Alexion Pharmaceuticals - 23 Year Stock Price History | ALXN

Historical daily share price chart and data for Alexion Pharmaceuticals since 1996 adjusted for splits. The latest closing stock price for Alexion Pharmaceuticals as of October 18, 2019 is 98.41.
  • The all-time high Alexion Pharmaceuticals stock closing price was 207.84 on July 23, 2015.
  • The Alexion Pharmaceuticals 52-week high stock price is 141.86, which is 44.2% above the current share price.
  • The Alexion Pharmaceuticals 52-week low stock price is 92.56, which is 5.9% below the current share price.
  • The average Alexion Pharmaceuticals stock price for the last 52 weeks is 119.27.
Alexion Pharmaceuticals Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2019 120.3018 98.0500 141.3000 94.8400 98.4100 1.08%
2018 120.0025 124.0500 139.0100 93.9400 97.3600 -18.59%
2017 125.7262 122.6300 146.6900 97.7000 119.5900 -2.26%
2016 134.8574 184.6800 184.9000 110.0100 122.3500 -35.86%
2015 177.6471 186.6000 207.8400 145.6000 190.7500 3.09%
2014 166.7312 133.4400 200.7900 129.8200 185.0300 39.24%
2013 104.9874 100.0500 132.9100 83.3900 132.8840 41.76%
2012 94.2987 70.5700 118.1500 70.2900 93.7400 31.10%
2011 53.8780 40.6650 71.5500 40.6650 71.5000 77.53%
2010 29.1347 24.1250 41.1700 22.7500 40.2750 64.99%
2009 20.1819 18.0650 24.4100 15.8250 24.4100 34.90%
2008 18.1343 18.8775 23.7525 12.7425 18.0950 -3.53%
2007 13.6236 10.1525 19.9500 8.9425 18.7575 85.76%
2006 8.7138 5.0725 11.3500 5.0150 10.0975 99.46%
2005 6.0305 6.0925 7.4975 4.6550 5.0625 -19.64%
2004 4.9553 4.3125 6.3750 3.3925 6.3000 48.15%
2003 3.8358 3.6250 5.2300 2.5850 4.2525 20.47%
2002 4.0792 5.7750 6.5650 2.3950 3.5300 -42.23%
2001 6.3246 15.3900 18.6875 3.7375 6.1100 -62.37%
2000 17.8134 7.3750 29.0750 6.9375 16.2350 115.53%
1999 3.2124 3.1250 7.8450 2.1095 7.5325 125.19%
1998 2.7282 2.9700 3.7500 1.5000 3.3450 7.04%
1997 2.7061 2.1875 3.8450 2.0313 3.1250 43.84%
Sector Industry Market Cap Revenue
Medical Medical - Biomedical and Genetics $22.420B $4.131B
Alexion Pharmaceuticals, Inc. is a global biopharmaceutical company focused on serving patients and families affected by rare diseases through the innovation, development and commercialization of life-changing therapies. Alexion is the global leader in complement inhibition and has developed and commercializes the first and only approved complement inhibitor to treat patients with paroxysmal nocturnal hemoglobinuria (PNH), atypical hemolytic uremic syndrome (aHUS), and anti-acetylcholine receptor (AchR) antibody-positive generalized myasthenia gravis (gMG). In addition, Alexion has two highly innovative enzyme replacement therapies for patients with life-threatening and ultra-rare metabolic disorders, hypophosphatasia (HPP) and lysosomal acid lipase deficiency (LAL-D).
