Daniel L Kempken

Insider

First SEC filing: Feb. 22, 2023 · Latest: Feb. 22, 2023

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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.

Insider at

AOS selling Feb. 6, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 66 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

66 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 13, 2023	AOS	A	1,245	—	—	2,825 Direct	+78.80%	Acquired	(price as of 2026-08-20)
Feb. 10, 2023	AOS	F	657	$65.80	$43,231	9,087 Direct	-6.74%	Disposed	-3.4% (price as of 2026-08-20)
Feb. 10, 2023	AOS	M	1,400	—	—	1,580 Direct	-46.98%	Disposed	(price as of 2026-08-20)
Feb. 10, 2023	AOS	F	733	$65.80	$48,231	9,011 Direct	-7.52%	Disposed	-3.4% (price as of 2026-08-20)
Feb. 10, 2023	AOS	M	1,400	—	—	9,744 Direct	+16.78%	Acquired	(price as of 2026-08-20)
Feb. 6, 2023	AOS	M	2,500	$17.46	$43,650	48,810 Direct	-4.87%	Disposed	263.9% (price as of 2026-08-20)
Feb. 6, 2023	AOS	S	2,500	$68.35	$170,875	8,344 Direct	-23.05%	Disposed	-7.0% (price as of 2026-08-20)
Feb. 6, 2023	AOS	M	2,500	$17.46	$43,650	10,843 Direct	+29.97%	Acquired	263.9% (price as of 2026-08-20)
May 1, 2022	AOS	F	200	$59.34	$11,868	8,343 Direct	-2.34%	Disposed	7.1% (price as of 2026-08-20)
May 1, 2022	AOS	M	425	—	—	2,980 Direct	-12.48%	Disposed	(price as of 2026-08-20)
May 1, 2022	AOS	M	425	$59.34	$25,220	8,543 Direct	+5.24%	Acquired	7.1% (price as of 2026-08-20)
Feb. 11, 2022	AOS	M	1,165	—	—	3,405 Direct	-25.49%	Disposed	(price as of 2026-08-20)
Feb. 11, 2022	AOS	F	548	$71.72	$39,303	8,118 Direct	-6.32%	Disposed	-11.4% (price as of 2026-08-20)
Feb. 11, 2022	AOS	M	1,165	$71.72	$83,554	8,666 Direct	+15.53%	Acquired	-11.4% (price as of 2026-08-20)
Feb. 7, 2022	AOS	A	3,000	—	—	51,310 Direct	+6.21%	Acquired	(price as of 2026-08-20)
Feb. 7, 2022	AOS	A	710	—	—	4,570 Direct	+18.39%	Acquired	(price as of 2026-08-20)
Nov. 22, 2021	AOS	M	2,300	—	—	48,310 Direct	-4.54%	Disposed	(price as of 2026-08-20)
Nov. 22, 2021	AOS	S	2,300	$82.88	$190,624	7,501 Direct	-23.47%	Disposed	-23.3% (price as of 2026-08-20)
Nov. 22, 2021	AOS	M	2,300	$17.46	$40,158	9,801 Direct	+30.66%	Acquired	263.9% (price as of 2026-08-20)
March 29, 2021	AOS	M	2,000	—	—	50,610 Direct	-3.80%	Disposed	(price as of 2026-08-20)
March 29, 2021	AOS	S	2,000	$70.00	$140,000	7,501 Direct	-21.05%	Disposed	-9.2% (price as of 2026-08-20)
