Kenneth R Biederman

CIK 1208423 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 28, 2011 · Latest: Jan. 28, 2011

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.

Insider at

ARTNA selling Nov. 17, 2022

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 74 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

74 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 6, 2025	ARTNA	J	1,000	$37.07	$37,070	0 Direct	-100.00%	Disposed	-5.0% (price as of 2026-08-20)
May 6, 2025	ARTNA	J	1,000	$37.07	$37,070	25,875 Direct	+4.02%	Acquired	-5.0% (price as of 2026-08-20)
May 9, 2024	ARTNA	J	1,000	$54.88	$54,880	0 Direct	-100.00%	Disposed	-35.9% (price as of 2026-08-20)
May 9, 2024	ARTNA	J	1,000	$54.88	$54,880	24,875 Direct	+4.19%	Acquired	-35.9% (price as of 2026-08-20)
May 6, 2024	ARTNA	A	1,000	$37.07	$37,070	1,000 Direct	—	Acquired	-5.0% (price as of 2026-08-20)
May 9, 2023	ARTNA	A	1,000	$54.88	$54,880	1,000 Direct	—	Acquired	-35.9% (price as of 2026-08-20)
May 9, 2023	ARTNA	A	1,000	$54.88	$54,880	1,000 Direct	—	Acquired	-35.9% (price as of 2026-08-20)
May 3, 2023	ARTNA	J	1,000	$45.58	$45,580	0 Direct	-100.00%	Disposed	-22.8% (price as of 2026-08-20)
May 3, 2023	ARTNA	J	1,000	$45.58	$45,580	23,875 Direct	+4.37%	Acquired	-22.8% (price as of 2026-08-20)
Nov. 17, 2022	ARTNA	X	3,396	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 17, 2022	ARTNA	S	3,396	$53.08	$180,260	22,875 Direct	-12.93%	Disposed	-33.7% (price as of 2026-08-20)
Nov. 17, 2022	ARTNA	X	3,396	$21.86	$74,237	26,271 Direct	+14.85%	Acquired	61.0% (price as of 2026-08-20)
Sept. 16, 2022	ARTNA	X	3,354	—	—	3,396 Direct	-49.69%	Disposed	(price as of 2026-08-20)
Sept. 16, 2022	ARTNA	S	3,354	$57.67	$193,425	22,875 Direct	-12.79%	Disposed	-39.0% (price as of 2026-08-20)
Sept. 16, 2022	ARTNA	X	3,354	$21.86	$73,318	26,229 Direct	+14.66%	Acquired	61.0% (price as of 2026-08-20)
May 4, 2022	ARTNA	J	1,000	$40.11	$40,110	0 Direct	-100.00%	Disposed	-12.2% (price as of 2026-08-20)
May 4, 2022	ARTNA	J	1,000	$40.11	$40,110	22,875 Direct	+4.57%	Acquired	-12.2% (price as of 2026-08-20)
May 3, 2022	ARTNA	A	1,000	$45.58	$45,580	1,000 Direct	—	Acquired	-22.8% (price as of 2026-08-20)
March 14, 2022	ARTNA	X	6,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 14, 2022	ARTNA	S	6,750	$47.80	$322,650	21,875 Direct	-23.58%	Disposed	-26.4% (price as of 2026-08-20)
March 14, 2022	ARTNA	X	6,750	$22.66	$152,955	28,625 Direct	+30.86%	Acquired	55.3% (price as of 2026-08-20)
May 6, 2021	ARTNA	J	1,000	$35.01	$35,010	0 Direct	-100.00%	Disposed	0.5% (price as of 2026-08-20)
May 6, 2021	ARTNA	J	1,000	$35.01	$35,010	21,875 Direct	+4.79%	Acquired	0.5% (price as of 2026-08-20)
May 4, 2021	ARTNA	A	1,000	$40.11	$40,110	1,000 Direct	—	Acquired	-12.2% (price as of 2026-08-20)
Dec. 17, 2020	ARTNA	X	2,391	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 17, 2020	ARTNA	S	2,391	$38.70	$92,532	20,875 Direct	-10.28%	Disposed	-9.0% (price as of 2026-08-20)
Dec. 17, 2020	ARTNA	X	2,391	$19.01	$45,453	23,266 Direct	+11.45%	Acquired	85.2% (price as of 2026-08-20)
Dec. 11, 2020	ARTNA	X	984	—	—	2,391 Direct	-29.16%	Disposed	(price as of 2026-08-20)
Dec. 11, 2020	ARTNA	S	984	$39.56	$38,927	20,875 Direct	-4.50%	Disposed	-11.0% (price as of 2026-08-20)
Dec. 11, 2020	ARTNA	X	984	$19.01	$18,706	21,859 Direct	+4.71%	Acquired	85.2% (price as of 2026-08-20)
Dec. 9, 2020	ARTNA	X	3,375	—	—	3,375 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Dec. 9, 2020	ARTNA	S	3,375	$38.78	$130,882	20,875 Direct	-13.92%	Disposed	-9.2% (price as of 2026-08-20)
