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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 July 30, 2025 is 3.65.
  • 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 205.8% above the current share price.
  • The Altimmune 52-week low stock price is 2.90, which is 20.5% below the current share price.
  • The average Altimmune stock price for the last 52 weeks is 6.33.
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 5.6276 7.1100 7.7100 3.5000 3.6500 -49.38%
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 718.6553 550.3780 972.1340 466.6240 972.1340 71.05%
2015 492.4101 514.4830 583.2810 388.8540 568.3250 4.97%
2014 516.0398 586.2720 711.9020 375.9920 541.4040 -2.69%
2013 522.7288 349.9690 702.9280 338.0040 556.3600 66.07%
2012 403.7983 382.8710 586.2720 302.1090 335.0120 -11.81%
2011 793.7671 1277.2300 1277.2300 323.0480 379.8800 -69.98%
2010 611.1924 544.3950 1292.1900 385.8620 1265.2700 115.83%
2009 814.0965 717.8540 1268.2600 361.9330 586.2420 -14.79%
2008 690.5919 1148.6100 1157.5900 254.2510 687.9720 -41.77%
2007 1894.4241 2249.3700 2273.3000 1088.4900 1181.5200 -46.69%
2006 2277.9649 2093.8300 2715.9900 2081.8600 2216.4700 4.07%
Sector Industry Market Cap Revenue
Medical Medical - Drug Manufacturing $0.311B $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.
Stock Name Country Market Cap PE Ratio
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Daiichi Sankyo, - (DSNKY) Japan $46.317B 23.74
Takeda Pharmaceutical (TAK) Japan $45.565B 9.06
BeOne Medicines - (ONC) Cayman Islands $33.509B 0.00
Sandoz Group AG (SDZNY) Switzerland $25.995B 0.00
Summit Therapeutics (SMMT) United States $19.859B 0.00
Merck (MKKGY) Germany $16.905B 12.39
Shionogi (SGIOY) Japan $14.275B 14.30
United Therapeutics (UTHR) United States $13.422B 11.87
Neurocrine Biosciences (NBIX) United States $13.280B 45.49
Orion OYJ (ORINY) Finland $11.409B 27.50
IPSEN (IPSEY) France $10.846B 0.00
Stevanato Group S.p.A (STVN) Italy $7.653B 46.80
Corcept Therapeutics (CORT) United States $7.232B 58.79
Grifols, S.A (GRFS) Spain $7.219B 0.00
Ionis Pharmaceuticals (IONS) United States $6.602B 0.00
Madrigal Pharmaceuticals (MDGL) United States $6.537B 0.00
Hikma Pharmaceuticals Plc (HKMPF) United Kingdom $6.204B 0.00
Ono Pharmaceutical (OPHLF) Japan $5.214B 15.86
Soleno Therapeutics (SLNO) United States $4.232B 0.00
Hypermarcas (HYPMY) Brazil $2.971B 19.54
Crinetics Pharmaceuticals (CRNX) United States $2.741B 0.00
Catalyst Pharmaceuticals (CPRX) United States $2.563B 8.98
NewAmsterdam Pharma (NAMS) Netherlands $2.558B 0.00
AMNEAL PHARMACEUTICALS, INC (AMRX) United States $2.536B 13.71
Centessa Pharmaceuticals (CNTA) United Kingdom $2.032B 0.00
Ocular Therapeutix (OCUL) United States $1.872B 0.00
Endo (NDOI) United States $1.813B 0.00
ARS Pharmaceuticals (SPRY) United States $1.743B 0.00
BioCryst Pharmaceuticals (BCRX) United States $1.693B 0.00
Evotec AG (EVO) Germany $1.506B 0.00
Dyne Therapeutics (DYN) United States $1.309B 0.00
Guardian Pharmacy Services (GRDN) United States $1.287B 0.00
Harrow (HROW) United States $1.267B 0.00
Aurinia Pharmaceuticals Inc (AUPH) Canada $1.209B 24.18
Avadel Pharmaceuticals (AVDL) Ireland $1.028B 0.00
Ardelyx (ARDX) United States $1.010B 0.00
Collegium Pharmaceutical (COLL) United States $1.003B 5.41
Enliven Therapeutics (ELVN) United States $0.985B 0.00
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Cronos Group (CRON) Canada $0.775B 0.00
Amylyx Pharmaceuticals (AMLX) United States $0.709B 0.00
KalVista Pharmaceuticals (KALV) United States $0.687B 0.00
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Relay Therapeutics (RLAY) United States $0.621B 0.00
Organogenesis (ORGO) United States $0.605B 0.00
