Ampliphi Biosciences (APHB) Stock Chart & Stock Price History $1.35 -0.05 (-3.57%) As of 05/16/2025 Add Compare Share Share Chart Stock AnalysisChartSEC FilingsBuy This Stock Ampliphi Biosciences Stock Price Performance The Ampliphi Biosciences (APHB) stock chart highlights key performance trends across multiple timeframes. Since the beginning of the year, the stock decreased 27.03%. In the past month, the stock has increased 9.76%, reflecting recent market activity. As of the latest close, Ampliphi Biosciences traded at $1.35 with a market cap of $45.18 million and volume of 4,814 shares. Five years ago, the stock traded at $3.30, representing a 59.09% decrease over that period. At the time, it had a market cap of $0.00 and a volume of 36,274 shares. Receive APHB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Ampliphi Biosciences and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+4.65%1 Month Performance+9.76%3 Month Performance-35.87%Year-To-Date Performance-27.03%5 Year Performance-59.09% APHB Stock Chart for Thursday, May, 22, 2025 APHB Chart by TradingView Ampliphi Biosciences Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/21/2025$1.35$1.35$1.43$1.324,814 shs$45.18 million05/20/2025$1.35$1.35$1.43$1.324,814 shs$45.18 million05/19/2025$1.35$1.35$1.43$1.324,814 shs$45.18 million05/16/2025$1.29$1.29$1.44$1.2815,202 shs$43.18 million05/15/2025$1.29$1.29$1.44$1.2815,202 shs$43.18 million05/14/2025$1.29$1.29$1.44$1.2815,202 shs$43.18 million05/13/2025$1.29$1.29$1.44$1.2815,202 shs$43.18 million05/12/2025$1.29$1.29$1.44$1.2815,202 shs$43.18 million05/09/2025$1.44$1.36-5.36%$1.42$1.299,461 shs$45.52 million05/08/2025$1.44$1.44$1.48$1.3615,068 shs$48.10 million Get the Latest News and Ratings for APHB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Ampliphi Biosciences and its competitors with MarketBeat's FREE daily newsletter. 05/07/2025$1.44$1.44$1.48$1.3615,068 shs$48.10 million05/06/2025$1.44$1.44$1.48$1.3615,068 shs$48.10 million05/05/2025$1.44$1.44$1.48$1.3615,068 shs$48.10 million05/02/2025$1.59$1.59$1.69$1.5632,874 shs$53.22 million05/01/2025$1.41$1.59+12.77%$1.69$1.5632,874 shs$53.22 million04/30/2025$1.41$1.41$1.49$1.384,005 shs$47.19 million04/29/2025$1.42$1.41-0.71%$1.49$1.384,005 shs$47.19 million04/28/2025$1.42$1.42$1.42$1.384,666 shs$47.53 million04/25/2025$1.23$1.23$1.25$1.207,030 shs$41.17 million04/24/2025$1.23$1.23$1.25$1.207,030 shs$41.17 million04/23/2025$1.23$1.23$1.25$1.207,030 shs$41.17 million04/22/2025$1.23$1.23$1.25$1.207,030 shs$41.17 million04/21/2025$1.23$1.23$1.25$1.207,030 shs$41.17 million Related Companies Cybin Stock Chart LianBio Stock Chart BiomX Stock Chart BioRestorative Therapies Stock Chart iBio Stock Chart PHAXIAM Therapeutics Stock Chart NovaBay Pharmaceuticals Stock Chart PolarityTE Stock Chart 9 Meters Biopharma Stock Chart Hemispherx BioPharma Stock Chart Receive APHB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Ampliphi Biosciences and its competitors with MarketBeat's FREE daily newsletter. This page (NYSEAMERICAN:APHB) was last updated on 5/22/2025 by MarketBeat.com Staff From Our PartnersThink NVDA’s run was epic? You ain’t seen nothin’ yetAsk most investors and they’ll probably tell you Nvidia is the undisputed AI stock of the decade. In 2023, ...Timothy Sykes | SponsoredThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.Paradigm Press | SponsoredElon just did WHAT!?As you may recall, Biden and the Fed were working on a central bank digital currency, or CBDC. Had they got...Brownstone Research | SponsoredThe Collapse Has Already Started — Your 401(k) Is NextThere's a major heist happening on American wealth in real time. Except this one doesn't involve masks or v...American Hartford Gold | SponsoredElon’s 2025 Silver Crisis (What It Means for You)Elon Musk is back in the spotlight—this time for fueling a global scramble for silver. 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