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Alphatec Holdings, Inc. (ATEC)
NASDAQ: ATEC · Real-Time Price · USD
9.35
-1.01 (-9.75%)
At close: Apr 28, 2026, 4:00 PM EDT
9.35
0.00 (0.00%)
After-hours: Apr 28, 2026, 4:28 PM EDT

Alphatec Holdings Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 202610.3810.569.479.29--10.33%2,531,480
Apr 27, 202610.7410.9310.2310.3610.36-4.95%2,216,842
Apr 24, 202610.2110.9610.1510.9010.906.76%4,321,286
Apr 23, 202610.6010.7210.0510.2110.21-3.86%1,987,650
Apr 22, 202610.5310.8310.5110.6210.621.34%2,111,764
Apr 21, 202611.5511.6010.3810.4810.48-9.26%2,986,639
Apr 20, 202611.0411.5710.9411.5511.554.05%2,447,455
Apr 17, 202611.1711.4310.9811.1011.102.59%2,558,263
Apr 16, 202611.4411.6010.8110.8210.82-5.25%1,923,551
Apr 15, 202611.6111.7811.3111.4211.42-0.87%1,726,737
Apr 14, 202611.3511.7211.3511.5211.522.40%2,038,741
Apr 13, 202610.7911.3010.7911.2511.253.21%2,614,430
Apr 10, 202611.0611.2210.8810.9010.90-1.54%1,626,730
Apr 9, 202611.4811.7711.0111.0711.07-5.06%2,304,406
Apr 8, 202611.6811.7811.4211.6611.665.71%2,355,835
Apr 7, 202610.9111.3010.8011.0311.030.55%1,705,447
Apr 6, 202610.7911.2610.6610.9710.971.29%1,282,703
Apr 2, 202610.9711.3710.6110.8310.83-3.82%2,105,696
Apr 1, 202611.0311.5110.7411.2611.263.49%4,070,013
Mar 31, 202611.1611.2210.7810.8810.88-1.09%2,912,297
Mar 30, 202610.9311.3510.8011.0011.000.64%2,100,022
Mar 27, 202611.4611.5210.8710.9310.93-5.12%1,942,254
Mar 26, 202611.5611.8411.4611.5211.520.26%2,173,879
Mar 25, 202611.8012.0011.4511.4911.49-2.21%1,593,774
Mar 24, 202612.1112.2111.6411.7511.75-3.29%2,038,740
Mar 23, 202612.7312.7712.1312.1512.15-1.78%1,908,974
Mar 20, 202612.8412.8412.2812.3712.37-2.75%2,376,564
Mar 19, 202612.3512.7812.3512.7212.721.27%1,838,250
Mar 18, 202613.0013.0812.5112.5612.56-3.75%2,617,316
Mar 17, 202612.6313.0712.6313.0513.053.57%2,390,255
Mar 16, 202612.3412.6312.1912.6012.602.61%1,664,591
Mar 13, 202612.5612.7112.2012.2812.28-1.76%3,172,134
Mar 12, 202612.4112.5812.2512.5012.50-1.26%2,228,277
Mar 11, 202612.5012.9312.1212.6612.661.20%3,504,821
Mar 10, 202612.8712.8712.3012.5112.51-2.80%2,228,465
Mar 9, 202611.9912.8911.9212.8712.875.23%4,573,227
Mar 6, 202612.2612.3912.0412.2312.23-2.70%1,851,331
Mar 5, 202612.8612.8912.2412.5712.57-3.31%2,731,017
Mar 4, 202612.8413.2112.7413.0013.00-0.15%1,985,838
Mar 3, 202613.2513.2712.7013.0213.02-3.34%1,607,746
Mar 2, 202613.3013.6713.1413.4713.47-1.10%1,974,791
Feb 27, 202613.8013.9013.5013.6213.62-2.78%2,121,660
Feb 26, 202614.2114.4513.5714.0114.01-0.21%1,988,665
Feb 25, 202613.2614.2313.1314.0414.040.79%6,024,908
Feb 24, 202613.1813.9813.0013.9313.935.85%6,119,952
Feb 23, 202612.9113.3612.7713.1613.161.15%2,478,469
Feb 20, 202613.6313.6312.8013.0113.01-3.49%2,575,078
