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Oberweis Asset Management’s Alphatec Holdings ATEC Stock Holding History

Oberweis Asset 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
Q2 		– Sell
-1,908,293
Closed -$20.8M – 178
2026
Q1 		$20.8M Buy
1,908,293
+907,893
+91% +$13.2M 0.61% 51
2025
Q4 		$21M Buy
1,000,400
+539,278
+117% +$9.98M 0.77% 46
2025
Q3 		$6.7M Buy
+461,122
New +$6.42M 0.26% 133
2024
Q3 		– Sell
-1,327,360
Closed -$13.9M – 207
2024
Q2 		$13.9M Sell
1,327,360
-58,520
-4% -$681K 0.85% 36
2024
Q1 		$19.1M Sell
1,385,880
-221,940
-14% -$3.29M 1.38% 5
2023
Q4 		$24.3M Buy
1,607,820
+371,780
+30% +$4.44M 2.26% 4
2023
Q3 		$16M Buy
1,236,040
+255,570
+26% +$4M 1.7% 5
2023
Q2 		$17.6M Buy
980,470
+301,940
+44% +$4.7M 2.14% 4
2023
Q1 		$10.6M Buy
678,530
+175,240
+35% +$2.48M 1.64% 9
2022
Q4 		$6.22M Buy
503,290
+50,730
+11% +$511K 1.32% 14
2022
Q3 		$3.96M Buy
452,560
+50,400
+13% +$399K 0.93% 19
2022
Q2 		$2.63M Sell
402,160
-43,900
-10% -$405K 0.67% 26
2022
Q1 		$5.13M Sell
446,060
-228,110
-34% -$2.47M 1.03% 14
2021
Q4 		$7.71M Buy
674,170
+94,140
+16% +$1.11M 1.41% 10
2021
Q3 		$7.07M Buy
580,030
+144,500
+33% +$2.02M 1.46% 11
2021
Q2 		$6.67M Buy
435,530
+70
+0% +$1.08K 1.46% 10
2021
Q1 		$6.88M Buy
435,460
+172,060
+65% +$2.71M 1.41% 9
2020
Q4 		$3.83M Buy
263,400
+125,800
+91% +$1.33M 1.01% 13
2020
Q3 		$914K Buy
+137,600
New +$776K 0.31% 53

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

Oberweis Asset Management's ATEC Position: Q2 2026 in Review

Oberweis Asset Management sold out of Alphatec Holdings (ATEC) in Q2 2026, closing a stake of 1,908,293 shares — an estimated $20.8M sold.

Oberweis Asset Management first reported a position in ATEC in Q3 2020 and held it in 19 quarters. The position peaked at $24.3M in Q4 2023. 268 funds tracked by Wall St. Rank hold ATEC as of Q2 2026.

  • Oberweis Asset Management reported no remaining Alphatec Holdings position as of Q2 2026 after selling out during the quarter.
  • Oberweis Asset Management sold 1,908,293 Alphatec Holdings shares in Q2 2026, an estimated $20.8M.
  • Oberweis Asset Management first reported a position in Alphatec Holdings in Q3 2020 and held it in 19 quarters.
  • Oberweis Asset Management's Alphatec Holdings position peaked at $24.3M in Q4 2023.
  • 268 funds tracked by Wall St. Rank held Alphatec Holdings as of Q2 2026.

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