Compare Stocks

Comparative Price Performance Over Time

Compare Stocks - Price & Volume

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
argenx SE stock logo
ARGX
argenx
$375.00
0.0%
$386.72
$327.73
$550.76
$22.29B0.65318,670 shs266,420 shs
bluebird bio, Inc. stock logo
BLUE
bluebird bio
$0.92
-5.1%
$1.26
$0.88
$5.53
$100.91M0.748.83 million shs8.16 million shs
BioNTech SE stock logo
BNTX
BioNTech
$88.09
-0.5%
$90.98
$85.21
$125.83
$20.94B0.23671,110 shs280,562 shs
Moderna, Inc. stock logo
MRNA
Moderna
$108.85
+0.9%
$101.85
$62.55
$142.79
$41.31B1.623.06 million shs3.41 million shs
Repligen Co. stock logo
RGEN
Repligen
$167.86
-2.0%
$185.86
$110.45
$211.13
$9.56B1.02461,209 shs545,955 shs
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Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
argenx SE stock logo
ARGX
argenx
-0.02%+2.40%-5.88%-1.97%-3.97%
bluebird bio, Inc. stock logo
BLUE
bluebird bio
-4.91%-4.19%-32.14%-17.60%-74.85%
BioNTech SE stock logo
BNTX
BioNTech
-0.45%+1.96%-5.28%-9.09%-22.90%
Moderna, Inc. stock logo
MRNA
Moderna
+0.89%+5.23%-1.39%+5.87%-19.31%
Repligen Co. stock logo
RGEN
Repligen
-2.00%+4.27%-9.21%-9.51%+12.24%

MarketRank™

CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
argenx SE stock logo
ARGX
argenx
3.8123 of 5 stars
4.45.00.00.03.31.70.6
bluebird bio, Inc. stock logo
BLUE
bluebird bio
2.793 of 5 stars
3.24.00.00.01.72.51.3
BioNTech SE stock logo
BNTX
BioNTech
3.4458 of 5 stars
4.22.00.00.02.30.82.5
Moderna, Inc. stock logo
MRNA
Moderna
3.9621 of 5 stars
3.12.00.04.61.83.30.6
Repligen Co. stock logo
RGEN
Repligen
4.1607 of 5 stars
2.41.00.04.53.22.52.5

Analyst Ratings

CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
argenx SE stock logo
ARGX
argenx
2.71
Moderate Buy$528.1640.84% Upside
bluebird bio, Inc. stock logo
BLUE
bluebird bio
2.33
Hold$5.87536.04% Upside
BioNTech SE stock logo
BNTX
BioNTech
2.30
Hold$120.4036.68% Upside
Moderna, Inc. stock logo
MRNA
Moderna
2.24
Hold$126.4916.20% Upside
Repligen Co. stock logo
RGEN
Repligen
2.89
Moderate Buy$196.7017.18% Upside

Current Analyst Ratings

Latest ARGX, MRNA, BLUE, BNTX, and RGEN Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
4/18/2024
argenx SE stock logo
ARGX
argenx
Wedbush
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Reiterated RatingOutperform ➝ Outperform$521.00
4/18/2024
argenx SE stock logo
ARGX
argenx
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$451.00
4/17/2024
BioNTech SE stock logo
BNTX
BioNTech
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$107.00
4/11/2024
Moderna, Inc. stock logo
MRNA
Moderna
Needham & Company LLC
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Reiterated RatingHold
4/9/2024
Moderna, Inc. stock logo
MRNA
Moderna
Jefferies Financial Group
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$125.00
4/1/2024
Moderna, Inc. stock logo
MRNA
Moderna
William Blair
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingMarket Perform
3/28/2024
Moderna, Inc. stock logo
MRNA
Moderna
Royal Bank of Canada
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Reiterated RatingOutperform ➝ Outperform$125.00
3/28/2024
Moderna, Inc. stock logo
MRNA
Moderna
Needham & Company LLC
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingHold
3/27/2024
argenx SE stock logo
ARGX
argenx
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$451.00
3/27/2024
bluebird bio, Inc. stock logo
BLUE
bluebird bio
Royal Bank of Canada
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Reiterated RatingSector Perform ➝ Sector Perform$6.00
3/27/2024
bluebird bio, Inc. stock logo
BLUE
bluebird bio
Wells Fargo & Company
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Lower Price TargetEqual Weight ➝ Equal Weight$4.00 ➝ $3.00
(Data available from 4/25/2021 forward. View 10+ years of historical ratings with our analyst ratings screener.)

