Bryan Timm - 07 Oct 2025 Form 3 Insider Report for GigCapital8 Corp. (GIW)

Reporting relationship: Director
Issuer ticker: GIW
Reported as of: 07 Oct 2025
Net transaction value: $0
SEC form: 3
Accepted by SEC: 15 Oct 2025, 11:55:49 UTC
Prior SEC filing: 01 Mar 2023
Next SEC filing: 02 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Bryan Timm

Key filing fact

Bryan Timm filed Form 3 for GigCapital8 Corp. (GIW) on 15 Oct 2025.

Key facts

This page summarizes Bryan Timm's Form 3 filing for GigCapital8 Corp. (GIW).
0 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 15 Oct 2025, 11:55.

Change

Previous filing in this sequence was filed on 01 Mar 2023.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0001201110 Primary reporting owner

TIMM BRYAN

Relationship: Director
Address: C/O GIGCAPITAL8 CORP., 1731 EMBARCADERO RD., SUITE 200, PALO ALTO
Signature: /s/ Bryan Timm
Signature date: 15 Oct 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GIW holding

Class A ordinary shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,000
Date: 07 Oct 2025
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GIW holding Derivative

Class B ordinary shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Oct 2025
Ownership: Direct
Underlying class: Class A ordinary shares
Underlying amount: 106,647
Exercise price
Footnotes: F2, F3

GIW holding Derivative

Rights

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Oct 2025
Ownership: Direct
Underlying class: Class A ordinary shares
Underlying amount: 2,000
Exercise price
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Includes 10,000 Class A ordinary shares underlying the private placement units purchased concurrently with the initial public offering. Each private placement unit consisting of one Class A ordinary share and one right to receive one-fifth of one Class A ordinary share upon the completion of the Issuer's initial business combination.

Footnote F2

As a result of the underwriters' full exercise of the over-allotment option to purchase 3,300,000 units on October 7, 2025, no such shares are subject to forfeiture.

Footnote F3

As described in the Issuer's registration statement on Form S-1, as amended (File No. 333-289479) under the heading "Description of Securities-Ordinary Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination or earlier at the option of the holder on a one-for-one basis, subject to certain adjustments described therein and have no expiration date.

Footnote F4

Includes 10,000 rights underlying the private placement units, which were sold in a private placement taking place simultaneously with the Issuer's initial public offering. Each right is exchangeable for one-fifth of one Class A ordinary share upon the completion of the Issuer's initial business combination.