Perkins Capital Management’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	$1.87M	Buy	171,847 +100	+0.1%	+$1.46K	1.75%	15
2025 Q4	$3.61M	Sell	171,747 -1,570	-0.9%	-$29.1K	2.87%	8
2025 Q3	$2.52M	Sell	173,317 -6,500	-4%	-$90.5K	2.22%	14
2025 Q2	$49.5K	Sell	179,817 -700	-0.4%	-$8.04K	0.05%	78
2025 Q1	$1.83M	Sell	180,517 -1,050	-0.6%	-$11.3K	1.93%	14
2024 Q4	$1.67M	Buy	181,567 +900	+0.5%	+$7.18K	1.48%	22
2024 Q3	$1M	Buy	180,667 +100	+0.1%	+$768	0.94%	35
2024 Q2	$1.89M	Sell	180,567 -3,700	-2%	-$43.1K	1.78%	15
2024 Q1	$2.54M	Sell	184,267 -600	-0.3%	-$8.9K	2.12%	11
2023 Q4	$2.79M	Buy	184,867 +12,550	+7%	+$150K	2.39%	12
2023 Q3	$2.23M	Sell	172,317 -1,800	-1%	-$28.2K	2.22%	12
2023 Q2	$3.13M	Sell	174,117 -6,650	-4%	-$104K	2.73%	6
2023 Q1	$2.82M	Sell	180,767 -1,950	-1%	-$27.6K	2.66%	9
2022 Q4	$2.26M	Sell	182,717 -1,000	-0.5%	-$10.1K	2.38%	13
2022 Q3	$1.61M	Sell	183,717 -4,783	-3%	-$37.8K	1.8%	18
2022 Q2	$1.23M	Buy	188,500 +14,000	+8%	+$129K	1.28%	28
2022 Q1	$2.01M	Buy	174,500 +7,400	+4%	+$80K	1.65%	21
2021 Q4	$1.91M	Sell	167,100 -4,500	-3%	-$53.1K	1.29%	27
2021 Q3	$2.09M	Sell	171,600 -5,150	-3%	-$71.8K	1.3%	26
2021 Q2	$2.71M	Sell	176,750 -7,000	-4%	-$108K	1.54%	22
2021 Q1	$2.9M	Hold	183,750	–	–	1.68%	17
2020 Q4	$2.67M	Sell	183,750 -2,500	-1%	-$26.4K	1.74%	13
2020 Q3	$1.24M	Buy	+186,250	New	+$1.05M	1.14%	31
2020 Q1	$644K	Buy	186,750 +100,750	+117%	+$579K	0.78%	46
2019 Q4	$610K	Hold	86,000	–	–	0.55%	60
2019 Q3	$432K	Buy	+86,000	New	+$447K	0.37%	73
2014 Q1	–	Sell	-32,096	Closed	-$774K	–	135
2013 Q4	$774K	Hold	32,096	–	–	0.52%	69
2013 Q3	$759K	Buy	32,096 +500	+2%	+$12.7K	0.55%	68
2013 Q2	$777K	Buy	+31,596	New	+$734K	0.62%	61