Portage Biotech Stock More Than Doubles On Immunova Deal Potential: Retail Sees Big Opportunity

Under the terms of a proposed deal, Immunova, or its affiliate, would acquire the entire share capital of Portage subsidiary iOx Therapeutics.
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Rising stock market chart on a trading board background. | Image source: Yuichiro Chino on Getty Images
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Ramakrishnan M·Stocktwits
Updated Mar 05, 2026   |   2:29 PM EST
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Shares of Portage Biotech Inc. surged more than 150% on Tuesday morning, reaching levels last seen in late September. 

The rally follows news that the clinical-stage immuno-oncology company has entered into a letter of intent with Immunova, a biotech firm, to negotiate a potential deal involving Portage subsidiary iOx Therapeutics.

Under the terms of the proposed deal, Immunova, or its affiliate, would acquire the entire share capital of iOx Therapeutics, a company focused on developing liposomal iNKT agonists. 

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iOx’s lead candidate, PORT-2, has shown promising preliminary clinical results, the companies said in a joint statement. 

While the financial terms of the agreement were not disclosed, the deal could significantly impact both companies’ pipelines.

Brian Horsburgh, PhD, CEO of Immunova, said: “We are delighted to continue our collaboration with Portage and potentially add the iOx assets to our own pipeline, creating a clinical-stage biotech company focused on lipid drugs and delivery systems that empower immune cells to better fight disease.”

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On Stocktwits, Portage Biotech shares were among the top 10 trending symbols by 10 AM ET. 

A poll on the platform revealed that 42% of retail investors believe the stock will end the week above $12, implying a more than 40% surge from current levels.

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Despite the recent rally, Portage stock has lost nearly 80% year-to-date.

For updates and corrections, email newsroom[at]stocktwits[dot]com.

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