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Compare · GBIO vs PASG

GBIO vs PASG

Side-by-side comparison of Generation Bio Co. (GBIO) and Passage Bio Inc. (PASG): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both companies sit in the Health Care sector. GBIO focuses on Biotechnology: Pharmaceutical Preparations, while PASG focuses on Biotechnology: Biological Products (No Diagnostic Substances).
  • GBIO is the larger of the two at $347.7M, about 19.5x PASG ($17.9M).
  • Over the past year, GBIO is up 26.4% and PASG is down 37.5% - GBIO leads by 63.9 points.
  • PASG has hit the wire 8 times in the past 4 weeks while GBIO has been quiet.
  • PASG has more recent analyst coverage (11 ratings vs 8 for GBIO).
PerformanceGBIO+26.35%PASG-34.55%
2025-06-10+0.00%2026-02-06
MetricGBIOPASG
Company
Generation Bio Co.
Passage Bio Inc.
Price
$5.37-6.20%
$5.55+2.40%
Market cap
$347.7M
$17.9M
1M return
-1.10%
+38.40%
1Y return
+26.35%
-37.50%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Biological Products (No Diagnostic Substances)
Exchange
NASDAQ
NASDAQ
IPO
2020
2020
News (4w)
0
8
Recent ratings
8
11
GBIO

Generation Bio Co.

Generation Bio Co., a genetic medicines company, develops gene therapies for the treatment of rare and prevalent diseases. The company is developing a portfolio of programs for rare and prevalent diseases of the liver and retina. It also focuses on the diseases of skeletal muscle, central nervous system, and oncology. The company was formerly known as Torus Therapeutics, Inc. and changed its name to Generation Bio Co. in November 2017. Generation Bio Co. was incorporated in 2016 and is headquartered in Cambridge, Massachusetts.

PASG

Passage Bio Inc.

Passage Bio, Inc., a genetic medicines company, develops transformative therapies for rare monogenic central nervous system (CNS) diseases. It develops PBGM01, which utilizes a proprietary, AAVhu68 capsid to deliver to the brain and peripheral tissues a functional GLB1 gene encoding lysosomal acid beta-galactosidase (ß-gal) for infantile GM1; PBFT02, which utilizes an AAV1 capsid to deliver to the brain a functional granulin, or GRN, gene encoding progranulin, or PGRN, for the treatment of FTD-GRN; and PBKR03, which utilizes a proprietary, AAVhu68 capsid to deliver to the brain and peripheral tissues a functional GALC gene encoding the hydrolytic enzyme galactosylceramidase for infantile Krabbe disease. The company also develops PBML04 for the treatment of metachromatic leukodystrophy; PBAL05 for the treatment of amyotrophic lateral sclerosis; and PBCM06 for the treatment of Charcot-Marie-Tooth Type 2A, as well as programs for the treatment of adult CNS indication. It has a strategic research collaboration with the Trustees of the University of Pennsylvania's Gene Therapy Program; and collaboration agreement, and a development services and clinical supply agreement with Catalent Maryland, Inc. The company was incorporated in 2017 and is headquartered in Philadelphia, Pennsylvania.