Zevra Therapeutics (ZVRA) United States $0.591B 0.00
Elite Pharmaceuticals (ELTP) United States $0.585B 0.00
Tourmaline Bio (TRML) United States $0.583B 0.00
USANA Health Sciences (USNA) United States $0.564B 11.33
Theravance Biopharma (TBPH) United States $0.552B 0.00
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Oruka Therapeutics (ORKA) United States $0.514B 0.00
Siga Technologies (SIGA) United States $0.501B 10.46
Savara (SVRA) United States $0.453B 0.00
Aquestive Therapeutics (AQST) United States $0.390B 0.00
Rigel Pharmaceuticals (RIGL) United States $0.356B 9.61
AleAnna (ANNA) United States $0.354B 0.00
Nanobiotix S.A (NBTX) France $0.327B 0.00
Tonix Pharmaceuticals Holding (TNXP) United States $0.314B 0.00
Aldeyra Therapeutics (ALDX) United States $0.305B 0.00
Esperion Therapeutics (ESPR) United States $0.291B 0.00
Nektar Therapeutics (NKTR) United States $0.284B 0.00
Heron Therapeutics (HRTX) United States $0.282B 0.00
Nature's Sunshine Products (NATR) United States $0.270B 24.83
OmniAb (OABI) United States $0.239B 0.00
Larimar Therapeutics (LRMR) United States $0.226B 0.00
MediWound (MDWD) Israel $0.214B 0.00
Galectin Therapeutics (GALT) United States $0.209B 0.00
4D Molecular Therapeutics (FDMT) United States $0.202B 0.00
Lyell Immunopharma (LYEL) United States $0.191B 0.00
China SXT Pharmaceuticals (SXTC) China $0.179B 0.00
Journey Medical (DERM) United States $0.177B 0.00
Liminatus Pharma (LIMN) United States $0.174B 0.00
Aclaris Therapeutics (ACRS) United States $0.168B 0.00
Profound Medical (PROF) Canada $0.164B 0.00
Avita Medical (RCEL) United States $0.152B 0.00
Ironwood Pharmaceuticals (IRWD) United States $0.144B 0.00
Korro Bio (KRRO) United States $0.142B 0.00
Lexeo Therapeutics (LXEO) United States $0.136B 0.00
Protara Therapeutics (TARA) United States $0.128B 0.00
Inhibikase Therapeutics (IKT) United States $0.126B 0.00
Cardiol Therapeutics (CRDL) Canada $0.121B 0.00
Corbus Pharmaceuticals Holdings (CRBP) United States $0.113B 0.00
Innate Pharma SA (IPHYF) France $0.110B 0.00
Cassava Sciences (SAVA) United States $0.107B 0.00
VAXART, INC (VXRT) United States $0.091B 0.00
Fractyl Health (GUTS) United States $0.089B 0.00
Vivani Medical (VANI) United States $0.089B 0.00
Achieve Life Sciences (ACHV) Canada $0.088B 0.00
Champions Oncology (CSBR) United States $0.088B 20.06
Metagenomi (MGX) United States $0.088B 0.00
Nutriband (NTRB) United States $0.084B 0.00
ESSA Pharma (EPIX) Canada $0.083B 0.00
Arch Biopartners (ACHFF) Canada $0.080B 0.00
Surrozen (SRZN) United States $0.079B 0.00
PMV Pharmaceuticals (PMVP) United States $0.075B 0.00
Context Therapeutics (CNTX) United States $0.074B 0.00
Dominari Holdings (DOMH) United States $0.071B 0.00
Avalo Therapeutics (AVTX) United States $0.071B 0.00
Pyxis Oncology (PYXS) United States $0.071B 0.00
Rafael Holdings (RFL) United States $0.070B 0.00
Inotiv (NOTV) United States $0.070B 0.00
Assertio Holdings (ASRT) United States $0.068B 0.00
Wellgistics Health (WGRX) United States $0.067B 0.00
Telomir Pharmaceuticals (TELO) United States $0.061B 0.00
Allergy Therapeutics (AGYTF) United Kingdom $0.059B 0.00
DURECT (DRRX) United States $0.058B 0.00
Verrica Pharmaceuticals (VRCA) United States $0.058B 0.00
Unicycive Therapeutics (UNCY) United States $0.056B 0.00
BioNxt Solutions (BNXTF) Canada $0.053B 0.00
Cumberland Pharmaceuticals (CPIX) United States $0.052B 38.78
ElectroCore (ECOR) United States $0.052B 0.00
Century Therapeutics (IPSC) United States $0.050B 0.00
NRx Pharmaceuticals (NRXP) United States $0.050B 0.00
Gain Therapeutics (GANX) United States $0.047B 0.00
Prelude Therapeutics (PRLD) United States $0.047B 0.00