March 29, 2021	AOS	M	2,000	$17.46	$34,920	9,501 Direct	+26.66%	Acquired	263.9% (price as of 2026-08-20)
March 18, 2021	AOS	M	2,400	—	—	52,610 Direct	-4.36%	Disposed	(price as of 2026-08-20)
March 18, 2021	AOS	S	2,400	$67.50	$162,000	7,501 Direct	-24.24%	Disposed	-5.9% (price as of 2026-08-20)
March 18, 2021	AOS	M	2,400	$11.49	$27,576	9,901 Direct	+32.00%	Acquired	453.0% (price as of 2026-08-20)
March 10, 2021	AOS	M	2,000	—	—	55,010 Direct	-3.51%	Disposed	(price as of 2026-08-20)
March 10, 2021	AOS	S	2,000	$65.00	$130,000	7,501 Direct	-21.05%	Disposed	-2.2% (price as of 2026-08-20)
March 10, 2021	AOS	M	2,000	$11.49	$22,980	9,501 Direct	+26.66%	Acquired	453.0% (price as of 2026-08-20)
March 5, 2021	AOS	M	2,000	—	—	57,010 Direct	-3.39%	Disposed	(price as of 2026-08-20)
March 5, 2021	AOS	S	2,000	$62.50	$125,000	7,501 Direct	-21.05%	Disposed	1.7% (price as of 2026-08-20)
March 5, 2021	AOS	M	2,000	$11.93	$23,860	9,501 Direct	+26.66%	Acquired	432.6% (price as of 2026-08-20)
Feb. 12, 2021	AOS	M	930	—	—	3,860 Direct	-19.42%	Disposed	(price as of 2026-08-20)
Feb. 12, 2021	AOS	F	431	$60.65	$26,140	7,501 Direct	-5.43%	Disposed	4.8% (price as of 2026-08-20)
Feb. 12, 2021	AOS	A	930	$60.65	$56,404	7,932 Direct	+13.28%	Acquired	4.8% (price as of 2026-08-20)
Feb. 8, 2021	AOS	A	870	—	—	4,790 Direct	+22.19%	Acquired	(price as of 2026-08-20)
Feb. 8, 2021	AOS	A	3,770	—	—	59,010 Direct	+6.82%	Acquired	(price as of 2026-08-20)
Feb. 13, 2020	AOS	M	1,145	—	—	3,920 Direct	-22.61%	Disposed	(price as of 2026-08-20)
Feb. 13, 2020	AOS	F	567	$43.96	$24,925	6,999 Direct	-7.49%	Disposed	44.5% (price as of 2026-08-20)
Feb. 13, 2020	AOS	A	1,145	$43.96	$50,334	7,566 Direct	+17.83%	Acquired	44.5% (price as of 2026-08-20)
Feb. 10, 2020	AOS	A	1,400	—	—	5,065 Direct	+38.20%	Acquired	(price as of 2026-08-20)
Feb. 10, 2020	AOS	A	7,290	—	—	55,240 Direct	+15.20%	Acquired	(price as of 2026-08-20)
May 1, 2019	AOS	A	425	—	—	3,665 Direct	+13.12%	Acquired	(price as of 2026-08-20)
May 1, 2019	AOS	A	2,020	—	—	47,950 Direct	+4.40%	Acquired	(price as of 2026-08-20)
Feb. 11, 2019	AOS	A	5,310	—	—	45,930 Direct	+13.07%	Acquired	(price as of 2026-08-20)
Feb. 11, 2019	AOS	A	1,165	—	—	3,240 Direct	+56.14%	Acquired	(price as of 2026-08-20)
Feb. 11, 2019	AOS	M	1,820	—	—	2,075 Direct	-46.73%	Disposed	(price as of 2026-08-20)
Feb. 8, 2019	AOS	F	679	$48.72	$33,081	6,361 Direct	-9.64%	Disposed	30.4% (price as of 2026-08-20)
