FMR LLC has filed a Schedule 13G with the SEC reporting a 25.7% stake in Cerebras Systems Inc. (NASDAQ: CBRS), based on beneficial ownership of 28,878,217 shares of Class A Common Stock. The filing, an amendment for passive investment disclosure, lists the issuer's principal executive offices at 1237 E. ARQUES AVE., SUNNYVALE, CALIFORNIA, 94085. FMR LLC, whose principal business office is at 245 Summer Street, Boston, Massachusetts 02210, reported that 20,443,122 of these shares are deemed beneficially owned due to direct ownership of an equal number of shares of Class B Common Stock by investment companies advised by Fidelity affiliates. These Class B shares are convertible into Class A shares at a 1:1 exchange rate and represent 15.6388% of the outstanding Class B Common Stock. Assuming conversion of all outstanding Class B shares, the 28,878,217 Class A shares would represent 25.6528% of the outstanding Class A Common Stock.