Company: ATRA
Filing Date: 2025-04-28
Form Type: DEF 14A
Source: 0000950170-25-059322
Chunk: 9

Company: Atara Biotherapeutics, Inc.
Filing Date: 2025-04-28
Form: DEF 14A
Chunk 9
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 public announcement of the date of such meeting is made.

What are broker non-votes and what is broker discretionary voting?

If you are a beneficial owner of shares held in a brokerage account and you do not instruct your broker, bank or other agent how to vote your shares, your broker, bank or other agent may still be able to vote your shares in its discretion. Under the rules of the New York Stock Exchange, which are also applicable to Nasdaq-listed companies, brokers, banks and other securities intermediaries that are subject to New York Stock Exchange rules may use their discretion to vote your “uninstructed” shares on matters considered to be “routine” under New York Stock Exchange rules but not with respect to “non-routine” matters. A broker non-vote occurs when a broker, bank or other agent has not received voting instructions from the beneficial owner of the shares and the broker, bank or other agent cannot vote the shares because the matter is considered “non-routine” under NYSE rules. The Company believes that Proposal 4 is the only “routine” matter to be presented at the Annual Meeting on which brokers will be permitted to vote shares on your behalf, even without voting instructions. If your broker votes these shares on your behalf, your shares will be counted as present for purposes of establishing a quorum at the Annual Meeting.

Other than Proposal 4 the Company believes that all proposals set forth in this Proxy Statement are considered “non-routine” matters and brokers will not be able to vote on behalf of their clients if no voting instructions have been furnished. A “broker non-vote” share will not affect the determination of whether the matter is approved. Please give your broker voting instructions on all proposals to ensure your shares are represented in the vote.

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How many votes are needed to approve each proposal? The following table summarizes the minimum vote needed to approve each proposal and the effect of abstentions and broker non-votes.

| ProposalNumber |     | Proposal Description                                                                                                                                     |     | Vote Required for Approval                                                                                                                                                                       |     | Effect ofAbstentions                            |     | Effect ofBrokerNon-Votes                        |
| 1              |     | Election of directors                                                                                                                                    |     | Plurality of the votes of shares present in person, present by remote communication, if applicable, or represented by proxy and entitled to vote on the matter                                   |     | None                                            |     | None                                            |
| 2              |     | Advisory approval of the compensation of our