State of Wisconsin Investment Board’s Alphatec Holdings ATEC Stock Holding History

State of Wisconsin Investment Board’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
2026 Q1	$1.83M	Sell	167,874 -10,047	-6%	-$146K	﹤0.01%	1435
2025 Q4	$3.74M	Buy	177,921 +143,025	+410%	+$2.65M	0.01%	1127
2025 Q3	$507K	Sell	34,896 -13,417	-28%	-$187K	﹤0.01%	1887
2025 Q2	$536K	Buy	48,313 +37,698	+355%	+$433K	﹤0.01%	1822
2025 Q1	$108K	Buy	+10,615	New	+$114K	﹤0.01%	2170
2022 Q4	–	Sell	-13,277	Closed	-$116K	–	2507
2022 Q3	$116K	Sell	13,277 -3,489	-21%	-$27.6K	﹤0.01%	2504
2022 Q2	$110K	Buy	+16,766	New	+$154K	﹤0.01%	2612
2022 Q1	–	Sell	-29,600	Closed	-$338K	–	2288
2021 Q4	$338K	Buy	29,600 +6,400	+28%	+$75.6K	﹤0.01%	1858
2021 Q3	$283K	Hold	23,200	–	–	﹤0.01%	1978
2021 Q2	$355K	Buy	+23,200	New	+$358K	﹤0.01%	1824

Other funds holding ATEC

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

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

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

State of Wisconsin Investment Board's ATEC Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its Alphatec Holdings (ATEC) stake by 5.6% in Q1 2026, selling an estimated $146K and leaving 167,874 shares worth $1.83M. The position accounts for ﹤0.01% of the portfolio, ranked #1435.

State of Wisconsin Investment Board first reported a position in ATEC in Q2 2021 and has held it in 10 quarters since. The position peaked at $3.74M in Q4 2025. 285 funds tracked by Wall St. Rank hold ATEC as of Q1 2026.

State of Wisconsin Investment Board held 167,874 shares of Alphatec Holdings worth $1.83M as of Q1 2026.
State of Wisconsin Investment Board sold 10,047 Alphatec Holdings shares in Q1 2026, an estimated $146K.
Alphatec Holdings made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #1435 holding.
State of Wisconsin Investment Board first reported a position in Alphatec Holdings in Q2 2021 and has held it in 10 quarters since.
State of Wisconsin Investment Board's Alphatec Holdings position peaked at $3.74M in Q4 2025.
285 funds tracked by Wall St. Rank held Alphatec Holdings as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.