024	AOS	Restricted Stock Units	Common Stock (4,750)	—	—	4,750	Acquired
Feb. 12, 2024	AOS	Restricted Stock Units	Common Stock (4,600)	—	—	4,600	Acquired
Feb. 8, 2024	AOS	Restricted Stock Units	Common Stock (3,420)	—	—	3,420	Disposed
Nov. 13, 2023	AOS	Employee Stock Options (Right to Buy)	Common Stock (11,005)	$50.16	Feb. 13, 2027	11,005	Disposed
Feb. 13, 2023	AOS	Restricted Stock Units	Common Stock (5,215)	—	—	5,215	Acquired
Feb. 10, 2023	AOS	Restricted Stock Units	Common Stock (3,890)	—	—	3,890	Disposed
Feb. 11, 2022	AOS	Restricted Stock Units	Common Stock (3,240)	$71.72	—	3,240	Disposed
Feb. 7, 2022	AOS	Restricted Stock Units	Common Stock (2,940)	$74.26	—	2,940	Acquired
Feb. 7, 2022	AOS	Employee Stock Options (Right to Buy)	Common Stock (12,405)	$74.26	Feb. 7, 2032	12,405	Acquired
Feb. 12, 2021	AOS	Restricted Stock Units	Common Stock (2,460)	$60.65	—	2,460	Disposed
Feb. 8, 2021	AOS	Restricted Stock Units	Common Stock (3,420)	$60.82	—	3,420	Acquired
Feb. 8, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (14,840)	$60.82	Feb. 8, 2031	14,840	Acquired
Feb. 13, 2020	AOS	Restricted Stock Units	Common Stock (2,860)	$43.96	—	2,860	Disposed
Feb. 10, 2020	AOS	Restricted Stock Units	Common Stock (3,890)	$42.39	—	3,890	Acquired
Feb. 10, 2020	AOS	Employee Stock Options (Right to Buy)	Common Stock (20,250)	$42.39	Feb. 10, 2030	20,250	Acquired
Feb. 11, 2019	AOS	Employee Stock Options (Right to Buy)	Common Stock (14,780)	$49.42	Feb. 11, 2029	14,780	Acquired
Feb. 11, 2019	AOS	Restriced Stock Units	Common Stock (3,240)	$49.42	—	3,240	Acquired
Feb. 8, 2019	AOS	Restricted Stock Units	Common Stock (4,320)	$48.72	—	4,320	Disposed
Feb. 12, 2018	AOS	Employee Stock Options (Right to Buy)	Common Stock (10,215)	$61.76	Feb. 12, 2028	10,215	Acquired
Feb. 12, 2018	AOS	Restriced Stock Units	Common Stock (2,460)	$61.76	—	2,460	Acquired
Feb. 8, 2018	AOS	Restricted Stock Units	Common Stock (4,470)	$60.11	—	4,470	Disposed
Nov. 30, 2017	AOS	Employee Stock Options (Right to Buy)	Common Stock (16,600)	$23.24	Feb. 10, 2024	16,600	Disposed
May 1, 2017	AOS	Employee Stock Options (Right to Buy)	Common Stock (20,800)	$17.46	Feb. 11, 2023	20,800	Disposed
Feb. 13, 2017	AOS	Restricted Stock Units	Common Stock (2,860)	$50.16	—	2,860	Acquired
Feb. 13, 2017	AOS	Employee Stock Options (Right to Buy)	Common Stock (11,005)	$50.16	Feb. 13, 2027	11,005	Acquired
Feb. 10, 2017	AOS	Restricted Stock Units	Common Stock (5,900)	$49.86	—	5,900	Disposed
Feb. 11, 2016	AOS	Restricted Stock Units	Common Stock (3,600)	$63.34	—	3,600	Disposed
Feb. 8, 2016	AOS	Restricted Stock Units	Common Stock (2,160)	$63.34	—	2,160	Acquired
Feb. 8, 2016	AOS	Employee Stock Options (Right to Buy)	Common Stock (8,695)	$63.34	Feb. 8, 2026	8,695	Acquired
Oct. 30, 2015	AOS	Employee Stock Options (Right to Buy)	Common Stock (3,615)	$22.98	Feb. 13, 2022	3,615	Disposed
Oct. 29, 2015	AOS	Employee Stock Options (Right to Buy)	Common Stock (10,385)	$22.98	Feb. 13, 2022	10,385	Disposed
Feb. 13, 2015	AOS	Restricted Stock Units	Common Stock (5,000)	$62.78	—	5,000	Disposed
Feb. 9, 2015	AOS	Restricted Stock Units	Common Stock (2,235)	$61.53	—	2,235	Acquired
Feb. 9, 2015	AOS	Employee Stock Options (Right to Buy)	Common Stock (8,010)	$61.53	Feb. 9, 2025	8,010	Acquired
