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Dark Forest Capital Management’s Alphatec Holdings ATEC Stock Holding History

Dark Forest Capital Management’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 		– Sell
-22,240
Closed -$468K – 800
2025
Q4 		$468K Sell
22,240
-98,472
-82% -$1.82M 0.02% 827
2025
Q3 		$1.76M Buy
120,712
+46,167
+62% +$643K 0.07% 513
2025
Q2 		$827K Sell
74,545
-16,476
-18% -$189K 0.03% 800
2025
Q1 		$923K Buy
+91,021
New +$977K 0.04% 727
2024
Q4 		– Sell
-10,570
Closed -$58.8K – 930
2024
Q3 		$58.8K Buy
+10,570
New +$81.1K 0.01% 932
2024
Q2 		– Sell
-17,923
Closed -$247K – 656
2024
Q1 		$247K Buy
+17,923
New +$266K 0.04% 535
2023
Q4 		– Sell
-46,737
Closed -$606K – 500
2023
Q3 		$606K Buy
+46,737
New +$732K 0.05% 625

Other funds holding ATEC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
BNP Paribas Asset Management
BNP Paribas Asset Management Paris, France $99.8B AUM 45.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Dark Forest Capital Management's ATEC Position: Q1 2026 in Review

Dark Forest Capital Management sold out of Alphatec Holdings (ATEC) in Q1 2026, closing a stake of 22,240 shares — an estimated $468K sold.

Dark Forest Capital Management first reported a position in ATEC in Q3 2023 and held it in 7 quarters. The position peaked at $1.76M in Q3 2025. 285 funds tracked by Wall St. Rank hold ATEC as of Q1 2026.

  • Dark Forest Capital Management reported no remaining Alphatec Holdings position as of Q1 2026 after selling out during the quarter.
  • Dark Forest Capital Management sold 22,240 Alphatec Holdings shares in Q1 2026, an estimated $468K.
  • Dark Forest Capital Management first reported a position in Alphatec Holdings in Q3 2023 and held it in 7 quarters.
  • Dark Forest Capital Management's Alphatec Holdings position peaked at $1.76M in Q3 2025.
  • 285 funds tracked by Wall St. Rank held Alphatec Holdings as of Q1 2026.

Based on Dark Forest Capital Management's 13F filing for Q1 2026, filed 15 May 2026.