Company: ADPT
Filing Date: 2025-04-29
Form Type: DEF 14A
Source: 0001193125-25-103752
Chunk: 5

Company: Adaptive Biotechnologies Corp
Filing Date: 2025-04-29
Form: DEF 14A
Chunk 5
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 the preaddressed, postage-paid envelope provided to you, or by submitting a proxy over the Internet or by telephone by following the instructions on the proxy card. Hold in Street Name.If you hold your shares of common stock in street name, which means your shares are held of record by a broker, bank or other nominee, you will receive a notice from your broker, bank or other nominee that includes instructions on how to vote your shares. Your broker, bank or other nominee will allow you to deliver your voting instructions over the Internet and may also permit you to vote by telephone. In addition, you may request paper copies of the proxy statement and proxy card from your broker by following the instructions on the notice provided by your broker . General.If you vote through these facilities, you should be aware that you may incur costs such as usage charges from telephone companies or Internet service providers and that these costs must be borne by you. If you vote through these facilities, then you need not return a written proxy card by mail. The cost of soliciting proxies will be borne by us. We may reimburse banks and brokers and other persons representing beneficial owners for their reasonable out-of-pocketcosts. We may use the services of our officers, directors and others to solicit proxies, personally or by telephone, facsimile or electronic mail, without additional compensation. YOUR VOTE IS VERY IMPORTANT. You should submit your proxy even if you plan to attend the Annual Meeting via the Internet. If you are a shareholder of record on the Record Date, you can participate in the Annual Meeting online at www.proxydocs.com/ADPT and vote your shares during the Annual Meeting. If you properly give your proxy and submit it to us in time to vote, one of the individuals named as your proxy will vote your shares as you have directed. All shares entitled to vote and represented by properly submitted proxies (including those submitted electronically, telephonically and in writing), and not revoked or superseded, will be voted at the Annual Meeting in accordance with the instructions indicated on those proxies. If no direction is indicated on a proxy, your shares will be voted as follows:

| • |     | FOR the Class III nominee for director named in this proxy statement; |

| • |     | FOR the compensation of our named executive officers, on an advisory basis (“Say-on-Pay”); and |

| • |     | FOR the ratification of the selection of Ernst & Young LLP as our independent registered public accounting firm. |

The proxy gives each of Chad Robins, Kyle Pisk