Congress Asset 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
2026
Q3
$5.49M Buy
532,069
+91,431
+21% +$868K 0.04% 264
2026
Q2
$3.81M Buy
440,638
+4,923
+1% +$44.8K 0.02% 262
2026
Q1
$4.74M Buy
435,715
+62,152
+17% +$905K 0.03% 253
2025
Q4
$7.86M Sell
373,563
-10,771
-3% -$199K 0.06% 206
2025
Q3
$5.59M Sell
384,334
-3,801
-1% -$52.9K 0.04% 226
2025
Q2
$4.31M Sell
388,135
-44,777
-10% -$514K 0.03% 239
2025
Q1
$4.39M Sell
432,912
-2,054
-0.5% -$22K 0.03% 235
2024
Q4
$3.99M Buy
434,966
+305,296
+235% +$2.44M 0.03% 245
2024
Q3
$721K Sell
129,670
-1,479
-1% -$11.4K ﹤0.01% 311
2024
Q2
$1.37M Sell
131,149
-1,454
-1% -$16.9K 0.01% 289
2024
Q1
$1.83M Buy
+132,603
New +$1.97M 0.01% 279

Other funds holding ATEC

Congress Asset Management's ATEC Position: Q3 2026 in Review

Congress Asset Management increased its Alphatec Holdings (ATEC) stake by 21% in Q3 2026, buying an estimated $868K and bringing the position to 532,069 shares worth $5.49M. The position accounts for 0.04% of the portfolio, ranked #264.

Congress Asset Management first reported a position in ATEC in Q1 2024 and has held it in 11 quarters since. The position peaked at $7.86M in Q4 2025. 22 funds tracked by Wall St. Rank hold ATEC as of Q3 2026.

  • Congress Asset Management held 532,069 shares of Alphatec Holdings worth $5.49M as of Q3 2026.
  • Congress Asset Management bought 91,431 Alphatec Holdings shares in Q3 2026, an estimated $868K.
  • Alphatec Holdings made up 0.04% of Congress Asset Management's portfolio in Q3 2026, its #264 holding.
  • Congress Asset Management first reported a position in Alphatec Holdings in Q1 2024 and has held it in 11 quarters since.
  • Congress Asset Management's Alphatec Holdings position peaked at $7.86M in Q4 2025.
  • 22 funds tracked by Wall St. Rank held Alphatec Holdings as of Q3 2026.

Based on Congress Asset Management's 13F filing for Q3 2026, filed 6 Oct 2026.