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Altimmune - 20 Year Stock Price History | ALT

Historical daily share price chart and data for Altimmune since 2005 adjusted for splits and dividends. The latest closing stock price for Altimmune as of April 28, 2025 is 5.06.
  • The all-time high Altimmune stock closing price was 2715.99 on March 14, 2006.
  • The Altimmune 52-week high stock price is 11.16, which is 120.6% above the current share price.
  • The Altimmune 52-week low stock price is 3.55, which is 29.8% below the current share price.
  • The average Altimmune stock price for the last 52 weeks is 6.78.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
  
Altimmune Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 5.9084 7.1100 7.4500 3.6700 5.0600 -29.82%
2024 7.9675 10.5200 13.8100 5.5000 7.2100 -35.91%
2023 5.8349 15.6300 16.8300 2.1400 11.2500 -31.61%
2022 9.9264 9.4500 22.4100 3.9400 16.4500 79.59%
2021 13.1190 12.7100 24.3100 8.4300 9.1600 -18.79%
2020 9.9692 1.9213 33.2600 1.6900 11.2800 496.83%
2019 2.4223 2.6000 4.5400 1.5300 1.8900 -8.25%
2018 20.8270 60.0000 60.9000 1.7200 2.0600 -96.55%
2017 208.3243 987.0900 1017.0000 46.5000 59.7000 -93.86%
2016 718.6551 550.3780 972.1340 466.6240 972.1340 71.05%
2015 492.4100 514.4830 583.2810 388.8540 568.3250 4.97%
2014 516.0398 586.2720 711.9010 375.9920 541.4040 -2.69%
2013 522.7287 349.9680 702.9280 338.0040 556.3600 66.07%
2012 403.7982 382.8710 586.2720 302.1090 335.0120 -11.81%
2011 793.7670 1277.2300 1277.2300 323.0480 379.8800 -69.98%
2010 611.1923 544.3950 1292.1900 385.8620 1265.2700 115.83%
2009 814.0964 717.8540 1268.2600 361.9330 586.2420 -14.79%
2008 690.5917 1148.6100 1157.5900 254.2510 687.9720 -41.77%
2007 1894.4233 2249.3700 2273.3000 1088.4900 1181.5200 -46.69%
2006 2277.9644 2093.8300 2715.9900 2081.8600 2216.4700 4.07%
Sector Industry Market Cap Revenue
Medical Medical - Drug Manufacturing $0.350B $0.000B
Altimmune, Inc. is a clinical-stage immunotherapeutics company. It focused on the development of products to stimulate robust and durable immune responses for the prevention and treatment of disease. The company's proprietary platform technologies consist of RespirVec and Densigen. Altimmune Inc., formerly known as Pharmathene Inc., is based in Gaithersburg, United States.
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Summit Therapeutics (SMMT) United States $18.154B 0.00
Sandoz Group AG (SDZNY) Switzerland $17.706B 0.00
Merck (MKKGY) Germany $17.202B 14.23
Astellas Pharma (ALPMY) Japan $16.920B 11.99
Shionogi (SGIOY) Japan $14.087B 0.00
United Therapeutics (UTHR) United States $12.788B 11.57
Neurocrine Biosciences (NBIX) United States $10.030B 30.82
IPSEN (IPSEY) France $8.640B 0.00
Orion OYJ (ORINY) Finland $7.957B 22.55
Madrigal Pharmaceuticals (MDGL) United States $6.661B 0.00
Stevanato Group S.p.A (STVN) Italy $6.620B 42.04
Corcept Therapeutics (CORT) United States $6.567B 50.19
Hikma Pharmaceuticals Plc (HKMPF) United Kingdom $5.813B 0.00
Ono Pharmaceutical (OPHLF) Japan $5.547B 11.36
Grifols, S.A (GRFS) Spain $4.868B 0.00
Ionis Pharmaceuticals (IONS) United States $4.515B 0.00
Soleno Therapeutics (SLNO) United States $3.209B 0.00
Crinetics Pharmaceuticals (CRNX) United States $2.831B 0.00
Catalyst Pharmaceuticals (CPRX) United States $2.747B 11.15
AMNEAL PHARMACEUTICALS, INC (AMRX) United States $2.281B 14.15
Recursion Pharmaceuticals (RXRX) United States $2.211B 0.00
Hypermarcas (HYPMY) Brazil $2.128B 8.40
NewAmsterdam Pharma (NAMS) Netherlands $1.794B 0.00
Centessa Pharmaceuticals (CNTA) United Kingdom $1.638B 0.00
BioCryst Pharmaceuticals (BCRX) United States $1.546B 0.00
Guardian Pharmacy Services (GRDN) United States $1.526B 0.00
