Alphatec Holdings, Inc. (ATEC)
NASDAQ: ATEC · Real-Time Price · USD
13.54
+0.04 (0.30%)
At close: Feb 18, 2026, 4:00 PM EST
13.54
0.00 (0.00%)
After-hours: Feb 18, 2026, 6:16 PM EST
Alphatec Holdings Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Feb 18, 2026 | 13.77 | 13.91 | 13.51 | 13.54 | 13.54 | 0.30% | 2,913,305 |
| Feb 17, 2026 | 13.36 | 13.82 | 13.26 | 13.50 | 13.50 | 1.05% | 1,461,161 |
| Feb 13, 2026 | 13.22 | 13.56 | 13.22 | 13.36 | 13.36 | 1.98% | 1,832,660 |
| Feb 12, 2026 | 13.55 | 13.73 | 13.01 | 13.10 | 13.10 | -2.75% | 2,497,181 |
| Feb 11, 2026 | 13.80 | 14.31 | 13.28 | 13.47 | 13.47 | -3.09% | 2,229,597 |
| Feb 10, 2026 | 13.62 | 14.65 | 13.54 | 13.90 | 13.90 | 2.89% | 3,353,404 |
| Feb 9, 2026 | 13.84 | 13.84 | 13.33 | 13.51 | 13.51 | -2.24% | 2,437,030 |
| Feb 6, 2026 | 13.50 | 14.05 | 13.35 | 13.82 | 13.82 | 2.37% | 2,253,653 |
| Feb 5, 2026 | 14.06 | 14.21 | 13.43 | 13.50 | 13.50 | -3.98% | 3,270,074 |
| Feb 4, 2026 | 14.62 | 14.62 | 13.72 | 14.06 | 14.06 | -4.16% | 2,847,134 |
| Feb 3, 2026 | 14.46 | 14.91 | 14.30 | 14.67 | 14.67 | 1.24% | 3,273,503 |
| Feb 2, 2026 | 14.54 | 14.98 | 14.43 | 14.49 | 14.49 | -2.29% | 3,473,189 |
| Jan 30, 2026 | 15.00 | 15.22 | 14.54 | 14.83 | 14.83 | -0.13% | 3,354,986 |
| Jan 29, 2026 | 15.26 | 15.26 | 14.35 | 14.85 | 14.85 | -2.69% | 3,758,182 |
| Jan 28, 2026 | 15.27 | 15.55 | 14.97 | 15.26 | 15.26 | - | 2,058,174 |
| Jan 27, 2026 | 15.43 | 15.54 | 14.93 | 15.26 | 15.26 | -2.68% | 2,811,092 |
| Jan 26, 2026 | 15.58 | 16.10 | 15.58 | 15.68 | 15.68 | 0.38% | 2,319,118 |
| Jan 23, 2026 | 15.80 | 16.23 | 15.55 | 15.62 | 15.62 | -1.14% | 2,184,161 |
| Jan 22, 2026 | 16.91 | 17.12 | 15.78 | 15.80 | 15.80 | -7.22% | 4,530,541 |
| Jan 21, 2026 | 17.11 | 17.35 | 16.57 | 17.03 | 17.03 | -0.70% | 3,376,001 |
| Jan 20, 2026 | 17.25 | 17.48 | 16.85 | 17.15 | 17.15 | -3.33% | 3,329,478 |
| Jan 16, 2026 | 17.40 | 17.97 | 17.39 | 17.74 | 17.74 | 1.60% | 3,729,095 |
| Jan 15, 2026 | 16.15 | 17.50 | 16.00 | 17.46 | 17.46 | 9.47% | 7,942,897 |
| Jan 14, 2026 | 16.42 | 16.53 | 15.42 | 15.95 | 15.95 | -3.04% | 4,561,680 |
| Jan 13, 2026 | 17.60 | 17.84 | 16.15 | 16.45 | 16.45 | -6.48% | 8,671,395 |
| Jan 12, 2026 | 21.47 | 21.56 | 17.43 | 17.59 | 17.59 | -22.34% | 13,648,119 |
| Jan 9, 2026 | 22.65 | 22.89 | 21.99 | 22.65 | 22.65 | -0.13% | 2,453,590 |
| Jan 8, 2026 | 22.25 | 23.29 | 22.13 | 22.68 | 22.68 | 3.23% | 4,248,830 |
| Jan 7, 2026 | 22.02 | 22.22 | 21.73 | 21.97 | 21.97 | 0.83% | 1,415,576 |
| Jan 6, 2026 | 21.07 | 21.86 | 21.07 | 21.79 | 21.79 | 2.78% | 2,402,887 |
| Jan 5, 2026 | 20.53 | 21.37 | 20.48 | 21.20 | 21.20 | 2.12% | 1,685,391 |
| Jan 2, 2026 | 21.00 | 21.20 | 20.29 | 20.76 | 20.76 | -1.33% | 1,658,019 |
| Dec 31, 2025 | 20.92 | 21.30 | 20.89 | 21.04 | 21.04 | 0.86% | 1,498,780 |
| Dec 30, 2025 | 20.94 | 21.16 | 20.84 | 20.86 | 20.86 | -0.57% | 1,189,414 |
| Dec 29, 2025 | 21.00 | 21.20 | 20.90 | 20.98 | 20.98 | 0.07% | 1,149,103 |
| Dec 26, 2025 | 20.83 | 21.04 | 20.72 | 20.97 | 20.97 | 0.94% | 1,026,917 |
| Dec 24, 2025 | 20.93 | 20.94 | 20.55 | 20.77 | 20.77 | -1.10% | 956,347 |
| Dec 23, 2025 | 20.50 | 21.03 | 20.48 | 21.00 | 21.00 | 1.45% | 2,258,139 |
| Dec 22, 2025 | 20.00 | 20.95 | 19.69 | 20.70 | 20.70 | 3.45% | 3,791,248 |
| Dec 19, 2025 | 19.87 | 20.34 | 19.78 | 20.01 | 20.01 | 0.70% | 2,093,683 |
| Dec 18, 2025 | 19.80 | 20.21 | 19.66 | 19.87 | 19.87 | 1.53% | 1,203,109 |
| Dec 17, 2025 | 19.66 | 20.07 | 19.47 | 19.57 | 19.57 | -0.96% | 1,551,178 |
| Dec 16, 2025 | 19.89 | 19.99 | 19.33 | 19.76 | 19.76 | 0.25% | 2,529,593 |
| Dec 15, 2025 | 19.86 | 20.11 | 19.51 | 19.71 | 19.71 | -1.25% | 2,675,441 |
| Dec 12, 2025 | 19.98 | 20.44 | 19.93 | 19.96 | 19.96 | 0.25% | 1,836,465 |
| Dec 11, 2025 | 21.20 | 21.42 | 19.77 | 19.91 | 19.91 | -4.74% | 2,576,178 |
| Dec 10, 2025 | 20.72 | 21.01 | 20.54 | 20.90 | 20.90 | 1.11% | 4,026,107 |
| Dec 9, 2025 | 21.00 | 21.13 | 20.62 | 20.67 | 20.67 | -1.38% | 1,429,245 |
| Dec 8, 2025 | 21.35 | 21.42 | 20.96 | 20.96 | 20.96 | -2.28% | 2,285,844 |
| Dec 5, 2025 | 21.47 | 21.65 | 21.28 | 21.45 | 21.45 | 0.80% | 1,848,553 |