History for GCP

Year	Qtr	# Shares	Change
2018	Q2	1,775
2018	Q1	1,775	+200
2017	Q4	1,575	-397
2017	Q3	1,972	+78
2017	Q2	1,894	+165
2017	Q1	1,729	+507
2016	Q4	1,222	-176
2016	Q3	1,398	+108
2016	Q2	1,290