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Genmab (GNMSF) Denmark $12.636B 70.88
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QIAGEN (QGEN) Netherlands $6.355B 20.87
BeiGene (BGNE) Cayman Islands $6.328B 0.00
Guardant Health (GH) United States $6.299B 0.00
Amarin (AMRN) Ireland $5.855B 0.00
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Reata Pharmaceuticals (RETA) United States $5.214B 0.00
Exelixis (EXEL) United States $5.149B 13.39
Bluebird Bio (BLUE) United States $5.048B 0.00
Moderna (MRNA) United States $4.801B 0.00
China Biologic Products (CBPO) China $4.553B 28.42
ARGENX SE-ADR (ARGX) Netherlands $4.494B 0.00
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Ascendis Pharma (ASND) Denmark $4.217B 0.00
Repligen (RGEN) United States $4.084B 79.26
Spark Therapeutics (ONCE) United States $3.887B 0.00
Blueprint Medicines (BPMC) United States $3.673B 0.00
MorphoSys AG (MOR) Germany $3.482B 0.00
Mirati Therapeutics (MRTX) United States $3.422B 0.00
Immunomedics (IMMU) United States $3.045B 0.00
Emergent Biosolutions (EBS) United States $2.795B 41.99
Alkermes (ALKS) Ireland $2.786B 0.00
Genmab (GMAB) Denmark $2.701B 0.00
Genomic Health (GHDX) United States $2.632B 49.36
MyoKardia (MYOK) United States $2.625B 0.00
Ultragenyx Pharmaceutical (RARE) United States $2.532B 0.00
Arena Pharmaceuticals (ARNA) United States $2.437B 5.24
Halozyme Therapeutics (HALO) United States $2.312B 0.00
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Myriad Genetics (MYGN) United States $2.263B 23.58
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NeoGenomics (NEO) United States $2.122B 113.50
Intercept Pharmaceuticals (ICPT) United States $2.106B 0.00
Amicus Therapeutics (FOLD) United States $2.083B 0.00
CRISPR Therapeutics AG (CRSP) Switzerland $2.072B 0.00
Ligand Pharmaceuticals (LGND) United States $2.057B 26.00
Cambrex (CBM) United States $2.002B 25.32
Zai Lab (ZLAB) China $1.983B 0.00
Akcea Therapeutics (AKCA) United States $1.761B 0.00
UniQure (QURE) Netherlands $1.674B 0.00
Alder BioPharmaceuticals (ALDR) United States $1.585B 0.00
Insmed (INSM) United States $1.564B 0.00
Nabriva Therapeutics AG (NBRV) Ireland $1.504B 0.00
Denali Therapeutics (DNLI) United States $1.451B 0.00
REGENXBIO (RGNX) United States $1.437B 0.00
Momenta Pharmaceuticals (MNTA) United States $1.397B 0.00
Coherus BioSciences (CHRS) United States $1.339B 0.00
Orchard Therapeutics (ORTX) United Kingdom $1.210B 0.00
Zymeworks (ZYME) Canada $1.176B 0.00
Innoviva (INVA) United States $1.107B 3.20
Dicerna Pharmaceuticals (DRNA) United States $1.080B 0.00
Alector (ALEC) United States $1.036B 0.00
AnaptysBio (ANAB) United States $1.009B 0.00
Editas Medicine (EDIT) United States $1.008B 0.00
Sangamo Therapeutics (SGMO) United States $0.998B 0.00
Fate Therapeutics (FATE) United States $0.960B 0.00
Epizyme (EPZM) United States $0.953B 0.00
ANI Pharmaceuticals (ANIP) United States $0.888B 14.83
Achillion Pharmaceuticals (ACHN) United States $0.866B 0.00
Zealand Pharma (ZEAL) Denmark $0.865B 9.71
BAVARIAN NORDIC (BVNRY) Denmark $0.856B 0.00
Athenex (ATNX) United States $0.835B 0.00
Codexis (CDXS) United States $0.808B 0.00
Twist Bioscience (TWST) United States $0.806B 0.00
