Purple Biotech (PPBT) Stock Chart & Stock Price History $2.70 -0.28 (-9.40%) Closing price 04:00 PM EasternExtended Trading$2.70 +0.00 (+0.11%) As of 08:00 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 Massive. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Purple Biotech Stock Price Performance The Purple Biotech (PPBT) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 88.61%, with a year-to-date return of -58.94%. In the past month, the stock has decreased 42.80%, reflecting recent market activity. As of the latest close, Purple Biotech traded at $2.98 with a market cap of $3.81 million and volume of 6.31 million shares. 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Read our full terms of service and privacy policy. 5 Day Performance-31.47%1 Month Performance-42.80%3 Month Performance-45.47%Year-To-Date Performance-58.94%1 Year Performance-88.61% PPBT Stock Chart for Thursday, May, 21, 2026 PPBT Chart by TradingView Purple Biotech 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 DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/21/2026$2.98$2.70-9.40%$2.89$2.52110,106 shs$3.47 million05/20/2026$3.51$2.98-15.10%$3.24$2.716.31 million shs$3.81 million05/19/2026$3.82$3.51-8.16%$3.99$3.4720,174 shs$4.49 million05/18/2026$3.94$3.82-2.99%$4.00$3.767,773 shs$4.91 million05/15/2026$3.69$3.94+6.78%$4.05$3.8814,213 shs$5.06 million05/14/2026$3.86$3.69-4.50%$3.97$3.4924,200 shs$4.72 million05/13/2026$3.85$3.86+0.36%$3.99$3.815,179 shs$4.95 million05/12/2026$4.06$3.85-5.17%$4.06$3.827,948 shs$4.95 million05/11/2026$4.13$4.06-1.69%$4.15$3.8214,828 shs$5.20 million05/08/2026$4.13$4.13+0.10%$4.20$3.953,347 shs$5.02 million Get the Latest News and Ratings for PPBT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Purple Biotech and its competitors with MarketBeat's FREE daily newsletter. 05/07/2026$4.18$4.13-1.29%$4.30$3.919,953 shs$5.28 million05/06/2026$4.22$4.18-0.83%$4.20$4.162,972 shs$5.35 million05/05/2026N/A$4.22$4.46$4.154,314 shs$5.40 million04/30/2026$4.23$4.13-2.36%$4.47$4.133,245 shs$5.31 million04/29/2026$4.44$4.23-4.64%$4.44$4.233,408 shs$5.44 million04/28/2026$4.59$4.44-3.36%$4.63$4.314,241 shs$5.68 million04/27/2026$4.54$4.59+1.10%$4.59$4.313,044 shs$5.88 million04/24/2026$4.55$4.54-0.22%$4.61$4.463,733 shs$5.81 million04/23/2026$4.95$4.55-8.08%$4.85$4.539,984 shs$5.85 million04/22/2026$4.72$4.95+4.87%$4.95$4.522,443 shs$6.34 million04/21/2026$4.95$4.72-4.65%$4.95$4.618,868 shs$6.04 million04/20/2026$4.87$4.95+1.64%$5.00$4.739,518 shs$6.34 million Related Companies Pasithea Therapeutics Stock Chart Lipocine Stock Chart Cocrystal Pharma Stock Chart NLS Pharmaceutics Stock Chart Longeveron Stock Chart Traws Pharma Stock Chart Natural Alternatives International Stock Chart Passage Bio Stock Chart Applied Therapeutics Stock Chart IN8bio Stock Chart Receive PPBT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Purple Biotech and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:PPBT) was last updated on 5/21/2026 by MarketBeat.com Staff. 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