Dec. 9, 2020	ARTNA	X	3,375	$19.01	$64,159	24,250 Direct	+16.17%	Acquired	85.2% (price as of 2026-08-20)
May 28, 2020	ARTNA	X	3,375	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 28, 2020	ARTNA	S	3,375	$35.14	$118,598	20,875 Direct	-13.92%	Disposed	0.2% (price as of 2026-08-20)
May 28, 2020	ARTNA	X	3,375	$19.06	$64,328	24,250 Direct	+16.17%	Acquired	84.7% (price as of 2026-08-20)
May 11, 2020	ARTNA	X	3,375	—	—	3,375 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 11, 2020	ARTNA	S	3,375	$35.55	$119,981	20,875 Direct	-13.92%	Disposed	-1.0% (price as of 2026-08-20)
May 11, 2020	ARTNA	X	3,375	$19.06	$64,328	24,250 Direct	+16.17%	Acquired	84.7% (price as of 2026-08-20)
May 8, 2020	ARTNA	J	1,000	$36.11	$36,110	0 Direct	-100.00%	Disposed	-2.5% (price as of 2026-08-20)
May 8, 2020	ARTNA	J	1,000	$36.11	$36,110	20,875 Direct	+5.03%	Acquired	-2.5% (price as of 2026-08-20)
May 6, 2020	ARTNA	A	1,000	$35.01	$35,010	1,000 Direct	—	Acquired	0.5% (price as of 2026-08-20)
May 17, 2019	ARTNA	S	1,000	$35.99	$35,990	19,875 Direct	-4.79%	Disposed	-2.2% (price as of 2026-08-20)
May 8, 2019	ARTNA	A	1,000	$36.11	$36,110	1,000 Direct	—	Acquired	-2.5% (price as of 2026-08-20)
May 2, 2019	ARTNA	J	1,000	$38.51	$38,510	0 Direct	-100.00%	Disposed	-8.6% (price as of 2026-08-20)
May 2, 2019	ARTNA	J	1,000	$38.51	$38,510	20,875 Direct	+5.03%	Acquired	-8.6% (price as of 2026-08-20)
March 20, 2019	ARTNA	X	2,073	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 20, 2019	ARTNA	S	2,073	$38.45	$79,707	19,875 Direct	-9.45%	Disposed	-8.5% (price as of 2026-08-20)
March 20, 2019	ARTNA	X	2,073	$18.61	$38,579	21,948 Direct	+10.43%	Acquired	89.1% (price as of 2026-08-20)
March 18, 2019	ARTNA	X	4,677	—	—	2,073 Direct	-69.29%	Disposed	(price as of 2026-08-20)
March 18, 2019	ARTNA	S	4,677	$39.37	$184,133	19,875 Direct	-19.05%	Disposed	-10.6% (price as of 2026-08-20)
March 18, 2019	ARTNA	X	4,677	$18.61	$87,039	24,552 Direct	+23.53%	Acquired	89.1% (price as of 2026-08-20)
Aug. 14, 2018	ARTNA	S	1,000	$37.00	$37,000	19,875 Direct	-4.79%	Disposed	-4.9% (price as of 2026-08-20)
May 3, 2018	ARTNA	J	1,000	$38.10	$38,100	0 Direct	-100.00%	Disposed	-7.6% (price as of 2026-08-20)
May 3, 2018	ARTNA	J	1,000	$38.10	$38,100	20,875 Direct	+5.03%	Acquired	-7.6% (price as of 2026-08-20)
May 2, 2018	ARTNA	A	1,000	$38.51	$38,510	1,000 Direct	—	Acquired	-8.6% (price as of 2026-08-20)
March 19, 2018	ARTNA	X	6,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 19, 2018	ARTNA	S	6,750	$36.78	$248,265	19,875 Direct	-25.35%	Disposed	-4.3% (price as of 2026-08-20)
March 19, 2018	ARTNA	X	6,750	$15.26	$103,005	26,625 Direct	+33.96%	Acquired	130.7% (price as of 2026-08-20)
Nov. 15, 2017	ARTNA	X	2,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 15, 2017	ARTNA	S	2,000	$39.05	$78,100	19,875 Direct	-9.14%	Disposed	-9.9% (price as of 2026-08-20)
Nov. 15, 2017	ARTNA	X	2,000	$18.43	$36,860	21,875 Direct	+10.06%	Acquired	91.0% (price as of 2026-08-20)
May 10, 2017	ARTNA	S	1,000	$36.00	$36,000	19,875 Direct	-4.79%	Disposed	-2.2% (price as of 2026-08-20)
May 4, 2017	ARTNA	J	1,000	$38.30	$38,300	0 Direct	-100.00%	Disposed	-8.1% (price as of 2026-08-20)
May 4, 2017	ARTNA	J	1,000	$38.30	$38,300	20,875 Direct	+5.03%	Acquired	-8.1% (price as of 2026-08-20)
May 3, 2017	ARTNA	A	1,000	$38.10	$38,100	1,000 Direct	—	Acquired	-7.6% (price as of 2026-08-20)
March 15, 2017	ARTNA	X	1,750	—	—	2,000 Direct	-46.67%	Disposed	(price as of 2026-08-20)
March 15, 2017	ARTNA	S	1,750	$33.48	$58,590	19,875 Direct	-8.09%	Disposed	5.1% (price as of 2026-08-20)
March 15, 2017	ARTNA	X	1,750	$18.43	$32,252	21,625 Direct	+8.81%	Acquired	91.0% (price as of 2026-08-20)
