I-mab

Form 420-F13D

Insider Trading (Form 4)

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Mark Hagler, Chief Commercial Officer of NovaBridge Biosciences, received a significant stock option grant on July 8, 2026, as detailed in a Form 4 filing.
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I-mab
Lin Liwei Lorraine, General Counsel at NovaBridge Biosciences, received a significant employee stock option grant.
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NovaBridge Biosciences CEO Srishti Gupta reports the acquisition of 3,000,000 employee stock options with an exercise price of $2.01.
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Claire Xu Cong, SVP of Clinical Development at NovaBridge Biosciences, reported transactions involving ordinary shares and restricted stock units.
IMAB
I-mab
Director Fu Wei of NovaBridge Biosciences reported transactions involving employee stock options and restricted stock units.
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Sean Wuxiong Cao, a Director and Chief Business Development Officer at NovaBridge Biosciences, reported significant equity transactions including the acquisition of Restricted Stock Units and Employee Stock Options.

Schedule 13D - Activist Investments

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An amendment to Schedule 13D reveals updated beneficial ownership percentages in NovaBridge Biosciences by Wei Fu and affiliated C-Bridge entities, with Mr. Fu holding 11.5%.
IMAB
I-mab
An amendment to Schedule 13D clarifies beneficial ownership of I-MAB shares by CBC Group entities and Wei Fu, explicitly disclaiming a 'group' with Everest Medicines Limited.
Capital raise
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I-mab
Everest Medicines Limited has acquired a significant stake in I-MAB, increasing its beneficial ownership to 16.1% through a recent underwritten offering.
Capital raise
IMAB
I-mab
A group of investment entities and individuals, led by Wei Fu, has significantly increased their beneficial ownership in I-MAB, triggering a Schedule 13D filing with the SEC.
Capital raise