NASDAQ:ATEC | Historical Stock Price | Alphatec Holdings, Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2006-06-12 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.13$2.81$6.98$17.35$43.10$107.102006-06-122026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$3.60$3.6010,750
2015-12-30$3.60$3.6027,358
2015-12-29$3.72$3.7220,425
2015-12-28$3.84$3.8449,883
2015-12-24$3.96$3.9669,333
2015-12-23$2.52$2.5247,325
2015-12-22$2.40$2.4030,183
2015-12-21$2.40$2.4036,150
2015-12-18$2.64$2.6458,900
2015-12-17$2.52$2.5238,400
2015-12-16$2.40$2.4031,025
2015-12-15$2.40$2.4039,467
2015-12-14$2.28$2.28133,175
2015-12-11$2.76$2.7633,942
2015-12-10$2.88$2.8864,933
2015-12-09$2.88$2.8819,950
2015-12-08$3.00$3.0019,950
2015-12-07$2.76$2.7626,058
2015-12-04$2.76$2.7611,025
2015-12-03$2.88$2.8822,800
2015-12-02$2.88$2.8831,908
2015-12-01$2.88$2.8831,933
2015-11-30$2.76$2.7622,542
2015-11-27$2.88$2.8818,775
2015-11-25$2.64$2.6416,267
2015-11-24$2.76$2.7665,275
2015-11-23$2.76$2.7619,217
2015-11-20$2.76$2.7616,917
2015-11-19$2.76$2.7624,142
2015-11-18$2.64$2.6427,533
2015-11-17$2.52$2.5243,292
2015-11-16$2.64$2.6439,267
2015-11-13$2.76$2.7632,092
2015-11-12$3.36$3.3610,858
2015-11-11$3.24$3.2418,667
2015-11-10$3.84$3.8439,950
2015-11-09$4.08$4.0813,500
2015-11-06$3.84$3.8433,867
2015-11-05$3.96$3.9615,983
2015-11-04$4.20$4.2032,000
2015-11-03$4.08$4.0823,650
2015-11-02$3.96$3.9620,942
2015-10-30$4.20$4.2021,642
2015-10-29$4.08$4.0825,992
2015-10-28$3.72$3.7222,617
2015-10-27$3.72$3.7221,700
2015-10-26$3.84$3.8427,350
2015-10-23$3.84$3.8438,900
2015-10-22$3.96$3.9627,300
2015-10-21$3.84$3.8446,800
2015-10-20$3.96$3.9636,108
2015-10-19$4.32$4.3258,267
2015-10-16$4.44$4.4433,850
2015-10-15$4.20$4.2034,767
2015-10-14$4.44$4.44129,258
2015-10-13$3.96$3.9611,692
2015-10-12$3.72$3.7215,758
2015-10-09$4.08$4.0811,475
2015-10-08$4.32$4.3225,658
2015-10-07$4.08$4.0810,000
2015-10-06$4.08$4.0812,133
2015-10-05$3.84$3.8411,558
2015-10-02$3.72$3.7212,300
2015-10-01$3.84$3.849,367
2015-09-30$3.96$3.9620,283
2015-09-29$3.84$3.8421,942
2015-09-28$4.08$4.0826,425
2015-09-25$4.20$4.2010,117
2015-09-24$4.20$4.2032,567
2015-09-23$4.44$4.4413,667
2015-09-22$4.92$4.9224,675
2015-09-21$5.04$5.0412,167
2015-09-18$6.00$6.0017,142
2015-09-17$5.88$5.8827,442
2015-09-16$5.88$5.8835,117
2015-09-15$5.16$5.167,000
2015-09-14$5.16$5.1637,925
2015-09-11$4.80$4.8019,725
2015-09-10$5.52$5.5233,325
2015-09-09$6.24$6.2411,208
2015-09-08$6.24$6.2425,758
2015-09-04$6.96$6.9614,400
2015-09-03$7.08$7.086,475
2015-09-02$6.84$6.842,325
2015-09-01$6.96$6.966,308
2015-08-31$6.84$6.847,342
2015-08-28$6.48$6.488,725
2015-08-27$6.84$6.844,842
2015-08-26$6.96$6.9612,392
2015-08-25$6.60$6.6011,425
2015-08-24$6.84$6.8414,717
2015-08-21$6.96$6.964,817
2015-08-20$6.84$6.846,567
2015-08-19$7.32$7.322,000
2015-08-18$7.20$7.2018,567
2015-08-17$7.92$7.927,683
2015-08-14$8.28$8.2826,608
2015-08-13$8.28$8.2811,908
2015-08-12$8.16$8.169,833
2015-08-11$8.16$8.1614,300
2015-08-10$8.40$8.4029,817
2015-08-07$7.92$7.9296,908
2015-08-06$6.24$6.24178,600
2015-08-05$9.36$9.36134,250
2015-08-04$16.32$16.322,158
2015-08-03$16.32$16.324,042
2015-07-31$16.32$16.32283
2015-07-30$16.32$16.32575
2015-07-29$16.32$16.321,675
2015-07-28$16.32$16.321,808
2015-07-27$16.44$16.442,858
2015-07-24$16.32$16.3216,300
2015-07-23$16.32$16.322,692
2015-07-22$16.32$16.323,117
2015-07-21$16.44$16.441,825
2015-07-20$16.32$16.324,375
2015-07-17$16.92$16.924,392
2015-07-16$16.32$16.321,875
2015-07-15$16.68$16.685,192
2015-07-14$16.68$16.682,258
2015-07-13$16.44$16.4410,092
2015-07-10$16.80$16.803,025
2015-07-09$16.44$16.441,233
2015-07-08$16.20$16.208,158