Feb. 8, 2019	AOS	A	1,820	$48.72	$88,670	7,040 Direct	+34.87%	Acquired	30.4% (price as of 2026-08-20)
Feb. 12, 2018	AOS	A	3,870	—	—	40,620 Direct	+10.53%	Acquired	(price as of 2026-08-20)
Feb. 12, 2018	AOS	A	930	—	—	3,895 Direct	+31.37%	Acquired	(price as of 2026-08-20)
Feb. 9, 2018	AOS	M	1,870	—	—	2,965 Direct	-38.68%	Disposed	(price as of 2026-08-20)
Feb. 9, 2018	AOS	F	694	$60.11	$41,716	5,196 Direct	-11.78%	Disposed	5.7% (price as of 2026-08-20)
Feb. 9, 2018	AOS	M	1,870	$60.11	$112,406	5,890 Direct	+46.52%	Acquired	5.7% (price as of 2026-08-20)
Feb. 13, 2017	AOS	A	1,145	—	—	4,835 Direct	+31.03%	Acquired	(price as of 2026-08-20)
Feb. 13, 2017	AOS	A	4,410	—	—	36,750 Direct	+13.64%	Acquired	(price as of 2026-08-20)
Feb. 10, 2017	AOS	M	1,830	—	—	3,690 Direct	-33.15%	Disposed	(price as of 2026-08-20)
Feb. 10, 2017	AOS	F	738	$49.86	$36,797	4,012 Direct	-15.54%	Disposed	27.4% (price as of 2026-08-20)
Feb. 10, 2017	AOS	M	1,830	$49.86	$91,244	4,750 Direct	+62.67%	Acquired	27.4% (price as of 2026-08-20)
Feb. 12, 2016	AOS	S	465	$65.93	$30,657	1,460 Direct	-24.16%	Disposed	92.7% (price as of 2026-08-20)
Feb. 11, 2016	AOS	M	1,200	—	—	2,760 Direct	-30.30%	Disposed	(price as of 2026-08-20)
Feb. 11, 2016	AOS	M	1,200	$63.34	$76,008	1,925 Direct	+165.52%	Acquired	100.6% (price as of 2026-08-20)
Feb. 8, 2016	AOS	A	910	—	—	3,960 Direct	+29.84%	Acquired	(price as of 2026-08-20)
Feb. 8, 2016	AOS	A	3,650	—	—	16,170 Direct	+29.15%	Acquired	(price as of 2026-08-20)
Feb. 18, 2015	AOS	S	475	$62.25	$29,569	725 Direct	-39.58%	Disposed	104.1% (price as of 2026-08-20)
Feb. 13, 2015	AOS	M	1,200	—	—	3,050 Direct	-28.24%	Disposed	(price as of 2026-08-20)
Feb. 13, 2015	AOS	M	1,200	$62.78	$75,336	1,200 Direct	—	Acquired	102.4% (price as of 2026-08-20)
Feb. 9, 2015	AOS	A	935	—	—	4,250 Direct	+28.21%	Acquired	(price as of 2026-08-20)
Feb. 9, 2015	AOS	A	3,350	—	—	12,520 Direct	+36.53%	Acquired	(price as of 2026-08-20)
Feb. 10, 2014	AOS	A	915	—	—	3,315 Direct	+38.12%	Acquired	(price as of 2026-08-20)
Feb. 10, 2014	AOS	A	2,570	—	—	9,170 Direct	+38.94%	Acquired	(price as of 2026-08-20)
Feb. 11, 2013	AOS	A	600	—	—	1,200 Direct	+100.00%	Acquired	(price as of 2026-08-20)
Feb. 11, 2013	AOS	A	1,700	—	—	3,300 Direct	+106.25%	Acquired	(price as of 2026-08-20)
Feb. 13, 2012	AOS	A	600	—	—	600 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 13, 2012	AOS	A	1,600	—	—	1,600 Direct	—	Acquired	(price as of 2026-08-20)

