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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 May 20, 2025 is 5.85.
  • 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 90.8% above the current share price.
  • The Altimmune 52-week low stock price is 3.55, which is 39.3% below the current share price.
  • The average Altimmune stock price for the last 52 weeks is 6.64.
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 5.8467 7.1100 7.4500 3.6700 5.8500 -18.86%
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 $0.446B $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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Takeda Pharmaceutical (TAK) Japan $45.278B 9.01
Sandoz Group AG (SDZNY) Switzerland $20.747B 0.00
Summit Therapeutics (SMMT) United States $17.831B 0.00
Merck (MKKGY) Germany $16.820B 12.32
United Therapeutics (UTHR) United States $13.772B 12.18
Shionogi (SGIOY) Japan $13.084B 13.11
Neurocrine Biosciences (NBIX) United States $12.155B 41.63
IPSEN (IPSEY) France $9.731B 0.00
Orion OYJ (ORINY) Finland $8.979B 24.28
Corcept Therapeutics (CORT) United States $7.934B 64.50
Stevanato Group S.p.A (STVN) Italy $7.504B 45.89
Madrigal Pharmaceuticals (MDGL) United States $6.455B 0.00
Hikma Pharmaceuticals Plc (HKMPF) United Kingdom $5.976B 0.00
Grifols, S.A (GRFS) Spain $5.500B 0.00
Ionis Pharmaceuticals (IONS) United States $5.416B 0.00
Ono Pharmaceutical (OPHLF) Japan $5.040B 15.33
Soleno Therapeutics (SLNO) United States $3.809B 0.00
Catalyst Pharmaceuticals (CPRX) United States $3.004B 10.53
Crinetics Pharmaceuticals (CRNX) United States $2.898B 0.00
Hypermarcas (HYPMY) Brazil $2.755B 18.12
AMNEAL PHARMACEUTICALS, INC (AMRX) United States $2.351B 12.71
BioCryst Pharmaceuticals (BCRX) United States $2.170B 0.00
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Recursion Pharmaceuticals (RXRX) United States $1.833B 0.00
Guardian Pharmacy Services (GRDN) United States $1.678B 0.00
Centessa Pharmaceuticals (CNTA) United Kingdom $1.638B 0.00
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Enanta Pharmaceuticals (ENTA) United States $0.127B 0.00
Larimar Therapeutics (LRMR) United States $0.125B 0.00
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Innate Pharma SA (IPHYF) France $0.122B 0.00
Achieve Life Sciences (ACHV) Canada $0.115B 0.00
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Cumberland Pharmaceuticals (CPIX) United States $0.082B 60.56
Arch Biopartners (ACHFF) Canada $0.080B 0.00
Inotiv (NOTV) United States $0.077B 0.00
Pyxis Oncology (PYXS) United States $0.076B 0.00
Telomir Pharmaceuticals (TELO) United States $0.076B 0.00
ESSA Pharma (EPIX) Canada $0.075B 0.00
Unicycive Therapeutics (UNCY) United States $0.073B 0.00
Surrozen (SRZN) United States $0.069B 0.00
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Gain Therapeutics (GANX) United States $0.058B 0.00
Prelude Therapeutics (PRLD) United States $0.052B 0.00
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Talphera (TLPH) United States $0.010B 0.00
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Kiora Pharmaceuticals (KPRX) United States $0.010B 0.00
Biomerica (BMRA) United States $0.009B 0.00
Addex Therapeutics (ADXN) Switzerland $0.009B 0.00
Phio Pharmaceuticals (PHIO) United States $0.009B 0.00
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Citius Pharmaceuticals (CTXR) United States $0.008B 0.00
Klotho Neurosciences (KLTO) United States $0.008B 0.00
Traws Pharma (TRAW) United States $0.007B 0.00
Lyra Therapeutics (LYRA) United States $0.007B 0.00
Nuvilex (PMCB) United States $0.007B 0.00
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XTL Biopharmaceuticals (XTLB) Israel $0.006B 0.00
Plus Therapeutics (PSTV) United States $0.006B 0.00
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Sonoma Pharmaceuticals (SNOA) United States $0.005B 0.00
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XORTX Therapeutics (XRTX) Canada $0.003B 0.00
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Redhill Biopharma (RDHL) Israel $0.003B 0.00
InMed Pharmaceuticals (INM) Canada $0.003B 0.00
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4D Pharma (LBPS) United Kingdom $0.000B 0.00
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