Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 6 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

6 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 8, 2007 ARTNA P 228 $20.00 $4,560 273,085 Direct +0.08% Acquired 68.4% (price as of 2026-10-06)
Aug. 25, 2006 ARTNA P 228 $20.00 $4,560 272,857 Direct +0.08% Acquired 68.4% (price as of 2026-10-06)
Aug. 19, 2005 ARTNA P 429 $30.00 $12,870 181,753 Direct +0.24% Acquired 68.4% (price as of 2026-10-06)
July 14, 2005 ARTNA P 25 $30.50 $762 25,304 Direct +0.10% Acquired 65.7% (price as of 2026-10-06)
July 14, 2005 ARTNA P 1,777 $29.00 $51,533 181,324 Direct +0.99% Acquired 74.3% (price as of 2026-10-06)
Nov. 10, 2004 ARTNA P 1,658 $28.00 $46,424 179,547 Direct +0.93% Acquired 80.5% (price as of 2026-10-06)
Oct. 3, 2003 ARTNA P 1,000 $25.45 $25,450 151,434 Direct +0.66% Acquired 98.6% (price as of 2026-10-06)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
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 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 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
May 10, 2004 ARTNA Incentive Stock Option (right to buy) Class A Non-Voting Common Stock (2,250) $15.40 May 18, 2004 2,250 Disposed

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