Company: GIGGU
Filing Date: 2025-09-29
Form Type: 425
Source: 0001193125-25-221783
Chunk: 229

Company: GigCapital7 Corp.
Filing Date: 2025-09-29
Form: 425
Chunk 229
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 GigCapital7 or the Company to notify GigCapital7’s transfer agent that there is a stop transfer order with
respect to all of the Sponsor Shares (and that this Agreement places limits on the voting of the Sponsor Shares). Sponsor agrees with, and covenants to, GigCapital7 and the Company that Sponsor shall not request that GigCapital7 register the
Transfer (by book-entry or otherwise) of any certificated or uncertificated interest representing any of the Sponsor Shares.

2

3. . The Sponsor agrees not to directly or indirectly,
through any officer, director, representative, agent or otherwise, (a) solicit, initiate or knowingly encourage (including by furnishing information) the submission of, or participate in any discussions or negotiations regarding, any
transaction in violation of the BCA or (b) participate in any discussions or negotiations regarding, or furnish to any Person or other entity or “group” within the meaning of Section 13(d) of the Exchange Act, any information
with the intent to, or otherwise cooperate in any way with respect to, or knowingly assist, participate in, facilitate or encourage, any unsolicited proposal that constitutes, or may reasonably be expected to lead to, a business combination proposal
or other transaction in violation of the BCA. Sponsor shall, and shall cause its affiliates and representatives to, immediately cease any and all existing discussions or negotiations with any Person (other than with the Company, its stockholders and
their respective affiliates and Representatives) conducted prior to the date hereof with respect to, or which is reasonably likely to give rise to or result in, a business combination proposal. If the Sponsor receives any inquiry or proposal with
respect to a business combination proposal, then Sponsor shall promptly (and in no event later than twenty-four (24) hours after the Sponsor becomes aware of such inquiry or proposal) notify such Person in writing that GigCapital7 is subject to
an exclusivity agreement with respect to the Merger that prohibits Sponsor from considering such inquiry or proposal.

4. .

a. . The Sponsor represents and warrants that any proxies heretofore given in
respect of the Sponsor Shares that may still be in effect are not irrevocable, and such proxies have been or are hereby revoked.

b.
. The Sponsor hereby irrevocably grants to, and appoints, the Company and any individual designated in writing by the Company, and each of them individually, as the Sponsor’s proxy and attorney-in-fact (with full power of substitution), for and