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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$11.28$11.281,277,900——
2020-12-30$11.30$11.301,788,900——
2020-12-29$11.00$11.001,845,800——
2020-12-28$11.10$11.101,974,300——
2020-12-24$11.45$11.452,637,800——
2020-12-23$12.62$12.622,267,100——
2020-12-22$13.55$13.551,322,200——
2020-12-21$13.44$13.441,721,800——
2020-12-18$12.47$12.471,644,900——
2020-12-17$12.89$12.891,545,700——
2020-12-16$12.27$12.271,132,600——
2020-12-15$12.53$12.531,671,200——
2020-12-14$13.34$13.343,610,800——
2020-12-11$11.97$11.971,141,000——
2020-12-10$12.27$12.27925,000——
2020-12-09$12.31$12.311,507,200——
2020-12-08$13.24$13.241,254,300——
2020-12-07$12.87$12.871,552,300——
2020-12-04$12.33$12.331,546,600——
2020-12-03$12.83$12.831,725,100——
2020-12-02$11.85$11.853,657,100——
2020-12-01$13.82$13.828,201,700——
2020-11-30$12.23$12.233,772,600——
2020-11-27$10.52$10.521,481,100——
2020-11-25$10.09$10.092,216,500——
2020-11-24$9.25$9.251,959,800——
2020-11-23$9.24$9.242,186,900——
2020-11-20$9.32$9.321,022,100——
2020-11-19$9.57$9.571,211,400——
2020-11-18$9.32$9.32920,100——
2020-11-17$9.51$9.51883,800——
2020-11-16$9.42$9.421,818,100——
2020-11-13$10.13$10.131,212,300——
2020-11-12$10.64$10.642,049,800——
2020-11-11$9.98$9.981,379,400——
2020-11-10$9.33$9.334,380,500——
2020-11-09$7.84$7.835,970,700——
2020-11-06$12.45$12.45653,600——
2020-11-05$12.40$12.40769,400——
2020-11-04$12.51$12.51762,300——
2020-11-03$11.65$11.65451,200——
2020-11-02$11.35$11.35473,700——
2020-10-30$11.45$11.451,087,800——
2020-10-29$11.43$11.431,597,900——
2020-10-28$11.20$11.20612,800——
2020-10-27$11.81$11.81496,600——
2020-10-26$11.81$11.81848,100——
2020-10-23$12.00$12.00540,800——
2020-10-22$11.68$11.68777,300——
2020-10-21$11.05$11.05828,400——
2020-10-20$11.39$11.391,393,700——
2020-10-19$12.19$12.191,225,700——
2020-10-16$12.97$12.971,008,500——
2020-10-15$13.13$13.131,930,600——
2020-10-14$12.80$12.802,939,400——
2020-10-13$14.22$14.2213,365,900——
2020-10-12$12.60$12.602,471,700——
2020-10-09$12.37$12.371,199,800——
2020-10-08$13.30$13.30804,300——
2020-10-07$13.78$13.78903,700——
2020-10-06$13.64$13.64849,400——
2020-10-05$13.87$13.87963,500——
2020-10-02$12.97$12.97735,000——
2020-10-01$12.93$12.93844,800——
2020-09-30$13.20$13.20979,300——
2020-09-29$13.01$13.011,373,800——
2020-09-28$12.30$12.301,217,500——
2020-09-25$12.92$12.922,262,200——
2020-09-24$12.03$12.03760,000——
2020-09-23$12.53$12.531,322,600——
2020-09-22$14.35$14.351,980,500——
2020-09-21$13.57$13.57882,100——
2020-09-18$14.12$14.122,456,000——
2020-09-17$14.02$14.023,076,700——
2020-09-16$13.84$13.842,636,400——
2020-09-15$12.45$12.451,337,400——
2020-09-14$13.24$13.241,808,900——
2020-09-11$12.09$12.091,296,200——
2020-09-10$11.93$11.931,972,200——
2020-09-09$12.54$12.541,021,100——
