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 — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$2.06$2.06300,000
2018-12-28$1.84$1.84280,500
2018-12-27$1.81$1.81145,900
2018-12-26$1.90$1.90255,900
2018-12-24$1.72$1.72171,900
2018-12-21$1.86$1.86427,900
2018-12-20$1.94$1.94338,600
2018-12-19$2.08$2.08277,900
2018-12-18$2.16$2.16803,100
2018-12-17$2.20$2.20407,800
2018-12-14$2.15$2.15606,200
2018-12-13$2.41$2.411,532,400
2018-12-12$3.05$3.05171,300
2018-12-11$3.05$3.05197,100
2018-12-10$3.08$3.08244,200
2018-12-07$3.19$3.19133,500
2018-12-06$3.20$3.20229,800
2018-12-04$3.25$3.25340,000
2018-12-03$3.49$3.49521,700
2018-11-30$3.59$3.591,078,300
2018-11-29$3.40$3.40129,500
2018-11-28$3.31$3.31451,600
2018-11-27$3.27$3.27240,100
2018-11-26$3.41$3.41449,600
2018-11-23$3.21$3.21255,800
2018-11-21$3.34$3.343,900,400
2018-11-20$3.04$3.04278,400
2018-11-19$3.15$3.15143,000
2018-11-16$3.20$3.20168,300
2018-11-15$3.28$3.28144,800
2018-11-14$3.28$3.28617,900
2018-11-13$3.40$3.40282,500
2018-11-12$3.52$3.52553,600
2018-11-09$3.71$3.71646,200
2018-11-08$3.91$3.91213,700
2018-11-07$4.02$4.02264,800
2018-11-06$3.97$3.97206,000
2018-11-05$3.99$3.99454,800
2018-11-02$4.00$4.00514,400
2018-11-01$4.00$4.00451,800
2018-10-31$3.81$3.81586,100
2018-10-30$3.97$3.97173,400
2018-10-29$4.04$4.04414,600
2018-10-26$4.08$4.08823,900
2018-10-25$4.14$4.141,316,400
2018-10-24$3.91$3.91413,700
2018-10-23$4.24$4.24696,300
2018-10-22$4.11$4.11498,600
2018-10-19$4.31$4.31717,600
2018-10-18$4.15$4.15827,100
2018-10-17$4.47$4.471,248,800
2018-10-16$4.65$4.654,975,900
2018-10-15$3.85$3.851,462,700
2018-10-12$4.16$4.161,099,300
2018-10-11$4.17$4.171,338,100
2018-10-10$4.59$4.591,426,400
2018-10-09$4.63$4.632,335,900
2018-10-08$4.94$4.9411,028,800
2018-10-05$7.24$7.2411,963,600
2018-10-04$4.70$4.70420,000
2018-10-03$4.75$4.75475,200
2018-10-02$4.61$4.61915,900
2018-10-01$4.98$4.982,835,400
2018-09-28$4.40$4.403,416,300
2018-09-27$8.78$8.78606,900
2018-09-26$12.13$12.13193,100
2018-09-25$13.09$13.09181,300
2018-09-24$13.90$13.90954,000
2018-09-21$26.19$26.19880,600
2018-09-20$26.23$26.232,412,800
2018-09-19$16.46$16.462,211,100
2018-09-18$4.27$4.2799,600
2018-09-17$4.89$4.89154,500
2018-09-14$5.45$5.45273,000
2018-09-13$7.80$7.8031,570
2018-09-12$8.64$8.645,173
2018-09-11$8.76$8.7616,230
2018-09-10$8.70$8.7013,210
2018-09-07$8.85$8.8512,767
2018-09-06$9.51$9.515,527
2018-09-05$9.30$9.3012,860
2018-09-04$9.60$9.6019,537
2018-08-31$9.60$9.6046,547
2018-08-30$9.33$9.3316,237
2018-08-29$9.30$9.3024,207
2018-08-28$9.21$9.219,437
2018-08-27$9.54$9.5414,153
2018-08-24$9.30$9.3025,990
2018-08-23$9.57$9.5717,223
2018-08-22$9.00$9.0016,873
2018-08-21$9.18$9.187,270
2018-08-20$9.30$9.3018,913
2018-08-17$9.90$9.9010,430
2018-08-16$10.20$10.208,747
2018-08-15$10.35$10.3518,680
2018-08-14$10.80$10.8062,970
2018-08-13$9.87$9.876,647
2018-08-10$9.30$9.305,633
2018-08-09$9.69$9.695,317
2018-08-08$10.11$10.1112,023
2018-08-07$10.02$10.0212,237
2018-08-06$9.60$9.6013,940
2018-08-03$10.05$10.0512,073
2018-08-02$10.14$10.1415,127
2018-08-01$9.60$9.6015,837
2018-07-31$9.99$9.9974,313
2018-07-30$11.10$11.1021,370
2018-07-27$11.13$11.1313,437
2018-07-26$11.46$11.468,777
2018-07-25$11.13$11.1312,017
2018-07-24$11.10$11.1015,993
2018-07-23$11.85$11.8517,310
2018-07-20$12.00$12.0041,623
2018-07-19$10.80$10.8047,583
2018-07-18$10.98$10.9823,727
2018-07-17$11.07$11.0794,260
2018-07-16$13.65$13.65109,973
2018-07-13$15.30$15.30153,567
2018-07-12$13.62$13.6252,460
2018-07-11$13.11$13.1129,000
2018-07-10$13.89$13.8918,420
2018-07-09$13.92$13.9244,810
2018-07-06$12.42$12.4221,137
2018-07-05$12.96$12.9613,333
