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) 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 Overview Sesen 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. 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SESN Stock News HeadlinesTrey MewesApril 9, 2024 | startribune.comSSesen Bio (NASDAQ: SESN)August 4, 2023 | fool.comREVEALED: Something Big Happening Behind White House DoorsWhat I just learned about what’s unfolding in the White House is truly stunning… And you need to see it for yourself. Once you see what’s unfolding behind the scenes, you’ll understand why I rushed this interview and opportunity to you today.October 14 at 2:00 AM | Paradigm Press (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) posted its quarterly earnings results on Sunday, November, 7th. The company reported $7.20 EPS for the quarter, topping analysts' consensus estimates of ($1.40) by $8.60. When did Sesen Bio's stock split? Sesen Bio's stock reverse split on 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 closing bell 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 Earnings11/07/2021Today10/14/2025Fiscal 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 (Trailing Twelve Months)($0.10) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$19.88 million 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 The Best High-Yield Dividend Stocks for 2025Discover the 10 Best High-Yield Dividend Stocks for 2025 and secure reliable income in uncertain markets. Download the report now to identify top dividend payers and avoid common yield traps.Get This Free Report This page (NASDAQ:SESN) was last updated on 10/14/2025 by MarketBeat.com Staff From Our PartnersThe Army Just Got a New Drone SupplierA cutting-edge drone developer just secured a U.S. Army deal to supply its Flex FPV Modular Drones and build a...The Tomorrow Investor | SponsoredURGENT: The Market's 3 Red Flags Are FlashingHere’s the uncomfortable truth: The smartest investors in the world are already preparing for a crash befor...StockEarnings | SponsoredGold to $27,533?This week, U.S. gold reserves hit an unprecedented $1 TRILLION in value... 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