Sales & Book Value

CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
argenx SE stock logo
ARGX
argenx
$1.23B18.17N/AN/A$69.22 per share5.42
bluebird bio, Inc. stock logo
BLUE
bluebird bio
$21.73M4.64N/AN/A$2.37 per share0.39
BioNTech SE stock logo
BNTX
BioNTech
$4.13B5.07$5.07 per share17.36$92.17 per share0.96
Moderna, Inc. stock logo
MRNA
Moderna
$6.85B6.09N/AN/A$36.33 per share3.00
Repligen Co. stock logo
RGEN
Repligen
$638.76M14.67$2.97 per share56.61$35.31 per share4.75

Profitability & Earnings

CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
argenx SE stock logo
ARGX
argenx
-$295.05M-$5.14N/A116.82N/A-23.26%-16.97%-15.26%5/2/2024 (Estimated)
bluebird bio, Inc. stock logo
BLUE
bluebird bio
-$266.58M-$0.74N/AN/AN/A-419.64%-34.32%-14.44%5/14/2024 (Estimated)
BioNTech SE stock logo
BNTX
BioNTech
$1.01B$4.1221.38N/AN/A24.26%4.60%4.12%5/6/2024 (Confirmed)
Moderna, Inc. stock logo
MRNA
Moderna
-$4.71B-$12.41N/AN/AN/A-68.84%-10.23%-7.70%5/2/2024 (Confirmed)
Repligen Co. stock logo
RGEN
Repligen
$41.58M$0.72233.1480.325.616.51%5.00%3.78%5/1/2024 (Confirmed)

Latest ARGX, MRNA, BLUE, BNTX, and RGEN Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/6/2024N/A
BioNTech SE stock logo
BNTX
BioNTech
-$0.4460N/A+$0.4460N/AN/AN/A  
5/2/2024N/A
Moderna, Inc. stock logo
MRNA
Moderna
-$3.36N/A+$3.36N/AN/AN/A  
5/1/2024N/A
Repligen Co. stock logo
RGEN
Repligen
$0.29N/A-$0.29N/AN/AN/A  
3/20/2024Q4 2023
BioNTech SE stock logo
BNTX
BioNTech
$2.64$2.05-$0.59$2.05$2.04 billion$1.59 billion
2/29/202412/31/2023
argenx SE stock logo
ARGX
argenx
-$1.23-$1.68-$0.45-$1.68$378.60 million$417.84 million    
2/22/2024Q4 2023
Moderna, Inc. stock logo
MRNA
Moderna
-$0.78$0.55+$1.33$0.55$2.53 billion$2.80 billion    
2/21/2024Q4 2023
Repligen Co. stock logo
RGEN
Repligen
$0.33$0.33N/A$1.12$155.38 million$155.74 million    

Dividends

CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
argenx SE stock logo
ARGX
argenx
N/AN/AN/AN/AN/A
bluebird bio, Inc. stock logo
BLUE
bluebird bio
N/AN/AN/AN/AN/A
BioNTech SE stock logo
BNTX
BioNTech
N/AN/AN/AN/AN/A
Moderna, Inc. stock logo
MRNA
Moderna
N/AN/AN/AN/AN/A
Repligen Co. stock logo
RGEN
Repligen
N/AN/AN/AN/AN/A

Debt

CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
argenx SE stock logo
ARGX
argenx
N/A
9.75
9.01
bluebird bio, Inc. stock logo
BLUE
bluebird bio
N/A
1.55
1.42
BioNTech SE stock logo
BNTX
BioNTech
0.01
9.43
9.26
Moderna, Inc. stock logo
MRNA
Moderna
0.04
3.42
3.36
Repligen Co. stock logo
RGEN
Repligen
0.26
7.02
5.75

