Altimmune - 21 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 January 16, 2026 is 4.24.

The all-time high Altimmune stock closing price was 2715.99 on March 14, 2006.
The Altimmune 52-week high stock price is 7.73, which is 82.3% above the current share price.
The Altimmune 52-week low stock price is 2.90, which is 31.6% below the current share price.
The average Altimmune stock price for the last 52 weeks is 4.84.

Altimmune Historical Annual Stock Price Data
Year	Average Stock Price	Year Open	Year High	Year Low	Year Close	Annual % Change
2026	4.0518	3.5100	4.2400	3.5100	4.2400	17.45%
2025	4.9668	7.1100	7.7100	3.3800	3.6100	-49.93%
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	$0.442B	$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
Chugai Pharmaceutical (CHGCY)	Japan	$85.303B	32.40
Zoetis (ZTS)	United States	$54.932B	19.66
Takeda Pharmaceutical (TAK)	Japan	$51.421B	10.49
Daiichi Sankyo, - (DSNKY)	Japan	$39.630B	19.74
BeOne Medicines - (ONC)	Switzerland	$37.087B	196.62
Sandoz Group AG (SDZNY)	Switzerland	$33.939B	0.00
United Therapeutics (UTHR)	United States	$20.018B	17.62
Merck (MKKGY)	Germany	$19.496B	12.02
Shionogi (SGIOY)	Japan	$15.261B	14.02
Neurocrine Biosciences (NBIX)	United States	$13.200B	31.67
Summit Therapeutics (SMMT)	United States	$13.140B	0.00
IPSEN (IPSEY)	France	$13.109B	0.00
Ionis Pharmaceuticals (IONS)	United States	$12.363B	0.00
Madrigal Pharmaceuticals (MDGL)	United States	$11.394B	0.00
Orion OYJ (ORINY)	Finland	$10.204B	29.15
Eisai (ESAIY)		$8.236B	0.00
Ono Pharmaceutical (OPHLF)	Japan	$6.576B	20.00
Stevanato Group S.p.A (STVN)	Italy	$5.981B	33.47
Crinetics Pharmaceuticals (CRNX)	United States	$5.313B	0.00
Hikma Pharmaceuticals Plc (HKMPF)	United Kingdom	$4.613B	0.00
AMNEAL PHARMACEUTICALS, INC (AMRX)	United States	$4.216B	20.01
Indivior (INDV)	United States	$4.068B	16.60
Corcept Therapeutics (CORT)	United States	$3.653B	39.47
NewAmsterdam Pharma (NAMS)	Netherlands	$3.589B	0.00
Hypermarcas (HYPMY)	Brazil	$3.047B	20.91
Centessa Pharmaceuticals (CNTA)	United Kingdom	$2.984B	0.00
Catalyst Pharmaceuticals (CPRX)	United States	$2.790B	8.90
Ocular Therapeutix (OCUL)	United States	$2.401B	0.00
Dyne Therapeutics (DYN)	United States	$2.386B	0.00
Soleno Therapeutics (SLNO)	United States	$2.282B	0.00
Avadel Pharmaceuticals (AVDL)	Ireland	$2.098B	0.00
Aurinia Pharmaceuticals Inc (AUPH)	Canada	$1.958B	23.20
Harrow (HROW)	United States	$1.774B	108.86
Guardian Pharmacy Services (GRDN)	United States	$1.712B	32.96
Ardelyx (ARDX)	United States	$1.640B	0.00
Oruka Therapeutics (ORKA)	United States	$1.617B	0.00
Enliven Therapeutics (ELVN)	United States	$1.585B	0.00
Amylyx Pharmaceuticals (AMLX)	United States	$1.570B	0.00
Collegium Pharmaceutical (COLL)	United States	$1.441B	7.14
BioCryst Pharmaceuticals (BCRX)	United States	$1.404B	83.25
Evotec AG (EVO)	Germany	$1.282B	0.00
Relay Therapeutics (RLAY)	United States	$1.274B	0.00
Xeris Biopharma Holdings (XERS)	United States	$1.248B	0.00
Savara (SVRA)	United States	$1.184B	0.00
ARS Pharmaceuticals (SPRY)	United States	$1.051B	0.00
Theravance Biopharma (TBPH)	United States	$1.014B	42.57
Cronos Group (CRON)	Canada	$0.967B	0.00
Xencor (XNCR)	United States	$0.913B	0.00
Nektar Therapeutics (NKTR)	United States	$0.766B	0.00
KalVista Pharmaceuticals (KALV)	United States	$0.738B	0.00
Ironwood Pharmaceuticals (IRWD)	United States	$0.732B	17.31
Esperion Therapeutics (ESPR)	United States	$0.727B	0.00
ProKidney (PROK)	United States	$0.689B	0.00
