Compare Stocks

Comparative Price Performance Over Time

Compare Stocks - Price & Volume

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
$2.58
+2.8%
$3.33
$2.28
$9.08
$374.33M1.251.62 million shs1.52 million shs
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
$3.37
-0.9%
$4.44
$2.23
$6.89
$569.83M0.812.55 million shs1.61 million shs
argenx SE stock logo
ARGX
argenx
$375.08
+1.7%
$386.95
$327.73
$550.76
$22.29B0.65320,163 shs340,242 shs
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
$119.99
+1.7%
$119.23
$99.74
$120.05
$4.72B0.47148,695 shs24,016 shs
Repligen Co. stock logo
RGEN
Repligen
$171.28
+8.8%
$186.62
$110.45
$211.13
$9.56B1.02538,659 shs928,604 shs
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Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
+4.58%-13.75%-22.53%-42.56%-70.78%
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
-2.02%-4.23%-20.19%+5.92%-37.15%
argenx SE stock logo
ARGX
argenx
+2.37%-2.00%-8.43%-0.31%-5.30%
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
0.00%0.00%0.00%0.00%0.00%
Repligen Co. stock logo
RGEN
Repligen
+0.22%-5.35%-20.48%-15.81%-5.18%

MarketRank™

CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
3.7423 of 5 stars
3.31.00.04.22.32.50.6
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
2.0141 of 5 stars
3.40.00.00.02.95.00.0
argenx SE stock logo
ARGX
argenx
3.8149 of 5 stars
4.45.00.00.03.21.70.6
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
N/AN/AN/AN/AN/AN/AN/AN/A
Repligen Co. stock logo
RGEN
Repligen
3.8033 of 5 stars
2.41.00.04.52.52.51.9

Analyst Ratings

CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
2.67
Moderate Buy$6.80163.57% Upside
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
2.71
Moderate Buy$12.94283.90% Upside
argenx SE stock logo
ARGX
argenx
2.71
Moderate Buy$528.1640.81% Upside
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
N/AN/AN/AN/A
Repligen Co. stock logo
RGEN
Repligen
2.89
Moderate Buy$196.7014.84% Upside

Current Analyst Ratings

Latest CBPO, RGEN, ARGX, ADPT, and ALLO Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
4/18/2024
argenx SE stock logo
ARGX
argenx
Wedbush
Subscribe to MarketBeat All Access for the recommendation accuracy rating
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
4/4/2024
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
BTIG Research
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Lower Price TargetBuy ➝ Buy$6.00 ➝ $5.00
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
3/26/2024
argenx SE stock logo
ARGX
argenx
Scotiabank
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetSector Perform ➝ Sector Perform$402.00 ➝ $408.00
3/22/2024
argenx SE stock logo
ARGX
argenx
JMP Securities
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingMarket Outperform ➝ Market Outperform$471.00
3/19/2024
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
HC Wainwright
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Reiterated RatingBuy ➝ Buy$10.00
3/15/2024
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
Royal Bank of Canada
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Reiterated RatingOutperform ➝ Outperform$10.00
3/5/2024
argenx SE stock logo
ARGX
argenx
Truist Financial
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Boost Price TargetBuy ➝ Buy$370.00 ➝ $440.00
3/1/2024
argenx SE stock logo
ARGX
argenx
Scotiabank
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetSector Perform ➝ Sector Perform$346.00 ➝ $402.00
3/1/2024
argenx SE stock logo
ARGX
argenx
JMP Securities
Subscribe to MarketBeat All Access for the recommendation accuracy rating
Boost Price TargetMarket Outperform ➝ Market Outperform$462.00 ➝ $471.00
(Data available from 4/23/2021 forward. View 10+ years of historical ratings with our analyst ratings screener.)