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. 13, 2023	AOS	Restricted Stock Units	Common Stock (1,245)	—	—	1,245	Acquired
Feb. 10, 2023	AOS	Restricted Stock Units	Common Stock (1,400)	—	—	1,400	Disposed
Feb. 6, 2023	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,500)	$17.46	Feb. 11, 2023	2,500	Disposed
May 1, 2022	AOS	Restricted Stock Units	Common Stock (425)	$59.34	—	425	Disposed
Feb. 11, 2022	AOS	Restricted Stock Units	Common Stock (1,165)	$71.72	—	1,165	Disposed
Feb. 7, 2022	AOS	Employee Stock Options (Right to Buy)	Common Stock (3,000)	$74.26	Feb. 7, 2032	3,000	Acquired
Feb. 7, 2022	AOS	Restricted Stock Units	Common Stock (710)	$74.26	—	710	Acquired
Nov. 22, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,300)	$17.46	Feb. 11, 2023	2,300	Disposed
March 29, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,000)	$17.46	Feb. 11, 2023	2,000	Disposed
March 18, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,400)	$11.49	Feb. 13, 2022	2,400	Disposed
March 10, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,000)	$11.49	Feb. 13, 2022	2,000	Disposed
March 5, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,000)	$11.49	Feb. 13, 2022	2,000	Disposed
Feb. 12, 2021	AOS	Restricted Stock Units	Common Stock (930)	$60.65	—	930	Disposed
Feb. 8, 2021	AOS	Restricted Stock Units	Common Stock (870)	$60.82	—	870	Acquired
Feb. 8, 2021	AOS	Employee Stock Options (Right to Buy)	Common Stock (3,770)	$60.82	Feb. 8, 2031	3,770	Acquired
Feb. 13, 2020	AOS	Restricted Stock Units	Common Stock (1,145)	$43.96	—	1,145	Disposed
Feb. 10, 2020	AOS	Restricted Stock Units	Common Stock (1,400)	$42.39	—	1,400	Acquired
Feb. 10, 2020	AOS	Employee Stock Options (Right to Buy)	Common Stock (7,290)	$42.39	Feb. 10, 2030	7,290	Acquired
May 1, 2019	AOS	Restricted Stock Units	Common Stock (425)	$52.68	—	425	Acquired
May 1, 2019	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,020)	$52.68	May 1, 2029	2,020	Acquired
Feb. 11, 2019	AOS	Employee Stock Options (Right to Buy)	Common Stock (5,310)	$49.42	Feb. 11, 2029	5,310	Acquired
Feb. 11, 2019	AOS	Restricted Stock Units	Common Stock (1,165)	$49.42	—	1,165	Acquired
Feb. 11, 2019	AOS	Restricted Stock Units	Common Stock (1,820)	$48.72	—	1,820	Disposed
Feb. 12, 2018	AOS	Employee Stock Options (Right to Buy)	Common Stock (3,870)	$61.76	Feb. 12, 2028	3,870	Acquired
Feb. 12, 2018	AOS	Restricted Stock Units	Common Stock (930)	$61.76	—	930	Acquired
Feb. 9, 2018	AOS	Restricted Stock Units	Common Stock (1,870)	$60.11	—	1,870	Disposed
Feb. 13, 2017	AOS	Restricted Stock Units	Common Stock (1,145)	$50.16	—	1,145	Acquired
Feb. 13, 2017	AOS	Employee Stock Options (Right to Buy)	Common Stock (4,410)	$50.16	Feb. 13, 2027	4,410	Acquired
Feb. 10, 2017	AOS	Restricted Stock Units	Common Stock (1,830)	$49.86	—	1,830	Disposed
Feb. 11, 2016	AOS	Restricted Stock Units	Common Stock (1,200)	$63.34	—	1,200	Disposed
Feb. 8, 2016	AOS	Restricted Stock Units	Common Stock (910)	$63.34	—	910	Acquired
Feb. 8, 2016	AOS	Employee Stock Options (Right to Buy)	Common Stock (3,650)	$63.34	Feb. 8, 2026	3,650	Acquired
Feb. 13, 2015	AOS	Restricted Stock Units	Common Stock (1,200)	$62.78	—	1,200	Disposed
Feb. 9, 2015	AOS	Restricted Stock Units	Common Stock (935)	$61.53	—	935	Acquired
Feb. 9, 2015	AOS	Employee Stock Options (Right to Buy)	Common Stock (3,350)	$61.53	Feb. 9, 2025	3,350	Acquired
Feb. 10, 2014	AOS	Restricted Stock Units	Common Stock (915)	$46.47	—	915	Acquired
Feb. 10, 2014	AOS	Employee Stock Options (Right to Buy)	Common Stock (2,570)	$46.47	Feb. 10, 2024	2,570	Acquired
Feb. 11, 2013	AOS	Restricted Stock Units	Common Stock (600)	$69.84	—	600	Acquired
Feb. 11, 2013	AOS	Employee Stock Options (Right to Buy)	Common Stock (1,700)	$69.84	Feb. 11, 2023	1,700	Acquired
Feb. 13, 2012	AOS	Restricted Stock Units	Common Stock (600)	$45.97	—	600	Acquired
Feb. 13, 2012	AOS	Employee Stock Options (Right to Buy)	Common Stock (1,600)	$45.97	Feb. 13, 2022	1,600	Acquired

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