NASDAQ:ATYR | Historical Stock Price | aTYR PHARMA 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
2015-05-07 to 2026-09-04
Data captured

Stock Price Chart

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

$0.38$1.50$5.99$23.89$95.32$380.292015-05-072026-08-27

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

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Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$0.78$0.783,675,200
2025-12-30$0.75$0.751,471,400
2025-12-29$0.75$0.752,577,200
2025-12-26$0.74$0.741,712,800
2025-12-24$0.74$0.74626,500
2025-12-23$0.72$0.722,073,600
2025-12-22$0.73$0.731,667,700
2025-12-19$0.75$0.755,868,300
2025-12-18$0.70$0.701,673,000
2025-12-17$0.71$0.711,259,700
2025-12-16$0.73$0.732,355,300
2025-12-15$0.73$0.731,730,800
2025-12-12$0.78$0.781,558,500
2025-12-11$0.77$0.771,588,300
2025-12-10$0.82$0.822,674,700
2025-12-09$0.81$0.811,081,400
2025-12-08$0.81$0.811,435,200
2025-12-05$0.82$0.821,484,100
2025-12-04$0.83$0.833,228,300
2025-12-03$0.77$0.772,324,100
2025-12-02$0.71$0.712,213,200
2025-12-01$0.74$0.742,464,300
2025-11-28$0.78$0.78977,600
2025-11-26$0.77$0.771,777,200
2025-11-25$0.77$0.772,100,900
2025-11-24$0.78$0.784,015,100
2025-11-21$0.67$0.672,839,900
2025-11-20$0.65$0.654,354,500
2025-11-19$0.68$0.684,583,900
2025-11-18$0.70$0.704,273,700
2025-11-17$0.68$0.684,286,300
2025-11-14$0.75$0.753,498,900
2025-11-13$0.71$0.715,875,900
2025-11-12$0.72$0.725,416,000
2025-11-11$0.79$0.792,799,800
2025-11-10$0.79$0.793,861,600
2025-11-07$0.82$0.824,505,200
2025-11-06$0.77$0.773,460,800
2025-11-05$0.81$0.813,688,500
2025-11-04$0.83$0.832,682,700
2025-11-03$0.88$0.883,846,100
2025-10-31$0.87$0.873,637,300
2025-10-30$0.89$0.894,298,900
2025-10-29$0.97$0.974,081,400
2025-10-28$0.96$0.963,606,300
2025-10-27$0.97$0.973,411,000
2025-10-24$0.97$0.972,788,200
2025-10-23$0.97$0.972,753,500
2025-10-22$0.97$0.977,983,500
2025-10-21$1.03$1.037,040,800
2025-10-20$1.02$1.026,405,300
2025-10-17$1.02$1.026,396,100
2025-10-16$1.00$1.009,344,300
2025-10-15$1.02$1.025,496,300
2025-10-14$1.04$1.048,286,700
2025-10-13$0.97$0.979,581,400
2025-10-10$1.06$1.0621,621,400
2025-10-09$0.95$0.9510,278,800
2025-10-08$1.00$1.0011,937,700
2025-10-07$0.84$0.845,655,900
2025-10-06$0.83$0.8310,686,900
2025-10-03$0.78$0.7810,694,100
2025-10-02$0.71$0.7110,576,500
2025-10-01$0.69$0.6913,556,800
2025-09-30$0.72$0.7223,582,100
2025-09-29$0.80$0.8013,788,700
2025-09-26$0.84$0.8416,689,700
2025-09-25$0.89$0.8914,146,300
2025-09-24$0.95$0.9512,251,500
2025-09-23$0.99$0.999,457,200
2025-09-22$1.05$1.0521,352,800
2025-09-19$0.99$0.9926,939,000
2025-09-18$1.05$1.0515,912,300