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CytoDyn (CYDY) United States $0.251B 0.00
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Procaps Group, S.A (PROCF) Luxembourg $0.164B 0.00
Nanobiotix S.A (NBTX) France $0.155B 0.00
Journey Medical (DERM) United States $0.144B 0.00
Profound Medical (PROF) Canada $0.144B 0.00
Protara Therapeutics (TARA) United States $0.143B 0.00
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Inhibikase Therapeutics (IKT) United States $0.141B 0.00
Regulus Therapeutics (RGLS) United States $0.136B 0.00
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Aclaris Therapeutics (ACRS) United States $0.123B 0.00
Larimar Therapeutics (LRMR) United States $0.122B 0.00
Innate Pharma SA (IPHYF) France $0.122B 0.00
Nektar Therapeutics (NKTR) United States $0.118B 0.00
Ironwood Pharmaceuticals (IRWD) United States $0.118B 36.33
Champions Oncology (CSBR) United States $0.110B 18.11
Enanta Pharmaceuticals (ENTA) United States $0.109B 0.00
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Arch Biopartners (ACHFF) Canada $0.084B 0.00
Cardiol Therapeutics (CRDL) Canada $0.083B 0.00
ESSA Pharma (EPIX) Canada $0.079B 0.00
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Corbus Pharmaceuticals Holdings (CRBP) United States $0.074B 0.00
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Cassava Sciences (SAVA) United States $0.070B 0.00
Achieve Life Sciences (ACHV) Canada $0.069B 0.00
Cumberland Pharmaceuticals (CPIX) United States $0.066B 0.00
Vivani Medical (VANI) United States $0.063B 0.00
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Avalo Therapeutics (AVTX) United States $0.047B 0.00
Century Therapeutics (IPSC) United States $0.047B 0.00
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NRx Pharmaceuticals (NRXP) United States $0.033B 0.00
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CASI Pharmaceuticals (CASI) China $0.024B 0.00
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Traws Pharma (TRAW) United States $0.010B 0.00
Biomerica (BMRA) United States $0.010B 0.00
Ernexa Therapeutics (ERNA) United States $0.010B 0.00
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Citius Pharmaceuticals (CTXR) United States $0.009B 0.00
Ainos (AIMD) United States $0.008B 0.00
Kiora Pharmaceuticals (KPRX) United States $0.008B 2.68
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Talphera (TLPH) United States $0.008B 0.00
Carisma Therapeutics (CARM) United States $0.008B 0.00
Addex Therapeutics (ADXN) Switzerland $0.008B 0.00
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TransCode Therapeutics (RNAZ) United States $0.006B 0.00
XTL Biopharmaceuticals (XTLB) Israel $0.006B 0.00
Lyra Therapeutics (LYRA) United States $0.006B 0.00
NLS Pharmaceutics (NLSP) Switzerland $0.005B 0.00
Clearmind Medicine (CMND) Canada $0.005B 0.00
Klotho Neurosciences (KLTO) United States $0.005B 0.00
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XORTX Therapeutics (XRTX) Canada $0.004B 0.00
InMed Pharmaceuticals (INM) Canada $0.003B 0.00
Quoin Pharmaceuticals (QNRX) United States $0.003B 0.00
SciSparc (SPRC) Israel $0.003B 0.00
Redhill Biopharma (RDHL) Israel $0.003B 0.00
Qualigen Therapeutics (QLGN) United States $0.002B 0.00
Galmed Pharmaceuticals (GLMD) Israel $0.002B 0.00
Petros Pharmaceuticals (PTPI) United States $0.002B 0.00
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Salarius Pharmaceuticals (SLRX) United States $0.001B 0.00
Heatwurx (PCSA) United States $0.001B 0.00
SHINECO (SISI) China $0.001B 0.00
Universe Pharmaceuticals INC (UPC) China $0.000B 0.00
Aditxt (ADTX) United States $0.000B 0.00
4D Pharma (LBPS) United Kingdom $0.000B 0.00
Patheon (PTHN) Netherlands $0.000B 0.00
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