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Osterweis Capital Management’s Alphatec Holdings ATEC Stock Holding History

Osterweis 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
2025
Q4 		– Sell
-334
Closed -$4.86K – 292
2025
Q3 		$4.86K Sell
334
-2,962
-90% -$41.2K ﹤0.01% 268
2025
Q2 		$36.6K Buy
+3,296
New +$37.9K ﹤0.01% 232

Other funds holding ATEC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 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
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

Osterweis Capital Management's ATEC Position: Q4 2025 in Review

Osterweis Capital Management sold out of Alphatec Holdings (ATEC) in Q4 2025, closing a stake of 334 shares — an estimated $4.86K sold.

Osterweis Capital Management first reported a position in ATEC in Q2 2025 and held it in 2 quarters. The position peaked at $36.6K in Q2 2025. 283 funds tracked by Wall St. Rank hold ATEC as of Q4 2025.

  • Osterweis Capital Management reported no remaining Alphatec Holdings position as of Q4 2025 after selling out during the quarter.
  • Osterweis Capital Management sold 334 Alphatec Holdings shares in Q4 2025, an estimated $4.86K.
  • Osterweis Capital Management first reported a position in Alphatec Holdings in Q2 2025 and held it in 2 quarters.
  • Osterweis Capital Management's Alphatec Holdings position peaked at $36.6K in Q2 2025.
  • 283 funds tracked by Wall St. Rank held Alphatec Holdings as of Q4 2025.

Based on Osterweis Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.