2025-09-17$1.03$1.0332,060,300
2025-09-16$1.08$1.0846,375,600
2025-09-15$1.02$1.02155,055,000
2025-09-12$6.03$6.0316,838,100
2025-09-11$5.26$5.264,768,400
2025-09-10$5.24$5.244,079,400
2025-09-09$5.31$5.314,935,900
2025-09-08$5.46$5.464,301,600
2025-09-05$5.61$5.613,973,700
2025-09-04$5.47$5.474,952,300
2025-09-03$5.71$5.714,979,100
2025-09-02$5.65$5.658,165,200
2025-08-29$5.38$5.384,681,000
2025-08-28$5.35$5.352,800,700
2025-08-27$5.17$5.172,462,100
2025-08-26$5.14$5.142,111,500
2025-08-25$5.16$5.164,090,600
2025-08-22$5.35$5.356,047,000
2025-08-21$4.95$4.952,610,700
2025-08-20$4.92$4.923,395,700
2025-08-19$4.66$4.664,744,900
2025-08-18$4.91$4.914,010,400
2025-08-15$4.90$4.904,270,700
2025-08-14$4.99$4.993,787,500
2025-08-13$5.15$5.153,267,700
2025-08-12$5.23$5.235,078,600
2025-08-11$5.61$5.614,693,300
2025-08-08$5.30$5.303,251,500
2025-08-07$5.24$5.244,011,200
2025-08-06$5.34$5.343,530,000
2025-08-05$5.22$5.223,350,700
2025-08-04$5.02$5.024,145,500
2025-08-01$4.70$4.704,265,200
2025-07-31$4.72$4.725,082,700
2025-07-30$4.94$4.946,797,600
2025-07-29$5.25$5.2512,839,900
2025-07-28$6.16$6.1612,303,000
2025-07-25$5.83$5.833,810,800
2025-07-24$5.56$5.567,674,000
2025-07-23$6.61$6.6119,355,100
2025-07-22$5.24$5.245,448,700
2025-07-21$5.71$5.714,771,000
2025-07-18$5.99$5.995,096,500
2025-07-17$5.79$5.793,553,300
2025-07-16$5.84$5.843,729,600
2025-07-15$5.63$5.633,131,100
2025-07-14$5.53$5.533,685,900
2025-07-11$5.30$5.302,470,900
2025-07-10$5.33$5.332,500,300
2025-07-09$5.53$5.534,364,600
2025-07-08$5.19$5.193,792,700
2025-07-07$5.30$5.304,479,700
2025-07-03$5.31$5.312,380,700
2025-07-02$5.28$5.284,545,900
2025-07-01$5.13$5.134,015,900
2025-06-30$5.07$5.074,107,900
2025-06-27$5.03$5.0315,793,100
2025-06-26$5.31$5.312,884,100
2025-06-25$5.11$5.112,575,800
2025-06-24$5.31$5.313,780,500
2025-06-23$4.98$4.982,949,400
2025-06-20$5.22$5.223,331,400
2025-06-18$5.17$5.171,906,500
2025-06-17$5.14$5.142,835,500
2025-06-16$5.48$5.482,039,400
2025-06-13$5.20$5.202,114,100
2025-06-12$5.43$5.431,375,700
2025-06-11$5.40$5.402,086,600
2025-06-10$5.50$5.502,732,400
2025-06-09$5.45$5.452,618,200
2025-06-06$5.38$5.382,595,400
2025-06-05$5.35$5.353,035,600
2025-06-04$5.14$5.144,689,400
2025-06-03$5.39$5.395,830,600
2025-06-02$4.75$4.752,477,900
2025-05-30$4.47$4.471,720,000
2025-05-29$4.26$4.261,721,500
2025-05-28$4.20$4.202,364,600
2025-05-27$3.87$3.872,247,300
2025-05-23$3.75$3.75991,800
2025-05-22$3.80$3.801,852,600
2025-05-21$3.75$3.752,350,200
2025-05-20$3.49$3.49867,800
2025-05-19$3.44$3.441,224,700
2025-05-16$3.27$3.271,524,000
2025-05-15$3.00$3.001,379,400
2025-05-14$3.03$3.032,019,600
