Parametric Portfolio Associates’s Alphatec Holdings ATEC Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2022 Q1	$147K	Sell	12,750 -5,232	-29%	-$56.6K	﹤0.01%	3500
2021 Q4	$206K	Buy	17,982 +1,403	+8%	+$16.6K	﹤0.01%	3410
2021 Q3	$202K	Buy	16,579 +2,037	+14%	+$28.4K	﹤0.01%	3436
2021 Q2	$223K	Sell	14,542 -108,158	-88%	-$1.67M	﹤0.01%	3366
2021 Q1	$1.94M	Sell	122,700 -13,579	-10%	-$214K	﹤0.01%	2795
2020 Q4	$1.98M	Buy	+136,279	New	+$1.44M	﹤0.01%	2654
2020 Q3	–	Sell	-15,265	Closed	-$72K	–	3926
2020 Q2	$72K	Buy	15,265 +4,116	+37%	+$18.2K	﹤0.01%	3829
2020 Q1	$38K	Sell	11,149 -164,168	-94%	-$944K	﹤0.01%	3860
2019 Q4	$1.24M	Buy	+175,317	New	+$1.13M	﹤0.01%	2945
2014 Q2	–	Sell	-1,097	Closed	-$20K	–	3725
2014 Q1	$20K	Buy	1,097 +50	+5%	+$1.1K	﹤0.01%	3813
2013 Q4	$25K	Buy	1,047 +117	+13%	+$2.7K	﹤0.01%	3803
2013 Q3	$22K	Sell	930 -822	-47%	-$20.8K	﹤0.01%	3805
2013 Q2	$43K	Buy	+1,752	New	+$40.7K	﹤0.01%	3669