Port Capital’s Alphatec Holdings ATEC Stock Holding History

Port Capital’s Portfolio ATEC Stock Details ATEC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	–	Sell	-13,000	Closed	-$132K	–	86
2025 Q1	$132K	Hold	13,000	–	–	0.01%	86
2024 Q4	$119K	Hold	13,000	–	–	0.01%	87
2024 Q3	$72K	Hold	13,000	–	–	﹤0.01%	86
2024 Q2	$136K	Hold	13,000	–	–	0.01%	84
2024 Q1	$179K	Hold	13,000	–	–	0.01%	86
2023 Q4	$196K	Hold	13,000	–	–	0.01%	88
2023 Q3	$169K	Hold	13,000	–	–	0.01%	79
2023 Q2	$234K	Hold	13,000	–	–	0.01%	77
2023 Q1	$203K	Hold	13,000	–	–	0.01%	70
2022 Q4	$161K	Hold	13,000	–	–	0.01%	68
2022 Q3	$114K	Hold	13,000	–	–	0.01%	69
2022 Q2	$85K	Hold	13,000	–	–	0.01%	71
2022 Q1	$149K	Hold	13,000	–	–	0.01%	71
2021 Q4	$149K	Hold	13,000	–	–	0.01%	80
2021 Q3	$158K	Hold	13,000	–	–	0.01%	80
2021 Q2	$199K	Buy	13,000 +1,000	+8%	+$15.4K	0.01%	82
2021 Q1	$189K	Hold	12,000	–	–	0.01%	82
2020 Q4	$174K	Buy	+12,000	New	+$127K	0.01%	80

Other funds holding ATEC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return

Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Port Capital's ATEC Position: Q2 2025 in Review

Port Capital sold out of Alphatec Holdings (ATEC) in Q2 2025, closing a stake of 13,000 shares — an estimated $132K sold.

Port Capital first reported a position in ATEC in Q4 2020 and held it in 18 quarters. The position peaked at $234K in Q2 2023. 238 funds tracked by Wall St. Rank hold ATEC as of Q2 2025.

Port Capital reported no remaining Alphatec Holdings position as of Q2 2025 after selling out during the quarter.
Port Capital sold 13,000 Alphatec Holdings shares in Q2 2025, an estimated $132K.
Port Capital first reported a position in Alphatec Holdings in Q4 2020 and held it in 18 quarters.
Port Capital's Alphatec Holdings position peaked at $234K in Q2 2023.
238 funds tracked by Wall St. Rank held Alphatec Holdings as of Q2 2025.

Based on Port Capital's 13F filing for Q2 2025, filed 14 Aug 2025.