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Klotho Neurosciences (KLTO) United States $0.044B 0.00
Acrivon Therapeutics (ACRV) United States $0.042B 0.00
Mural Oncology (MURA) Ireland $0.041B 0.00
Karyopharm Therapeutics (KPTI) United States $0.036B 0.00
PolyPid (PYPD) Israel $0.036B 0.00
Enlivex Therapeutics (ENLV) Israel $0.034B 0.00
Plus Therapeutics (PSTV) United States $0.032B 0.00
Incannex Healthcare (IXHL) Australia $0.031B 0.00
Iterum Therapeutics (ITRM) Ireland $0.030B 0.00
FibroGen (FGEN) United States $0.029B 0.00
SCYNEXIS (SCYX) United States $0.028B 0.00
Tempest Therapeutics (TPST) United States $0.027B 0.00
Vivos Therapeutics (VVOS) United States $0.026B 0.00
Scienture Holdings (SCNX) United States $0.026B 0.00
Cosmos Health (COSM) United States $0.024B 0.00
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Reviva Pharmaceuticals Holdings (RVPH) United States $0.023B 0.00
VYNE Therapeutics (VYNE) United States $0.022B 0.00
Relmada Therapeutics (RLMD) United States $0.021B 0.00
CASI Pharmaceuticals (CASI) China $0.019B 0.00
Mannatech (MTEX) United States $0.018B 0.00
BioLineRx (BLRX) Israel $0.018B 0.00
Lipocine (LPCN) United States $0.018B 0.00
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Citius Pharmaceuticals (CTXR) United States $0.016B 0.00
ProPhase Labs (PRPH) United States $0.015B 0.00
Carisma Therapeutics (CARM) United States $0.014B 0.00
Minerva Neurosciences (NERV) United States $0.014B 2.38
TherapeuticsMD (TXMD) United States $0.013B 0.00
Ernexa Therapeutics (ERNA) United States $0.013B 0.00
BioVie (BIVI) United States $0.013B 0.00
Phio Pharmaceuticals (PHIO) United States $0.012B 0.00
Ainos (AIMD) United States $0.010B 0.00
TransCode Therapeutics (RNAZ) United States $0.010B 0.00
Lyra Therapeutics (LYRA) United States $0.010B 0.00
XTL Biopharmaceuticals (XTLB) Israel $0.009B 0.00
Talphera (TLPH) United States $0.009B 0.00
Biomerica (BMRA) United States $0.009B 0.00
Aptorum Group (APM) United Kingdom $0.009B 0.00
Traws Pharma (TRAW) United States $0.009B 0.00
Addex Therapeutics (ADXN) Switzerland $0.009B 0.00
Mangoceuticals (MGRX) United States $0.008B 0.00
Kiora Pharmaceuticals (KPRX) United States $0.008B 0.00
Nuvilex (PMCB) United States $0.007B 0.00
NLS Pharmaceutics (NLSP) Switzerland $0.007B 0.00
Xenetic Biosciences (XBIO) United States $0.005B 0.00
Indaptus Therapeutics (INDP) United States $0.005B 0.00
InMed Pharmaceuticals (INM) Canada $0.005B 0.00
Sonoma Pharmaceuticals (SNOA) United States $0.005B 0.00
Quoin Pharmaceuticals (QNRX) United States $0.005B 0.00
Alaunos Therapeutics (TCRT) United States $0.005B 0.00
SHINECO (SISI) China $0.005B 0.00
Clearmind Medicine (CMND) Canada $0.004B 0.00
Qualigen Therapeutics (QLGN) United States $0.004B 0.00
XORTX Therapeutics (XRTX) Canada $0.004B 0.00
SciSparc (SPRC) Israel $0.004B 0.00
Redhill Biopharma (RDHL) Israel $0.003B 0.00
Galmed Pharmaceuticals (GLMD) Israel $0.003B 0.00
PainReform (PRFX) Israel $0.003B 0.00
CERo Therapeutics Holdings (CERO) United States $0.003B 0.00
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TNF Pharmaceuticals (TNFA) United States $0.002B 0.00
Salarius Pharmaceuticals (SLRX) United States $0.002B 0.00
60 Degrees Pharmaceuticals (SXTP) United States $0.002B 0.00
Shuttle Pharmaceuticals Holdings (SHPH) United States $0.002B 0.00
Conduit Pharmaceuticals (CDT) United States $0.002B 0.00
Universe Pharmaceuticals INC (UPC) China $0.000B 0.00
Indivior (INDV) United States $0.000B 10.10
4D Pharma (LBPS) United Kingdom $0.000B 0.00
MEI Pharma (MEIP) United States $0.000B 0.00
Patheon (PTHN) Netherlands $0.000B 0.00
RVL Pharmaceuticals (RVLP) United States $0.000B 0.00
Silence Therapeutics (SLN) United Kingdom $0.000B 0.00