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CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
$3.92
+0.8%
$3.95
$3.56
$9.18
$28.71M0.6240,115 shs53,832 shs
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
$2.05
+1.0%
$2.03
$0.51
$3.22
$115.36M1.47289,617 shs379,982 shs
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
$2.11
-3.2%
$1.80
$1.02
$6.22
$119.74M0.99435,789 shs611,119 shs
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
$6.41
-0.2%
$5.11
$0.13
$1.04
$123.44M1.581.05 million shs123,846 shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
0.00%+7.40%+2.62%-14.04%-52.77%
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
0.00%+8.47%-4.21%-29.55%+56.49%
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
0.00%+14.05%+11.64%+39.74%-59.73%
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
-0.16%+16.12%+30.15%+33.54%+3,928.91%
CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
$3.92
+0.8%
$3.95
$3.56
$9.18
$28.71M0.6240,115 shs53,832 shs
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
$2.05
+1.0%
$2.03
$0.51
$3.22
$115.36M1.47289,617 shs379,982 shs
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
$2.11
-3.2%
$1.80
$1.02
$6.22
$119.74M0.99435,789 shs611,119 shs
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
$6.41
-0.2%
$5.11
$0.13
$1.04
$123.44M1.581.05 million shs123,846 shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
0.00%+7.40%+2.62%-14.04%-52.77%
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
0.00%+8.47%-4.21%-29.55%+56.49%
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
0.00%+14.05%+11.64%+39.74%-59.73%
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
-0.16%+16.12%+30.15%+33.54%+3,928.91%
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
2.00
Hold$9.00129.59% Upside
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
2.20
Hold$5.00143.90% Upside
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
2.67
Moderate Buy$7.80269.67% Upside
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
2.00
Hold$5.00-22.00% Downside

Current Analyst Ratings Breakdown

Latest KZR, SPRO, VIRI, and TCRX Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
9/27/2025
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
Weiss Ratings
Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating
Reiterated RatingSell (E+)
9/27/2025
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
Weiss Ratings
Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating
Reiterated RatingSell (D-)
9/27/2025
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
Weiss Ratings
Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating
Reiterated RatingSell (D-)
8/12/2025
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
Wedbush
Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating
Reiterated RatingOutperform$7.00
7/16/2025
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
HC Wainwright
Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating
Reiterated RatingNeutral
(Data available from 10/5/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
$7M4.10N/AN/A$16.02 per share0.24
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
$47.98M2.40N/AN/A$0.85 per share2.41
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
$2.82M42.46N/AN/A$4.26 per share0.50
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
N/AN/AN/AN/A$0.20 per shareN/A
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
-$83.74M-$9.69N/AN/AN/AN/A-63.51%-52.13%11/11/2025 (Estimated)
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
-$68.57M-$0.98N/AN/AN/A-110.35%-120.27%-55.61%11/13/2025 (Estimated)
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
-$127.50M-$1.09N/AN/AN/A-1,964.88%-63.33%-40.19%11/11/2025 (Estimated)
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
-$5.30M-$0.27N/AN/AN/AN/A-130.33%-115.00%N/A

Latest KZR, SPRO, VIRI, and TCRX Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
8/13/2025Q2 2025
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
-$2.15-$1.87+$0.28-$1.87N/AN/A
8/12/2025Q2 2025
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
-$0.38-$0.03+$0.35-$0.03$11.00 million$14.19 million
8/12/2025Q2 2025
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
-$0.28-$0.2848-$0.0048-$0.28$1.31 million$3.08 million
CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
N/AN/AN/AN/AN/A
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
N/AN/AN/AN/AN/A
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
N/AN/AN/AN/AN/A
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
N/AN/AN/AN/AN/A
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
0.03
7.29
7.29
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
N/A
3.97
3.97
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
0.18
7.06
7.06
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
N/A
7.27
7.27

Institutional Ownership

CompanyInstitutional Ownership
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
67.90%
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
25.60%
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
82.83%
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
9.05%

Insider Ownership

CompanyInsider Ownership
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
10.40%
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
5.50%
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
4.35%
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
12.20%
CompanyEmployeesShares OutstandingFree FloatOptionable
Kezar Life Sciences, Inc. stock logo
KZR
Kezar Life Sciences
607.32 million6.56 millionNot Optionable
Spero Therapeutics, Inc. stock logo
SPRO
Spero Therapeutics
15056.28 million53.18 millionOptionable
TScan Therapeutics, Inc. stock logo
TCRX
TScan Therapeutics
10056.75 million54.28 millionNot Optionable
Virios Therapeutics, Inc. stock logo
VIRI
Virios Therapeutics
519.26 million16.91 millionOptionable