2020-09-08$12.65$12.651,294,700——
2020-09-04$12.43$12.431,206,200——
2020-09-03$13.41$13.411,008,100——
2020-09-02$14.61$14.611,421,000——
2020-09-01$15.09$15.091,838,300——
2020-08-31$16.87$16.871,378,100——
2020-08-28$17.62$17.621,272,900——
2020-08-27$18.22$18.221,047,400——
2020-08-26$18.42$18.423,319,200——
2020-08-25$21.57$21.571,366,200——
2020-08-24$21.99$21.991,511,200——
2020-08-21$24.04$24.041,542,300——
2020-08-20$26.07$26.071,341,500——
2020-08-19$24.43$24.431,032,900——
2020-08-18$25.76$25.761,317,000——
2020-08-17$26.56$26.561,535,600——
2020-08-14$24.66$24.661,018,800——
2020-08-13$23.70$23.70887,800——
2020-08-12$22.58$22.582,126,000——
2020-08-11$23.10$23.102,371,500——
2020-08-10$26.09$26.091,092,900——
2020-08-07$27.38$27.381,029,700——
2020-08-06$26.50$26.501,104,400——
2020-08-05$27.16$27.161,416,300——
2020-08-04$28.18$28.182,305,200——
2020-08-03$27.25$27.252,207,100——
2020-07-31$26.58$26.582,976,900——
2020-07-30$26.06$26.062,892,300——
2020-07-29$22.52$22.522,102,900——
2020-07-28$23.60$23.601,763,500——
2020-07-27$22.43$22.433,573,300——
2020-07-24$25.63$25.631,931,100——
2020-07-23$27.65$27.652,028,700——
2020-07-22$28.98$28.982,843,400——
2020-07-21$31.40$31.402,577,700——
2020-07-20$33.26$33.266,091,700——
2020-07-17$28.66$28.664,347,100——
2020-07-16$26.58$26.582,558,300——
2020-07-15$26.50$26.508,553,600——
2020-07-14$29.03$29.0316,127,500——
2020-07-13$25.00$25.0015,464,100——
2020-07-10$22.35$22.3517,919,500——
2020-07-09$20.22$20.2258,738,100——
2020-07-08$17.03$17.0318,213,700——
2020-07-07$11.19$11.192,484,200——
2020-07-06$9.93$9.931,181,200——
2020-07-02$10.42$10.421,642,200——
2020-07-01$9.94$9.942,755,700——
2020-06-30$10.71$10.711,672,100——
2020-06-29$10.42$10.425,812,600——
2020-06-26$10.60$10.606,409,200——
2020-06-25$9.19$9.192,945,400——
2020-06-24$8.38$8.381,263,300——
2020-06-23$8.35$8.351,411,300——
2020-06-22$8.18$8.183,027,400——
2020-06-19$7.40$7.40800,400——
2020-06-18$7.30$7.301,044,400——
2020-06-17$7.42$7.42872,000——
2020-06-16$7.75$7.751,614,100——
2020-06-15$7.68$7.682,929,900——
2020-06-12$7.54$7.542,255,700——
2020-06-11$7.11$7.112,760,800——
2020-06-10$6.05$6.051,320,700——
2020-06-09$6.47$6.471,155,900——
2020-06-08$6.95$6.951,974,800——
2020-06-05$7.56$7.561,606,800——
2020-06-04$7.55$7.552,719,800——
2020-06-03$8.33$8.331,592,600——
2020-06-02$8.95$8.951,959,500——
2020-06-01$8.64$8.643,287,000——
2020-05-29$9.28$9.284,291,300——
2020-05-28$8.18$8.183,300,600——
2020-05-27$8.09$8.096,698,000——
2020-05-26$8.42$8.4236,457,100——
2020-05-22$6.95$6.955,003,800——
2020-05-21$6.08$6.083,665,700——
2020-05-20$6.06$6.0612,302,300——
2020-05-19$4.93$4.932,837,900——
2020-05-18$4.50$4.501,731,300——
2020-05-15$4.48$4.482,714,500——
2020-05-14$4.49$4.4921,069,200——
2020-05-13$4.13$4.135,858,600——
2020-05-12$3.70$3.702,970,700——
