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GBIO stock increases 33.8% after hours.

After Hours Gainer

GBIO Generation Bio Co.4.05+0.01+0.3%

After Hours:5.42+1.37 (+33.8%)

Generation Bio Announces New Data for Its Novel ctLNP Delivery System and Early T Cell Programs and Reports Second Quarter 2025 Financial Results

Globe NewswireTue, 12-Aug 4:05 PM
GBIO stock increases 25.9% after hours.

After Hours Gainer

GBIO Generation Bio Co.4.05+0.01+0.3%

After Hours:5.10+1.05 (+25.9%)

Generation Bio Announces New Data for Its Novel ctLNP Delivery System and Early T Cell Programs and Reports Second Quarter 2025 Financial Results

Globe NewswireTue, 12-Aug 4:05 PM
Unusual Option Volume

GBIO Generation Bio Co.5.18+1.30 (+33.5%)

Generation Bio Co. trades 2,091 contracts. News: Moderna and Generation Bio Announce Strategic Collaboration to Develop Non-Viral Genetic Medicines
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