Jane Street’s Alphatec Holdings ATEC Stock Holding History

Jane Street’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	$638K	Buy	58,600 +39,900	+213%	+$581K	﹤0.01%	7478
2025 Q4	$393K	Sell	18,700 -26,700	-59%	-$494K	﹤0.01%	8227
2025 Q3	$660K	Buy	45,400 +3,400	+8%	+$47.3K	﹤0.01%	7248
2025 Q2	$466K	Sell	42,000 -800	-2%	-$9.19K	﹤0.01%	7055
2025 Q1	$434K	Sell	42,800 -91,000	-68%	-$977K	﹤0.01%	7135
2024 Q4	$1.23M	Sell	133,800 -64,100	-32%	-$512K	﹤0.01%	4993
2024 Q3	$1.1M	Buy	+197,900	New	+$1.52M	﹤0.01%	5687
2024 Q2	–	Sell	-17,400	Closed	-$240K	–	9318
2024 Q1	$240K	Buy	17,400 +6,900	+66%	+$102K	﹤0.01%	7909
2023 Q4	$159K	Buy	+10,500	New	+$126K	﹤0.01%	8368
2023 Q3	–	Sell	-12,000	Closed	-$216K	–	8595
2023 Q2	$216K	Buy	+12,000	New	+$187K	﹤0.01%	7596
2022 Q1	–	Sell	-14,700	Closed	-$168K	–	10242
2021 Q4	$168K	Sell	14,700 -2,300	-14%	-$27.2K	﹤0.01%	8937
2021 Q3	$207K	Buy	+17,000	New	+$237K	﹤0.01%	8783

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

Jane Street's ATEC Position: Q1 2026 in Review

Jane Street increased its Alphatec Holdings (ATEC) stake by 52% in Q1 2026, buying an estimated $4.39M and bringing the position to 878,549 shares worth $9.56M. The position accounts for ﹤0.01% of the portfolio, ranked #2595.

Jane Street first reported a position in ATEC in Q2 2019 and has held it in 19 quarters since. The position peaked at $12.1M in Q4 2025. 285 funds tracked by Wall St. Rank hold ATEC as of Q1 2026.

Jane Street held 878,549 shares of Alphatec Holdings worth $9.56M as of Q1 2026.
Jane Street bought 301,339 Alphatec Holdings shares in Q1 2026, an estimated $4.39M.
Alphatec Holdings made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2595 holding.
Jane Street first reported a position in Alphatec Holdings in Q2 2019 and has held it in 19 quarters since.
Jane Street's Alphatec Holdings position peaked at $12.1M in Q4 2025.
285 funds tracked by Wall St. Rank held Alphatec Holdings as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.