Sales & Book Value

CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
$170.28M2.20N/AN/A$2.13 per share1.21
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
$90K6,331.48N/AN/A$3.04 per share1.11
argenx SE stock logo
ARGX
argenx
$1.27B17.57N/AN/A$69.22 per share5.42
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
$503.70M9.38$5.01 per share23.93$45.09 per share2.66
Repligen Co. stock logo
RGEN
Repligen
$638.76M14.97$3.30 per share51.93$35.31 per share4.85

Profitability & Earnings

CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
-$225.25M-$1.56N/AN/AN/A-132.29%-53.65%-27.24%5/7/2024 (Confirmed)
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
-$327.27M-$2.09N/AN/AN/A-202,366.25%-53.76%-43.24%5/1/2024 (Estimated)
argenx SE stock logo
ARGX
argenx
-$295.05M-$5.14N/A116.85N/A-23.26%-16.97%-15.26%5/2/2024 (Estimated)
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
$138.81M$4.2833.5227.90N/A27.43%8.32%7.64%N/A
Repligen Co. stock logo
RGEN
Repligen
$41.58M$0.72237.8981.955.156.51%5.00%3.78%5/1/2024 (Confirmed)

Latest CBPO, RGEN, ARGX, ADPT, and ALLO Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/7/2024N/A
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
-$0.35N/A+$0.35N/AN/AN/A  
5/1/2024N/A
Repligen Co. stock logo
RGEN
Repligen
$0.29N/A-$0.29N/AN/AN/A  
3/14/2024Q4 2023
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
-$0.47-$0.43+$0.04-$0.35$0.05 million$0.02 million
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    
2/21/2024Q4 2023
Repligen Co. stock logo
RGEN
Repligen
$0.33$0.33N/A$1.12$155.38 million$155.74 million    
2/14/2024Q4 2023
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
-$0.32-$0.30+$0.02-$0.12$50.15 million$45.78 million

Dividends

CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
N/AN/AN/AN/AN/A
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
N/AN/AN/AN/AN/A
argenx SE stock logo
ARGX
argenx
N/AN/AN/AN/AN/A
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
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
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
N/A
4.66
4.50
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
N/A
12.38
12.38
argenx SE stock logo
ARGX
argenx
N/A
9.75
9.01
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
N/A
12.01
10.13
Repligen Co. stock logo
RGEN
Repligen
0.26
7.02
5.75

Ownership

Institutional Ownership

CompanyInstitutional Ownership
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
99.17%
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
83.63%
argenx SE stock logo
ARGX
argenx
60.32%
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
34.77%
Repligen Co. stock logo
RGEN
Repligen
97.64%

Miscellaneous

CompanyEmployeesShares OutstandingFree FloatOptionable
Adaptive Biotechnologies Co. stock logo
ADPT
Adaptive Biotechnologies
709145.09 million137.55 millionOptionable
Allogene Therapeutics, Inc. stock logo
ALLO
Allogene Therapeutics
232169.09 million122.76 millionOptionable
argenx SE stock logo
ARGX
argenx
1,14859.43 million57.99 millionOptionable
China Biologic Products Holdings, Inc. stock logo
CBPO
China Biologic Products
2,26939.36 millionN/AOptionable
Repligen Co. stock logo
RGEN
Repligen
1,78355.84 million55.17 millionOptionable

CBPO, RGEN, ARGX, ADPT, and ALLO Headlines

SourceHeadline
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 Up to $157.48Repligen (NASDAQ:RGEN) Shares Gap Up to $157.48
marketbeat.com - April 23 at 12:10 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
Repligen (NASDAQ:RGEN) Trading Down 2.3%Repligen (NASDAQ:RGEN) Trading Down 2.3%
marketbeat.com - March 25 at 3:20 PM
Repligen Appoints Maggie A. Pax to Board of DirectorsRepligen Appoints Maggie A. Pax to Board of Directors
globenewswire.com - March 19 at 7:30 AM

New MarketBeat Followers Over Time

Media Sentiment Over Time

Top Headlines

All Headlines

Company Descriptions

Adaptive Biotechnologies logo

Adaptive Biotechnologies

NASDAQ:ADPT
Adaptive Biotechnologies Corporation, a commercial-stage company, develops an immune medicine platform for the diagnosis and treatment of various diseases. The company offers immunosequencing platform which combines a suite of proprietary chemistry, computational biology, and machine learning to generate clinical immunomics data to decode the adaptive immune system. It also provides clonoSEQ diagnostic test which detects and monitors the remaining number of cancer cells that are present in a patient's body during and after treatment, known as Minimal Residual Disease (MRD). The company offers products and services for life sciences research, clinical diagnostics, and drug discovery applications. Adaptive Biotechnologies Corporation has strategic collaborations with Genentech, Inc. for the development, manufacture, and commercialization of neoantigen directed T cell therapies for the treatment of a range of cancers; and Microsoft Corporation to develop diagnostic tests for the early detection of various diseases from a single blood test. The company was formerly known as Adaptive TCR Corporation and changed its name to Adaptive Biotechnologies Corporation in December 2011. Adaptive Biotechnologies Corporation was incorporated in 2009 and is headquartered in Seattle, Washington.
Allogene Therapeutics logo

