Company: DAWN
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0001140361-25-013462
Chunk: 8

Company: Day One Biopharmaceuticals, Inc.
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 8
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 voting instructions from the beneficial owner, or (ii) the broker lacked discretionary authority to vote the shares. Broker non-votes are counted for purposes of determining whether a quorum is present. A broker is entitled to vote shares held for a beneficial owner on “routine” matters without instructions from the beneficial owner of those shares. Absent instructions from the beneficial owner of such shares, a broker is not entitled to vote shares held for a beneficial owner on “non-routine” matters. At our Annual Meeting, only Proposal No. 2 is considered a routine matter and brokers have discretionary authority to vote on shares that are beneficially owned on Proposal No. 2. If a broker chooses not to vote shares for or against Proposal No. 2, it would have the same effect as an abstention. The other proposals presented at the Annual Meeting are non-routine matters. Broker non-votes are not deemed to be shares entitled to vote on and will have no effect on the outcome of Proposal No. 1, Proposal No. 2 or Proposal No. 3. Accordingly, we encourage you to provide voting instructions to your broker, whether or not you plan to attend the Annual Meeting. Recommendations of Our Board of Directors on Each of the Proposals Scheduled to be Voted on at the Annual Meeting Our board of directors recommends that you vote “FOR ALL NOMINEES” of the Class I directors named in this Proxy Statement, “FOR” the ratification of the appointment of PwC as our independent registered public accounting firm for the year ending December 31, 2025 and “FOR” the approval, on a non-binding advisory basis, of the compensation of our named executive officers. None of our directors or executive officers has any substantial interest in any matter to be acted upon, other than with respect to Proposal No. 1 and Proposal No. 3. Voting Instructions; Voting of Proxies

| Vote By Internet                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     | Vote By Telephone or Internet                                                                                                 |     | Vote By Mail                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| You may vote via the virtual meeting website-any stockholder can attend the Annual Meeting by visiting www.virtualshareholdermeeting.com/DAWN2025, where stockholders may vote and submit questions during the meeting. The meeting starts at 10:00 a.m. Pacific Time. Please have your 16-Digit Control Number to join the Annual Meeting. Instructions on how to attend and participate via the Internet, including how to demonstrate proof of stock ownership, are posted at