March 13, 2017	ARTNA	X	3,000	—	—	3,750 Direct	-44.44%	Disposed	(price as of 2026-08-20)
March 13, 2017	ARTNA	S	3,000	$31.61	$94,830	19,875 Direct	-13.11%	Disposed	11.4% (price as of 2026-08-20)
March 13, 2017	ARTNA	X	3,000	$18.43	$55,290	22,875 Direct	+15.09%	Acquired	91.0% (price as of 2026-08-20)
Dec. 19, 2016	ARTNA	S	1,000	$32.03	$32,030	19,875 Direct	-4.79%	Disposed	9.9% (price as of 2026-08-20)
May 9, 2016	ARTNA	X	6,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 9, 2016	ARTNA	S	6,750	$27.94	$188,595	20,875 Direct	-24.43%	Disposed	26.0% (price as of 2026-08-20)
May 9, 2016	ARTNA	X	6,750	$19.56	$132,030	27,625 Direct	+32.34%	Acquired	80.0% (price as of 2026-08-20)
May 4, 2016	ARTNA	A	1,000	$27.70	$27,700	1,000 Direct	—	Acquired	27.1% (price as of 2026-08-20)
Dec. 18, 2015	ARTNA	A	1,000	$27.38	$27,380	20,875 Direct	+5.03%	Acquired	28.6% (price as of 2026-08-20)
Nov. 20, 2015	ARTNA	X	3,375	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 20, 2015	ARTNA	S	3,375	$25.25	$85,219	19,875 Direct	-14.52%	Disposed	39.4% (price as of 2026-08-20)
Nov. 20, 2015	ARTNA	X	3,375	$21.11	$71,246	23,250 Direct	+16.98%	Acquired	66.7% (price as of 2026-08-20)
Nov. 11, 2015	ARTNA	X	3,375	—	—	3,375 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Nov. 11, 2015	ARTNA	S	3,375	$25.00	$84,375	19,875 Direct	-14.52%	Disposed	40.8% (price as of 2026-08-20)
Nov. 11, 2015	ARTNA	X	3,375	$21.11	$71,246	23,250 Direct	+16.98%	Acquired	66.7% (price as of 2026-08-20)
Sept. 17, 2015	ARTNA	X	5,625	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 17, 2015	ARTNA	S	5,625	$22.20	$124,875	19,875 Direct	-22.06%	Disposed	58.6% (price as of 2026-08-20)
Sept. 17, 2015	ARTNA	X	5,625	$19.70	$110,812	25,500 Direct	+28.30%	Acquired	78.7% (price as of 2026-08-20)
Aug. 27, 2015	ARTNA	X	5,625	—	—	5,625 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Aug. 27, 2015	ARTNA	S	5,625	$22.04	$123,975	19,875 Direct	-22.06%	Disposed	59.7% (price as of 2026-08-20)
Aug. 27, 2015	ARTNA	X	5,625	$19.70	$110,812	25,500 Direct	+28.30%	Acquired	78.7% (price as of 2026-08-20)
May 7, 2014	ARTNA	A	6,750	—	—	6,750 Direct	—	Acquired	(price as of 2026-08-20)
March 18, 2014	ARTNA	X	6,248	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 18, 2014	ARTNA	S	6,248	$22.10	$138,081	19,875 Direct	-23.92%	Disposed	59.3% (price as of 2026-08-20)
March 18, 2014	ARTNA	X	6,248	$16.13	$100,780	26,123 Direct	+31.44%	Acquired	118.2% (price as of 2026-08-20)
March 17, 2014	ARTNA	X	502	—	—	6,248 Direct	-7.44%	Disposed	(price as of 2026-08-20)
March 17, 2014	ARTNA	S	502	$22.35	$11,220	19,875 Direct	-2.46%	Disposed	57.5% (price as of 2026-08-20)
March 17, 2014	ARTNA	X	502	$16.13	$8,097	20,377 Direct	+2.53%	Acquired	118.2% (price as of 2026-08-20)
May 8, 2013	ARTNA	A	6,750	$22.66	$152,955	6,750 Direct	—	Acquired	55.3% (price as of 2026-08-20)
March 18, 2013	ARTNA	X	6,750	$13.30	$89,775	26,625 Direct	+33.96%	Acquired	164.7% (price as of 2026-08-20)
March 18, 2013	ARTNA	S	6,429	$22.00	$141,438	20,196 Direct	-24.15%	Disposed	60.0% (price as of 2026-08-20)

Showing latest 100 of 176 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
May 6, 2025	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 7, 2025	1,000	Disposed
May 9, 2024	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 10, 2024	1,000	Disposed
May 6, 2024	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 7, 2025	1,000	Acquired
May 9, 2023	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 4, 2024	1,000	Acquired
May 9, 2023	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 10, 2024	1,000	Acquired