Ownership

Institutional Ownership

CompanyInstitutional Ownership
argenx SE stock logo
ARGX
argenx
60.32%
bluebird bio, Inc. stock logo
BLUE
bluebird bio
87.43%
BioNTech SE stock logo
BNTX
BioNTech
15.52%
Moderna, Inc. stock logo
MRNA
Moderna
75.33%
Repligen Co. stock logo
RGEN
Repligen
97.64%

Insider Ownership

CompanyInsider Ownership
argenx SE stock logo
ARGX
argenx
2.43%
bluebird bio, Inc. stock logo
BLUE
bluebird bio
2.10%
BioNTech SE stock logo
BNTX
BioNTech
19.20%
Moderna, Inc. stock logo
MRNA
Moderna
15.70%
Repligen Co. stock logo
RGEN
Repligen
1.20%

Miscellaneous

CompanyEmployeesShares OutstandingFree FloatOptionable
argenx SE stock logo
ARGX
argenx
1,14859.43 million57.99 millionOptionable
bluebird bio, Inc. stock logo
BLUE
bluebird bio
323109.34 million107.04 millionOptionable
BioNTech SE stock logo
BNTX
BioNTech
6,133237.73 million192.08 millionOptionable
Moderna, Inc. stock logo
MRNA
Moderna
5,600382.88 million322.77 millionOptionable
Repligen Co. stock logo
RGEN
Repligen
1,78355.84 million55.17 millionOptionable