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Media Sentiment Over Time

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Kezar Life Sciences stock logo

Kezar Life Sciences NASDAQ:KZR

$3.92 +0.03 (+0.77%)
Closing price 10/3/2025 04:00 PM Eastern
Extended Trading
$3.92 +0.00 (+0.13%)
As of 10/3/2025 05:00 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Kezar Life Sciences, Inc., a clinical-stage biotechnology company, engages in the discovery and development of novel small molecule therapeutics to treat unmet needs in immune-mediated diseases and cancer in the United States. The company's lead product candidate is zetomipzomib (KZR-616), a selective immunoproteasome inhibitor that is in Phase 2b clinical trials for various indications, including lupus nephritis, dermatomyositis, and polymyositis; Phase 1b clinical trials in systemic lupus erythematosus; and completed Phase 2a clinical trials in lupus nephritis. Its preclinical products include KZR-261, a novel first-in-class protein secretion inhibitor for the treatment of tumors resistant to traditional chemotherapeutics. Kezar Life Sciences, Inc. was incorporated in 2015 and is headquartered in South San Francisco, California.

Spero Therapeutics stock logo

Spero Therapeutics NASDAQ:SPRO

$2.05 +0.02 (+0.99%)
Closing price 10/3/2025 04:00 PM Eastern
Extended Trading
$2.05 0.00 (0.00%)
As of 10/3/2025 04:10 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying, developing, and commercializing novel treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States. The company's product candidates include tebipenem pivoxil hydrobromide (HBr), an oral carbapenem-class antibiotic to treat complicated urinary tract infections, including pyelonephritis for adults; SPR206, an intravenous-administered antibiotic against MDR Gram-negative pathogens comprising carbapenem-resistant enterobacterales (CRE), acinetobacter baumannii, and pseudomonas aeruginosa, as well as negative bacterial infections in the hospital setting; and SPR720, a novel oral antibiotic agent for the treatment of non-tuberculous mycobacterial pulmonary disease. It has license agreement with Meiji Seika Pharma Co., Ltd. to support the development of tebipenem HBr; Everest Medicines to develop, manufacture, and commercialize SPR206 in Greater China, South Korea, and Southeast Asian countries; and Vertex Pharmaceuticals Incorporated for patents relating to SPR720, as well as SPR719, an active metabolite. Spero Therapeutics, Inc. was founded in 2013 and is headquartered in Cambridge, Massachusetts.

TScan Therapeutics stock logo

TScan Therapeutics NASDAQ:TCRX

$2.11 -0.07 (-3.21%)
Closing price 10/3/2025 04:00 PM Eastern
Extended Trading
$2.12 +0.02 (+0.71%)
As of 10/3/2025 07:55 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

TScan Therapeutics, Inc., a clinical-stage biopharmaceutical company, develops T cell receptor-engineered T cell (TCR-T) therapies for the treatment of patients with cancer in the United States. The company's lead product candidates include TSC-100 and TSC-101 that is in Phase I clinical trial for the treatment of patients with hematologic malignancies to eliminate residual disease and prevent relapse after allogeneic hematopoietic cell transplantation. It also develops TSC-200, TSC-201, TSC-203, and TSC-204, which are in Phase 1 clinical trial, for the treatment of solid tumors; and TSC-202 to treat solid tumors. In addition, the company develops vaccines for infectious diseases, such as SARS-CoV-2. It has collaborations with Novartis Institutes for BioMedical Research, Inc. To discover and develop novel TCR-T therapies; and Amgen Inc. to identify antigens recognized by T cells in patients with Crohn's disease using TargetScan, a proprietary target discovery platform. TScan Therapeutics, Inc. was incorporated in 2018 and is headquartered in Waltham, Massachusetts.

Virios Therapeutics stock logo

Virios Therapeutics NASDAQ:VIRI

$6.41 -0.01 (-0.16%)
As of 10/3/2025

Virios Therapeutics, Inc., a development-stage biotechnology company, focuses on developing novel antiviral therapies to treat diseases associated with a viral triggered abnormal immune response. The company's lead development candidate is the IMC-1, a fixed dose combination of famciclovir and celecoxib to treat fibromyalgia. It also develops IMC-2, a combination of valacyclovir and celecoxib for the treatment of managing the fatigue, sleep, attention, pain, autonomic function, and anxiety associated with long COVID. The company was formerly known as Innovative Med Concepts, LLC and changed its name to Virios Therapeutics, Inc. in July 2020. The company was founded in 2012 and is headquartered in Alpharetta, Georgia.