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Unusual Option Volume

ANRO Alto Neuroscience14.29+0.49 (+3.6%)

Alto Neuroscience trades 2,149 contracts. The highest volume is in the 17-Apr-26 15 calls, which is 5.0% above the current price.
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Unusual Option Volume

ANRO Alto Neuroscience14.36+2.25 (+18.6%)

Alto Neuroscience trades 2,183 contracts. The highest volume is in the 17-Apr-26 15 calls, which is 4.5% above the current price.
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Unusual Option Volume

ANRO Alto Neuroscience11.20+5.12 (+84.2%)

Alto Neuroscience trades 2,196 contracts. The company has the following event: FDA Meeting on ALTO-207 Development Acceleration on Oct 20, 2025. News: Alto Neuroscience Announces $50 Million Private Placement Financing
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Unusual Option Volume

ANRO Alto Neuroscience6.78+2.37 (+53.7%)

Alto Neuroscience trades 2,118 contracts. The company has the following event: on Oct 3, 2025. News: Johnson Fistel, PLLP Investigates Claims on Behalf of Alto Neuroscience, Inc. Long-Term Shareholders
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Unusual Option Volume

ANRO Alto Neuroscience5.04-9.49 (-65.3%)

Alto Neuroscience trades 2,923 contracts. News: ANRO Investors Have Opportunity to Join Alto Neuroscience, Inc. Fraud Investigation with the Schall Law Firm
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ANRO #AltoNeuroscience stock declines -60.0% in after hours trading. See the latest news.

After Hours Decliner

ANRO Alto Neuroscience14.53+0.24+1.7%

After Hours:5.81-8.72 (-60.0%)

ANRO Investors Have Opportunity to Join Alto Neuroscience, Inc. Fraud Investigation with the Schall Law Firm

Business WireTue, 22-Oct 9:53 PM
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