NASDAQ:ATRA | Stock Price History | Atara Biotherapeutics, 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
2014-10-16 to 2026-09-04
Data captured

Stock Price Chart

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

$4.10$13.63$45.25$150.25$498.91$1,656.642014-10-162026-08-27

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

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$9.56132
2026-09-03$9.08605
2026-09-02$9.51457
2026-09-01$8.80454
2026-08-31$8.97567
2026-08-28$9.13502
2026-08-27$9.25$9.2526,900$9.60603
2026-08-26$9.38$9.3863,700$9.64580
2026-08-25$9.84$9.8448,500$9.76457
2026-08-24$9.46$9.4624,000$9.48498
2026-08-21$9.70$9.7027,100$9.57744
2026-08-20$9.38$9.3828,000$9.34333
2026-08-19$9.60$9.6079,100$8.911,200
2026-08-18$8.72$8.7229,500$8.47337
2026-08-17$8.36$8.3666,000$7.961,973
2026-08-14$8.09$8.0966,200$8.23625
2026-08-13$8.51$8.51126,500$8.723,262
2026-08-12$9.23$9.2390,000$8.901,104
2026-08-11$8.94$8.9429,200$8.52557
2026-08-10$8.61$8.6145,300$8.491,107
2026-08-07$8.45$8.4523,200$8.29933
2026-08-06$8.25$8.2522,900$8.57525
2026-08-05$8.54$8.5432,500$8.602,304
2026-08-04$8.77$8.7742,300$8.76619
2026-08-03$8.55$8.5553,200$8.42441
2026-07-31$8.38$8.3834,500$8.23767
2026-07-30$8.17$8.1796,000$8.10962
2026-07-29$8.06$8.0639,800$7.69374
2026-07-28$7.81$7.8185,400$7.391,520
2026-07-27$7.71$7.7162,700$8.20400
2026-07-24$7.90$7.9075,200$8.382,128
2026-07-23$8.17$8.1746,500$8.04536
2026-07-22$8.13$8.1328,900$8.37309
2026-07-21$8.63$8.6348,400$8.37885
2026-07-20$8.29$8.2959,200$8.571,340
2026-07-17$8.39$8.3981,300
2026-07-16$8.72$8.7240,100
2026-07-15$8.55$8.5573,400
2026-07-14$8.04$8.04202,800
2026-07-13$8.67$8.67136,300
2026-07-10$9.76$9.7666,900
2026-07-09$9.95$9.9549,400
2026-07-08$9.65$9.65206,800
2026-07-07$10.26$10.2649,300
2026-07-06$10.88$10.8880,400
2026-07-02$11.65$11.6531,700
2026-07-01$11.37$11.3735,500
2026-06-30$11.48$11.48106,700
2026-06-29$11.17$11.1759,800
2026-06-26$10.51$10.5145,300
2026-06-25$10.22$10.2267,600
2026-06-24$10.55$10.5549,600
2026-06-23$11.16$11.16105,100
2026-06-22$10.61$10.6195,200
2026-06-18$10.07$10.07144,900
2026-06-17$9.67$9.67122,200
2026-06-16$9.62$9.62126,100
2026-06-15$9.96$9.9680,700
2026-06-12$10.41$10.4195,600
2026-06-11$10.46$10.4642,800
2026-06-10$9.86$9.8656,400
2026-06-09$9.77$9.7765,900
2026-06-08$9.58$9.58113,200
2026-06-05$9.92$9.9269,000
2026-06-04$10.27$10.2794,400
2026-06-03$9.63$9.63104,200
2026-06-02$9.90$9.9062,700
2026-06-01$10.28$10.2890,100
2026-05-29$10.51$10.5196,400
2026-05-28$11.26$11.26146,700
2026-05-27$10.54$10.54168,900
2026-05-26$9.61$9.61182,300
2026-05-22$9.80$9.80122,600
2026-05-21$9.34$9.3452,600
2026-05-20$9.45$9.4580,400
2026-05-19$9.41$9.41286,600
2026-05-18$9.15$9.15382,600
2026-05-15$9.58$9.58226,200
2026-05-14$9.59$9.59302,500
2026-05-13$10.48$10.48746,700
2026-05-12$9.81$9.811,084,500
2026-05-11$8.78$8.78942,900
2026-05-08$8.34$8.343,003,000
2026-05-07$9.93$9.9376,987,200
2026-05-06$5.15$5.15185,100
2026-05-05$4.76$4.7646,700
2026-05-04$4.88$4.88136,900
2026-05-01$4.90$4.9037,000
2026-04-30$4.77$4.7762,900
2026-04-29$4.60$4.6060,900
2026-04-28$4.73$4.7333,000
2026-04-27$4.99$4.9952,300
2026-04-24$5.01$5.0126,600
2026-04-23$4.90$4.9034,600
2026-04-22$5.18$5.1861,400
2026-04-21$4.99$4.9934,300
2026-04-20$4.99$4.9982,200
2026-04-17$5.27$5.2776,200
2026-04-16$5.24$5.2434,800
2026-04-15$5.24$5.2453,500