Company: GIGGU
Filing Date: 2025-11-12
Form Type: S-4
Source: 0001193125-25-277896
Chunk: 965

Company: GigCapital7 Corp.
Filing Date: 2025-11-12
Form: S-4
Chunk 965
---
eto.

2. Governing Law. This Joinder and all acts and transactions pursuant hereto and the rights and obligations of the parties hereto shall be governed, construed and interpreted in accordance with the laws of the State of Delaware applicable to contracts executed in and to be performed in that State.

3. Counterparts. This Joinder may be executed in two or more counterparts, each of which shall be an original and all of which together shall constitute one instrument.

<div align='center'>[REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

G-11</div>

IN WITNESS WHEREOF, the parties hereto have executed this Joinder to Transaction Support Agreement as of the date first above written.

| STOCKHOLDER NAME |
| By:              |
| Name:            |
| Title:           |
| Address:         |
| Email:           |

Shares of Common Stock beneficially owned on the date hereof: G-12

IN WITNESS WHEREOF, the parties have executed this Joinder to Transaction Support Agreement as of the date first written above.

| GIGCAPITAL7 CORP. |     |                         |
| By:               |     |                         |
| Name:             |     | Dr. Avi S. Katz         |
| Title:            |     | Chief Executive Officer |

G-13

#### TRANSACTION SUPPORT AGREEMENTSPOUSAL CONSENTI [____________], spouse of [____________], have read and approve the foregoing Transaction Support Agreement (the “Agreement”). In consideration of the terms and conditions as set forth in the Agreement, I hereby appoint my spouse as myattorney-in-factwith respect to the exercise of any rights and obligations under the Agreement, and agree to be bound by the provisions of the Agreement insofar as I may have any rights or obligations in the Agreement under the community property laws or similar laws relating to marital or community property in effect in the state of our residence as of the date of the Agreement.Date: ___________________Signature of Spouse: ___________________Printed Name of Spouse: ___________________G-14
**ANNEX H**

<div align='center'>**FORM OF

AMENDED AND RESTATED

REGISTRATION RIGHTS AGREEMENT**</div>

This Amended and Restated Registration Rights Agreement (this “Agreement”) amends and restates in its entirety that certain Registration Rights Agreement dated August 28, 2024 by and among GigCapital7 Corp., a Cayman Islands exempted company (the “Company”), GigAc