Millennium Management’s Alphatec Holdings ATEC Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q1
Sell
-100,000
Closed -$918K 5831
2024
Q4
$918K Buy
+100,000
New +$798K ﹤0.01% 4274
2023
Q4
Sell
-70,000
Closed -$908K 6068
2023
Q3
$908K Buy
+70,000
New +$1.1M ﹤0.01% 4250
2022
Q2
Sell
-200,000
Closed -$2.3M 6949
2022
Q1
$2.3M Buy
+200,000
New +$2.16M ﹤0.01% 3747
2021
Q4
Sell
-800,000
Closed -$9.75M 6755
2021
Q3
$9.75M Buy
+800,000
New +$11.2M 0.01% 2082

Other funds holding ATEC

Millennium Management's ATEC Position: Q2 2026 in Review

Millennium Management reduced its Alphatec Holdings (ATEC) stake by 59% in Q2 2026, selling an estimated $15.2M and leaving 1,145,837 shares worth $9.91M. The position accounts for ﹤0.01% of the portfolio, ranked #2285.

Millennium Management first reported a position in ATEC in Q2 2014 and has held it in 38 quarters since. The position peaked at $74.1M in Q3 2023. 267 funds tracked by Wall St. Rank hold ATEC as of Q2 2026.

  • Millennium Management held 1,145,837 shares of Alphatec Holdings worth $9.91M as of Q2 2026.
  • Millennium Management sold 1,663,708 Alphatec Holdings shares in Q2 2026, an estimated $15.2M.
  • Alphatec Holdings made up ﹤0.01% of Millennium Management's portfolio in Q2 2026, its #2285 holding.
  • Millennium Management first reported a position in Alphatec Holdings in Q2 2014 and has held it in 38 quarters since.
  • Millennium Management's Alphatec Holdings position peaked at $74.1M in Q3 2023.
  • 267 funds tracked by Wall St. Rank held Alphatec Holdings as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.