ATAI Investor Presentation Deck

We have cash runway into 2025 Issuer (ticker) ATAI Life Sciences N.V. (NASDAQ: ATAI) Market capitalization Outstanding shares Cash & cash equivalents ~$536M(1) 161.8M(2) $312 million as of June 30th, 2022 • Access to up to $175M from a term loan facility with Hercules Capital Well financed to fund planned operations into 2025 ● ● (1) Market capitalization assumes closing price of $3.31 as of September 30th, 2022 (2) Shares outstanding as of August 10th, 2022 ($) 09

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