Anika Therapeutics (ANIK) United States $0.803B 28.43
Cara Therapeutics (CARA) United States $0.788B 0.00
Principia Biopharma (PRNB) United States $0.761B 394.00
Vanda Pharmaceuticals (VNDA) United States $0.729B 26.31
Pharming Group (PHGUF) Netherlands $0.724B 0.00
Zealand Pharma (ZLDPF) Denmark $0.722B 0.00
WAVE Life Sciences (WVE) Singapore $0.721B 0.00
Vericel (VCEL) United States $0.684B 0.00
Revance Therapeutics (RVNC) United States $0.676B 0.00
Cytokineticsorporated (CYTK) United States $0.665B 0.00
ZIOPHARM Oncology Inc (ZIOP) United States $0.644B 0.00
Mesoblast (MESO) Australia $0.619B 0.00
Heska (HSKA) United States $0.596B 77.27
GENFIT S.A (GNFT) France $0.560B 0.00
MiMedx (MDXG) United States $0.556B 0.00
Intellia Therapeutics (NTLA) United States $0.555B 0.00
Arvinas (ARVN) United States $0.524B 0.00
Autolus Therapeutics (AUTL) United Kingdom $0.519B 0.00
Basilea Pharmaceutica AG (BPMUF) Switzerland $0.502B 0.00
PHARMA MAR SA (PHMMF) Spain $0.494B 0.00
Retrophin (RTRX) United States $0.491B 0.00
DBV Technologies S.A (DBVT) France $0.474B 0.00
Intra-Cellular Therapies (ITCI) United States $0.469B 0.00
UROGEN PHARMA (URGN) United States $0.468B 0.00
OXFORD BIOMEDCL (OXBDF) United Kingdom $0.462B 0.00
BioDelivery Sciences (BDSI) United States $0.461B 0.00
Sinovac Biotech (SVA) China $0.460B 0.00
Adverum Biotechnologies (ADVM) United States $0.454B 0.00
Cellectis S.A (CLLS) France $0.448B 0.00
Stemline Therapeutics (STML) United States $0.396B 0.00
Bellus Health (BLU) Canada $0.393B 0.00
AMAG Pharmaceuticals (AMAG) United States $0.387B 0.00
Arcus Biosciences (RCUS) United States $0.386B 0.00
Merus (MRUS) Netherlands $0.376B 0.00
Agenus (AGEN) United States $0.368B 0.00
Kadmon Holdings (KDMN) United States $0.364B 0.00
Lexicon Pharmaceuticals (LXRX) United States $0.346B 0.00
Precision BioSciences (DTIL) United States $0.345B 0.00
AC Immune SA (ACIU) Switzerland $0.334B 24.75
CytomX Therapeutics (CTMX) United States $0.323B 0.00
Prothena (PRTA) Ireland $0.320B 0.00
Protagonist Therapeutics (PTGX) United States $0.317B 0.00
Avid Bioservices (CDMO) United States $0.299B 0.00
Gritstone Oncology (GRTS) United States $0.298B 0.00
Syros Pharmaceuticals (SYRS) United States $0.295B 0.00
Kindred Biosciences (KIN) United States $0.292B 0.00
Cel-Sci (CVM) United States $0.289B 0.00
Cellular Biomedicine (CBMG) United States $0.287B 0.00
Pfenex (PFNX) United States $0.281B 0.00
Geron (GERN) United States $0.281B 0.00
Scholar Rock Holding (SRRK) United States $0.280B 0.00
Starpharma Holdings (SPHRY) Australia $0.279B 0.00
PDL BioPharma (PDLI) United States $0.278B 7.15
Dynavax Technologies (DVAX) United States $0.276B 0.00
EYEPOINT PHARMACEUTICALS, INC (EYPT) United States $0.271B 0.00
Biofrontera AG (BFRA) Germany $0.265B 395.33
Theratechnologies (THTX) Canada $0.263B 0.00
ADMA Biologics Inc (ADMA) United States $0.262B 0.00
Puma Biotechnology (PBYI) United States $0.260B 0.00
Seres Therapeutics (MCRB) United States $0.243B 0.00
MannKind (MNKD) United States $0.243B 0.00
Inovio Pharmaceuticals (INO) United States $0.234B 0.00
OSMOTICA PHARM (OSMT) United States $0.232B 0.00
Sutro Biopharma (STRO) United States $0.230B 0.00
Xenon Pharmaceuticals (XENE) Canada $0.230B 0.00
