Trinity Capital Inc

You may vote virtually at the Annual Meeting or by proxy in accordance with the instructions provided in this Proxy Statement. You also may authorize a proxy by telephone or through the internet using the information included in your Notice of Internet Availability of Proxy Materials or proxy card. See “How may I participate in and vote at the Annual Meeting?” above. Authorizing a proxy through the internet requires you to input the control number located on your Notice of Internet Availability of Proxy Materials or proxy card. After inputting the control

number, you will be prompted to direct your proxy to vote on each proposal. You will have an opportunity to review your directions and make any necessary changes before submitting your directions and terminating the internet link. When voting by proxy and mailing your proxy card, you are required to:

• indicate your instructions on the proxy card;

• date and sign the proxy card;

• mail the proxy card promptly in the envelope provided, which requires no postage if mailed in the United States; and

• allow sufficient time for the proxy card to be received on or before 11:59 p.m., Eastern Time, on June 11, 2024.

If your Shares of the Company’s common stock are held in “street name” through a broker, bank or other nominee, these proxy materials are being forwarded to you by your account holder, along with voting instructions. As the beneficial owner, you have the right to direct your account holder how to vote your Shares, and the account holder is required to vote your Shares in accordance with your instructions. Your broker cannot vote your Shares on your behalf without your instructions for non-routine matters. A “broker non-vote” with respect to a matter occurs when a broker, bank or other nominee holding Shares on behalf of a beneficial owner votes on some matters on the proxy card, but not on other matters, because the broker has not received voting instructions from the beneficial owner on a particular proposal and does not have discretionary authority (or declines to exercise discretionary authority) to vote the Shares on such proposal. Brokers, banks and other nominees will not have discretionary authority to vote on Proposal 1, Proposal 2 and Proposal 3; therefore, broker non-votes may exist in connection with Proposal 1, Proposal 2 and Proposal 3. Any broker non-votes will have no effect on the result of the vote for Proposal 1, Proposal 2 or Proposal 3. Proposal 4, the ratification of the selection of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2024, is considered a routine matter under applicable rules. Brokers, banks and other nominees may generally vote in their discretion on routine matters; therefore, no broker non-votes are expected in connection with Proposal 4. In addition, as the beneficial owner of our Shares, you are entitled to participate in the Annual Meeting. If you are a beneficial owner, however, you may not vote your Shares at the Annual Meeting unless you obtain a legal proxy executed in your favor from the account holder of your Shares.

You may receive more than one proxy statement and proxy card or voting instructions form if your Shares are held through more than one account (e.g., through different account holders). Each proxy card or voting instructions form only covers those Shares held in the applicable account. If you hold Shares in more than one account, you must provide voting instructions as to all your accounts to vote all your Shares.

Whether or not you expect to participate in the Annual Meeting virtually through the live webcast, we urge you to submit a proxy to vote your Shares in advance of the Annual Meeting by (a) visitingwww.proxyvote.com and following the on screen instructions (have your Notice of Internet Availability of Proxy Materials or proxy card available when you access the webpage), or (b) calling toll-free 1-800-690-6903 from any touch-tone phone and follow the instructions (have your Notice of Internet Availability of Proxy Materials or proxy card available when you call), or (c) submitting your proxy card by mail by using the previously provided self-addressed, stamped envelope. Submitting a proxy will not prevent you from revoking a previously submitted proxy or changing your vote as described herein, but it will help to secure a quorum and avoid added solicitation costs.

Important notice regarding the availability of proxy materials for the Annual Meeting. This Proxy Statement and the Annual Report are available online atwww.proxyvote.com. The Notice of Internet Availability of Proxy Materials contains instructions on how you can elect to receive a printed copy of this Proxy Statement and the Annual Report.

If you plan to attend the Annual Meeting and vote your Shares virtually, you will need your control number located on your Notice of Internet Availability of Proxy Materials in order to be admitted to the Annual Meeting.