Tudor Investment Corp
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Tudor Investment Corp’s Alphatec Holdings ATEC Stock Holding History

Tudor Investment Corp’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
Q2 		$2.34M Buy
270,709
+4,160
+2% +$37.9K ﹤0.01% 1840
2026
Q1 		$2.9M Sell
266,549
-621,254
-70% -$9.04M 0.01% 1574
2025
Q4 		$18.7M Sell
887,803
-12,688
-1% -$235K 0.03% 445
2025
Q3 		$13.1M Buy
900,491
+773,367
+608% +$10.8M 0.02% 630
2025
Q2 		$1.41M Sell
127,124
-290,542
-70% -$3.34M ﹤0.01% 1910
2025
Q1 		$4.24M Sell
417,666
-168,199
-29% -$1.81M 0.01% 864
2024
Q4 		$5.38M Buy
585,865
+437,690
+295% +$3.49M 0.02% 648
2024
Q3 		$824K Buy
+148,175
New +$1.14M ﹤0.01% 1744
2024
Q2 		– Sell
-13,576
Closed -$187K – 2306
2024
Q1 		$187K Sell
13,576
-15,741
-54% -$233K ﹤0.01% 2049
2023
Q4 		$443K Sell
29,317
-214,872
-88% -$2.57M ﹤0.01% 1850
2023
Q3 		$3.17M Buy
244,189
+109,112
+81% +$1.71M 0.03% 707
2023
Q2 		$2.43M Buy
+135,077
New +$2.1M 0.03% 794
2023
Q1 		– Sell
-21,014
Closed -$260K – 2388
2022
Q4 		$260K Buy
+21,014
New +$212K 0.01% 1999

Other funds holding ATEC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $2.7B AUM 88.53% 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
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
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Tudor Investment Corp's ATEC Position: Q2 2026 in Review

Tudor Investment Corp increased its Alphatec Holdings (ATEC) stake by 1.6% in Q2 2026, buying an estimated $37.9K and bringing the position to 270,709 shares worth $2.34M. The position accounts for ﹤0.01% of the portfolio, ranked #1840.

Tudor Investment Corp first reported a position in ATEC in Q4 2022 and has held it in 13 quarters since. The position peaked at $18.7M in Q4 2025. 267 funds tracked by Wall St. Rank hold ATEC as of Q2 2026.

  • Tudor Investment Corp held 270,709 shares of Alphatec Holdings worth $2.34M as of Q2 2026.
  • Tudor Investment Corp bought 4,160 Alphatec Holdings shares in Q2 2026, an estimated $37.9K.
  • Alphatec Holdings made up ﹤0.01% of Tudor Investment Corp's portfolio in Q2 2026, its #1840 holding.
  • Tudor Investment Corp first reported a position in Alphatec Holdings in Q4 2022 and has held it in 13 quarters since.
  • Tudor Investment Corp's Alphatec Holdings position peaked at $18.7M in Q4 2025.
  • 267 funds tracked by Wall St. Rank held Alphatec Holdings as of Q2 2026.

Based on Tudor Investment Corp's 13F filing for Q2 2026, filed 14 Aug 2026.