Beneficial Ownership Report · SCHEDULE 13G/A
GigCapital8 Corp.
GIWNASDAQEQUITYCurrent
Beneficial Ownership Report
Structured filing — SCHEDULE 13G/A
primary_doc.xml
Amendment · This filing reports the amendment as submitted.
Subject company
- Company
- GigCapital8 Corp.
- Company CIK
- 0002080019
- Street
- 1731 Embarcadero Rd.
- Street (continued)
- Suite 200
- City
- Palo Alto
- State / country code
- CA
- Postal code
- 94303
Statement details
- Amendment number
- 1
- Security class
- Class A ordinary shares, par value $0.0001 per share
- Event date
- 09/30/2026
- Rule designation
- Rule 13d-1(b)
Reporting person 1
- Name
- W. R. Berkley Corporation
- Citizenship / organization
- DE
- Reporting person type
- CO
- Aggregate amount owned
- 1,588,000.00
- Percent of class
- 6.2
- Sole voting power
- 0.00
- Shared voting power
- 1,588,000.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 1,588,000.00
- Aggregate excludes certain shares
- N
Reporting person 2
- Name
- Berkley Insurance Company
- Citizenship / organization
- DE
- Reporting person type
- CO · IC
- Aggregate amount owned
- 1,588,000.00
- Percent of class
- 6.2
- Sole voting power
- 0.00
- Shared voting power
- 1,588,000.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 1,588,000.00
- Aggregate excludes certain shares
- N
Item 1
Issuer
GigCapital8 Corp.
Principal executive office address
1731 Embarcadero Rd., Suite 200, Palo Alto, California, 94303
Item 2
Citizenship
US
Filing person
W. R. Berkley Corporation
Principal business or residence address
475 Steamboat Road Greenwich, CT 06830
Item 3
Not applicable indication
N
Type of filing person
IC · HC
Item 4
Percent of class
6.2
Amount beneficially owned
1,588,000
Sole voting power
0
Shared voting power
1,588,000
Sole dispositive power
0
Shared dispositive power
1,588,000
Item 5
Not applicable indication
Y
Ownership of 5% or less
N
Item 6
Not applicable indication
Y
Item 7
Not applicable indication
N
Subsidiaries
See Exhibit 99.1
Item 8
Not applicable indication
Y
Item 9
Not applicable indication
Y
Item 10
Not applicable indication
N
Certifications
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
Signature 1
- Reporting person
- W. R. Berkley Corporation
- Signed
- /s/ Richard M. Baio
- Title
- Richard M. Baio/Executive Vice President and Chief Financial Officer
- Date
- 11/09/2026
Signature 2
- Reporting person
- Berkley Insurance Company
- Signed
- /s/ Richard M. Baio
- Title
- Richard M. Baio/Executive Vice President and Treasurer
- Date
- 11/09/2026
Filed exhibits
Company context
GigCapital8 Corp. is a Private-to-Public Equity (PPE)™ company, also known as a special purpose acquisition company, with a Mentor-Investor™ methodology and a mission to partner with a high technology differentiating company to forge a successful path to the public markets through a business combination. GigCapital8 aims to partner with an innovative company with exceptional leaders in order to create an industry-leading partnership that will be successful for years to come.