NASDAQ:ALT | Historical Stock Price | Altimmune, 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
2017-05-26 to 2026-09-04
Data captured

Stock Price Chart

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

$1.48$3.68$9.14$22.69$56.33$139.862017-05-262026-08-27

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

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Historical Stock Price — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$1.89$1.89338,600——
2019-12-30$1.80$1.80159,800——
2019-12-27$1.80$1.80263,300——
2019-12-26$1.79$1.7966,800——
2019-12-24$1.77$1.7770,300——
2019-12-23$1.77$1.77129,900——
2019-12-20$1.76$1.76101,500——
2019-12-19$1.78$1.78118,700——
2019-12-18$1.71$1.7140,400——
2019-12-17$1.74$1.7480,700——
2019-12-16$1.74$1.7475,600——
2019-12-13$1.72$1.72141,000——
2019-12-12$1.79$1.79112,800——
2019-12-11$1.85$1.85109,200——
2019-12-10$1.83$1.8364,100——
2019-12-09$1.84$1.84138,700——
2019-12-06$1.88$1.88115,100——
2019-12-05$1.83$1.83745,800——
2019-12-04$2.14$2.14171,400——
2019-12-03$2.15$2.15295,600——
2019-12-02$1.94$1.94189,300——
2019-11-29$1.82$1.8295,200——
2019-11-27$1.66$1.6680,800——
2019-11-26$1.65$1.65111,000——
2019-11-25$1.65$1.6597,900——
2019-11-22$1.62$1.6283,300——
2019-11-21$1.67$1.67300,900——
2019-11-20$1.55$1.55148,600——
2019-11-19$1.53$1.53168,000——
2019-11-18$1.56$1.56191,100——
2019-11-15$1.61$1.61181,200——
2019-11-14$1.61$1.61573,800——
2019-11-13$1.76$1.76127,300——
2019-11-12$1.75$1.7577,200——
2019-11-11$1.78$1.78121,100——
2019-11-08$1.84$1.8473,800——
2019-11-07$1.86$1.8665,200——
2019-11-06$1.87$1.8791,000——
2019-11-05$1.92$1.9257,000——
2019-11-04$1.93$1.9346,000——
2019-11-01$1.95$1.9549,700——
2019-10-31$1.91$1.9188,800——
2019-10-30$1.95$1.9547,700——
2019-10-29$1.98$1.9824,200——
2019-10-28$2.02$2.0224,700——
2019-10-25$1.98$1.9853,000——
2019-10-24$2.00$2.0020,700——
2019-10-23$2.02$2.0249,900——
2019-10-22$2.01$2.0148,500——
2019-10-21$1.98$1.9846,100——
2019-10-18$2.02$2.0235,800——
2019-10-17$1.99$1.9954,000——
2019-10-16$2.03$2.03123,700——
2019-10-15$2.05$2.0593,100——
2019-10-14$1.97$1.9727,300——
2019-10-11$1.96$1.9646,000——
2019-10-10$1.90$1.9053,800——
2019-10-09$1.92$1.9240,500——
2019-10-08$1.93$1.93232,200——
2019-10-07$1.90$1.9052,100——
2019-10-04$1.90$1.90132,500——
2019-10-03$1.88$1.8867,100——
2019-10-02$1.89$1.8960,900——
2019-10-01$1.90$1.90166,900——
2019-09-30$1.95$1.95119,400——
2019-09-27$1.95$1.95165,500——
2019-09-26$2.00$2.00238,100——
2019-09-25$2.01$2.0187,700——
2019-09-24$2.03$2.03113,300——
2019-09-23$2.09$2.0973,000——
2019-09-20$2.11$2.11120,400——
2019-09-19$2.04$2.04106,200——
2019-09-18$2.10$2.1097,900——
2019-09-17$2.17$2.17106,300——
2019-09-16$2.22$2.22234,100——