Aeglea BioTherapeutics (AGLE) United States $0.228B 0.00
Albireo Pharma (ALBO) United States $0.227B 0.00
Sorrento Therapeutics (SRNE) United States $0.219B 0.00
Kamada (KMDA) Israel $0.213B 8.14
Spero Therapeutics (SPRO) United States $0.212B 0.00
Athersys (ATHX) United States $0.211B 0.00
Exicure (XCUR) United States $0.205B 0.00
Compugen (CGEN) Israel $0.205B 0.00
POXEL SA FRANCE (PXXLF) France $0.204B 0.00
Clovis Oncology (CLVS) United States $0.200B 0.00
ChromaDex (CDXC) United States $0.198B 0.00
Affimed (AFMD) Germany $0.191B 0.00
Palatin Technologies (PTN) United States $0.190B 5.57
Syndax Pharmaceuticals (SNDX) United States $0.189B 0.00
Prometic Life Sciences (PFSCF) Canada $0.177B 0.00
Dyadic (DYAI) United States $0.177B 0.00
Nicox SA (NICXF) France $0.175B 0.00
Bicycle Therapeutics (BCYC) United Kingdom $0.170B 0.00
Newron Pharmaceuticals SpA (NWPHF) $0.165B 0.00
Senesco Technologies (ELOX) United States $0.164B 0.00
Cue Biopharma (CUE) United States $0.163B 0.00
Pieris Pharmaceuticals (PIRS) United States $0.162B 0.00
XOMA (XOMA) United States $0.161B 0.00
Enzo Biochem (ENZ) United States $0.154B 0.00
Cerecor (CERC) United States $0.153B 0.00
Arsanis (XFOR) United States $0.153B 0.00
Five Prime Therapeutics (FPRX) United States $0.150B 0.00
CorMedix Inc (CRMD) United States $0.148B 0.00
AVEO Pharmaceuticals (AVEO) United States $0.148B 0.00
Alcobra (ARCT) United States $0.146B 0.00
BioTime (LCTX) United States $0.144B 9.60
Northwest Biotherapeutics (NWBO) United States $0.134B 0.00
Acorda Therapeutics (ACOR) United States $0.124B 0.00
SESEN BIO, INC (SESN) United States $0.121B 0.00
NantKwest (NK) United States $0.119B 0.00
Emmaus Life Sciences (EMMA) United States $0.118B 0.00
Nymox Pharmaceutical (NYMX) Canada $0.117B 0.00
PHASEBIO PHARMA (PHAS) United States $0.116B 0.00
Paratek Pharmaceuticals (PRTK) United States $0.113B 0.00
Abeona Therapeutics (ABEO) United States $0.111B 0.00
Novavax (NVAX) United States $0.111B 0.00
Menlo Therapeutics (MNLO) United States $0.110B 0.00
Aptinyx (APTX) United States $0.109B 0.00
Strongbridge Biopharma (SBBP) United States $0.109B 4.47
Adaptimmune Therapeutics (ADAP) United Kingdom $0.105B 0.00
Windtree Therapeutics (WINT) United States $0.103B 0.00
OvaScience (MLND) United States $0.097B 0.00
Celyad SA (CYAD) Belgium $0.097B 0.00
VBI Vaccines (VBIV) United States $0.096B 0.00
Fortress Biotech (FBIO) United States $0.090B 0.00
Trevena (TRVN) United States $0.089B 0.00
Liquidia Technologies (LQDA) United States $0.089B 0.00
Antibe Therapeutics (ATBPF) Canada $0.087B 0.00
Aduro Biotech (ADRO) United States $0.087B 0.00
Adocia (ADOCY) France $0.086B 0.00
Verastem (VSTM) United States $0.084B 0.00
Vaccinex (VCNX) United States $0.083B 0.00
Mersana Therapeutics (MRSN) United States $0.079B 0.00
Idera Pharmaceuticals (IDRA) United States $0.078B 0.00
Checkpoint Therapeutics (CKPT) United States $0.078B 0.00
VTv Therapeutics (VTVT) United States $0.077B 0.00
Aquinox Pharmaceuticals (NLTX) Canada $0.077B 0.00
ANIXA BIOSCIENCES INC (ANIX) United States $0.074B 0.00
ARAVIVE, INC (ARAV) United States $0.073B 0.00
Prima BioMed (IMMP) Australia $0.072B 0.00
Curis (CRIS) United States $0.071B 0.00