2018-07-03$12.51$12.5119,817
2018-07-02$12.30$12.3034,160
2018-06-29$13.35$13.3525,873
2018-06-28$13.86$13.8623,240
2018-06-27$13.65$13.6554,093
2018-06-26$15.66$15.6618,023
2018-06-25$16.05$16.0539,130
2018-06-22$17.64$17.6414,403
2018-06-21$17.52$17.5214,090
2018-06-20$18.72$18.7221,150
2018-06-19$18.75$18.7559,460
2018-06-18$16.20$16.2036,230
2018-06-15$15.54$15.547,333
2018-06-14$15.87$15.8713,383
2018-06-13$15.09$15.0936,997
2018-06-12$16.80$16.8030,553
2018-06-11$16.80$16.8032,390
2018-06-08$19.74$19.7429,440
2018-06-07$20.40$20.4071,437
2018-06-06$20.61$20.6184,457
2018-06-05$17.70$17.7037,320
2018-06-04$16.77$16.7721,610
2018-06-01$17.61$17.6147,620
2018-05-31$18.30$18.3057,947
2018-05-30$16.35$16.3541,107
2018-05-29$15.30$15.3019,760
2018-05-25$15.06$15.0619,903
2018-05-24$15.30$15.3027,780
2018-05-23$16.59$16.59138,560
2018-05-22$15.24$15.2455,213
2018-05-21$13.35$13.3527,290
2018-05-18$15.30$15.3039,777
2018-05-17$15.15$15.1555,730
2018-05-16$17.28$17.2898,107
2018-05-15$16.02$16.0231,510
2018-05-14$15.60$15.6058,147
2018-05-11$15.93$15.9349,237
2018-05-10$17.10$17.1015,827
2018-05-09$18.00$18.0015,900
2018-05-08$18.30$18.3012,417
2018-05-07$18.06$18.0616,857
2018-05-04$18.90$18.9049,690
2018-05-03$18.57$18.5721,303
2018-05-02$20.58$20.589,363
2018-05-01$21.09$21.0913,273
2018-04-30$21.75$21.7527,540
2018-04-27$24.30$24.3020,687
2018-04-26$21.45$21.4511,033
2018-04-25$21.00$21.0011,770
2018-04-24$21.60$21.6011,673
2018-04-23$21.00$21.0013,030
2018-04-20$21.24$21.2414,320
2018-04-19$22.71$22.7110,910
2018-04-18$23.28$23.2812,103
2018-04-17$23.40$23.4017,720
2018-04-16$25.08$25.0812,120
2018-04-13$25.80$25.8011,690
2018-04-12$25.35$25.3534,823
2018-04-11$26.73$26.7323,743
2018-04-10$27.90$27.9034,083
2018-04-09$26.52$26.5212,433
2018-04-06$27.87$27.8712,513
2018-04-05$28.50$28.5012,833
2018-04-04$31.20$31.207,030
2018-04-03$32.10$32.108,400
2018-04-02$35.70$35.708,893
2018-03-29$34.80$34.808,207
2018-03-28$33.00$33.0023,767
2018-03-27$37.95$37.9536,603
2018-03-26$46.20$46.206,457
2018-03-23$45.90$45.9010,113
2018-03-22$45.60$45.608,870
2018-03-21$46.80$46.806,040
2018-03-20$47.40$47.406,040
2018-03-19$49.20$49.206,013
2018-03-16$48.90$48.908,953
2018-03-15$51.30$51.304,940
2018-03-14$51.60$51.6010,700
2018-03-13$54.00$54.0025,293
2018-03-12$52.20$52.2012,470
2018-03-09$52.50$52.5015,960
2018-03-08$50.10$50.1012,377
2018-03-07$46.80$46.808,940
2018-03-06$44.40$44.406,900
2018-03-05$47.10$47.106,053
2018-03-02$48.30$48.306,637
2018-03-01$47.40$47.408,943
2018-02-28$47.40$47.406,960
2018-02-27$46.20$46.209,477
2018-02-26$47.91$47.916,923
2018-02-23$45.60$45.603,190
2018-02-22$45.30$45.304,957
2018-02-21$47.70$47.7010,113
2018-02-20$44.40$44.406,740
2018-02-16$43.80$43.806,463
2018-02-15$44.10$44.104,673
2018-02-14$44.70$44.7015,103
2018-02-13$42.00$42.0010,703
2018-02-12$45.00$45.009,687
2018-02-09$46.80$46.809,740
2018-02-08$45.90$45.906,317
2018-02-07$47.10$47.103,850
2018-02-06$47.40$47.405,543
2018-02-05$48.00$48.005,220
2018-02-02$46.80$46.806,113
2018-02-01$48.90$48.908,287
2018-01-31$54.30$54.303,970
2018-01-30$54.90$54.905,557
2018-01-29$57.00$57.005,050
2018-01-26$54.60$54.603,433
2018-01-25$55.20$55.204,387
2018-01-24$57.90$57.907,977
2018-01-23$55.20$55.209,360
2018-01-22$54.60$54.602,830
2018-01-19$54.60$54.603,183
2018-01-18$55.50$55.503,350
2018-01-17$56.10$56.104,157
2018-01-16$57.00$57.006,590
2018-01-12$58.80$58.807,387
2018-01-11$58.50$58.506,670
2018-01-10$59.40$59.404,273
2018-01-09$59.55$59.557,843
2018-01-08$58.50$58.508,917
2018-01-05$60.90$60.908,663
2018-01-04$59.40$59.4010,423
2018-01-03$60.00$60.008,560
2018-01-02$60.00$60.0034,700