2019-09-13$2.25$2.2577,800——
2019-09-12$2.15$2.1568,000——
2019-09-11$2.20$2.20198,400——
2019-09-10$2.20$2.20218,300——
2019-09-09$2.13$2.13149,700——
2019-09-06$2.02$2.02152,800——
2019-09-05$2.06$2.06161,500——
2019-09-04$2.10$2.1065,600——
2019-09-03$2.10$2.1074,500——
2019-08-30$2.11$2.1183,900——
2019-08-29$2.06$2.0672,700——
2019-08-28$1.98$1.9871,400——
2019-08-27$1.96$1.96201,600——
2019-08-26$2.02$2.0256,000——
2019-08-23$2.08$2.0872,600——
2019-08-22$2.13$2.1347,400——
2019-08-21$2.12$2.12250,700——
2019-08-20$2.13$2.1362,300——
2019-08-19$2.19$2.19235,000——
2019-08-16$2.03$2.03136,600——
2019-08-15$2.06$2.06151,300——
2019-08-14$2.03$2.03152,200——
2019-08-13$2.12$2.12158,200——
2019-08-12$2.17$2.17129,100——
2019-08-09$2.21$2.21153,500——
2019-08-08$2.26$2.2667,300——
2019-08-07$2.26$2.26173,400——
2019-08-06$2.22$2.22115,900——
2019-08-05$2.23$2.23182,000——
2019-08-02$2.29$2.29234,400——
2019-08-01$2.38$2.38131,200——
2019-07-31$2.40$2.40136,500——
2019-07-30$2.39$2.39114,100——
2019-07-29$2.35$2.35113,900——
2019-07-26$2.41$2.41248,000——
2019-07-25$2.33$2.33309,500——
2019-07-24$2.33$2.33262,600——
2019-07-23$2.31$2.31298,800——
2019-07-22$2.34$2.34472,100——
2019-07-19$2.35$2.351,198,000——
2019-07-18$2.33$2.33166,900——
2019-07-17$2.45$2.4573,900——
2019-07-16$2.49$2.49162,800——
2019-07-15$2.47$2.47116,000——
2019-07-12$2.45$2.45269,200——
2019-07-11$2.40$2.40323,100——
2019-07-10$2.45$2.45593,000——
2019-07-09$2.66$2.665,558,200——
2019-07-08$2.50$2.50159,600——
2019-07-05$2.42$2.4272,700——
2019-07-03$2.38$2.3870,900——
2019-07-02$2.36$2.3699,900——
2019-07-01$2.38$2.38146,700——
2019-06-28$2.38$2.38116,100——
2019-06-27$2.31$2.31218,400——
2019-06-26$2.23$2.23107,400——
2019-06-25$2.19$2.19194,800——
2019-06-24$2.20$2.20140,300——
2019-06-21$2.30$2.30111,800——
2019-06-20$2.31$2.31128,000——
2019-06-19$2.33$2.33160,300——
2019-06-18$2.36$2.36327,100——
2019-06-17$2.46$2.46236,200——
2019-06-14$2.58$2.58378,400——
2019-06-13$2.48$2.48199,200——
2019-06-12$2.35$2.35110,300——
2019-06-11$2.35$2.3582,900——
2019-06-10$2.34$2.34219,200——
2019-06-07$2.36$2.36247,500——
2019-06-06$2.32$2.32186,300——
2019-06-05$2.44$2.44361,800——
2019-06-04$2.45$2.45128,500——
2019-06-03$2.48$2.48115,900——
2019-05-31$2.43$2.43152,200——
2019-05-30$2.43$2.43124,500——
2019-05-29$2.49$2.49133,700——
2019-05-28$2.56$2.56200,100——
2019-05-24$2.51$2.51143,900——
2019-05-23$2.43$2.43144,300——
2019-05-22$2.44$2.44202,800——
2019-05-21$2.54$2.54147,300——
2019-05-20$2.45$2.45245,000——
2019-05-17$2.45$2.45228,700——
2019-05-16$2.61$2.61204,900——
2019-05-15$2.64$2.64255,100——
2019-05-14$2.63$2.63201,700——
2019-05-13$2.57$2.57510,900——
2019-05-10$2.77$2.77377,200——
2019-05-09$2.86$2.86340,100——
