<ul><li>Google co-founder Sergey Brin has given away more than 4 million Alphabet shares worth nearly $700 million, with the recipient unknown.</li><li>The gift included both Class A and Class C stock, with different voting rights, bringing the total value to over $693 million.</li><li>Brin, ranked 10th on the Bloomberg Billionaires Index with a net worth of about $144 billion, has a history of large donations, including a $600 million gift in May 2023.</li><li>The recipient could be a charity, financial vehicle, or trust. Brin has previously made significant donations, including shares worth over $100 million in 2024, and he has a personal foundation supporting causes like research into Parkinson's disease and the climate crisis.</li></ul>

Sergey Brin just gave away stock worth almost $700 million — but we don't know who to

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