May 3, 2023	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 4, 2023	1,000	Disposed
Nov. 17, 2022	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,396)	$21.86	May 7, 2024	3,396	Disposed
Sept. 16, 2022	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,354)	$21.86	May 7, 2024	3,354	Disposed
May 4, 2022	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 5, 2022	1,000	Disposed
May 3, 2022	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 4, 2023	1,000	Acquired
March 14, 2022	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$22.66	May 8, 2023	6,750	Disposed
May 6, 2021	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 7, 2021	1,000	Disposed
May 4, 2021	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 5, 2022	1,000	Acquired
Dec. 17, 2020	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (2,391)	$19.01	May 9, 2022	2,391	Disposed
Dec. 11, 2020	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (984)	$19.01	May 9, 2022	984	Disposed
Dec. 9, 2020	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,375)	$19.01	May 9, 2022	3,375	Disposed
May 28, 2020	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,375)	$19.06	May 17, 2021	3,375	Disposed
May 11, 2020	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,375)	$19.06	May 17, 2021	3,375	Disposed
May 8, 2020	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 8, 2020	1,000	Disposed
May 6, 2020	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 7, 2021	1,000	Acquired
May 8, 2019	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 8, 2020	1,000	Acquired
May 2, 2019	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 3, 2019	1,000	Disposed
March 20, 2019	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (2,073)	$18.61	May 18, 2020	2,073	Disposed
March 18, 2019	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (4,677)	$18.61	May 18, 2020	4,677	Disposed
May 3, 2018	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 4, 2018	1,000	Disposed
May 2, 2018	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 3, 2019	1,000	Acquired
March 19, 2018	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$15.26	May 19, 2019	6,750	Disposed
Nov. 15, 2017	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (2,000)	$18.43	May 14, 2018	2,000	Disposed
May 4, 2017	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 5, 2017	1,000	Disposed
May 3, 2017	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 4, 2018	1,000	Acquired
March 15, 2017	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (1,750)	$18.43	May 14, 2018	1,750	Disposed
March 13, 2017	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,000)	$18.43	May 14, 2018	3,000	Disposed
May 9, 2016	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$19.56	May 16, 2017	6,750	Disposed
May 4, 2016	ARTNA	Restricted Stock Grant	Class A Non-voting Common Stock (1,000)	$0.00	May 5, 2017	1,000	Acquired
Nov. 20, 2015	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,375)	$21.11	May 12, 2016	3,375	Disposed
Nov. 11, 2015	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,375)	$21.11	May 12, 2016	3,375	Disposed
Sept. 17, 2015	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (5,625)	$19.70	Dec. 20, 2015	5,625	Disposed
Aug. 27, 2015	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (5,625)	$19.70	Dec. 20, 2015	5,625	Disposed
May 7, 2014	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$21.86	May 7, 2024	6,750	Acquired
March 18, 2014	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,248)	$16.13	May 26, 2014	6,248	Disposed
