John A Walter

Insider

First SEC filing: Feb. 8, 2006 · Latest: Feb. 11, 2008

On this page

Insider at

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
July 1, 2007	GRC	J	500	$32.48	$16,240	8,733 Direct	+6.07%	Acquired	369.9% (price as of 2026-08-19)
Oct. 5, 2006	GRC	S	338	$32.68	$11,046	6,587 Direct	-4.88%	Disposed	483.8% (price as of 2026-08-19)
Oct. 5, 2006	GRC	S	2,163	$32.51	$70,319	6,925 Direct	-23.80%	Disposed	486.8% (price as of 2026-08-19)
Oct. 5, 2006	GRC	S	499	$32.50	$16,218	9,088 Direct	-5.20%	Disposed	487.0% (price as of 2026-08-19)
July 1, 2006	GRC	J	500	$26.86	$13,430	9,587 Direct	+5.50%	Acquired	610.3% (price as of 2026-08-19)
July 1, 2005	GRC	J	500	$21.26	$10,630	9,087 Direct	+5.82%	Acquired	797.3% (price as of 2026-08-19)
July 1, 2004	GRC	J	500	$26.68	$13,340	6,870 Direct	+7.85%	Acquired	793.8% (price as of 2026-08-19)

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.