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Magnetar Financial’s Alphatec Holdings ATEC Stock Holding History

Magnetar Financial’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 		$357K Buy
+32,794
New +$477K ﹤0.01% 718
2025
Q1 		– Sell
-710,576
Closed -$6.52M – 731
2024
Q4 		$6.52M Sell
710,576
-392,438
-36% -$3.13M 0.15% 106
2024
Q3 		$6.13M Buy
1,103,014
+54,503
+5% +$418K 0.13% 126
2024
Q2 		$11M Buy
+1,048,511
New +$12.2M 0.23% 88

Other funds holding ATEC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
American Century Companies
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
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return
BNP Paribas Asset Management
BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Magnetar Financial's ATEC Position: Q1 2026 in Review

Magnetar Financial opened a new position in Alphatec Holdings (ATEC) in Q1 2026: 32,794 shares worth $357K. The stake represents ﹤0.01% of the portfolio and ranks #718 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in ATEC as recently as Q4 2024.

Magnetar Financial first reported a position in ATEC in Q2 2024 and has held it in 4 quarters since. The position peaked at $11M in Q2 2024. 285 funds tracked by Wall St. Rank hold ATEC as of Q1 2026.

  • Magnetar Financial held 32,794 shares of Alphatec Holdings worth $357K as of Q1 2026.
  • Alphatec Holdings was a new Magnetar Financial position in Q1 2026.
  • Alphatec Holdings made up ﹤0.01% of Magnetar Financial's portfolio in Q1 2026, its #718 holding.
  • Magnetar Financial first reported a position in Alphatec Holdings in Q2 2024 and has held it in 4 quarters since.
  • Magnetar Financial's Alphatec Holdings position peaked at $11M in Q2 2024.
  • 285 funds tracked by Wall St. Rank held Alphatec Holdings as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.