2019-05-08$2.99$2.99531,100——
2019-05-07$2.94$2.94164,900——
2019-05-06$3.04$3.04338,900——
2019-05-03$2.94$2.94330,900——
2019-05-02$2.89$2.89254,100——
2019-05-01$2.88$2.88223,900——
2019-04-30$2.86$2.86363,400——
2019-04-29$2.96$2.96674,200——
2019-04-26$2.81$2.81270,000——
2019-04-25$2.73$2.73236,200——
2019-04-24$2.71$2.71294,200——
2019-04-23$2.68$2.68482,900——
2019-04-22$2.71$2.71477,700——
2019-04-18$2.74$2.74662,100——
2019-04-17$2.82$2.82823,800——
2019-04-16$2.96$2.96570,200——
2019-04-15$3.00$3.00764,400——
2019-04-12$3.18$3.181,511,100——
2019-04-11$3.40$3.401,732,100——
2019-04-10$3.30$3.301,243,100——
2019-04-09$3.17$3.17670,300——
2019-04-08$3.22$3.22770,500——
2019-04-05$3.09$3.09630,800——
2019-04-04$3.17$3.17888,800——
2019-04-03$3.08$3.08832,700——
2019-04-02$3.00$3.001,134,500——
2019-04-01$3.25$3.251,677,900——
2019-03-29$2.90$2.90659,200——
2019-03-28$3.03$3.03586,400——
2019-03-27$2.99$2.99575,500——
2019-03-26$2.95$2.95876,100——
2019-03-25$2.91$2.91567,300——
2019-03-22$2.84$2.841,271,600——
2019-03-21$3.00$3.001,180,400——
2019-03-20$3.03$3.032,801,800——
2019-03-19$3.32$3.3220,681,600——
2019-03-18$2.89$2.89765,700——
2019-03-15$2.70$2.70683,300——
2019-03-14$2.75$2.75934,900——
2019-03-13$2.85$2.852,882,200——
2019-03-12$2.76$2.761,047,600——
2019-03-11$2.78$2.78966,100——
2019-03-08$2.88$2.887,264,100——
2019-03-07$4.54$4.5431,435,200——
2019-03-06$3.02$3.021,324,300——
2019-03-05$2.69$2.6971,800——
2019-03-04$2.66$2.6688,700——
2019-03-01$2.71$2.71129,500——
2019-02-28$2.69$2.69186,700——
2019-02-27$2.83$2.83109,100——
2019-02-26$2.81$2.81107,000——
2019-02-25$2.77$2.7795,400——
2019-02-22$2.81$2.81140,800——
2019-02-21$2.79$2.79221,300——
2019-02-20$2.86$2.86137,100——
2019-02-19$2.97$2.97189,700——
2019-02-15$2.99$2.99164,300——
2019-02-14$2.99$2.99148,700——
2019-02-13$3.05$3.05106,200——
2019-02-12$3.03$3.03143,900——
2019-02-11$2.98$2.98353,600——
2019-02-08$3.14$3.14179,500——
2019-02-07$3.20$3.20155,000——
2019-02-06$3.31$3.31212,200——
2019-02-05$3.23$3.23175,100——
2019-02-04$3.34$3.34173,000——
2019-02-01$3.33$3.33414,600——
2019-01-31$3.19$3.19264,200——
2019-01-30$3.32$3.32504,000——
2019-01-29$3.05$3.05889,400——
2019-01-28$3.20$3.20753,700——
2019-01-25$3.41$3.41700,500——
2019-01-24$3.42$3.421,417,800——
2019-01-23$3.33$3.332,078,400——
2019-01-22$3.37$3.372,699,100——
2019-01-18$2.91$2.91264,400——
2019-01-17$3.10$3.10415,700——
2019-01-16$3.15$3.152,466,300——
2019-01-15$2.74$2.74492,900——
2019-01-14$2.66$2.66116,100——
2019-01-11$2.68$2.68130,800——
2019-01-10$2.80$2.80131,200——
2019-01-09$2.76$2.76142,400——
2019-01-08$2.80$2.80249,900——
2019-01-07$2.85$2.85422,600——
2019-01-04$2.62$2.62302,600——
2019-01-03$2.54$2.54406,600——
2019-01-02$2.60$2.60778,000——