2020-05-11$3.15$3.15460,800——
2020-05-08$3.11$3.11528,100——
2020-05-07$3.12$3.12349,600——
2020-05-06$3.10$3.10408,000——
2020-05-05$3.14$3.14381,400——
2020-05-04$3.15$3.15509,400——
2020-05-01$2.96$2.96601,500——
2020-04-30$3.05$3.05420,400——
2020-04-29$3.04$3.04568,200——
2020-04-28$3.09$3.09417,600——
2020-04-27$3.16$3.16425,700——
2020-04-24$3.16$3.16660,700——
2020-04-23$3.09$3.09306,100——
2020-04-22$3.07$3.07367,600——
2020-04-21$3.17$3.17579,400——
2020-04-20$3.23$3.23433,400——
2020-04-17$3.32$3.32474,500——
2020-04-16$3.46$3.461,255,100——
2020-04-15$3.41$3.41580,800——
2020-04-14$3.25$3.25371,600——
2020-04-13$3.26$3.26374,400——
2020-04-09$3.17$3.17658,500——
2020-04-08$3.35$3.351,845,000——
2020-04-07$3.35$3.353,150,500——
2020-04-06$2.97$2.97428,100——
2020-04-03$2.90$2.90371,500——
2020-04-02$3.02$3.02534,400——
2020-04-01$3.04$3.041,731,100——
2020-03-31$3.21$3.211,807,700——
2020-03-30$3.02$3.021,773,500——
2020-03-27$2.85$2.851,685,800——
2020-03-26$3.25$3.251,962,200——
2020-03-25$3.43$3.431,803,200——
2020-03-24$3.20$3.202,705,000——
2020-03-23$2.95$2.95746,200——
2020-03-20$2.94$2.94957,200——
2020-03-19$2.85$2.85797,200——
2020-03-18$2.82$2.82956,000——
2020-03-17$2.99$2.99776,300——
2020-03-16$2.89$2.891,084,700——
2020-03-13$2.89$2.891,342,000——
2020-03-12$3.30$3.301,307,400——
2020-03-11$3.19$3.195,055,100——
2020-03-10$2.61$2.611,828,700——
2020-03-09$3.16$3.162,229,300——
2020-03-06$3.80$3.805,011,700——
2020-03-05$3.37$3.372,907,300——
2020-03-04$2.85$2.852,026,000——
2020-03-03$3.26$3.265,880,500——
2020-03-02$3.16$3.165,219,400——
2020-02-28$3.70$3.7026,087,100——
2020-02-27$1.76$1.76484,000——
2020-02-26$1.69$1.69102,500——
2020-02-25$1.73$1.73157,800——
2020-02-24$1.77$1.77209,700——
2020-02-21$1.76$1.7674,400——
2020-02-20$1.77$1.7745,700——
2020-02-19$1.76$1.7660,200——
2020-02-18$1.71$1.7160,000——
2020-02-14$1.74$1.7474,100——
2020-02-13$1.71$1.71138,300——
2020-02-12$1.72$1.72109,400——
2020-02-11$1.77$1.77124,300——
2020-02-10$1.79$1.79153,400——
2020-02-07$1.80$1.80436,000——
2020-02-06$1.79$1.7980,100——
2020-02-05$1.81$1.81198,600——
2020-02-04$1.75$1.7592,100——
2020-02-03$1.76$1.7675,800——
2020-01-31$1.72$1.72297,900——
2020-01-30$1.77$1.77117,000——
2020-01-29$1.81$1.81185,200——
2020-01-28$1.83$1.83157,300——
2020-01-27$1.85$1.85194,500——
2020-01-24$1.91$1.91349,000——
2020-01-23$2.01$2.011,670,800——
2020-01-22$2.03$2.031,221,500——
2020-01-21$2.02$2.021,522,600——
2020-01-17$1.84$1.8457,600——
2020-01-16$1.82$1.8278,600——
2020-01-15$1.80$1.8043,200——
2020-01-14$1.77$1.7752,200——
2020-01-13$1.78$1.7871,000——
2020-01-10$1.85$1.8572,700——
2020-01-09$1.87$1.8756,100——
2020-01-08$1.88$1.8852,200——
2020-01-07$1.95$1.9560,200——
2020-01-06$1.95$1.9555,100——
2020-01-03$1.92$1.92136,700——
2020-01-02$1.92$1.92124,100——