Allogene Therapeutics

NASDAQ:ALLO
Allogene Therapeutics, Inc., a clinical stage immuno-oncology company, develops and commercializes genetically engineered allogeneic T cell therapies for the treatment of cancer. It develops, manufactures, and commercializes UCART19, an allogeneic chimeric antigen receptor (CAR) T cell product candidate for the treatment of pediatric and adult patients with R/R CD19 positive B-cell acute lymphoblastic leukemia (ALL). The company also develops cemacabtagene ansegedleucel, an engineered allogeneic CAR T cell product candidate that targets CD19 for the treatment of large B-cell lymphoma; and is in Phase 1b clinical trial for the treatment of chronic lymphocytic leukemia. In addition, it is developing ALLO-715, an allogeneic CAR T cell product candidate that is in a Phase 1 clinical trial for treating R/R multiple myeloma; ALLO-605, an allogeneic CAR T cell product candidate that is in a Phase I clinical trial for the treatment of multiple myeloma; ALLO-647, an anti-CD52 monoclonal antibody; CD70 to treat renal cell cancer; ALLO-316, an allogeneic CAR T cell product candidate that is in Phase 1 clinical trial for the treatment of advanced or metastatic RCC; ALLO-329 for the treatment of certain autoimmune diseases; DLL3 for the treatment of small cell lung cancer and other aggressive neuroendocrine tumors; and Claudin 18.2 for the treatment of gastric and pancreatic cancer. The company has license and collaboration agreements with Pfizer Inc.; Servier; Cellectis S.A.; and Notch Therapeutics Inc. It also has a strategic collaboration agreement with The University of Texas MD Anderson Cancer Center for the preclinical and clinical investigation of allogeneic CAR T cell product candidates; and a strategic partnership with Foresight Diagnostics to develop MRD-based In-Vitro Diagnostic for use in ALPHA3. The company was incorporated in 2017 and is headquartered in South San Francisco, California.
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.
China Biologic Products logo

China Biologic Products

NASDAQ:CBPO
China Biologic Products Holdings, Inc. engages in the research, development, manufacture, and sale of human plasma-based biopharmaceutical products to hospitals and inoculation centers in the People's Republic of China. It offers human albumin for treating shock caused by blood loss trauma or burn; raised intracranial pressure caused by hydrocephalus or trauma; oedema or ascites caused by hepatocirrhosis and nephropathy; and neonatal hyperbilirubinemia, as well as for the prevention and treatment of low-density-lipoproteinemia. The company also provides human immunoglobulin and IVIG for original and secondary immunoglobulin deficiency, auto-immune deficiency, and immunoglobulin G secondary deficiency; human hepatitis B immunoglobulin for the prevention of measles and contagious hepatitis; human rabies immunoglobulin primarily for passive immunity from bites or claws by rabies or other infected animals; and human tetanus immunoglobulin for the prevention and therapy of tetanus. In addition, it offers placenta polypeptide for the treatment of cell immunity deficiency diseases, viral infection, and leucopenia, as well as assists in postoperative healing; factor VIII for treating coagulopathies; human fibrinogen; and human prothrombin complex concentrate for treating congenital and acquired clotting factor II, VII, IX, X deficiency, as well as excessive anticoagulant, vitamin K deficiency, etc. Further, the company is developing Human fibrinogen for the treatment for lack of fibrinogen and increase human fibrinogen concentration; and artificial dura and spinal dura mater products for use in brain and spinal surgeries. The company sells its products directly, as well as through distributors. The company was formerly known as China Biologic Products, Inc. and changed its name to China Biologic Products Holdings, Inc. in July 2017. China Biologic Products Holdings, Inc. is headquartered in Beijing, the People's Republic of China.
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.