Rigel Pharmaceuticals (RIGL)	United States	$0.680B	6.07
Bioventus (BVS)	United States	$0.656B	13.44
Lexeo Therapeutics (LXEO)	United States	$0.539B	0.00
Elite Pharmaceuticals (ELTP)	United States	$0.506B	0.00
Lyell Immunopharma (LYEL)	United States	$0.505B	0.00
Zevra Therapeutics (ZVRA)	United States	$0.503B	0.00
Organogenesis (ORGO)	United States	$0.481B	0.00
Siga Technologies (SIGA)	United States	$0.471B	6.45
4D Molecular Therapeutics (FDMT)	United States	$0.431B	0.00
Nature's Sunshine Products (NATR)	United States	$0.421B	25.07
Aquestive Therapeutics (AQST)	United States	$0.404B	0.00
USANA Health Sciences (USNA)	United States	$0.401B	11.19
Akebia Therapeutics (AKBA)	United States	$0.361B	0.00
Achieve Life Sciences (ACHV)	Canada	$0.310B	0.00
Profound Medical (PROF)	Canada	$0.298B	0.00
Aclaris Therapeutics (ACRS)	United States	$0.284B	0.00
Avalo Therapeutics (AVTX)	United States	$0.279B	0.00
Aldeyra Therapeutics (ALDX)	United States	$0.279B	0.00
Relmada Therapeutics (RLMD)	United States	$0.274B	0.00
OmniAb (OABI)	United States	$0.274B	0.00
Heron Therapeutics (HRTX)	United States	$0.273B	0.00
Fractyl Health (GUTS)	United States	$0.262B	0.00
Larimar Therapeutics (LRMR)	United States	$0.259B	0.00
Protara Therapeutics (TARA)	United States	$0.259B	0.00
Silence Therapeutics (SLN)	United Kingdom	$0.238B	0.00
Enlivex Therapeutics (ENLV)	Israel	$0.223B	0.00
Journey Medical (DERM)	United States	$0.217B	0.00
Tonix Pharmaceuticals Holding (TNXP)	United States	$0.209B	0.00
Galectin Therapeutics (GALT)	United States	$0.196B	0.00
Minerva Neurosciences (NERV)	United States	$0.193B	0.00
Century Therapeutics (IPSC)	United States	$0.190B	0.00
Innate Pharma SA (IPHYF)	France	$0.181B	0.00
MediWound (MDWD)	Israel	$0.180B	0.00
Surrozen (SRZN)	United States	$0.171B	0.00
AleAnna (ANNA)	United States	$0.171B	0.00
VAXART, INC (VXRT)	United States	$0.169B	0.00
Procaps Group, S.A (PROCF)	Luxembourg	$0.161B	0.00
Corbus Pharmaceuticals Holdings (CRBP)	United States	$0.146B	0.00
Unicycive Therapeutics (UNCY)	United States	$0.133B	0.00
Context Therapeutics (CNTX)	United States	$0.132B	0.00
Incannex Healthcare (IXHL)	Australia	$0.131B	0.00
Inhibikase Therapeutics (IKT)	United States	$0.126B	0.00
Avita Medical (RCEL)	United States	$0.119B	0.00
Verrica Pharmaceuticals (VRCA)	United States	$0.116B	0.00
Karyopharm Therapeutics (KPTI)	United States	$0.116B	0.00
Prelude Therapeutics (PRLD)	United States	$0.114B	0.00
Pyxis Oncology (PYXS)	United States	$0.110B	0.00
Cardiol Therapeutics (CRDL)	Canada	$0.105B	0.00
Champions Oncology (CSBR)	United States	$0.100B	42.41
Cassava Sciences (SAVA)	United States	$0.099B	0.00
Vivani Medical (VANI)	United States	$0.093B	0.00
Korro Bio (KRRO)	United States	$0.083B	0.00
Assertio Holdings (ASRT)	United States	$0.074B	0.00
Gain Therapeutics (GANX)	United States	$0.070B	0.00
Cumberland Pharmaceuticals (CPIX)	United States	$0.070B	58.13
PolyPid (PYPD)	Israel	$0.069B	0.00
Dominari Holdings (DOMH)	United States	$0.069B	0.00
NRx Pharmaceuticals (NRXP)	United States	$0.067B	0.00
Arch Biopartners (ACHFF)	Canada	$0.066B	0.00
Rafael Holdings (RFL)	United States	$0.064B	0.00
Acrivon Therapeutics (ACRV)	United States	$0.062B	0.00
Metagenomi (MGX)	United States	$0.062B	0.00
Lipocine (LPCN)	United States	$0.062B	0.00
PMV Pharmaceuticals (PMVP)	United States	$0.060B	0.00
ElectroCore (ECOR)	United States	$0.057B	0.00
Nutriband (NTRB)	United States	$0.053B	0.00
Lite Strategy (LITS)	United States	$0.053B	0.00
