Company: GIGGU
Filing Date: 2025-11-12
Form Type: S-4
Source: 0001193125-25-277896
Chunk: 1067

Company: GigCapital7 Corp.
Filing Date: 2025-11-12
Form: S-4
Chunk 1067
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5

| with an offering of securities subject to Rule 415, will be filed as a part of an amendment to the registration statement and will not be used until such amendment is effective, and that, for purposes of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. |

| H. | Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue. |

| I. | To supply by means of a post-effective amendment all information concerning a transaction, and the company being acquired involved therein, that was not the subject of and included in the registration statement when it became effective. |

II-6

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, as amended, the Co-Registranthas duly caused this Registration Statement on Form S-4to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Palo Alto, State of California, on the12th day of November, 2025.

| GigCapital7 Corp. |     |                         |
| By:               |     | /s/ Dr. Avi S. Katz     |
| Name:             |     | Dr. Avi S. Katz         |
| Title:            |     | Chief Executive Officer |

POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned constitutes and appoints Dr. Avi S. Katz