2015-07-07$16.44$16.443,758
2015-07-06$16.32$16.323,492
2015-07-02$16.68$16.682,650
2015-07-01$16.56$16.564,375
2015-06-30$16.56$16.563,408
2015-06-29$16.56$16.566,550
2015-06-26$16.44$16.446,825
2015-06-25$16.20$16.202,950
2015-06-24$16.56$16.564,692
2015-06-23$16.56$16.561,217
2015-06-22$16.92$16.927,750
2015-06-19$15.72$15.7246,533
2015-06-18$17.04$17.042,392
2015-06-17$17.04$17.0423,042
2015-06-16$17.40$17.4012,700
2015-06-15$17.40$17.407,267
2015-06-12$17.40$17.402,983
2015-06-11$17.40$17.4011,183
2015-06-10$17.52$17.5213,167
2015-06-09$17.40$17.405,575
2015-06-08$16.92$16.927,458
2015-06-05$16.80$16.803,725
2015-06-04$16.56$16.563,292
2015-06-03$16.44$16.441,325
2015-06-02$16.44$16.443,767
2015-06-01$16.32$16.323,042
2015-05-29$16.20$16.202,267
2015-05-28$16.32$16.321,875
2015-05-27$16.32$16.3214,683
2015-05-26$16.20$16.201,983
2015-05-22$16.32$16.325,167
2015-05-21$16.20$16.207,342
2015-05-20$17.28$17.282,358
2015-05-19$16.44$16.444,783
2015-05-18$16.20$16.204,225
2015-05-15$16.44$16.444,458
2015-05-14$15.72$15.721,583
2015-05-13$15.72$15.727,683
2015-05-12$15.96$15.9623,400
2015-05-11$16.20$16.208,467
2015-05-08$16.20$16.203,883
2015-05-07$15.72$15.723,642
2015-05-06$15.72$15.724,475
2015-05-05$15.72$15.728,650
2015-05-04$16.08$16.0831,400
2015-05-01$17.04$17.0422,833
2015-04-30$17.04$17.046,950
2015-04-29$16.80$16.803,558
2015-04-28$16.80$16.804,250
2015-04-27$16.92$16.9215,342
2015-04-24$16.92$16.921,458
2015-04-23$16.80$16.80992
2015-04-22$16.92$16.921,092
2015-04-21$16.80$16.802,383
2015-04-20$17.04$17.043,158
2015-04-17$17.16$17.166,658
2015-04-16$16.92$16.929,275
2015-04-15$16.80$16.8011,575
2015-04-14$16.68$16.681,433
2015-04-13$17.16$17.164,850
2015-04-10$17.16$17.16417
2015-04-09$17.04$17.043,392
2015-04-08$16.80$16.804,100
2015-04-07$17.16$17.1610,775
2015-04-06$16.80$16.8011,625
2015-04-02$16.92$16.929,317
2015-04-01$17.04$17.045,183
2015-03-31$17.40$17.405,300
2015-03-30$16.92$16.921,600
2015-03-27$16.80$16.801,567
2015-03-26$16.80$16.8017,392
2015-03-25$17.28$17.289,492
2015-03-24$16.92$16.922,692
2015-03-23$16.32$16.3210,808
2015-03-20$16.20$16.209,525
2015-03-19$17.04$17.041,675
2015-03-18$16.68$16.681,392
2015-03-17$17.28$17.283,558
2015-03-16$17.52$17.5210,683
2015-03-13$17.64$17.647,783
2015-03-12$17.64$17.6440,433
2015-03-11$18.00$18.006,700
2015-03-10$18.00$18.006,267
2015-03-09$18.00$18.006,583
2015-03-06$18.36$18.364,517
2015-03-05$18.00$18.004,583
2015-03-04$18.00$18.007,958
2015-03-03$18.24$18.2415,242
2015-03-02$18.00$18.0027,383
2015-02-27$17.40$17.4023,108
2015-02-26$16.20$16.2020,158
2015-02-25$16.20$16.208,533
2015-02-24$16.20$16.202,967
2015-02-23$16.20$16.204,475
2015-02-20$16.20$16.2013,125
2015-02-19$16.20$16.201,925
2015-02-18$16.20$16.202,342
2015-02-17$16.20$16.2017,617
2015-02-13$16.08$16.085,417
2015-02-12$16.08$16.083,283
2015-02-11$15.84$15.841,442
2015-02-10$16.08$16.083,183
2015-02-09$15.84$15.842,125
2015-02-06$16.08$16.084,550
2015-02-05$16.20$16.206,900
2015-02-04$16.20$16.205,575
2015-02-03$15.96$15.964,117
2015-02-02$15.72$15.728,000
2015-01-30$15.36$15.363,375
2015-01-29$15.72$15.723,250
2015-01-28$15.60$15.606,358
2015-01-27$15.84$15.844,358
2015-01-26$16.20$16.206,283
2015-01-23$16.44$16.443,467
2015-01-22$16.20$16.203,367
2015-01-21$16.08$16.081,200
2015-01-20$16.08$16.084,767
2015-01-16$16.80$16.803,483
2015-01-15$16.56$16.564,850
2015-01-14$16.80$16.804,967
2015-01-13$16.80$16.804,683
2015-01-12$16.44$16.444,183
2015-01-09$16.80$16.801,992
2015-01-08$16.80$16.807,475
2015-01-07$16.44$16.449,442
2015-01-06$16.80$16.8011,250
2015-01-05$16.80$16.8013,308
2015-01-02$16.80$16.806,867