This company has been marked as potentially delisted and may not be actively trading. NASDAQ:SESN Sesen Bio (SESN) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisBuy This Stock About Sesen Bio Stock (NASDAQ:SESN) 30 days 90 days 365 days Advanced Chart Get Sesen Bio alerts:Sign Up Key Stats Today's Range N/A50-Day Range$0.63▼$12.9952-Week Range N/AVolume93,330 shsAverage Volume1.07 million shsMarket Capitalization$2.56 billionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company OverviewSesen Bio, Inc. engages in designing, engineering, and developing targeted protein therapeutics. It offers Vicineum and Proxinium, which target tumor cell surface antigens that allow for rapid internalization into the targeted cancer cell and also have limited expression on normal cells. The company was founded by Reza Dana, K. Christopher Garcia, Gregory L. Verdine, Casey T. Weaver and K. Dane Wittrup on February 25, 2008 and is headquartered in Cambridge, MA.Read More… Receive SESN Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Sesen Bio and its competitors with MarketBeat's FREE daily newsletter. Email Address SESN Stock News HeadlinesTrey MewesApril 10, 2024 | startribune.comSesen Bio (NASDAQ: SESN)August 4, 2023 | fool.comWhy America’s building cathedrals againWhile the media fixates on tariffs and market noise, something historic is unfolding behind the scenes. With backing from the White House and Silicon Valley billionaires, a vast network of AI-powered facilities is taking shape across the country. They’re being called “Cathedrals of Light” — and they hold the keys to nuclear fusion, advanced medicine, and defense breakthroughs. I’ve spent 25 years identifying seismic shifts like this — and I believe this could be the biggest one yet for early investors.May 14, 2025 | Porter & Company (Ad)After revisions, Philadelphia-based Carisma Therapeutics poised to close merger with Sesen BioMarch 6, 2023 | bizjournals.comSesen Bio wins shareholder approval for Carisma mergerMarch 2, 2023 | msn.comSesen Bio Stockholders Approve Merger with Carisma TherapeuticsMarch 2, 2023 | finance.yahoo.comSesen Bio Reports Fourth Quarter and Full-Year 2022 Financial ResultsFebruary 28, 2023 | finance.yahoo.comSHAREHOLDER ALERT: Weiss Law Reminds SESN, MLVF, VLON, and SHBI Shareholders About Its Ongoing InvestigationsFebruary 24, 2023 | benzinga.comSee More Headlines SESN Stock Analysis - Frequently Asked Questions How were Sesen Bio's earnings last quarter? Sesen Bio, Inc. (NASDAQ:SESN) released its quarterly earnings data on Sunday, November, 7th. The company reported $7.20 EPS for the quarter, beating analysts' consensus estimates of ($1.40) by $8.60. When did Sesen Bio's stock split? Sesen Bio's stock reverse split on the morning of Wednesday, March 8th 2023. The 1-20 reverse split was announced on Wednesday, March 8th 2023. The number of shares owned by shareholders was adjusted after the market closes on Wednesday, March 8th 2023. An investor that had 100 shares of stock prior to the reverse split would have 5 shares after the split. What other stocks do shareholders of Sesen Bio own? Based on aggregate information from My MarketBeat watchlists, some other companies that Sesen Bio investors own include Predictive Oncology (POAI), Ford Motor (F), Zomedica (ZOM), NIO (NIO), Bank of America (BAC), Wells Fargo & Company (WFC) and OPKO Health (OPK). Company Calendar Last Earnings11/07/2021Today5/13/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Pharmaceutical preparations Sub-IndustryN/A Current SymbolNASDAQ:SESN CIK1485003 Webwww.sesenbio.com Phone(617) 444-8550Fax617-858-0911Employees35Year FoundedN/AProfitability EPS (Most Recent Fiscal Year)($0.10) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income$-19,880,000.00 Net MarginsN/A Pretax Margin-59.40% Return on Equity6.70% Return on Assets5.41% Debt Debt-to-Equity RatioN/A Current Ratio6.10 Quick Ratio6.10 Sales & Book Value Annual Sales$40 million Price / Sales0.00 Cash FlowN/A Price / Cash Flow3.39 Book Value$0.78 per share Price / BookN/AMiscellaneous Outstanding Shares203,490,000Free Float196,980,000Market Cap$2.56 billion OptionableOptionable Beta0.83 10 Stocks Set to Soar in Spring 2025Enter your email address and we'll send you MarketBeat's list of ten stocks that are set to soar in Spring 2025, despite the threat of tariffs and other economic uncertainty. These ten stocks are incredibly resilient and are likely to thrive in any economic environment.Get This Free Report This page (NASDAQ:SESN) was last updated on 5/14/2025 by MarketBeat.com Staff From Our PartnersGold Alert: The Truth About Fort Knox Is ComingOwning physical gold isn’t the best way to profit. I’ve found a better way to invest in gold—one that’s alr...Golden Portfolio | SponsoredThink 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 | SponsoredTrump’s betrayal exposed Trump’s third-term comments grabbed headlines, but the bigger story is what he’s planning next. A new report ...Porter & Company | SponsoredSilver Demand Is Soaring-Supply Can't Keep UpSilver demand hit 1.16 billion ounces in 2024-while supply fell short again for the fourth year in a row. 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