Great Lakes Advisors’s Alphatec Holdings ATEC Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$3.36M	Buy	309,139 +30,422	+11%	+$443K	0.03%	319
2025 Q4	$5.86M	Buy	278,717 +1,226	+0.4%	+$22.7K	0.05%	206
2025 Q3	$4.03M	Sell	277,491 -34,014	-11%	-$473K	0.03%	285
2025 Q2	$3.46M	Sell	311,505 -13,722	-4%	-$158K	0.03%	362
2025 Q1	$3.3M	Sell	325,227 -53,960	-14%	-$579K	0.03%	355
2024 Q4	$3.48M	Buy	379,187 +214,375	+130%	+$1.71M	0.03%	403
2024 Q3	$916K	Sell	164,812 -11,801	-7%	-$90.6K	0.01%	591
2024 Q2	$1.85M	Sell	176,613 -8,416	-5%	-$98K	0.02%	475
2024 Q1	$2.55M	Sell	185,029 -9,252	-5%	-$137K	0.02%	449
2023 Q4	$2.94M	Sell	194,281 -109,904	-36%	-$1.31M	0.03%	408
2023 Q3	$3.95M	Sell	304,185 -35,308	-10%	-$553K	0.04%	354
2023 Q2	$6.1M	Sell	339,493 -34,536	-9%	-$538K	0.06%	285
2023 Q1	$5.83M	Buy	+374,029	New	+$5.29M	0.05%	336