March 17, 2014	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (502)	$16.13	May 26, 2014	502	Disposed
May 8, 2013	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$22.66	May 8, 2023	6,750	Acquired
March 18, 2013	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$13.30	May 21, 2013	6,750	Disposed
May 9, 2012	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$19.01	May 9, 2022	6,750	Acquired
March 28, 2012	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (5,000)	$12.40	June 5, 2012	5,000	Disposed
March 16, 2012	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (1,750)	$12.40	June 5, 2012	1,750	Disposed
May 17, 2011	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (6,750)	$19.06	May 17, 2021	6,750	Acquired
Nov. 15, 2010	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (3,750)	$9.76	May 30, 2011	3,750	Disposed
Sept. 20, 2010	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (2,800)	$9.76	May 30, 2011	2,800	Disposed
Sept. 17, 2010	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (50)	$9.76	May 30, 2011	50	Disposed
Sept. 16, 2010	ARTNA	Non-qualified Stock Option (Right to Buy)	Class A Non-voting Common Stock (150)	$9.76	May 30, 2011	150	Disposed
May 18, 2010	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (6,750)	$18.61	May 18, 2020	6,750	Acquired
Nov. 11, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (3,375)	$9.28	May 31, 2010	3,375	Disposed
Aug. 28, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (3,375)	$9.28	May 31, 2010	3,375	Disposed
May 19, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (6,750)	$15.26	May 19, 2019	6,750	Acquired
March 23, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (2,342)	$8.50	May 18, 2009	2,342	Disposed
March 20, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (908)	$8.50	May 18, 2009	908	Disposed
March 19, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (1,500)	$8.50	May 18, 2009	1,500	Disposed
March 19, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (500)	$8.50	May 18, 2009	500	Disposed
March 16, 2009	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (1,500)	$8.50	May 18, 2009	1,500	Disposed
May 14, 2008	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (6,750)	$18.43	May 14, 2018	6,750	Acquired
March 19, 2008	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (3,750)	$7.61	May 27, 2008	3,750	Disposed
July 11, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (3,000)	$7.61	May 27, 2008	3,000	Disposed
May 16, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (6,750)	$19.56	May 16, 2017	6,750	Acquired
May 2, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (750)	$6.90	May 28, 2007	750	Disposed
April 3, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (1,500)	$6.90	May 28, 2007	1,500	Disposed
March 6, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (1,500)	$6.90	May 28, 2007	1,500	Disposed
Feb. 6, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (1,500)	$6.90	May 28, 2007	1,500	Disposed
Jan. 4, 2007	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (1,500)	$6.90	May 28, 2007	1,500	Disposed
May 12, 2006	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (4,500)	$31.67	May 12, 2016	4,500	Acquired
Dec. 20, 2005	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (7,500)	$29.55	Dec. 20, 2015	7,500	Acquired
May 19, 2005	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (4,500)	$8.47	May 7, 2006	4,500	Disposed
May 26, 2004	ARTNA	Non-Qualified Stock Option (right to buy)	Class A Non-Voting Common Stock (4,500)	$24.20	May 26, 2014	4,500	Acquired

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