Synlogic (SYBX) United States $0.070B 0.00
Catalyst Biosciences (CBIO) United States $0.067B 0.00
Sunesis Pharmaceuticals (SNSS) United States $0.065B 0.00
Selecta Biosciences (SELB) United States $0.063B 0.00
Orgenesis (ORGS) United States $0.060B 21.82
AquaBounty Technologies (AQB) United States $0.057B 0.00
Pluristem Therapeutics (PSTI) Israel $0.057B 0.00
Applied Genetic Technologies (AGTC) United States $0.057B 0.00
Catabasis Pharmaceuticals (CATB) United States $0.056B 0.00
Merrimack Pharmaceuticals (MACK) United States $0.056B 0.00
Aridis Pharmaceuticals (ARDS) United States $0.054B 0.00
Arbutus Biopharma (ABUS) Canada $0.053B 0.00
ASLAN Pharmaceuticals (ASLN) Singapore $0.051B 0.00
Unum Therapeutics (UMRX) United States $0.051B 0.00
VistaGen Therapeutics (VTGN) United States $0.050B 0.00
AIT Therapeutics (XAIR) United States $0.048B 0.00
NewLink Genetics (NLNK) United States $0.047B 0.00
Protalix BioTherapeutics (PLX) Israel $0.047B 0.00
Vascular Biogenics (VBLT) Israel $0.047B 0.00
Spring Bank Pharmaceuticals (SBPH) United States $0.047B 0.00
VIVUS (VVUS) United States $0.044B 0.00
Evogene (EVGN) Israel $0.042B 0.00
AmpliPhi Biosciences (ARMP) United States $0.042B 0.00
Ophthotech (ISEE) United States $0.041B 0.00
Stellar Biotechnologies (EDSA) Canada $0.038B 0.00
INNOVATE BIOPHARMACEUTICALS, INC (INNT) United States $0.037B 0.00
Proteostasis Therapeutics (PTI) United States $0.037B 0.00
Organovo Holdings (ONVO) United States $0.037B 0.00
Oncobiologics (OTLK) United States $0.037B 0.00
Celsion (CLSN) United States $0.036B 0.00
Celldex Therapeutics (CLDX) United States $0.036B 0.00
DiaMedica Therapeutics (DMAC) United States $0.031B 0.00
Clearside Biomedical (CLSD) United States $0.031B 0.00
Aptevo Therapeutics (APVO) United States $0.029B 0.00
Signal Genetics (MGEN) United States $0.029B 0.00
Fibrocell Science Inc (FCSC) United States $0.029B 9.87
BioCardia (BCDA) United States $0.029B 0.00
Entera Bio (ENTX) Israel $0.027B 0.00
Alimera Sciences (ALIM) United States $0.026B 0.00
Caladrius Biosciences (CLBS) United States $0.024B 0.00
Aytu Bioscience (AYTU) United States $0.022B 0.00
Apricus Biosciences (SEEL) United States $0.021B 0.00
Novogen (KZIA) Australia $0.021B 0.00
Aerpio Pharmaceuticals (ARPO) United States $0.020B 0.00
AEterna Zentaris (AEZS) United States $0.020B 0.00
Soligenix (SNGX) United States $0.019B 0.00
CollPlant Holdings (CLGN) Israel $0.017B 0.00
Prana Biotechnology (ATHE) Australia $0.017B 0.00
Bionano Genomics (BNGO) United States $0.015B 0.00
TOCAGEN INC (TOCA) United States $0.014B 0.00
Pulmatrix (PULM) United States $0.014B 0.00
MYOS RENS Technology (MYOS) United States $0.013B 0.00
IBio (IBIO) United States $0.012B 0.00
IMMURON (IMRN) Australia $0.012B 0.00
Cleveland BioLabs (CBLI) United States $0.010B 0.00
TRACON Pharmaceuticals (TCON) United States $0.010B 0.00
Genetic Technologies (GENE) Australia $0.009B 0.00
Benitec Biopharma (BNTC) Australia $0.009B 0.00
TrovaGene (TROV) United States $0.007B 0.00
Cyclacel Pharmaceuticals (CYCC) United States $0.006B 0.00
Advaxis (ADXS) United States $0.006B 0.00
BioPharmX (BPMX) United States $0.005B 0.00
Titan Pharmaceuticals (TTNP) United States $0.003B 0.00
Neuralstem (CUR) United States $0.003B 0.00