Dec. 4, 2014	AOS	Employee Stock Options (Right to Buy)	Common Stock (13,800)	$21.56	Feb. 7, 2021	13,800	Disposed
Feb. 10, 2014	AOS	Restricted Stock Units	Common Stock (2,950)	$46.47	—	2,950	Acquired
Feb. 10, 2014	AOS	Employee Stock Options (Right to Buy)	Common Stock (8,300)	$46.47	Feb. 10, 2024	8,300	Acquired
Feb. 7, 2014	AOS	Restricted Stock Units	Common Stock (5,400)	$46.34	—	5,400	Disposed
Aug. 1, 2013	AOS	Employee Stock Options (Right to Buy)	Common Stock (22,800)	$13.96	Feb. 8, 2020	22,800	Disposed
Feb. 11, 2013	AOS	Restricted Stock Units	Common Stock (1,800)	$69.84	—	1,800	Acquired
Feb. 11, 2013	AOS	Employee Stock Options (Right to Buy)	Common Stock (5,200)	$69.84	Feb. 11, 2023	5,200	Acquired
Feb. 8, 2013	AOS	Restricted Stock Units	Common Stock (4,200)	—	—	4,200	Disposed
Feb. 1, 2013	AOS	Restricted Stock Units	Common Stock (2,500)	$45.97	—	2,500	Acquired
July 20, 2012	AOS	Employee Stock Options (Right to Buy)	Common Stock (22,050)	$19.00	Feb. 9, 2019	22,050	Disposed
Feb. 13, 2012	AOS	Employee Stock Options (Right to Buy)	Common Stock (7,000)	$45.97	Feb. 13, 2022	7,000	Acquired
Feb. 9, 2012	AOS	Restricted Stock Units	Common Stock (6,300)	—	—	6,300	Disposed
Feb. 17, 2011	AOS	Employee Stock Options (Right to Buy)	Common Stock (11,250)	$23.76	Feb. 11, 2018	11,250	Disposed
Feb. 17, 2011	AOS	Employee Stock Options (Right to Buy)	Common Stock (11,700)	$25.84	Feb. 9, 2017	11,700	Disposed
Feb. 11, 2011	AOS	Restricted Stock Units	Common Stock (4,650)	—	—	4,650	Disposed
Feb. 7, 2011	AOS	Restricted Stock Units	Common Stock (2,700)	$43.12	—	2,700	Acquired
Feb. 7, 2011	AOS	Employee Stock Options (Right to Buy)	Common Stock (6,900)	$43.12	Feb. 7, 2021	6,900	Acquired
Aug. 9, 2010	AOS	Employee Stock Options (Right to Buy) [F2]	Common Stock (4,500)	$29.20	Oct. 11, 2015	4,500	Disposed
Aug. 9, 2010	AOS	Employee Stock Options (Right to Buy) [F1]	Common Stock (5,500)	$24.64	Oct. 12, 2014	5,500	Disposed
Feb. 9, 2010	AOS	Phantom Stock	Common Stock (3,200)	—	—	3,200	Disposed
Feb. 8, 2010	AOS	Restricted Stock Units	Common Stock (2,800)	$41.90	—	2,800	Acquired
Feb. 8, 2010	AOS	Employee Stock Options (Right to Buy)	Common Stock (7,600)	$41.90	Feb. 8, 2020	7,600	Acquired
Feb. 9, 2009	AOS	Restricted Stock Units	Common Stock (4,200)	$28.50	—	4,200	Acquired
Feb. 9, 2009	AOS	Employee Stock Options (Right to Buy)	Common Stock (14,700)	$28.50	Feb. 9, 2019	14,700	Acquired
Oct. 22, 2008	AOS	Phantom Stock	Common Stock (3,700)	—	—	3,700	Disposed
Feb. 11, 2008	AOS	Phantom Stock (Restricted Stock Units)	Common Stock (3,100)	$35.64	—	3,100	Acquired
Feb. 11, 2008	AOS	Employee Stock Options (Right to Buy)	Common Stock (7,500)	$35.64	Feb. 11, 2018	7,500	Acquired
Feb. 9, 2007	AOS	Phantom Stock	Common Stock (3,200)	$38.76	—	3,200	Acquired
Feb. 9, 2007	AOS	Employee Stock Options (Right to Buy)	Common Stock (7,800)	$38.76	Feb. 9, 2017	7,800	Acquired
Oct. 11, 2005	AOS	Phantom Stock	Common Stock (3,700)	$29.20	—	3,700	Acquired
Oct. 11, 2005	AOS	Employee Stock Options (Right to Buy)	Common Stock (4,500)	$29.20	Oct. 11, 2015	4,500	Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date	Ticker	Security	Shares	Ownership
Jan. 5, 2005	AOS	Common Stock	—	Direct
Jan. 5, 2005	AOS	Common Stock	—	Direct
Jan. 5, 2005	AOS	Employee Stock Options (Right to Buy) [F3]→ Common Stock (5,500)	5,500	Direct