William R Power

Insider

First SEC filing: June 18, 2010 · Latest: Feb. 14, 2011

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 4 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

4 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 18, 2010	CBOE	J	160,000	—	—	160,000 Direct	—	Acquired	(price as of 2026-08-25)
June 18, 2010	CBOE	J	160,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-25)
June 18, 2010	CBOE	J	80,000	—	—	80,000 Direct	—	Acquired	(price as of 2026-08-25)
June 18, 2010	CBOE	J	80,000	—	—	80,000 Direct	—	Acquired	(price as of 2026-08-25)
June 18, 2010	CBOE	P	300	$29.00	$8,700	7,847 Direct	+3.98%	Acquired	956.4% (price as of 2026-08-25)

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.