ARGX, MRNA, BLUE, BNTX, and RGEN Headlines

SourceHeadline
Repligen (NASDAQ:RGEN) Shares Gap Up to $157.48Repligen (NASDAQ:RGEN) Shares Gap Up to $157.48
americanbankingnews.com - April 25 at 5:44 AM
Repligen Co. (NASDAQ:RGEN) Stake Cut by New York State Common Retirement FundRepligen Co. (NASDAQ:RGEN) Stake Cut by New York State Common Retirement Fund
marketbeat.com - April 24 at 8:43 AM
Repligen (RGEN) to Release Earnings on WednesdayRepligen (RGEN) to Release Earnings on Wednesday
americanbankingnews.com - April 24 at 5:52 AM
Should be Confident in Repligen Corporation (RGEN)’s Long-Term Growth Potential?Should be Confident in Repligen Corporation (RGEN)’s Long-Term Growth Potential?
finance.yahoo.com - April 23 at 2:54 PM
Repligen (NASDAQ:RGEN) Shares Gap Down to $160.98Repligen (NASDAQ:RGEN) Shares Gap Down to $160.98
americanbankingnews.com - April 20 at 5:54 AM
Positive Report for Repligen (RGEN) from Craig-HallumPositive Report for Repligen (RGEN) from Craig-Hallum
markets.businessinsider.com - April 19 at 3:20 PM
Federated Hermes Inc. Cuts Stake in Repligen Co. (NASDAQ:RGEN)Federated Hermes Inc. Cuts Stake in Repligen Co. (NASDAQ:RGEN)
marketbeat.com - April 19 at 8:44 AM
Repligen Corporation Common Stock (RGEN)Repligen Corporation Common Stock (RGEN)
nasdaq.com - April 18 at 8:20 PM
Repligen to Report First Quarter 2024 Financial ResultsRepligen to Report First Quarter 2024 Financial Results
finance.yahoo.com - April 17 at 8:46 AM
Notable Two Hundred Day Moving Average Cross - RGENNotable Two Hundred Day Moving Average Cross - RGEN
nasdaq.com - April 17 at 1:20 AM
14,600 Shares in Repligen Co. (NASDAQ:RGEN) Purchased by Louisiana State Employees Retirement System14,600 Shares in Repligen Co. (NASDAQ:RGEN) Purchased by Louisiana State Employees Retirement System
marketbeat.com - April 16 at 6:51 AM
Cardiff Oncology (NASDAQ:CRDF) and Repligen (NASDAQ:RGEN) Critical ContrastCardiff Oncology (NASDAQ:CRDF) and Repligen (NASDAQ:RGEN) Critical Contrast
americanbankingnews.com - April 16 at 2:40 AM
London & Capital Asset Management Ltd Acquires 6,215 Shares of Repligen Co. (NASDAQ:RGEN)London & Capital Asset Management Ltd Acquires 6,215 Shares of Repligen Co. (NASDAQ:RGEN)
marketbeat.com - April 15 at 11:28 AM
Critical Review: Repligen (NASDAQ:RGEN) vs. Neurocrine Biosciences (NASDAQ:NBIX)Critical Review: Repligen (NASDAQ:RGEN) vs. Neurocrine Biosciences (NASDAQ:NBIX)
americanbankingnews.com - April 15 at 2:32 AM
International Assets Investment Management LLC Grows Position in Repligen Co. (NASDAQ:RGEN)International Assets Investment Management LLC Grows Position in Repligen Co. (NASDAQ:RGEN)
marketbeat.com - April 13 at 5:30 AM
Artisan Mid Cap Fund Trimmed Repligen Corporation (RGEN) after Share AppreciationArtisan Mid Cap Fund Trimmed Repligen Corporation (RGEN) after Share Appreciation
finance.yahoo.com - April 12 at 10:56 AM
Repligen Co. (NASDAQ:RGEN) Shares Bought by Allspring Global Investments Holdings LLCRepligen Co. (NASDAQ:RGEN) Shares Bought by Allspring Global Investments Holdings LLC
marketbeat.com - April 12 at 6:17 AM
Repligen Co. (NASDAQ:RGEN) Receives Average Recommendation of "Moderate Buy" from BrokeragesRepligen Co. (NASDAQ:RGEN) Receives Average Recommendation of "Moderate Buy" from Brokerages
marketbeat.com - April 12 at 2:17 AM
Repligen Co. (NASDAQ:RGEN) Shares Sold by Impax Asset Management Group plcRepligen Co. (NASDAQ:RGEN) Shares Sold by Impax Asset Management Group plc
marketbeat.com - April 9 at 6:39 PM
RBC Capital Remains a Buy on Repligen (RGEN)RBC Capital Remains a Buy on Repligen (RGEN)
markets.businessinsider.com - April 9 at 3:43 AM
Raymond James & Associates Sells 20,495 Shares of Repligen Co. (NASDAQ:RGEN)Raymond James & Associates Sells 20,495 Shares of Repligen Co. (NASDAQ:RGEN)
marketbeat.com - April 7 at 4:19 AM
Repligen Co. (NASDAQ:RGEN) Shares Sold by Riverbridge Partners LLCRepligen Co. (NASDAQ:RGEN) Shares Sold by Riverbridge Partners LLC
marketbeat.com - April 5 at 12:49 AM
SG Americas Securities LLC Has $1.27 Million Stock Holdings in Repligen Co. (NASDAQ:RGEN)SG Americas Securities LLC Has $1.27 Million Stock Holdings in Repligen Co. (NASDAQ:RGEN)
marketbeat.com - March 30 at 4:25 AM
Artemis Investment Management LLP Makes New Investment in Repligen Co. (NASDAQ:RGEN)Artemis Investment Management LLP Makes New Investment in Repligen Co. (NASDAQ:RGEN)
marketbeat.com - March 26 at 11:09 AM