2025-05-13$3.31$3.311,417,900
2025-05-12$3.24$3.241,304,300
2025-05-09$3.28$3.28927,900
2025-05-08$3.34$3.341,120,900
2025-05-07$3.16$3.161,036,700
2025-05-06$3.23$3.231,174,400
2025-05-05$3.58$3.58746,100
2025-05-02$3.60$3.601,375,100
2025-05-01$3.34$3.341,042,900
2025-04-30$3.47$3.47745,700
2025-04-29$3.38$3.381,038,100
2025-04-28$3.27$3.271,566,300
2025-04-25$3.35$3.35633,300
2025-04-24$3.45$3.45915,800
2025-04-23$3.52$3.521,394,900
2025-04-22$3.47$3.471,239,400
2025-04-21$3.28$3.281,532,600
2025-04-17$3.10$3.10801,700
2025-04-16$3.02$3.02887,000
2025-04-15$2.99$2.99819,900
2025-04-14$3.01$3.01730,200
2025-04-11$2.97$2.972,202,400
2025-04-10$2.74$2.741,279,100
2025-04-09$2.87$2.872,265,200
2025-04-08$2.72$2.721,589,500
2025-04-07$2.85$2.851,702,300
2025-04-04$2.62$2.621,875,000
2025-04-03$2.79$2.791,486,100
2025-04-02$2.96$2.961,134,800
2025-04-01$2.88$2.881,725,800
2025-03-31$3.02$3.021,837,700
2025-03-28$3.13$3.131,131,800
2025-03-27$3.26$3.261,275,900
2025-03-26$3.24$3.241,415,800
2025-03-25$3.49$3.491,259,000
2025-03-24$3.70$3.70749,400
2025-03-21$3.68$3.68819,700
2025-03-20$3.76$3.761,511,500
2025-03-19$3.84$3.841,279,500
2025-03-18$3.87$3.871,306,300
2025-03-17$4.01$4.012,060,600
2025-03-14$3.97$3.972,403,500
2025-03-13$3.99$3.991,902,500
2025-03-12$3.55$3.552,146,500
2025-03-11$3.07$3.072,308,200
2025-03-10$3.10$3.101,461,600
2025-03-07$3.40$3.402,884,000
2025-03-06$3.08$3.081,356,700
2025-03-05$3.15$3.151,832,900
2025-03-04$3.03$3.033,112,100
2025-03-03$3.30$3.301,804,300
2025-02-28$3.96$3.96954,700
2025-02-27$3.87$3.871,312,200
2025-02-26$3.87$3.871,369,900
2025-02-25$3.79$3.793,971,600
2025-02-24$3.83$3.831,922,900
2025-02-21$4.32$4.321,774,000
2025-02-20$4.43$4.432,095,300
2025-02-19$4.25$4.253,812,700
2025-02-18$3.79$3.791,307,900
2025-02-14$3.41$3.411,056,500
2025-02-13$3.59$3.59496,100
2025-02-12$3.60$3.601,327,800
2025-02-11$3.71$3.71511,400
2025-02-10$3.77$3.77638,000
2025-02-07$3.90$3.90748,400
2025-02-06$3.87$3.87586,100
2025-02-05$3.94$3.94768,700
2025-02-04$3.81$3.81878,800
2025-02-03$3.57$3.571,300,800
2025-01-31$3.86$3.86692,100
2025-01-30$3.74$3.74571,600
2025-01-29$3.63$3.63492,200
2025-01-28$3.46$3.46394,000
2025-01-27$3.46$3.46383,500
2025-01-24$3.59$3.59448,200
2025-01-23$3.56$3.56644,800
2025-01-22$3.50$3.50667,800
2025-01-21$3.63$3.63558,800
2025-01-17$3.61$3.61670,200
2025-01-16$3.75$3.751,656,500
2025-01-15$3.46$3.46901,800
2025-01-14$3.29$3.29856,200
2025-01-13$3.29$3.291,085,400
2025-01-10$3.53$3.53885,400
2025-01-08$3.74$3.74781,600
2025-01-07$3.89$3.89690,700
2025-01-06$3.97$3.971,359,700
2025-01-03$3.98$3.981,116,800
2025-01-02$3.91$3.911,397,800