Telomir Pharmaceuticals (TELO)	United States	$0.048B	0.00
Talphera (TLPH)	United States	$0.047B	0.00
Reviva Pharmaceuticals Holdings (RVPH)	United States	$0.041B	0.00
Plus Therapeutics (PSTV)	United States	$0.040B	0.00
FibroGen (FGEN)	United States	$0.039B	0.00
Kyntra Bio Inc (KYNB)	United States	$0.037B	0.00
Wellgistics Health (WGRX)	United States	$0.036B	0.00
Mural Oncology (MURA)	Ireland	$0.035B	0.00
MARKER THERAPEUTICS, INC (MRKR)	United States	$0.030B	0.00
Jupiter Neurosciences (JUNS)	United States	$0.030B	0.00
Natural Alternatives (NAII)	United States	$0.029B	0.00
SCYNEXIS (SCYX)	United States	$0.027B	0.00
TherapeuticsMD (TXMD)	United States	$0.026B	0.00
Klotho Neurosciences (KLTO)	United States	$0.024B	0.00
Scienture Holdings (SCNX)	United States	$0.022B	0.00
Liminatus Pharma (LIMN)	United States	$0.021B	0.00
Cosmos Health (COSM)	United States	$0.020B	0.00
Vivos Therapeutics (VVOS)	United States	$0.020B	0.00
Inotiv (NOTV)	United States	$0.020B	0.00
VYNE Therapeutics (VYNE)	United States	$0.019B	0.00
Iterum Therapeutics (ITRM)	Ireland	$0.018B	0.00
Citius Pharmaceuticals (CTXR)	United States	$0.018B	0.00
Traws Pharma (TRAW)	United States	$0.016B	0.02
Vyome Holdings (HIND)	United States	$0.016B	0.00
Mannatech (MTEX)	United States	$0.014B	0.00
Tempest Therapeutics (TPST)	United States	$0.013B	0.00
BioLineRx (BLRX)	Israel	$0.013B	0.00
Phio Pharmaceuticals (PHIO)	United States	$0.012B	0.00
CASI Pharmaceuticals (CASI)	China	$0.012B	0.00
China SXT Pharmaceuticals (SXTC)	China	$0.011B	0.00
Addex Therapeutics (ADXN)	Switzerland	$0.010B	0.00
Curanex Pharmaceuticals Inc (CURX)	United States	$0.010B	0.00
Mangoceuticals (MGRX)	United States	$0.010B	0.00
Ernexa Therapeutics (ERNA)	United States	$0.010B	0.00
Ainos (AIMD)	United States	$0.009B	0.00
BioVie (BIVI)	United States	$0.009B	0.00
Nuvilex (PMCB)	United States	$0.009B	0.00
XTL Biopharmaceuticals (XTLB)	Israel	$0.009B	0.00
Quoin Pharmaceuticals (QNRX)	United States	$0.009B	0.00
TransCode Therapeutics (RNAZ)	United States	$0.008B	0.00
Heatwurx (PCSA)	United States	$0.008B	0.00
Kiora Pharmaceuticals (KPRX)	United States	$0.008B	0.00
Biomerica (BMRA)	United States	$0.008B	0.00
Indaptus Therapeutics (INDP)	United States	$0.007B	0.00
Alaunos Therapeutics (TCRT)	United States	$0.007B	0.00
Redhill Biopharma (RDHL)	Israel	$0.007B	0.00
Aptorum Group (APM)	United Kingdom	$0.007B	0.00
Decoy Therapeutics Inc (DCOY)	United States	$0.006B	0.00
Sonoma Pharmaceuticals (SNOA)	United States	$0.006B	0.00
Xenetic Biosciences (XBIO)	United States	$0.006B	0.00
Jaguar Animal Health (JAGX)	United States	$0.005B	0.00
Salarius Pharmaceuticals (SLRX)	United States	$0.005B	0.00
XORTX Therapeutics (XRTX)	Canada	$0.004B	0.00
Clearmind Medicine (CMND)	Canada	$0.004B	0.00
Lyra Therapeutics (LYRA)	United States	$0.004B	0.00
InMed Pharmaceuticals (INM)	Canada	$0.003B	0.00
Shuttle Pharmaceuticals Holdings (SHPH)	United States	$0.003B	0.00
60 Degrees Pharmaceuticals (SXTP)	United States	$0.003B	0.00
Universe Pharmaceuticals INC (UPC)	China	$0.003B	0.00
CDT Equity (CDT)	United States	$0.002B	0.00
PainReform (PRFX)	Israel	$0.002B	0.00
Galmed Pharmaceuticals (GLMD)	Israel	$0.001B	0.00
Aditxt (ADTX)	United States	$0.001B	0.00
SciSparc (SPRC)	Israel	$0.001B	0.00
Emisphere Technologies (EMIS)	United States	$0.000B	0.00
Grifols, S.A (GRFS)	Spain	$0.000B	0.00
4D Pharma (LBPS)	United Kingdom	$0.000B	0.00
Patheon (PTHN)	Netherlands	$0.000B	0.00
RVL Pharmaceuticals (RVLP)	United States	$0.000B	0.00