New MarketBeat Followers Over Time

Media Sentiment Over Time

Top Headlines

All Headlines

Company Descriptions

argenx logo

argenx

NASDAQ:ARGX
argenx SE, a biotechnology company, engages in the developing of various therapies for the treatment of autoimmune diseases in the United States, Japan, Europe, Middle East, Africa, and China. Its lead product candidate is efgartigimod for the treatment of patients with myasthenia gravis, immune thrombocytopenia, pemphigus vulgaris, generalized myasthenia gravis, chronic inflammatory demyelinating polyneuropathy, thyroid eye disease, bullous pemphigoid, myositis, primary sjögren's syndrome, post-covid postural orthostatic tachycardia syndrome, membranous nephropathy, lupus nephropathy, anca-associated vasculitis, and antibody mediated rejection; ENHANZE SC; Empasiprubart for multifocal motor neuropath, delayed graft function, and dermatomyositis; and ARGX-119 for congenital myasthenic syndrome and amyotrophic lateral sclerosis. The company is developing ARGX-213 targets FcRn; ARGX-121 and ARGX-220 targets immune system; ARGX-109 targets IL-6; ARGX-118 for inflammation; and ARGX-109, as well as cusatuzumab, ARGX-112, ARGX-114, and ARGX-115. It owns VYVGART; VYVGART HYTRULO; VYVDURA; ARGENX; ABDEG; NHANCE; SIMPLE ANTIBODY; and ARGENXMEDHUB. The company has strategic partnership with AbbVie S.À.R.L., Zai Lab Limited, and LEO Pharma A/S; and collaboration and license agreement with Genor Biopharma Co. Ltd, Université Catholique de Louvain, Sopartec S.A., NYU Langone Health, Leiden University Medical Center, AgomAb Therapeutics NV, Broteio Pharma B.V., VIB vzw, University of Texas, BioWa, Inc., and Shire International GmbH. It has collaboration agreement with Genmab A/S to discover, develop, and commercialize novel therapeutic antibodies with applications in immunology and oncology, as well as a strategic collaboration with IQVIA Holdings Inc. to provide safety systems and services. argenx SE was incorporated in 2008 and is based in Amsterdam, the Netherlands.
bluebird bio logo

bluebird bio

NASDAQ:BLUE
bluebird bio, Inc., a biotechnology company, researches, develops, and commercializes gene therapies for severe genetic diseases. Its product candidates for severe genetic diseases include ZYNTEGLO (betibeglogene autotemcel) for the treatment of transfusion-dependent ß-thalassemia; lovotibeglogene autotemcel for the treatment of sickle cell disease (SCD); and SKYSONA (elivaldogene autotemcel) to treat cerebral adrenoleukodystrophy. The company's clinical development programs include HGB-205, HGB-206, and HGB-210 to evaluate the safety and efficacy of lovo-cel in the treatment of patients with SCD; and HGB-204, HGB-205, HGB-207, and HGB-212 to evaluate the safety and efficacy of beti-cel in the treatment of patients with ß-thalassemia. It has license agreement with Orchard Therapeutics Limited. The company was formerly known as Genetix Pharmaceuticals, Inc., and changed its name to bluebird bio, Inc. in September 2010. bluebird bio, Inc. was incorporated in 1992 and is headquartered in Somerville, Massachusetts.
BioNTech logo

BioNTech

NASDAQ:BNTX
BioNTech SE, a biotechnology company, develops and commercializes immunotherapies for cancer and other infectious diseases. The company is developing FixVac product candidates, including BNT111, which is in Phase II clinical trial for advance melanoma; BNT112 that is in Phase I/IIa clinical trial for prostate cancer; BNT113, which is in Phase II clinical trial to treat HPV 16+ head and neck cancers; BNT114 to treat triple negative breast cancer; BNT115, which is in Phase I clinical trial in ovarian cancer; and BNT116, which is in Phase I clinical trial for non-small cell lung cancer. It develops BNT122, which is in Phase II clinical trial for first-line melanoma and in Phase I clinical trial to treat multiple solid tumors; BNT131 that is in Phase I clinical trial for multiple solid tumors; BNT141 and BNT142 that are in Phase I clinical trial to treat multiple solid tumors; BNT151, BNT152, and BNT153 to treat solid tumors; BNT211 to treat multiple solid tumors, and BNT221 for pancreatic and other cancers; BNT311 which are in Phase II clinical trial to treat metastatic non-small cell lung cancer and Phase I/II clinical trial to treat multiple solid tumors; and BNT312, which is in Phase 2 clinical trial to treat multiple solid tumors, as well as ONC-392, which is in Phase III clinical trial to treat ovarian cancer and Phase I/II clinical trial to treat multiple solid tumors. It develops BNT321, an IgG1 monoclonal antibody in Phase I clinical trial for pancreatic cancer; BNT411, a small molecule immunomodulator product candidate in Phase I clinical trial for solid tumors; BNT322, which is in Phase I/Ib clinical trial for multiple solid tumors; and prophylactic vaccine for shingles, malaria, tuberculosis, HSV-2, and other infectious diseases. It has collaborations with Genentech, Inc.; Sanofi S.A.; Genmab A/S; Pfizer Inc.; Shanghai Fosun Pharmaceutical (Group) Co., Ltd; and Ryvu Therapeutics S.A. BioNTech SE was incorporated in 2008 and is based in Mainz, Germany.
Moderna logo