Feb 19, 202613.5313.7313.2413.4813.48-0.44%1,454,563
Feb 18, 202613.7713.9113.5113.5413.540.30%2,982,214
Feb 17, 202613.3613.8213.2613.5013.501.05%1,464,852
Feb 13, 202613.2213.5613.2213.3613.361.98%1,832,669
Feb 12, 202613.5513.7313.0113.1013.10-2.75%2,497,181
Feb 11, 202613.8014.3113.2813.4713.47-3.09%2,673,736
Feb 10, 202613.6214.6513.5413.9013.902.89%3,353,459
Feb 9, 202613.8413.8413.3313.5113.51-2.24%2,437,276
Feb 6, 202613.5014.0513.3513.8213.822.37%2,253,803
Feb 5, 202614.0614.2113.4313.5013.50-3.98%3,270,708
Feb 4, 202614.6214.6213.7214.0614.06-4.16%2,847,235
Feb 3, 202614.4614.9114.3014.6714.671.24%3,273,735
Feb 2, 202614.5414.9814.4314.4914.49-2.29%3,492,126
Jan 30, 202615.0015.2214.5414.8314.83-0.13%3,355,872
Jan 29, 202615.2615.2614.3514.8514.85-2.69%4,159,660
Jan 28, 202615.2715.5514.9715.2615.26-2,073,493
Jan 27, 202615.4315.5414.9315.2615.26-2.68%2,811,995
Jan 26, 202615.5816.1015.5815.6815.680.38%2,319,118
Jan 23, 202615.8016.2315.5515.6215.62-1.14%2,184,161
Jan 22, 202616.9117.1215.7815.8015.80-7.22%4,530,541
Jan 21, 202617.1117.3516.5717.0317.03-0.70%3,376,001
Jan 20, 202617.2517.4816.8517.1517.15-3.33%3,329,478
Jan 16, 202617.4017.9717.3917.7417.741.60%3,729,095
Jan 15, 202616.1517.5016.0017.4617.469.47%7,942,897
Jan 14, 202616.4216.5315.4215.9515.95-3.04%4,561,680
Jan 13, 202617.6017.8416.1516.4516.45-6.48%8,671,395
Jan 12, 202621.4721.5617.4317.5917.59-22.34%13,648,119
Jan 9, 202622.6522.8921.9922.6522.65-0.13%2,453,590
Jan 8, 202622.2523.2922.1322.6822.683.23%4,248,830
Jan 7, 202622.0222.2221.7321.9721.970.83%1,415,576
Jan 6, 202621.0721.8621.0721.7921.792.78%2,402,887
Jan 5, 202620.5321.3720.4821.2021.202.12%1,685,391
Jan 2, 202621.0021.2020.2920.7620.76-1.33%1,658,019
Dec 31, 202520.9221.3020.8921.0421.040.86%1,498,780
Dec 30, 202520.9421.1620.8420.8620.86-0.57%1,189,414
Dec 29, 202521.0021.2020.9020.9820.980.07%1,149,103
Dec 26, 202520.8321.0420.7220.9720.970.94%1,026,917
Dec 24, 202520.9320.9420.5520.7720.77-1.10%956,347
Dec 23, 202520.5021.0320.4821.0021.001.45%2,258,139
Dec 22, 202520.0020.9519.6920.7020.703.45%3,791,248
Dec 19, 202519.8720.3419.7820.0120.010.70%2,093,683
Dec 18, 202519.8020.2119.6619.8719.871.53%1,203,109
Dec 17, 202519.6620.0719.4719.5719.57-0.96%1,551,178
Dec 16, 202519.8919.9919.3319.7619.760.25%2,529,593
Dec 15, 202519.8620.1119.5119.7119.71-1.25%2,675,441
Dec 12, 202519.9820.4419.9319.9619.960.25%1,836,465
Dec 11, 202521.2021.4219.7719.9119.91-4.74%2,576,178
Dec 10, 202520.7221.0120.5420.9020.901.11%4,026,107
Dec 9, 202521.0021.1320.6220.6720.67-1.38%1,429,245
Dec 8, 202521.3521.4220.9620.9620.96-2.28%2,285,844
Dec 5, 202521.4721.6521.2821.4521.450.80%1,848,553
Dec 4, 202521.2921.5721.1421.2821.280.24%1,282,338
Dec 3, 202521.1121.4620.8721.2321.230.28%2,097,824