Investing.com’s stocks of the week

Investing.com's stocks of the week highlight corporate upheaval and takeover interest driving market movements. MongoDB experienced an 18.5% decline following CEO Chirantan Desai's resignation to lead a new AI initiative at Meta Platforms, with former CEO Dev Ittycheria stepping in as interim CEO. Synopsys surged 12.8% after setting long-term targets at its 2026 Investor Day, partnering with OpenAI for GPT-Synopsys and collaborating with Amazon for custom silicon development.

Mattel jumped 18.8% following takeover interest from brand-licensing company Authentic Brands Group, potentially valuing the company at over $20 per share.

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