Moderna

NASDAQ:MRNA
Moderna, Inc., a biotechnology company, discovers, develops, and commercializes messenger RNA therapeutics and vaccines for the treatment of infectious diseases, immuno-oncology, rare diseases, autoimmune, and cardiovascular diseases in the United States, Europe, and internationally. Its respiratory vaccines include COVID-19, influenza, and respiratory syncytial virus, spikevax, and hMPV/PIV3 vaccines; latent vaccines comprise cytomegalovirus, epstein-barr virus, herpes simplex virus, varicella zoster virus, and human immunodeficiency virus vaccines; public health vaccines consists of Zika, Nipah, Mpox vaccines; and infectious diseases vaccines, such as lyme and norovirus vaccines. The company also offers systemic secreted and cell surface therapeutics; cancer vaccines, such as personalized cancer, KRAS, and checkpoint vaccines; intratumoral immuno-oncology products; rare disease intracellular therapeutics; and inhaled pulmonary therapeutics. It has strategic alliances and collaborations with AstraZeneca; Merck & Co., Inc; Vertex Pharmaceuticals Incorporated; Vertex Pharmaceuticals (Europe) Limited; Chiesi Farmaceutici S.p.A.; Metagenomi, Inc.; Carisma Therapeutics, Inc.; CytomX Therapeutics; Defense Advanced Research Projects Agency; Biomedical Advanced Research and Development Authority; Institute for Life Changing Medicines; and The Bill & Melinda Gates Foundation. The company was formerly known as Moderna Therapeutics, Inc. and changed its name to Moderna, Inc. in August 2018. Moderna, Inc. was founded in 2010 and is headquartered in Cambridge, Massachusetts.
Repligen logo

Repligen

NASDAQ:RGEN
Repligen Corporation develops and commercializes bioprocessing technologies and systems for use in biological drug manufacturing process in North America, Europe, the Asia Pacific, and internationally. It offers Protein A ligands that are the binding components of Protein A affinity chromatography resins; and cell culture growth factor products. The company's chromatography products include OPUS pre-packed chromatography columns, which are used in the purification of biologics; and OPUS smaller-scale columns that are used in the high throughput process development screening, viral clearance validation studies, and scale down validation of chromatography processes. It also offers ELISA test kits; and chromatography resins under the CaptivA brand. In addition, the company provides filtration products, such as XCell Alternating Tangential Flow systems that are filtration devices used in upstream perfusion and cell culture processing; TangenX flat sheet cassettes, which are used in downstream biologic drug concentration, buffer exchange, and formulation processes; KrosFlo tangential flow filtration and tangential flow depth filtration systems; Spectra/Por laboratory and process dialysis products, and ProConnex TFDF flow paths. Further, it provides process analytics products, such as slope spectroscopy systems under the SoloVPE, FlowVPE, and FlowVPX brands. The company sells its products to life sciences, biopharmaceutical, and diagnostics companies; laboratory researchers; and contract manufacturing organizations. Repligen Corporation has collaboration agreements with Navigo Proteins GmbH to develop multiple affinity ligands. The company was incorporated in 1981 and is headquartered in Waltham, Massachusetts.